Exhibit 10











                   AGREEMENT TO CONTRIBUTE, LEASE AND SUBLEASE

                                      AMONG

                               SPRINT CORPORATION,

                      THE SPRINT SUBSIDIARIES NAMED HEREIN

                                       AND

                               GLOBAL SIGNAL INC.
















                          DATED AS OF FEBRUARY 14, 2005









                                              TABLE OF CONTENTS

                                                                                                

                                                                                                      Page


ARTICLE 1 DEFINITIONS....................................................................................2


ARTICLE 2 CONTRIBUTION, CONVEYANCE/GRANT OF LEASEHOLD, SUBLEASEHOLD OR OTHER INTEREST AND CONSIDERATION.16

SECTION 2.1           Contribution, Conveyance/Grant of Leasehold, Subleasehold or Other Interest.......16

SECTION 2.2           Items Excluded from Contribution, Conveyance/Grant of Leasehold,
                      Subleasehold or Other Interest....................................................17

SECTION 2.3           Consideration.....................................................................17

SECTION 2.4           AS IS, WHERE IS...................................................................18

SECTION 2.5           Closing Place and Dates...........................................................18

SECTION 2.6           Initial Closing...................................................................19

SECTION 2.7           Technical Closings; Contributions to Lessor.......................................21

SECTION 2.8           Site Designation Supplements......................................................22

SECTION 2.9           Prorating of Expenses.............................................................23

SECTION 2.10          Deposits..........................................................................23

SECTION 2.11          Re-Recordation....................................................................23


ARTICLE 3 PRE-CLOSING PROCEDURES FOR SITES..............................................................24

SECTION 3.1           Contributable Sites; Master Lease Sites...........................................24

SECTION 3.2           Certain Procedures with respect to Identifying and Curing Exceptions..............24

SECTION 3.3           Shared Sites; Contributors' Cure Rights...........................................26

SECTION 3.4           Certain Procedures with respect to Shared Ground Lease Payments...................27

SECTION 3.5           Arbitration.......................................................................28

SECTION 3.6           Special Zoning Sites..............................................................28

SECTION 3.7           Casualty Sites....................................................................29

SECTION 3.8           Recordation of Documents; Signage.................................................30

SECTION 3.9           Allocation of Rent and Pre-Lease Rent; Multiple Lease Agreements..................30


                                                       i




ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF CONTRIBUTORS AND SPRINT.....................................32

SECTION 4.1           Organization......................................................................32

SECTION 4.2           Authority; No Conflicts...........................................................32

SECTION 4.3           Real Property.....................................................................33

SECTION 4.4           Title; Ownership and Related Matters..............................................34

SECTION 4.5           Material Agreements...............................................................34

SECTION 4.6           Litigation; Orders................................................................35

SECTION 4.7           Environmental Matters.............................................................35

SECTION 4.8           Brokers, Finders, Etc.............................................................36

SECTION 4.9           Financial Statements..............................................................36

SECTION 4.10          Per Tower Data....................................................................37

SECTION 4.11          Compliance with Laws and Governmental Authorizations..............................38

SECTION 4.12          No Implied Representations........................................................38


ARTICLE 5 REPRESENTATIONS AND WARRANTIES OF LESSEE......................................................38

SECTION 5.1           Incorporation.....................................................................38

SECTION 5.2           Authority.........................................................................39

SECTION 5.3           No Conflicts......................................................................39

SECTION 5.4           Approvals, Other Authorizations, Consents, Reports, Etc...........................39

SECTION 5.5           Litigation; Orders................................................................40

SECTION 5.6           Brokers, Finders, Etc.............................................................40

SECTION 5.7           SEC Reports.......................................................................40

SECTION 5.8           Financial Statements..............................................................40

SECTION 5.9           Independent Review................................................................41

SECTION 5.10          Financial Capability..............................................................42


ARTICLE 6 COVENANTS OF SPRINT, CONTRIBUTORS AND LESSEE..................................................42

SECTION 6.1           Investigation of Sites Prior to Initial Closing; Access to Properties and
                      Records...........................................................................42

SECTION 6.2           Efforts to Close; Cooperation.....................................................44

SECTION 6.3           Further Assurances................................................................45

SECTION 6.4           Conduct of Collocation Business and the Sites.....................................46

SECTION 6.5           Public Announcements..............................................................47

SECTION 6.6           Corporate Names...................................................................47



                                                       ii





SECTION 6.7           Actions by Lessee, Sprint and Contributors Subsidiaries...........................48

SECTION 6.8           Environmental Matters.............................................................48

SECTION 6.9           Title Insurance Commitments.......................................................49

SECTION 6.10          Other Documentation...............................................................49

SECTION 6.11          Master Collocation Agreements.....................................................50

SECTION 6.12          Confidentiality...................................................................50

SECTION 6.13          Lessee's Efforts..................................................................52

SECTION 6.14          Employee Matters..................................................................53

SECTION 6.15          2004 Audited Financials; Unaudited Stub Period Financials.........................55

SECTION 6.16          Exclusivity; Return of Confidential Information...................................56

SECTION 6.17          Notices of Certain Events.........................................................56

SECTION 6.18          Sprint and its Affiliates' Rights.................................................56


ARTICLE 7 CONDITIONS TO LESSEE'S OBLIGATION TO CLOSE....................................................57

SECTION 7.1           Representations, Warranties and Covenants of Contributors and Sprint..............57

SECTION 7.2           HSR Filings.......................................................................57

SECTION 7.3           No Injunction or Proceedings......................................................57

SECTION 7.4           Collateral Agreements and Additional Closing Deliveries...........................58

SECTION 7.5           Contributable Sites and Master Lease Sites........................................59

SECTION 7.6           Individual Site Closing Conditions................................................59


ARTICLE 8 CONDITIONS TO CONTRIBUTORS', SPRINT'S AND LESSOR'S OBLIGATIONS TO CLOSE.......................59

SECTION 8.1           Representations, Warranties and Covenants of Lessee...............................60

SECTION 8.2           HSR Filings.......................................................................60

SECTION 8.3           No Injunction or Proceedings......................................................60

SECTION 8.4           Collateral Agreements.............................................................60


ARTICLE 9 SURVIVAL; INDEMNIFICATION.....................................................................61

SECTION 9.1           Indemnification Obligations of Contributors and Sprint............................61

SECTION 9.2           Indemnification Obligations of Lessee.............................................62

SECTION 9.3           Indemnification Procedure for Third Party Claims..................................63

SECTION 9.4           Indemnity Period..................................................................64

SECTION 9.5           Liability Limits..................................................................65



                                                       iii





SECTION 9.6           Exclusive Remedies................................................................65

SECTION 9.7           Netting of Losses.................................................................66


ARTICLE 10 TERMINATION..................................................................................66

SECTION 10.1          Termination of Agreement..........................................................66

SECTION 10.2          Effect of Termination.............................................................67

ARTICLE 11 MISCELLANEOUS................................................................................68

SECTION 11.1          Counterparts......................................................................68

SECTION 11.2          Governing Law.....................................................................68

SECTION 11.3          Entire Agreement..................................................................68

SECTION 11.4          Fees and Expenses.................................................................68

SECTION 11.5          Notices...........................................................................68

SECTION 11.6          Assignment; Successors and Assigns; Third-Party Beneficiaries.....................70

SECTION 11.7          Headings; Definitions.............................................................70

SECTION 11.8          Amendment; Modification...........................................................71

SECTION 11.9          Time of Essence...................................................................71

SECTION 11.10         Specific Performance..............................................................71

SECTION 11.11         Mutual Drafting...................................................................71

SECTION 11.12         Limitation of Liability...........................................................71

SECTION 11.13         Disclosures.......................................................................71

SECTION 11.14         Jurisdiction and Consent to Service...............................................72

SECTION 11.15         Waiver of Jury Trial..............................................................72




                                                        iv








Schedules

Schedule 1        Included Equipment
Schedule 2        Excluded Equipment
Schedule 3        Qwest Sites

Exhibits

Exhibit A         Schedule of Owned Sites
Exhibit B         Schedule of Leased Sites and Other Interest Sites
Exhibit C         Form of LLC Agreement
Exhibit C-1       Form of Separateness Agreement
Exhibit D         Form of Lease and Sublease Agreement
Exhibit D-1       Rent and Pre-Lease Rent Allocation Principles
Exhibit D-2       Option Purchase Price Allocation Principles
Exhibit E         Form of Property Use Agreement
Exhibit F         Material Terms of Transition Services Agreement
Exhibit G         Individual Site Closing Conditions
Exhibit H         Form of Lessee General Assignment and Assumption Agreement
Exhibit I         Form of LLC General Assignment and Assumption Agreement
Exhibit J         Form of Ground Lessor Estoppel
Exhibit K         Form of Non-Disturbance Agreement





                   AGREEMENT TO CONTRIBUTE, LEASE AND SUBLEASE


     AGREEMENT TO CONTRIBUTE, LEASE AND SUBLEASE (this "Agreement"), dated as of
February 14, 2005, among GLOBAL SIGNAL INC., a Delaware corporation  ("Lessee"),
SPRINT  CORPORATION,  a Kansas corporation  ("Sprint"),  and the Subsidiaries of
Sprint  named on the  signature  pages  to this  Agreement  (such  Subsidiaries,
collectively, "Contributors").

     WHEREAS,   Contributors  operate  throughout  the  United  States  and  its
territories  the  Sites,   which  include  Towers  and  related   Equipment  and
Contributors either own, lease or otherwise occupy or use the tracts,  pieces or
parcels of land or structures  on or in which such Towers are located,  all such
Sites as of September 30, 2004 being described in the attached Exhibit A ("Owned
Sites") and Exhibit B (which  includes both "Leased  Sites" and "Other  Interest
Sites");

     WHEREAS,  Lessee  desires to Lease the  Leased  Property  of the Sites,  or
otherwise  operate  the  Sites,  on the terms and  conditions  set forth in this
Agreement,  including  the  assumption of certain  obligations  under the Ground
Leases with respect to the Leased Sites Land and Other  Interest  Sites Land and
certain other related liabilities;

     WHEREAS,  as a condition to, and simultaneously  with, the Initial Closing,
Contributors will enter into one or more Limited  Liability Company  Agreements,
substantially in the form attached as Exhibit C (individually  and collectively,
the "LLC Agreement"), for each newly-formed special purpose entity (individually
and  collectively,  "Lessor") to be formed and operated pursuant to the terms of
this Agreement and the LLC Agreement;

     WHEREAS,  as a condition to, and simultaneously  with, the Initial Closing,
Contributors will contribute to Lessor all of their respective  interests in the
Leased  Property of the Sites  (including  (a) an assignment  by the  applicable
Contributors  of their  leasehold or other  interests in the Ground  Leases with
respect to the Leased Sites Land and the Other  Interest Sites Land, and (b) the
transfer by the applicable  Contributors  of their  interests in the Owned Sites
Land); provided, that with respect to the Non-Contributable Sites,  Contributors
will not assign or transfer to Lessor the Ground  Lease and related  Collocation
Agreements  unless all consents  required for  assignment  or transfer have been
obtained;

     WHEREAS,  as a condition to, and simultaneously  with, the Initial Closing,
Contributors,  Lessor and Lessee will enter into Lease and  Sublease  Agreements
(individually and collectively,  the "Lease Agreement"),  in accordance with the
provisions of Section  3.9(b),  substantially  in the form attached as Exhibit D
(as  modified  by Section  3.9(b)),  pursuant to which (a) Lessor will Lease the
Leased  Property of the Master Lease Sites to Lessee,  (b) certain  Contributors
will sublease back from Lessee the Sprint Collocation Space, and (c) Lessee will
operate for and on behalf of Lessor the Pre-Lease  Sites (until such time as the
Pre-Lease Sites will have become Master Lease Sites thereunder);





     WHEREAS,  as a condition to, and simultaneously  with, the Initial Closing,
Contributors  and  Lessor  will  enter  into the  Property  Use  Agreement  (the
"Property  Use  Agreement"),  substantially  in the form  attached as Exhibit E,
pursuant to which  Contributors  will grant to Lessor as of the Initial  Closing
Date,  the right to operate the Leased Sites Land or Other  Interest Sites Land,
as applicable, and administer the related Collocation Agreements with respect to
each Non-Contributable Site; and

     WHEREAS,  as a condition to, and simultaneously  with, the Initial Closing,
Contributors,  Lessor  and  Lessee  will  enter  into  the  Transition  Services
Agreement,  on mutually  acceptable  terms and  conditions  with  respect to the
services described on Exhibit F (the "Transition Services Agreement"),  pursuant
to which  Contributors,  Lessor  and Lessee  will  provide  each  other  certain
transition services for an interim period following the Initial Closing.

     NOW THEREFORE,  in consideration of the foregoing and the  representations,
warranties,  and  agreements  contained in this  Agreement,  and intending to be
legally bound by this Agreement, the parties agree as follows:

                                   ARTICLE 1

                                   DEFINITIONS

     As used in this  Agreement,  the  following  terms will have the  following
respective meanings:

     "AAA" has the meaning set forth in Section 3.5.

     "Accountants" has the meaning set forth in Section 6.1(d).

     "Additional  Deposit"  means an additional  deposit in the amount of Twelve
Million Five Hundred Thousand Dollars ($12,500,000).

     "Affiliate"  (and, with a correlative  meaning,  "Affiliated")  means, with
respect to any Person, any other Person that directly, or indirectly through one
or more  intermediaries  controls,  is controlled by, or is under common control
with, such Person.  As used in this  definition,  "control" means the beneficial
ownership  (as such term is defined in Rules  13d-3 and 13d-5 of the  Securities
Exchange Act of 1934, as amended) of more than fifty percent (50%) of the voting
interests of the Person.

     "Agreement"  has the meaning set forth in the  preamble,  and will include,
except where the context otherwise  requires,  all of the attached Schedules and
Exhibits.

     "Antitrust Laws" means the HSR Act or any other  antitrust,  competition or
trade regulatory Laws.

     "Assumed  Liabilities" means all Liabilities arising during the term of the
Lease Agreement related to, or arising in connection with the operation,  use or
occupancy  of, any Master Lease Site or  Pre-Lease  Site  thereunder,  including
fifty  percent  (50%) of any Shared  Ground  Lease  Payments,  but  specifically
excluding all Excluded Liabilities.



                                       2





Without  limiting the  generality of the  foregoing,  Assumed  Liabilities  will
include,  without limitation,  all Liabilities (other than Excluded Liabilities)
of Contributors, Lessor or any of their respective Affiliates arising during the
term of the Lease Agreement under or related to each  Collocation  Agreement (or
in the case of Master  Collocation  Agreements  bifurcated  pursuant  to Section
6.11, the portion of the Master Collocation Agreement assigned to Lessee). It is
understood and agreed that, as of the Initial Closing Date, pursuant and subject
to  the  Lease  Agreement,   the  obligations  of  Contributors  or  Lessor,  as
applicable,  under the Ground  Leases will be performed by Lessee in  accordance
with the terms of the Ground Leases and/or  related  agreements  with respect to
the Leased  Sites Land and the Other  Interest  Sites Land,  including,  without
limitation,  except as set forth  herein or in the Lease  Agreement,  the direct
payment of ground  rent and other  charges  thereunder  accrued on and after the
Initial Closing Date, but excluding the Contributors',  Lessor's,  or any Sprint
Collocator's  fifty  percent  (50%) share of any Shared  Ground  Lease  Payments
(which is an Excluded Liability).

     "Auction" has the meaning set forth in Section 6.16(a).

     "Authorization" means, with respect to each Site, each consent, approval or
waiver from, or a notice to or filing with, any Person or Governmental Authority
required in order to consummate the transactions contemplated by this Agreement,
including, if applicable,  a consent,  approval or waiver from the Ground Lessor
under the applicable Ground Lease.

     "Available Space" has the meaning set forth in the Lease Agreement.

     "Casualty  Site" means a Site with respect to which a Force  Majeure  event
occurs prior to the Initial Closing Date for the applicable Site, which event or
occurrence renders the Tower on such Site unusable as a communications  tower or
that otherwise materially impairs the value of such Site.

     "Closing"  means the Initial  Closing,  a  Conversion  Closing or Technical
Closing.

     "Closing Date" means the date on which a Closing occurs.

     "Code" means the United States Internal Revenue Code of 1986, as amended.

     "Collateral  Agreements"  means  the  Lease  Agreement,  the  Property  Use
Agreement,  the Transition Services  Agreement,  and, if entered into, any other
agreements,  certificates  and  documents  entered into in  connection  with the
transactions contemplated by this Agreement and the other Collateral Agreements.

     "Collocation  Agreement" means an agreement pursuant to which a Contributor
or Lessor rents to a third party space at any Site (including space on a Tower),
including all amendments,  modifications,  supplements, assignments, guaranties,
and side letters related thereto.

     "Collocation  Business" means the business of Contributors of (a) marketing
available  capacity at any Site to wireless  communications  services  providers
(including Contributors and their respective Affiliates),  (b) administering the
Collocation


                                       3




Agreements and Master Collocation  Agreements with such wireless  communications
services  providers,  and (c) managing the use and occupancy of such capacity by
Contributors and their respective Affiliates.

     "Communications  Equipment"  means,  as to any  Site,  transmitting  and/or
receiving  equipment  and other  equipment  installed at the Sprint  Collocation
Space or any Available Space or any other portion of the Site (with respect to a
Tower  Subtenant),  which is used in providing  current and future  wireless and
wireline  communication  services,   including  without  limitation,   switches,
antennas,  microwave dishes,  panels,  conduits,  flexible  transmission  lines,
cables,  radio,  amplifiers,  filters and other  transmission or  communications
equipment  (including  interconnect   transmission  equipment,   transmitter(s),
receiver(s) and accessories) and such other equipment and associated software as
may be necessary in order to provide  such  wireless and wireline  communication
services,  including without limitation, voice or data. Communications Equipment
will include any existing, replaced and upgraded Communications Equipment.

     "Competing Transaction" has the meaning set forth in Section 6.16(a).

     "Confidential Information" has the meaning set forth in Section 6.12(b).

     "Confidentiality  Agreement" means the Confidentiality  Agreement, dated as
of July 21, 2004, as amended, by and between Sprint and an Affiliate of Lessee.

     "Contributable Site" has the meaning set forth in Section 3.1(a).

     "Contribution  Exception"  means, with respect to a Site, any Authorization
that must be satisfied or fulfilled in order for the  applicable  Contributor to
contribute the Leased Property and the related Collocation  Agreements and Tower
Related Assets of such Site to Lessor.

     "Contributors" has the meaning set forth in the preamble.

     "Contributors  Benefit Plans" means any "employee benefit plan" (as defined
in Section 3(3) of ERISA) maintained by Contributors or their Affiliates for the
benefit of the  employees of the  Collocation  Business and each other  employee
benefit,  bonus or fringe  benefit  plan  maintained  by  Contributors  or their
Affiliates for the benefit of the employees of the Collocation Business.

     "Contributors Deductible" has the meaning set forth in Section 9.5(b).

     "Contributors  Disclosure  Letter" means the disclosure letter delivered by
Contributors  to Lessee  simultaneously  with the execution and delivery of this
Agreement,  as supplemented or amended by Contributors pursuant to the terms and
conditions of this Agreement.

     "Contributors  Indemnified Parties" means Contributors,  Lessor, Sprint and
the other Affiliates of Contributors and Lessor, and their respective directors,
officers, employees, agents and representatives.


                                       4




     "Conversion Closing" has the meaning set forth in Section 2.5(b).

     "Conversion  Closing Date" means, with respect to each Conversion  Closing,
the date on which such Conversion Closing occurs.

     "Corrective Assignment" has the meaning set forth in Section 2.6(a).

     "De Minimis Claim" has the meaning set forth in Section 9.5(a).

     "Deposit"  means the initial deposit in the amount of Fifty Million Dollars
($50,000,000) together with any Additional Deposit(s) made by Lessee pursuant to
Section 10.1(c).

     "Disclosee" has the meaning set forth in Section 6.12(a).

     "Disclosing Party" has the meaning set forth in Section 6.12(a).

     "Environmental Conditions" means, with respect to any Site, that Lessee has
commissioned and obtained:  (i) a clean Phase 0 environmental  report; or (ii) a
Phase I environmental  report that recommends no further action is required,  or
(iii) a Phase II environmental  report that either  recommends no further action
or is otherwise acceptable to Lessee.

     "Environmental Law" means all federal, state and local Laws relating to the
protection of surface or ground water,  drinking water supply,  soil, surface or
subsurface  strata or medium or ambient  air,  pollution  control and  Hazardous
Substances. Zoning Laws (including any rules or regulations promulgated pursuant
to any Zoning Law relating to the (a) placement,  construction  and modification
of  communications  towers  as  applied  through  Zoning  Laws or (b)  aesthetic
character of a communications tower) are not Environmental Laws.

     "Environmental  Permits" means all material Governmental Approvals required
for the operation of a Site under applicable Environmental Law.

     "Equipment"  means  all  physical  assets  (other  than real  property  and
interests in real property) located at the applicable Site on or in, or attached
to, Owned Sites Land, Leased Sites Land, Other Interest Sites Land, Improvements
or Towers Leased to, or operated by, Lessee pursuant to the Lease Agreement, and
includes,  without  limitation,  all  of the  items  described  on the  attached
Schedule 1. With respect to any item of or interest in real property included in
the Leased  Property of any Site,  any fixture  (other than Towers)  attached to
that real property is "Equipment" related thereto.  "Equipment" does not include
any intellectual property or intangible rights or Excluded Equipment.

     "ERISA"  means the Employee  Retirement  Income  Security  Act of 1974,  as
amended.

     "Escrow Agent" means Bank of America,  N.A., or any successor  escrow agent
under the Escrow Agreement.


                                       5




     "Escrow   Agreement"   means  that  certain   Escrow   Agreement   executed
concurrently   herewith  between  Bank  of  America,   N.A.,  as  escrow  agent,
Contributors,  Sprint and Lessee, as the same may hereafter be amended, modified
or supplemented by the parties thereto pursuant to its terms.

     "Exception" means a Contribution Exception and/or Leasing Exception.

     "Excluded Assets" means the following:

     (a) all Excluded Equipment, Excluded Sites and Strategic Sites;

     (b) any of Contributors' or Lessor's right,  title or interest in or to the
Owned Sites Land (other than any leasehold or other  interest in the Owned Sites
Land granted to Lessee under the Lease Agreement);

     (c) any of Contributors' or Lessor's right,  title or interest in or to the
Leased  Sites Land (other  than any  leasehold  or other  interest in the Leased
Sites Land granted to Lessee under the Lease Agreement);

     (d) any of Contributors' or Lessor's right,  title or interest in or to the
Other Interest Sites Land (other than any leasehold or other interests or rights
in the Other  Interest  Sites Land  granted to or  otherwise  made  available to
Lessee under the Lease Agreement);

     (e) any and all  licenses  granted  by the  FCC to  Contributors  or  their
respective Affiliates;

     (f) any receivables of Contributors,  Lessor or their respective Affiliates
under any Collocation  Agreement accrued for periods ending prior to the Initial
Closing Date;

     (g) any intellectual  property of Contributors,  Lessor or their respective
Affiliates;

     (h) any condemnation or eminent domain proceeds  received after the date of
this  Agreement  with respect to a taking of any Owned Sites Land,  Leased Sites
Land or Other Interest Sites Land that are Excluded Sites or Strategic Sites;

     (i) the Qwest  Asset  Purchase  Agreement  and any  rights of  Contributors
thereunder; and

     (j) any cash, cash  equivalents or marketable  securities and all rights to
any bank accounts of Contributors, Lessor or their respective Affiliates.

     "Excluded  Equipment"  means (a)  Contributors',  Lessor's  or any of their
respective  Affiliates'  right, title or interest in or to any Equipment located
at any Site  that is used or held for use by  Contributors  or  Lessor as of the
Initial  Closing  Date in  connection  with its use and  occupancy of the Sprint
Collocation   Space  pursuant  to  the  Lease  Agreement   (including,   without
limitation, Communications Equipment of Contributors, Lessor or their respective
Affiliates located on any Tower and any


                                       6



Equipment which supports such Communications Equipment located on land or on any
Tower or in any building that is part of any Improvements),  except for any such
Equipment actively used by Contributors,  Lessor or such Affiliates  exclusively
in  connection  with the  operation  or  maintenance  of the Towers  (and not in
connection  with any  Contributor's,  Lessor's or their  respective  Affiliates'
other  businesses  or as  support  for  any  Contributor's,  Lessor's  or  their
respective  Affiliates'  actively used Communications  Equipment on the Towers),
(b)  any  Equipment   belonging  to  third  parties,   including  tenants  under
Collocation  Agreements,  or  relating to  Contributors'  tariff  services,  (c)
Contributors',  Lessor's and their respective Affiliates' antennas,  generators,
wireless  and  wireline  cable runs and  equipment  shelters  that  contain only
Contributors' or Lessor's  Equipment and, (d) all of the Equipment  described on
the attached Schedule 2.

     "Excluded Liabilities" means all Liabilities of Contributors, Lessor or any
of their  respective  Affiliates  (a) to their  employees  in their  capacity as
employers or related to any  Contributors  Benefit Plan, (b) related to Excluded
Assets, (c) related to, or arising in connection with the ownership,  operation,
use or occupancy prior to the Initial Closing Date of any Site (d) fifty percent
(50%)  of  any  Shared  Ground  Lease  Payments,  or  (e)  which  are  "Excluded
Liabilities" pursuant to Section 3.3(b)(ii)(4)(A).

         "Excluded Site" has the meaning set forth in Section 3.3(b)(i).

         "FCC" means the United States Federal Communications Commission, or any
successor Governmental Authority.

         "Final Closing Date" has the meaning set forth in Section 2.7(e).

         "Financeable Site" has the meaning set forth in the Lease Agreement.

         "Financial Statements" has the meaning set forth in Section 4.9(a).

         "Financing Commitments" has the meaning set forth in Section 5.10.

         "FIRPTA Certificate" has the meaning set forth in Section 7.4(c)(i).

         "First Milestone Date" has the meaning set forth in Section 10.1(c).

         "Force Majeure" means any occurrence, nonoccurrence or set of
circumstances that is beyond the reasonable control of Contributors, including,
without limitation, condemnation or other taking, flood, ice, earthquake,
tornado, hurricane, windstorm or eruption, fire, explosion, invasion, civil war,
domestic or foreign terrorist act, commotion or insurrection, sabotage or
vandalism, military or usurped power, or act of God or of a public enemy or
foreclosure, deed-in-lieu of foreclosure, or similar proceeding with respect to
a Ground Lessor Lien; provided, that, after the Initial Closing, Lessee is not
in monetary default under the Lease Agreement.

         "GAAP" means generally accepted accounting principles in the United
States, consistently applied.


                                       7





         "Governmental Antitrust Authority" means the Antitrust Division of the
United States Department of Justice, the United States Federal Trade Commission
and any State attorney general, or any successor thereto.

     "Governmental   Approvals"   means  all  licenses,   permits,   franchises,
certifications,   waivers,  variances,   registrations,   consents,   approvals,
qualifications  and  other  authorizations  to,  from or with  any  Governmental
Authority.

     "Governmental Authority" means any foreign, domestic, federal, territorial,
state or local governmental authority,  administrative body,  quasi-governmental
authority,  instrumentality,  court, government or self-regulatory organization,
commission,  board,  administrative hearing body, arbitration panel, tribunal or
organization or any regulatory, administrative or other agency, or any political
or other subdivision, department or branch of any of the foregoing.

     "Ground  Lease"  means,  as to a Leased Site or Other  Interest  Site,  the
ground lease and/or any related easement,  license or other agreement,  pursuant
to which a Contributor or Lessor holds a leasehold  interest,  leasehold estate,
easement,  license or other real property  interest  including  all  amendments,
modifications,  supplements,  assignments,  guarantees, and side letters related
thereto.

     "Ground  Lessor"  means,  as to a Leased Site or Other  Interest  Site, the
"lessor",  "landlord",  "licensor",  or similar  Person under the related Ground
Lease.

     "Ground Lessor  Estoppel" means, as to a Ground Lease, an estoppel from the
Ground Lessor  thereunder for the benefit of Lessee,  its successor and assigns,
lenders and rating  agencies,  in  substantially  the form of Exhibit J attached
hereto.

     "Ground Lessor Lien" means, with respect to any asset, any mortgage,  lien,
guaranty,  pledge,  security  interest,   charge,  attachment,   restriction  or
encumbrance  of any kind in  respect  of the  interest  of a Ground  Lessor in a
Leased Site or Other Interest Site and that exists prior to the Initial  Closing
Date.

     "Ground Lessor Mortgage" means any mortgage,  deed of trust or similar Lien
on the  interest  of a Ground  Lessor  that is  superior  to the  interest  of a
Contributor in a Leased Site or Other Interest Site and that exists prior to the
Initial Closing Date.

     "GSI  Financing  Subsidiary"  means  any  Person  formed by or on behalf of
Lessee to act as the "Lessee" under the Lease  Agreement or under any "Severable
Lease" (as defined in the Lease Agreement).

     "Hazardous Substance" means any waste,  pollutant,  contaminant,  hazardous
substance,  toxic  or  corrosive  substance,  hazardous  waste,  special  waste,
industrial  substance,   by-product,   process-intermediate  product  or  waste,
petroleum or petroleum-derived  substance or waste,  chemical liquids or solids,
liquid or gaseous  products,  or any constituent of any such substance or waste,
the use,  handling or disposal of which is governed by or subject to  applicable
Environmental Law.



                                       8





     "HSR Act" means the Hart-Scott-Rodino  Antitrust  Improvements Act of 1976,
as amended, and the rules and regulations promulgated thereunder.

     "Improvements" has the meaning set forth in the Lease Agreement.

     "Indemnified  Party"  means a  Contributors  Indemnified  Party or a Lessee
Indemnified Party, as the case may be.

     "Indemnifying Party" has the meaning set forth in Section 9.3(a).

     "Indemnity   Period"   means   the   period   during   which  a  claim  for
indemnification may be asserted pursuant to Article 9 by an Indemnified Party.

     "Individual  Site Closing  Conditions"  means the  conditions  set forth on
Exhibit G.

     "Initial Closing" has the meaning set forth in Section 2.5(a).

     "Initial Closing Date" means the date on which the Initial Closing occurs.

     "Initial Closing Shared Ground Lease Payment" means any Shared Ground Lease
Payment  that is payable to a Ground  Lessor  and that is  quantified  by Lessee
pursuant to this Agreement on or prior to the Initial Closing Date.

     "Insurable Sites" has the meaning set forth in Section 6.9.

     "Interim Balance Sheet Date" has the meaning set forth in Section 4.9(a).

     "Last Milestone Date" has the meaning set forth in Section 10.1(c).

     "Law" means any statute, rule, code, regulation,  ordinance or Order of, or
issued by, any Governmental Authority.

     "Lease" or  "Leased"  means the act of  leasing,  subleasing  or  otherwise
granting  to Lessee by Lessor  the right to use the  Leased  Property  of a Site
pursuant to the Lease Agreement.

     "Lease Agreement" has the meaning set forth in the preamble.

     "Leased Property" means with respect to each Site (a) the Owned Sites Land,
Leased Sites Land or Other  Interest  Sites Land (as the case may be) related to
such Site, (b) the Tower located on such Site (including the Sprint  Collocation
Space,  which the parties  specifically  acknowledge and agree will be Leased by
Lessor to Lessee and  subleased  back (with  respect to Master  Lease  Sites) or
otherwise made available by Lessee to Lessor and  Contributors  (with respect to
Pre-Lease Sites) pursuant to the Lease Agreement),  in each case,  together with
the related  Equipment,  Improvements  (excluding the  Improvements of any Tower
Subtenant  and  Sprint's  Improvements)  and (c) the Tower  Related  Assets with
respect to such Site, excluding in each instance,  the assets,  rights and other
interests set forth in Section 2.2.

     "Leased Sites" has the meaning set forth in the preamble.


                                       9




     "Leased  Sites Land" means the tracts,  pieces or parcels of land leased by
Contributors or Lessor on which Towers are located,  together with all easements
and other rights appurtenant thereto.

     "Leasing  Exception"  means any  Authorization  that must be  satisfied  or
fulfilled  in order for  Lessor to Lease the  Leased  Property  and  assign  the
Collocation Agreements and Related Tower Assets of a Site to Lessee.

     "Legal Action" means, with respect to any Person, any and all litigation or
legal  or  other   pending   actions,   arbitrations,   claims,   counterclaims,
investigations,  proceedings (including  condemnation  proceedings) or suits, at
Law or in  arbitration,  equity or  admiralty,  whether or not  purported  to be
brought on behalf of such Person,  affecting such Person or any of such Person's
business, property or assets.

     "Lessee" has the meaning set forth in the preamble  and, will also include,
as the context requires, any GSI Financing Subsidiary to whom Lessee assigns all
or a portion of its rights or interests  hereunder or under the Lease Agreement;
it being contemplated and agreed that a GSI Financing  Subsidiary and not Global
Signal Inc. will enter into the Lease Agreement at the Initial Closing,  however
the obligations hereunder,  including indemnification  obligations,  will remain
the  obligations  of Global  Signal Inc. and will not be assumed by any such GSI
Financing Subsidiary.

     "Lessee Deductible" has the meaning set forth in Section 9.5(a).

     "Lessee  Disclosure Letter" means the disclosure letter delivered by Lessee
to Contributors simultaneously with the execution and delivery of this Agreement
as  supplemented  or amended by Lessee  pursuant to the terms and  conditions of
this Agreement.

     "Lessee Financial Statements" has the meaning set forth in Section 5.8(a).

     "Lessee  General  Assignment  and  Assumption  Agreement"  means a  General
Assignment  and  Assumption  Agreement  substantially  in the form  attached  as
Exhibit H.

     "Lessee  Indemnified  Parties" means Lessee, any GSI Financing  Subsidiary,
and  their  respective  Affiliates  and  its  and  their  respective  directors,
officers, employees, agents and representatives.

     "Lessee  Interim  Balance  Sheet Date" has the meaning set forth in Section
5.8(a).

     "Lessee  Material  Adverse  Effect" means a material  adverse effect on the
assets,  operations  or condition  (financial or otherwise) of Lessee taken as a
whole; provided,  that for purposes of this Agreement, a Lessee Material Adverse
Effect will not include changes to the assets, operations or condition of Lessee
resulting from (a) changes to the wireless  communications industry or the tower
ownership, operation, leasing, management and construction business not uniquely
related  to Lessee,  (b) the  announcement  or  disclosure  of the  transactions
contemplated by this Agreement,  (c) general  economic,  regulatory or political
conditions,  (d) military action or any act of terrorism, or (e) compliance with
the terms of this Agreement.


                                       10



     "Lessee Pension Plan" has the meaning set forth in Section 6.14(c)(ii).

     "Lessee 401(k) Plan" has the meaning set forth in Section 6.14(b)(ii).

     "Lessor" has the meaning set forth in the preamble.

     "Liabilities"  means,  with  respect  to any  Person,  any  and  all  debts
(including interest thereon and any prepayment  penalties  applicable  thereto),
damages, liabilities, claims, demands and obligations, whether fixed, contingent
or absolute,  matured or unmatured,  liquidated or unliquidated,  accrued or not
accrued,  known or unknown,  whenever  or however  arising  (including,  without
limitation,  whether  arising out of any contract or tort based on negligence or
strict  liability)  and  whether or not the same would be required by GAAP to be
reflected in financial statements or disclosed in the notes thereto.

     "Lien"  means,  with respect to any asset,  any mortgage,  lien,  guaranty,
pledge, security interest, charge, attachment, restriction or encumbrance of any
kind in respect of such asset.

     "LLC Agreement" has the meaning set forth in the preamble.

     "LLC  General   Assignment  and  Assumption   Agreement"  means  a  General
Assignment  and  Assumption  Agreement  substantially  in the form  attached  as
Exhibit I.

     "Loss" has the meaning set forth in Section 9.1(a).

     "Master Collocation Agreement" has the meaning set forth in Section 6.11.

     "Master Lease Site" has the meaning set forth in Section 3.1(b).

     "Master Services Agreement" means the Master Services  Agreement,  dated as
of December 31, 2004, by and between Sprint Spectrum L.P. and  Sitemaster,  Inc.
with respect to the maintenance of the Sites, other than the Qwest Sites.

     "Material  Adverse  Effect" means a material  adverse effect on the assets,
operations or condition  (financial or otherwise) of the Leased  Property of all
the Sites (other than the Excluded Sites and Strategic  Sites) taken as a whole;
provided,  that for purposes of this Agreement,  a Material  Adverse Effect will
not  include  changes  to the  assets,  operations  or  condition  of the Leased
Property of all the Sites (other than the Excluded  Sites and  Strategic  Sites)
taken as a whole  resulting  from (a)  changes  to the  wireless  communications
industry or the tower  ownership,  operation,  leasing and  management  business
generally,  (b) the announcement or disclosure of the transactions  contemplated
by this Agreement, (c) general economic, regulatory or political conditions, (d)
military  action or any act of terrorism,  (e) changes in Law, or (f) compliance
with the terms of this Agreement.

     "Material Agreement" means each of the Master Services Agreement, the Qwest
Option Agreement,  and any Ground Lease or Collocation  Agreement,  including in
each


                                       11



case all amendments,  modifications,  supplements, assignments, guaranties, side
letters and other documents related thereto.

     "Milestone Dates" means the First Milestone Date, the Second Milestone Date
and the Last Milestone Date.

     "Names" means, collectively, all names, marks, trade names and trademarks.

     "Non-Contributable Site" means any Site that is not a Contributable Site.

     "Non-Disturbance  Agreement" means, as to a Ground Lease for a Site that is
subject to a Ground Lessor Mortgage, a non-disturbance agreement from the lender
with  respect to such  Ground  Lessor  Mortgage,  in  substantially  the form of
Exhibit K attached hereto.

     "Notice of Dispute" has the meaning set forth in Section 3.5.

     "Order" means an administrative, judicial, or regulatory injunction, order,
decree,  judgment,  sanction,  award or writ of any  nature of any  Governmental
Authority of competent jurisdiction.

     "Option  Purchase  Price  Allocation   Principles"   means  the  allocation
principles set forth on Exhibit D-2.

     "Other Interest Sites" has the meaning set forth in the preamble.

     "Other  Interest  Sites Land"  means the tracts,  pieces or parcels of land
occupied or used by  Contributors  or Lessor  pursuant  to a license,  easement,
permit or similar  arrangement,  on which Towers are located,  together with all
easements and other rights appurtenant thereto.

     "Owned Sites" has the meaning set forth in the preamble.

     "Owned  Sites  Land"  means  the  tracts,  pieces  or  parcels  of land (as
described in Exhibit A) of Owned Sites on which Towers are located.

     "Permitted  Encumbrances"  means,  collectively,  (a) liens in  respect  of
Property Taxes or similar  assessments,  governmental charges or levies that (i)
relate solely to the interests of a Ground Lessor and are not, in the aggregate,
in  excess of $10  million,  or (ii) are not yet due and  payable;  (b) liens of
landlords',   laborers',  shippers',  carriers',   warehousemen's,   mechanics',
materialmen's,  repairmen's and other like Liens imposed by law, (i) that relate
solely to the interests of a Ground Lessor and are not in excess of $15,000,  or
(ii) arising in the ordinary  course of business and securing  obligations  that
are not yet  due and  payable,  (c) any  easements,  rights  of  public  utility
companies,   rights-of-way,   covenants,   conditions,  licenses,  restrictions,
reservations  of mineral  rights (with  surface  rights being waived) or similar
non-monetary  encumbrances  that  do not  impair  the  use or  operation  of the
applicable Site as a communications tower facility, including the rental of such
Site to Tower Subtenants,  (d) rights of tenants in possession of the applicable
Site pursuant to Collocation Agreements, (e) Ground Lessor Mortgages, and (f)


                                       12




other  matters filed in the public real estate  records which do not  materially
impair, in Lessee's reasonable discretion,  the use or operation of such Site as
a  communication  tower  facility,  including  the  rental of such Site to Tower
Subtenants.

     "Person" means any  individual,  corporation,  limited  liability  company,
partnership, association, trust or any other entity or organization, including a
Governmental Authority.

     "Pre-Lease Rent" has the meaning set forth in the Lease Agreement.

     "Pre-Lease Site" has the meaning set forth in Section 2.6(d).

     "Property Taxes" means all real property Taxes, personal property Taxes and
similar ad valorem Taxes.

     "Property Use Agreement" has the meaning set forth in the preamble.

     "Qwest Asset Purchase Agreement" means the Asset Purchase Agreement,  dated
as of March 26, 2004, by and between Sprint  Spectrum,  L.P. and Qwest Wireless,
LLC.

     "Qwest Option Agreement" means the Option Agreement,  dated as of March 26,
2004, by and between Sprint Spectrum, L.P. and Qwest Wireless, LLC.

     "Qwest Sites" means the Owned Sites,  Leased Sites and Other Interest Sites
listed  on  Schedule  3  acquired  by  Contributors  from  Qwest  Communications
International, Inc. and its Affiliates.

     "Recordation Notice" has the meaning set forth in Section 3.8(a).

     "Rent" has the meaning set forth in the Lease Agreement.

     "Rent and  Pre-Lease  Rent  Allocation  Principles"  means  the  allocation
principles set forth on Exhibit D-1.

     "Representatives" has the meaning set forth in Section 6.12(a).

     "Required Financial Statements" has the meaning set forth in Section
6.1(d).

     "Retirement Pension Plan" has the meaning set forth in Section 6.14(c)(i).

     "Retirement Savings Plan" has the meaning set forth in Section 6.14(b)(i).

     "SEC Documents" has the meaning set forth in Section 5.7.

     "Second Milestone Date" has the meaning set forth in Section 10.1(c).

     "Separateness  Agreement" means an agreement in  substantially  the form of
Exhibit C-1 attached hereto.


                                       13




     "Shared Ground Lease Payment" means any amounts payable, from time to time,
to any Ground  Lessor,  whether as revenue  sharing under any Ground  Lease,  as
percentage rent, as an additional lump sum payment or otherwise, as a result of,
or otherwise triggered by: (i) the contribution,  Lease or grant of right to use
the Leased Property as contemplated  hereunder,  including the payment to Lessor
(or the receipt by a Contributor  or any other  Affiliate of Lessor) of the Rent
or the  Pre-Lease  Rent,  or (ii) the payment by the Sprint  Collocators  of the
Sprint  Collocation  Charge, or (iii) the fact that Contributors and Lessee have
agreed to share any other  Shared  Ground  Lease  Payment  with  respect  to the
payment of the Pre-Lease  Rent,  Rent and Sprint  Collocation  Charge on a 50/50
basis (i.e., a 'gross-up' payment).

     "Shared  Site" means a Site  (other  than an  Excluded  Site or a Strategic
Site) where the applicable  Contributor's  interest therein is shared, as to any
real property  interest,  with another party who is not a Contributor  and whose
interest will not be Leased to Lessee pursuant to the Lease Agreement.

     "Site  Designation  Supplement"  has the  meaning  set  forth in the  Lease
Agreement.

     "Sites"  means the Owned  Sites,  the Leased  Sites and the Other  Interest
Sites.

     "Special  Zoning Site" means a Site (a) that received a zoning  variance or
exemption  which  permits  its  current  use  as  a  result  of  the  applicable
Contributor's  status as a public utility or common carrier, (b) would lose such
variance or exemption  if the Leased  Property of such Site were to be Leased to
Lessee in the manner contemplated by this Agreement, and (c) would not lose such
variance  or  exemption  if the Leased  Property  of such Site were  retained by
Contributors  and  managed by Lessee in  accordance  with the terms of the Lease
Agreement.

     "Sprint" has the meaning set forth in the preamble.

     "Sprint  Collocation  Space"  has  the  meaning  set  forth  in  the  Lease
Agreement.

     "Sprint Collocators'" has the meaning set forth in the Lease Agreement.

     "Sprint  Confidentiality  Agreement" means the  Confidentiality  Agreement,
dated as of February 3, 2005, by and between Sprint and Lessee.

     "Sprint's Improvements" has the meaning set forth in the Lease Agreement.

     "Strategic  Site" means those Sites  which  Contributors  have,  by written
notice to Lessee delivered as promptly as practicable following the date of this
Agreement, but in no event shall do so later than the earlier to occur of (x) 90
days  after the date of this  Agreement,  and (y) at least ten days prior to the
Initial Closing,  elected to retain and exclude altogether from the transactions
contemplated  by this Agreement  because the primary  importance of such Site to
Contributors  relates  to a quality  of such Site  other than its use as a tower
upon which  communications  antennas  are placed;  provided,  that the number of
Strategic Sites will not exceed fifty (50) in the aggregate.


                                       14




     "Subsidiary"  of a Person means any  corporation  or other Person more than
50% of whose  outstanding  voting  securities  or  other  equity  interests  are
directly or indirectly owned by the first Person.

     "Tax" means all forms of  taxation,  whenever  created or imposed,  whether
imposed by a local,  municipal,  state,  foreign,  Federal or other Governmental
Authority,   and  whether  imposed  directly  by  a  Governmental  Authority  or
indirectly through any other Person, and, without limiting the generality of the
foregoing,  will  include  any  income,  gross  receipts,  ad  valorem,  excise,
value-added,  sales,  use,  transfer,  franchise,  license,  stamp,  occupation,
withholding,  employment,  payroll, property or environmental tax, levy, charge,
assessment, fee or premium, together with any interest, penalty, addition to tax
or additional amount imposed by a Governmental Authority.

     "Tax  Return"  means  any  return,  report,  statement,  schedule  or other
document required to be filed with any Taxing Authority.

     "Taxing  Authority"  means  any  Governmental   Authority   exercising  any
authority to impose, regulate or administer the imposition of Taxes.

     "Technical Closing" has the meaning set forth in Section 2.5(b).

     "Technical Closing Date" means, as to each Technical  Closing,  the date on
which such Technical Closing occurs.

     "Term" has the meaning set forth in the Lease Agreement.

     "Title Commitments" has the meaning set forth in Section 6.9.

     "Title  Company" means one or more national title  insurance  companies (or
agents thereof) designated by Lessee.

     "Title Policies" has the meaning set forth in Section 6.9.

     "to  Contributors'  knowledge" or "to the knowledge of Contributors"  means
all facts actually known, after reasonable inquiry of appropriate employees,  by
any of those  individuals set forth in Section 2 of the Contributors  Disclosure
Letter.

     "to Lessee's  knowledge"  or "to the  knowledge of Lessee"  means all facts
actually known,  after reasonable  inquiry of appropriate  employees,  by any of
those individuals set forth in Section 1 of the Lessee Disclosure Letter.

     "Tower  Liability"  means a condition  resulting  in (a) a Loss at a single
Site of more than  $250,000,  or (b)  Losses  at one or more  Sites of more than
$5,000,000.

     "Tower Related Assets" means, with respect to each Tower, (a) to the extent
such rights are  assignable,  all rights to any warranties  held by Contributors
with respect to such Tower (or the related Site),  (b) to the extent such rights
are assignable,  all rights under any  Governmental  Approvals held  exclusively
with  respect to the  ownership  or  operation of such Tower (and of the related
Site if such Site is an Owned Site), and that


                                       15




are not used by  Contributors  in any part of their  respective  businesses  and
operations  other than the Collocation  Business,  (c) to the extent such rights
are assignable,  a sublicense or other right to use any  Governmental  Approvals
not held  exclusively  with respect to, but held in part for the benefit of, the
ownership or operation of such Tower (and of the related Site if such Site is an
Owned Site),  and (d) copies of, or extracts from, all current files and records
of  Contributors  and  Lessor  solely  related to the  ownership,  construction,
occupancy,  leasing or subleasing of such Tower (and of the related Site if such
Site is an Owned  Site),  or, to the extent not so solely  related,  appropriate
extracts  thereof.  "Tower  Related  Assets"  does not include any  intellectual
property or intangible rights or Excluded Assets.

     "Tower Removal Bonds" means,  collectively,  any bonds,  letters of credit,
deposits or other security  interests  relating to the removal of a Tower from a
Site.

     "Tower  Subtenant"  means,  as to  any  Site,  any  Person  (other  than  a
Contributor or Lessor), which: (a) subleases, licenses or otherwise accepts from
a Contributor under any Collocation  Agreement affecting such Site (prior to the
Initial  Closing);  or (b) subleases,  licenses or otherwise accepts from Lessee
the  right to use  Available  Space at such Site  (from  and  after the  Initial
Closing).

     "Towers"  means  the  communications  towers on the  Sites  located  at the
property identified on the attached Exhibit A and Exhibit B.

     "Transferred Employee" has the meaning set forth in Section 6.14(a).

     "Transition Services Agreement" has the meaning set forth in the preamble.

     "Zoning  Laws"  means any  zoning,  land use or  similar  Laws,  including,
without  limitation,  Laws  relating to the use or  occupancy  of any  property,
building codes, development orders, zoning ordinances and land use regulations.

     "2004 Financial Statements" has the meaning set forth in Section 6.15.


                                   ARTICLE 2

                  CONTRIBUTION, CONVEYANCE/GRANT OF LEASEHOLD,
                SUBLEASEHOLD OR OTHER INTEREST AND CONSIDERATION

     SECTION 2.1 Contribution,  Conveyance/Grant  of Leasehold,  Subleasehold or
Other Interest.

     Subject to and upon the terms and conditions set forth in this Agreement:

     (a) on or prior to the Initial Closing Date, Contributors will form Lessor,
and Contributors will enter into the LLC Agreement;

     (b) at the Initial Closing,  Contributors will contribute,  convey, assign,
transfer  and  deliver  to  Lessor  all of the  right,  title  and  interest  of
Contributors  in and to the Leased  Property of the Sites  (including the Master
Lease Sites) and the related


                                       16




Collocation Agreements,  Tower Related Assets and Tower Removal Bonds; provided,
that with respect to any Non-Contributable Site, Contributors will not assign or
transfer to Lessor the Ground Lease and related Collocation Agreements;

     (c)  at the  Initial  Closing,  pursuant  to the  Property  Use  Agreement,
Contributors  will grant to Lessor the right to use and operate the Leased Sites
Land or Other  Interest  Sites Land, as  applicable,  and administer the related
Collocation Agreements, for each Non-Contributable Site;

     (d) at the Initial Closing,  pursuant to the Lease Agreement and the Lessee
General  Assignment and  Assumption  Agreement,  as applicable,  Lessor will (i)
Lease to  Lessee  the  Leased  Property  of the  Master  Lease  Sites,  and (ii)
transfer,  assign and set over to Lessee all  Collocation  Agreements  and Tower
Related Assets and all Assumed  Liabilities  relating to the Master Lease Sites;
and (iii)  grant to Lessee the right to operate  for and on behalf of Lessor the
Pre-Lease  Sites,  and all  Collocation  Agreements  and  Tower  Related  Assets
relating  to the  Pre-Lease  Sites;  and  (iv)  assign  to  Lessee  all  Assumed
Liabilities with respect to the Pre-Lease Sites;

     (e) at the Initial Closing,  pursuant to the Lease  Agreement,  Lessee will
lease or  otherwise  make  available  the  Sprint  Collocation  Space to certain
Contributors designated by Sprint for each Master Lease Site and Pre-Lease Site;
and

     (f) until the Final Closing Date, (i)  Contributors  will use  commercially
reasonable  efforts  to  contribute  to Lessor the  Ground  Leases  and  related
Collocation  Agreements for all  Non-Contributable  Sites, (ii) the parties will
cooperate and use commercially  reasonable  efforts, as provided in Section 3.2,
to cause all Pre-Lease Sites to become Master Lease Sites and otherwise  satisfy
the Individual  Site Closing  Conditions  and (iii) at each  Technical  Closing,
Lessor will assign to Lessee the Collocation  Agreements for each Pre-Lease Site
that has been  converted  into a Master Lease Site since the  previous  Closing;
provided,  that such  assignment  will be deemed  effective as of the applicable
Conversion Closing Date for each such Site.

     SECTION  2.2  Items  Excluded  from   Contribution,   Conveyance/Grant   of
Leasehold, Subleasehold or Other Interest.

     Notwithstanding  anything to the  contrary  contained  in Section  2.1, the
Leased  Property of the Sites will not include any of the  following  and Lessee
will not lease or assume:  (a) the  Excluded  Assets;  (b) any and all rights or
obligations that accrue or will accrue to Contributors or Lessor or any of their
respective   Affiliates  under  this  Agreement  or  any  Collateral  Agreement,
including,  without  limitation,  the  payments  due to  Lessor  under the Lease
Agreement;  (c) any and all rights or obligations  retained by and/or granted to
Contributors or Lessor or any of their  respective  Affiliates  pursuant to this
Agreement or any Collateral Agreement;  (d) any Governmental  Approvals relating
to the Excluded Equipment;  (e) the Strategic Sites; (f) the Excluded Sites, (g)
any Tower Removal Bonds and (h) the Excluded Liabilities.

     SECTION 2.3 Consideration.


                                       17




     The  aggregate  consideration  payable by Lessee to Lessor for the Lease of
the Leased  Property of the Master Lease Sites under this  Agreement will be the
applicable  Rent and other  obligations  to be paid and performed by Lessee with
respect to the Master  Lease  Sites  under the Lease  Agreement,  including  the
assumption  of the Assumed  Liabilities  with respect to the Master Lease Sites.
The  aggregate  consideration  payable  by  Lessee  to  Lessor  for the  current
operation and eventual Lease of the Leased  Property of the Pre-Lease Sites will
be the Pre-Lease  Rent and other  obligations to be paid and performed by Lessee
with respect to the  Pre-Lease  Sites under the Lease  Agreement,  including the
assumption of the Assumed  Liabilities  with respect to the Pre-Lease  Sites. In
the event  that any Site  becomes  an  Excluded  Site or a  Strategic  Site,  as
provided in this Agreement, the aggregate consideration payable by Lessee at the
Initial  Closing will be reduced by the Rent or the Pre-Lease  Rent allocated to
such Site as set forth on Exhibit H to the Lease Agreement  pursuant to the Rent
and Pre-Lease Rent Allocation Principles as set forth on Exhibit D-1.

     SECTION 2.4 AS IS, WHERE IS.

     EXCEPT AS OTHERWISE  EXPRESSLY SET FORTH IN THIS  AGREEMENT,  (A) IT IS THE
EXPLICIT  INTENT OF EACH PARTY THAT THE  LEASED  PROPERTY  OF THE SITES IS BEING
CONTRIBUTED  BY  CONTRIBUTORS,  LEASED BY LESSOR AND  ACCEPTED BY LESSEE "AS IS,
WHERE  IS," WITH ALL  FAULTS,  AND THAT NO  CONTRIBUTOR  OR LESSOR IS MAKING ANY
REPRESENTATION  OR WARRANTY  WHATSOEVER,  EXPRESS OR  IMPLIED,  OTHER THAN THOSE
EXPRESSLY  GIVEN IN THIS  AGREEMENT  (WHICH WILL  SURVIVE ONLY TO THE EXTENT SET
FORTH IN SECTION  9.4 OF THIS  AGREEMENT),  INCLUDING,  BUT NOT  LIMITED TO, ANY
IMPLIED WARRANTY OR REPRESENTATION AS TO THE VALUE,  CONDITION,  MERCHANTABILITY
OR  SUITABILITY  AS TO ANY OF THE  PROPERTIES  OR ASSETS  COMPRISING  THE LEASED
PROPERTY OF THE SITES (OR THE  COLLOCATION  AGREEMENTS)  AND (B) PURSUANT TO THE
LEASE AGREEMENT AND OTHER COLLATERAL AGREEMENTS, LESSEE WILL ASSUME AND AGREE TO
PAY,  HONOR AND DISCHARGE  WHEN DUE IN  ACCORDANCE  WITH THEIR TERMS ANY AND ALL
ASSUMED LIABILITIES. NOTWITHSTANDING ANYTHING CONTAINED IN THIS AGREEMENT TO THE
CONTRARY,  NO REPRESENTATION OR WARRANTY CONTAINED IN THIS AGREEMENT IS INTENDED
TO,  OR  DOES,  COVER  OR  OTHERWISE  PERTAIN  TO  ANY  EXCLUDED  ASSETS  OR ANY
LIABILITIES THAT ARE NOT INCLUDED IN THE ASSUMED LIABILITIES.

     SECTION 2.5 Closing Place and Dates.



                                       18





     (a) The  Leasing of the Leased  Property  of the Master  Lease  Sites,  the
granting of the right to operate the  Pre-Lease  Sites,  the  assignment  of the
related  Collocation  Agreements  and Tower Related Assets and the assumption of
the Assumed  Liabilities  will take place at a closing (the  "Initial  Closing")
which will take place within ten (10) business days  following the date that the
applicable  conditions set forth in Articles 7 and 8 have been duly satisfied or
waived.  The Initial Closing will be held at the offices of King & Spalding LLP,
1185 Avenue of the Americas,  New York, New York, or such other place upon which
the parties may agree.

     (b) The conversion of (i) a Non-Contributable  Site to a Contributable Site
and/or (ii) a Pre-Lease Site into a Master Lease Site  subsequent to the Initial
Closing Date will occur automatically upon the cure of all of the Exceptions and
the satisfaction (or waiver by Lessee) of the Individual Site Closing Conditions
with respect to each Pre-Lease  Site,  (each a "Conversion  Closing").  From the
Initial  Closing  Date  until  the  Final  Closing  Date,  Lessee  will  use its
commercially  reasonable efforts to provide Lessor, no less frequently than once
every two (2) weeks,  written  notice of the  Conversion  Closings that occurred
during the period since the prior  notice.  In addition,  as provided in Section
2.7, the parties will hold a closing (each a "Technical Closing") to confirm the
occurrence   of  a  Conversion   Closing   with   respect  to  each   applicable
Non-Contributable Site or Pre-Lease Site, as the case may be.

     (c) At each Technical Closing, Lessor will assign to Lessee the Collocation
Agreements  and  Tower  Related  Assets  for each  Pre-Lease  Site that has been
converted into a Master Lease Site since the previous Closing;  provided,  that,
in each case,  such  assignment  will be deemed  effective as of the  applicable
Conversion Closing Date for such Site.

     SECTION 2.6 Initial Closing.

     At the Initial Closing:

     (a) Contributors will contribute,  convey, assign,  transfer and deliver to
Lessor all of the right, title and interest in and to the Leased Property of the
Sites (including the Master Lease Sites) and the related Collocation  Agreements
and Tower Related Assets (provided,  that with respect to each Non-Contributable
Site,  Contributors  will not assign or transfer to Lessor the Ground  Lease and
related  Collocation  Agreements  and  Tower  Related  Assets  (except  for  the
applicable portion of any Master Collocation  Agreement  bifurcated  pursuant to
Section 6.11) unless all consents  required for such assignment or transfer have
been obtained) by delivery of each of the  following,  each duly executed by the
applicable  Contributor(s)  and  Lessor:  (i) the LLC  Agreement,  (ii)  the LLC
General Assignment and Assumption Agreement; and (iii) such other instruments of
assignment  as may be necessary  for  Contributors  to  contribute to Lessor the
Leased Property (and all intermediate assignments from the original lessee under
a Ground Lease to the Contributor  that currently holds such Ground Lease,  that
have  not  been  recorded  [the  "Corrective   Assignments"])  and  the  related
Collocation  Agreements and Tower Related Assets of the Sites,  in each case, in
form and  substance  reasonably  acceptable  to the parties and, with respect to
assignments of Ground Leases and Corrective Assignments,  in form sufficient for
recordation. The Contributors shall provide Lessee, (x) promptly


                                       19





following the date hereof,  with all information and documentation  necessary to
prepare  the  Corrective  Assignments,   and,  (y)  promptly  following  request
therefor,  information  reasonably  requested with respect to the assignments of
Ground  Leases.  Lessee  shall  prepare  the  assignments  of Ground  Leases and
Corrective  Assignments  and  Lessor  shall  have such  documents  executed  and
notarized;

     (b)  Contributors  will  grant to  Lessor,  pursuant  to the  Property  Use
Agreement,  the right to operate the Leased Sites Land or Other  Interest  Sites
Land, as applicable,  and to administer the related  Collocation  Agreements and
Tower  Related  Assets  (including,   if  applicable,   any  Master  Collocation
Agreements bifurcated pursuant to Section 6.11) for each Non-Contributable Site;

     (c) With  respect to the Master  Lease  Sites to be Leased to Lessee at the
Initial  Closing,  Lessor  will (i) Lease to Lessee the Leased  Property of such
Master Lease Sites by execution and delivery of the Lease  Agreement  (including
Site Designation Supplements to the Lease Agreement),  and (ii) transfer, assign
and set over to Lessee all Collocation Agreements (including, if applicable, any
Master  Collocation  Agreements  bifurcated  pursuant to Section 6.11) and Tower
Related Assets and all Assumed Liabilities relating to the Master Lease Sites by
execution  and  delivery  of  the  Lessee  General   Assignment  and  Assumption
Agreement,  in each case,  in form and  substance  reasonably  acceptable to the
parties;

     (d)  Sprint  Collocators,  Lessor  and  Lessee  will  enter  into the Lease
Agreement  with  respect to all Sites (other than  Strategic  Sites and Excluded
Sites)  then  subject  to  unsatisfied  or  addressed  Leasing  Exceptions  (the
"Pre-Lease Sites") and Lessee will have the right to operate the Pre-Lease Sites
and to administer the related Collocation Agreements (including,  if applicable,
any Master Collocation  Agreements bifurcated pursuant to Section 6.11) for each
Pre-Lease Site as set forth in the Lease Agreement;

     (e) Subject to the adjustments and prorations  described in Section 2.3 and
Section  2.9,  Lessee will  deliver to Lessor (i) the Rent with  respect to each
Master Lease Site,  and (ii) the Pre-Lease  Rent with respect to each  Pre-Lease
Site (less the Deposit  and  earnings  thereon),  in each case,  in  immediately
available funds by wire transfer to an account  designated by  Contributors  (on
behalf of Lessor) by written notice to Lessee delivered not later than three (3)
business days prior to the Initial Closing Date;

     (f) At the Initial Closing, each Contributor, or Lessor, as applicable will
pay (or cause to be paid) its  applicable  share of any Initial  Closing  Shared
Ground Lease Payments;

     (g)  Pursuant and subject to the Lease  Agreement,  Lessee will assume from
Lessor the due payment,  performance  and  discharge of all Assumed  Liabilities
relating to, or arising in connection  with the operation,  use or occupancy of,
the Leased  Property of the Master Lease Sites and Pre-Lease  Sites, by delivery
of the  following,  each  duly  executed  by  Lessee:  (i) the  Lease  Agreement
(including Site Designation Supplements to the Lease Agreement); (ii) the Lessee
General Assignment and Assumption Agreement; and (iii) such other instruments of
assumption as may be necessary to cause Lessee to


                                       20





assume the Assumed  Liabilities  relating to such Sites  included in the Initial
Closing,  in each  case,  in form and  substance  reasonably  acceptable  to the
parties;

     (h)  Pursuant  and  subject to the Lease  Agreement,  Lessee  will lease or
otherwise make available the Sprint  Collocation  Space to certain  Contributors
designated  by Sprint for each Master  Lease Site and  Pre-Lease  Site,  and the
aggregate  number  of  Master  Lease  Sites so leased  and  Pre-Leased  Sites so
occupied by such  Contributors  shall, in the aggregate,  not be less than 6,409
(less  any  Excluded  Sites or  Strategic  Sites),  and  Exhibit  A to the Lease
Agreement  shall  reflect  same  and  the  initial   aggregate   monthly  Sprint
Collocation Charge for such Sites shall be not less than $8,972,600 (less $1,400
per month for each  Excluded  Site and  Strategic  Site  listed as occupied by a
Contributor in Section  4.10(a)(ii) of the Contributors  Disclosure  Letter) and
such  charge,  for the month in which the  Initial  Closing  occurs (or  ratable
portion  thereof) shall be prepaid by such  Contributors at the Initial Closing;
and

     (i) Contributors, Lessor and Lessee will deliver the certificates and other
contracts,  documents and instruments  required to be delivered under Articles 7
and 8, including, without limitation, the Collateral Agreements.

     SECTION 2.7 Technical Closings; Contributions to Lessor.

     (a) The  parties  will  hold a  Technical  Closing  when the  parties  have
determined  pursuant  to Section  3.2(d)  that there are at least 500 new Master
Lease Sites since the prior Technical Closing (or since the Initial Closing,  if
a Technical  Closing has not occurred).  The Technical  Closings will be on such
dates as the parties mutually agree;  provided,  that the effective Closing Date
for each Site that is  converted  from a Pre-Lease  Site to a Master  Lease Site
will be the  Conversion  Closing Date for such Site. If there are fewer than 500
Pre-Lease  Sites in the  aggregate  for which a  Conversion  Closing,  but not a
Technical  Closing,  has occurred as of the Final Closing  Date,  then the final
Technical Closing will occur on the Final Closing Date and include such Sites.

     (b) At each Technical Closing, Contributors, Lessor and Lessee will deliver
amended  schedules  and/or  exhibits to the following:  (i) the Lease  Agreement
(including Site Designation Supplements to the Lease Agreement); (ii) the Lessee
General  Assignment  and  Assumption  Agreement;   and  (iii)  the  LLC  General
Assignment and Assumption Agreement.

     (c) Contributors,  Lessor and Lessee also will deliver the certificates and
other  contracts,  documents  and  instruments  required to be  delivered  under
Articles 7 and 8.

     (d) In addition,  following the Initial  Closing Date, with respect to each
Non-Contributable  Site  existing  as of the  Initial  Closing,  as  promptly as
practicable  following the earlier of (x) Contributors'  acknowledgment that the
Contribution  Exceptions  with  respect  to such  Site have  been  corrected  or
addressed  pursuant  to Section  3.2 or  Section  3.3 or (y) the  expiration  of
Contributors'   notice  period  in  the  second   sentence  of  Section  3.2(d),
Contributors will contribute, convey, assign, transfer and deliver to Lessor all
of the right, title and interest of Contributors in and to the Ground Leases and
related  Collocation  Agreements and Tower Related Assets by delivery of: (i) an
LLC General


                                       21




Assignment  and  Assumption  Agreement,  and  (ii)  such  other  instruments  of
assignment  as may be necessary  for  Contributors  to  contribute to Lessor the
Leased Property and the related Ground Leases,  Collocation Agreements and Tower
Related Assets with respect to the applicable  Sites,  in each case, in form and
substance reasonably acceptable to the parties.

     (e) Any  party  may,  on at  least  ten (10)  business  days  notice  to be
effective on any day (the "Final  Closing Date") after the date that is eighteen
(18) months  after the date of this  Agreement,  terminate  the  obligations  of
Lessee,  Lessor  and  Contributors  under  this  Agreement  to use  commercially
reasonable efforts to cause any remaining  Pre-Lease Site (including any Special
Zoning Site) to be converted to a Master Lease Site under this Agreement and the
Lease Agreement;  provided that the terminating party did not cause the delay in
conversion with respect to such Site(s).  From and after the Final Closing Date,
Lessee may, in its discretion, continue any efforts, from time to time, to cause
the conversion of any or all remaining Pre-Lease Sites to Master Lease Sites and
Contributors  and Lessor will provide Lessee with such reasonable  assistance as
may be  reasonably  requested by Lessee from time to time with respect  thereto,
including,  without  limitation,  further Technical Closings with respect to any
further  conversions,  provided the reasonable  out-of-pocket  costs of the same
will be at Lessee's expense.

     SECTION 2.8 Site Designation Supplements.

     (a) Prior to the Initial Closing Date,  Contributors  will assist Lessee in
collecting  the data relating to the  applicable  Master Lease Sites,  such that
Lessee may  adequately  describe such Master Lease Sites  (including  the Sprint
Collocation Space) and prepare the appropriate exhibits for all Site Designation
Supplements  relating to such Master  Lease  Sites.  The parties  will use their
respective  commercially  reasonable  efforts to permit  Lessee to prepare  such
exhibits for all Site Designation Supplements. Lessee will deliver such exhibits
for all Site  Designation  Supplements  to  Sprint.  Sprint,  on  behalf  of the
applicable  Contributors,  will review and  comment as  promptly as  practicable
following  delivery  thereof  with  consideration  to the  number  of such  Site
Designation Supplements delivered at any given time.

     (b) Following the Initial Closing Date, and prior to each Technical Closing
Date,  Lessee  will  collect the data  relating to the Master  Lease Sites to be
included in such Technical Closing,  adequately describe such Master Lease Sites
(including the Sprint  Collocation  Space) and prepare the appropriate  exhibits
for all Site Designation Supplements relating to such Master Lease Sites. Lessee
will deliver such exhibits for all Site  Designation  Supplements to Lessor and,
if applicable,  Sprint on behalf of the  Contributors.  Sprint, on behalf of the
applicable  Contributors,  may  review and  comment on the same  within ten (10)
business days after delivery thereof.

     (c) Where any discrepancy in the appropriate exhibits requires verification
in the field the parties  will  provide  adequate  resources  and  personnel  to
resolve such discrepancy  within ninety (90) days after the Initial Closing Date
or Technical Closing Date, as applicable.


                                       22




     (d)  If in  the  review  of  any  Site  Designation  Supplement  any  party
identifies any corrections that in such party's reasonable judgment  necessitate
further  revisions to such Site Designation  Supplement,  the parties may at any
party's request effect the correction of such Site Designation  Supplement,  and
defer the recordation of such Site  Designation  Supplement until such revisions
are made, for up to ninety (90) days following such request.

     (e) In  addition,  the  parties  will  have the  right to  review  and make
corrections,  if  necessary,  to any and all  exhibits  to the Site  Designation
Supplements  after the applicable  Closing.  After making any such  corrections,
Lessee will  re-record  any such Site  Designation  Supplements  to reflect such
corrections, if requested by Contributors or Lessor or if elected by Lessee.

     SECTION 2.9 Prorating of Expenses.

     Except as  otherwise  provided  in the Lease  Agreement,  as of the Initial
Closing  Date,  prorations  of  expenses  relating  to the  use,  occupancy  and
operation  of the  Master  Lease  Sites and  Pre-Lease  Sites will be made on an
accrual basis, with Contributors obligated for any payments, and entitled to any
receivables,  accrued prior to the Initial Closing Date and Lessee obligated for
any payments, and entitled to any receivables,  accrued on and subsequent to the
Initial Closing Date. The net amount of the prorations set forth in this Section
2.9 will be credited to (or debited from) to the Rent and Pre-Lease Rent payable
by Lessee at the Initial  Closing and the parties will use good faith efforts to
finalize  and settle any other  amounts due under this  Section 2.9 within sixty
(60) days following the Initial Closing Date.

     SECTION 2.10 Deposits.

     On the date of this  Agreement,  Lessee will  deliver to  Contributors  the
initial  Deposit by wire transfer of  immediately  available  funds to an escrow
account  held by Escrow  Agent  pursuant  to the  Escrow  Agreement.  Additional
Deposits may be delivered  to Escrow  Agent as provided in Section  10.1(c).  As
provided in the Escrow Agreement,  the Deposit will be invested in insured money
market accounts,  certificates of deposit,  United States Treasury Bills or such
other  instruments  as Lessee may  instruct  from time to time.  At the  Initial
Closing, the Deposit, together with all earnings thereon, will be paid to Lessor
(or  Contributors  on behalf of Lessor) and applied to the aggregate Rent and/or
Pre-Lease Rent.

     SECTION 2.11 Re-Recordation.

     Whenever in this Agreement any party is required or has the right to record
or re-record any document,  including  without  limitation any Site  Designation
Supplement,  Ground Lease or a memorandum of Ground  Lease,  such party will, or
will  cause the  agent  effecting  such  recordation  to,  deliver a copy of the
document to the other party  promptly  after receipt of such notice,  and in any
event  contemporaneously with its first delivery of such notice to the recording
party.


                                       23




                                   ARTICLE 3

                        PRE-CLOSING PROCEDURES FOR SITES

     SECTION 3.1 Contributable Sites; Master Lease Sites.

     (a) If (i) there are no  Contribution  Exceptions  with  respect  to a Site
(other  than  any  Excluded  Site  or  Strategic  Site),  or  (ii)  all  of  the
Contribution  Exceptions with respect to a Site have been corrected or addressed
pursuant to Section 3.2 or Section 3.3,  then,  except as otherwise  provided in
this  Article  3,  such Site will  thereafter  be deemed to be a  "Contributable
Site."

     (b) With respect to each  Contributable  Site,  if (i) there are no Leasing
Exceptions with respect to such Site, or (ii) all of the Leasing Exceptions with
respect to such Site have been corrected or addressed pursuant to Section 3.2 or
Section 3.3,  then,  except as  otherwise  provided in this Article 3, such Site
will thereafter be deemed to be a "Master Lease Site."

     SECTION 3.2  Certain  Procedures  with  respect to  Identifying  and Curing
Exceptions.

     (a) As promptly as practicable following the date of this Agreement, Lessee
will seek to identify  all  Exceptions  with respect to each Site and any Shared
Sites and to notify Sprint on behalf of Contributors  thereof.  Contributors and
Sprint (and,  following the Initial Closing,  Lessor) will be actively  involved
and  cooperate  with Lessee in all material  aspects of such efforts to identify
all  Exceptions  and Shared Sites and will provide to Lessee in electronic  form
(or if requested by Lessee, hard copy) a list of Ground Lessor names and current
addresses,  a December 31, 2004 rent roll,  and any other  information  in their
possession  with respect to the Sites that is reasonably  requested by Lessee in
connection with its review and analysis of the Sites and  identification  of the
related Exceptions.  In the event that the parties do not agree in good faith as
to whether (or not) one or more Exceptions  exist,  they will work in good faith
to resolve such dispute as soon as  practicable  and, if such dispute  cannot be
resolved any party may elect to proceed to  arbitration  as described in Section
3.5.

     (b) Lessee will use commercially  reasonable  efforts to correct or address
any  Exception  identified  pursuant to Section  3.2(a),  including by obtaining
Ground  Lessor  Estoppels  with respect to the Leased  Sites and Other  Interest
Sites,  but  without  obligation  to pay any costs,  expenses or fees in respect
thereof or related  thereto;  provided,  however,  that (i) Lessee will promptly
notify  Contributors  in the event  that any such  costs,  expenses  or fees are
requested or required and provide  Contributors  and, after the Initial  Closing
Date, Lessor, the opportunity, in their sole discretion, to fund such costs, and
(ii) each party will promptly  notify others in the event that any Ground Lessor
makes a claim or demand for a Shared Ground Lease Payment.  It is understood and
agreed that Lessee may contact Ground Lessors, Tower Subtenants and/or any other
Person in connection  with the  transactions  contemplated  by this Agreement in
order  to  identify  and  cure  Exceptions  including  obtaining  Ground  Lessor
Estoppels, whether in person or by


                                       24




telephone,  mail  or  other  means  of  communication,   and  Contributors  (for
themselves  and,  after the  Initial  Closing,  Lessor)  hereby  authorize  such
contacts.

     (c) Sprint,  on behalf of Contributors and, after the Initial Closing Date,
Lessor, will use commercially  reasonable efforts and will cooperate with Lessee
in all  efforts of Lessee to obtain  Ground  Lessor  Estoppels  and to cause any
Exception to be cured, in each case, as promptly as practicable;  provided that,
none of Sprint,  Contributors  or Lessor will have any  obligation to correct or
address any Exception (other than by using the commercially  reasonable  efforts
described  herein).  It is understood  and agreed that in order to facilitate an
organized process of addressing Exceptions,  Contributors, Sprint and, after the
Initial Closing, Lessor, will not, except at Lessee's request,  initiate contact
with Ground Lessors in order to address  Exceptions or relating to Ground Lessor
Estoppels and will agree upon talking  points with Lessee for  situations  where
such parties initiate contact with Contributors, Sprint or Lessor.

     (d) Upon cure of any Exceptions with respect to a Site, Lessee will provide
written  notice  to Sprint on behalf  of  Contributors  and,  after the  Initial
Closing Date, Lessor,  identifying the Site together with related Exceptions and
a brief statement  regarding how such Exceptions were cured. If Contributors or,
after the Initial Closing Date,  Lessor,  do not object within ten (10) business
days of receipt of such notice to the  assertion by Lessee that such  Exceptions
have been cured and (i) if such  Exceptions  included all required  Contribution
Exceptions,  and without any further action being required by the parties,  such
Site will  automatically  convert into a  Contributable  Site,  and (ii) if such
Exceptions  included all required  Leasing  Exceptions and the  Individual  Site
Closing  Conditions have been satisfied or waived with respect to such Site, and
without  any  further  action  being  required  by the  parties,  such Site will
automatically  convert into a Master Lease Site. All disputes over the method of
cure with respect to an Exception  will be resolved by  arbitration as described
in Section  3.5, it being agreed that the burden of proof will fall on Lessee to
show  that  the  Exception  has been  adequately  cured  by the  method  of cure
indicated in Lessee's notice.

     (e) Lessee will provide to Sprint, on behalf of Contributors and, after the
Initial  Closing Date,  Lessor,  written  information in reasonable  detail on a
weekly  basis  with  respect to the  actions  taken by Lessee  pursuant  to this
Section  3.2 and any  actions,  waivers,  consents or  documents  that Lessee is
requesting from Contributors and Lessor with respect to the Exceptions.

     (f) Following the date hereof until the Initial  Closing Date,  Sprint,  on
behalf of  Contributors  and, after the Initial Closing Date,  Lessor,  will (i)
provide at its cost at least one  employee  to act as the  primary  contact  for
Lessee (and another  employee if such primary employee contact is unavailable to
assist Lessee) and to provide such employee  sufficient  resources and authority
to assist Lessee in connection with the  identification and curing of Exceptions
in a timely manner and (ii) will respond as soon as practicable but in any event
within five (5) business days, with respect to any actions, waivers, consents or
documents that Lessee  requests from  Contributors or Lessor with respect to the
identification and curing of Exceptions,  including in connection with obtaining
Ground Lessor Estoppels and Non-Disturbance Agreements.


                                       25





     (g) Each party will be responsible for all out-of-pocket costs and expenses
incurred by such party in connection with  identifying and curing  Exceptions as
described above.

     (h) Nothing  contained  herein  will be  construed  to prevent  Lessee from
seeking estoppels from Ground Lessors containing terms or provisions  additional
or varied to those in the Ground  Lessor  Estoppel,  however no such  additional
terms will alter the form of Ground  Lessor  Estoppel for purposes of satisfying
the requirements for Ground Lessor Estoppels under the definition of Financeable
Site or Section 7.5 hereof.

     SECTION 3.3 Shared Sites; Contributors' Cure Rights.

     (a)  Contributors  will use  commercially  reasonable  efforts to cause any
Shared Site to be bifurcated but without  obligation to pay any costs,  expenses
or fees in respect thereof or related thereto;  provided,  however, that if such
Shared  Site is not  bifurcated  prior to the Initial  Closing  Date in a manner
reasonably  satisfactory  to Lessee,  such Shared Site will be an Excluded  Site
hereunder.

     (b) With respect to each Site  subject to an Exception  not cured or waived
pursuant to Section 3.2 above,  Contributors may, in their sole discretion,  but
only upon written  request of Lessee,  elect any of the  following  options with
respect to any such Exception:

          (i) Excluded Site. Contributors may elect, by written notice to Lessee
     given at any  time  within  ten (10)  business  days  prior to the  Initial
     Closing Date, to exclude such Site from the  transactions  contemplated  by
     this Agreement (any such excluded Site, an "Excluded Site");  provided that
     there will be no more than fifty (50) Excluded Sites. If Contributors elect
     to designate a Site as an Excluded Site pursuant to this Section 3.3(b)(i),
     Lessee may, at any time prior to the Initial Closing,  require Contributors
     to  contribute  their right,  title and interest to the Leased  Property of
     such Site to Lessor and cause  Lessor to Lease the Leased  Property of such
     Site to Lessee pursuant to the terms and conditions of the Lease Agreement;
     provided, that in such event,  notwithstanding  anything to the contrary in
     this Agreement,  Contributors  and Lessor will not be responsible  for, and
     Lessee agrees to indemnify  Contributors  and Lessor from and against,  any
     Liabilities  resulting  from or arising in connection  with any  Exceptions
     applicable  to such  Site and no such  Exception  will be  considered  when
     determining whether a Material Adverse Effect has occurred or is reasonably
     likely to occur.  Subject to the preceding sentence,  all references to any
     Site  designated by  Contributors as an Excluded Site in this Agreement and
     the Schedules or Exhibits attached to this Agreement will be deemed to have
     been deleted,  all Exceptions  related to such Excluded Site will no longer
     be  Exceptions,  and such  Excluded  Site  will no longer be a "Site" to be
     operated or Leased pursuant to this Agreement and the Lease Agreement.

          (ii) Cure.  Contributors  and, after the Initial Closing Date,  Lessor
     may cure an Exception or Exceptions with respect to a Site in accordance


                                       26




     with the terms of this Section  3.3(b)(ii).  An Exception will be deemed to
     have been cured by Contributors and/or Lessor:

          (1) Corrective  Action - if, subject to Lessee's prior approval in its
     reasonable   discretion,   Contributors   and/or  Lessor  will  have  taken
     corrective action with respect thereto  (including,  by way of example,  by
     obtaining  required consents or approvals from third parties,  by acquiring
     rights or property  from third  parties,  by  obtaining  or  providing  any
     affidavits or certificates, or otherwise) in such a manner as is reasonably
     acceptable to Lessee and, if applicable, Title Company;

          (2) Title  Insurance - if such Exception  relates solely to title,  if
     Title  Company will have  committed to issue to the Lessee and its lenders,
     without  indemnity  from Lessee,  a leasehold  title  insurance  policy (or
     lender's policy, as applicable)  (which policy is acceptable,  including as
     to  coverage  amount,  to  Lessee  in its  reasonable  discretion)  without
     exception for such Exception (other than standard printed  exceptions),  or
     with affirmative coverage over such Exception;

          (3) Insurance - if Contributors or Lessor will have obtained insurance
     coverage  (which  coverage  is  acceptable  to  Lessee  in  its  reasonable
     discretion)  on behalf of Lessee and its lenders,  which insures Lessee and
     its lenders against, or insures over, such Exception; or

          (4)  Indemnification  - (A) if  Contributors,  Sprint  or  Lessor,  as
     requested and determined by Lessee,  will have agreed to indemnify  Lessee,
     to Lessee's satisfaction, against all Liabilities which may arise from such
     Exception  (such  indemnification  not being subject to the  limitations on
     Contributors'  liability  pursuant  to Section  9.5),  in which  event such
     Liabilities will be deemed "Excluded Liabilities"  hereunder, or (B) if the
     applicable  Contributor or, after the Initial  Closing,  Lessor,  will have
     agreed to cancel the Lease of the Leased  Property  of such Site and refund
     the  applicable  Rent for the Leased  Property of such Site,  or  Pre-Lease
     Rent,  as the case may be, in  question  within  six (6)  months  after the
     applicable  Technical Closing if the Exception is not cured pursuant to any
     of the other  clauses  of this  Section  3.3(b)  within  such six (6) month
     period.

     (c)  Contributors  will  be  responsible  for  all  out-of-pocket  expenses
incurred by Contributors relating to their cooperation and/or cure of Exceptions
in accordance with the terms of this Section 3.3.

     SECTION  3.4  Certain  Procedures  with  respect  to  Shared  Ground  Lease
Payments.

     (a) The parties  acknowledge  and agree that it is the  interest of each to
establish on or prior to the Initial  Closing  whether or not any Shared  Ground
Lease  Payments exist and,  where  possible,  to quantify the same. As a result,
Lessee will use


                                       27




commercially reasonable efforts,  concurrently with the addressing of Exceptions
and the obtaining of Ground Lessor Estoppels to identify and resolve  situations
that could involve Shared Ground Lease Payments.

     (b) Sprint,  on behalf of Contributors and, after the Initial Closing Date,
Lessor, will use commercially  reasonable efforts and will cooperate with Lessee
in all efforts of Lessee to identify and resolve  situations  that could involve
Shared Ground Lease  Payments,  in each case, as promptly as practicable  and in
any event  will  respond  within  five (5)  business  days with  respect  to any
actions,  waivers,  consents or documents that Lessee requests from Contributors
or Lessor;  provided that, none of Sprint,  Contributors or Lessor will have any
right or obligation to directly  resolve  situations  that could involve  Shared
Ground Lease Payments (other than by using the commercially  reasonable  efforts
to assist Lessee as described herein).

     (c) Lessee may settle or  compromise  any claim or consent  with respect to
Shared  Ground  Lease  Payments   without  the  prior  written  consent  of  the
Contributors,  Lessor  or Sprint  whether  before,  at or after  the  applicable
Closing Date.

     SECTION 3.5 Arbitration.

     If  there  is any  dispute  or  controversy  relating  to this  Article  3,
Contributors (and, if after the Initial Closing,  Lessor) or Lessee, as the case
may be, will deliver to the other parties one or more written notices (a "Notice
of Dispute") that will specify in reasonable  detail the dispute that such party
wishes to have  resolved.  If the  parties  are not able to resolve  the dispute
within  thirty  (30) days of each  party's  receipt of an  applicable  Notice of
Dispute,  within ten (10) days  following the  expiration of such 30-day period,
the parties will initiate arbitration  proceedings with an individual arbitrator
mutually selected by the parties, each party acting reasonably.  The arbitration
will  be  held in  Chicago,  Illinois  or such  other  location  as is  mutually
agreeable  to  Contributors  (and,  if after the  Initial  Closing,  Lessor) and
Lessee. All arbitrations will be governed by the applicable  commercial rules of
the  American  Arbitration   Association  ("AAA")  for  accelerated  arbitration
proceedings. The arbitrator will prepare in writing, and provide to the parties,
such arbitrator's  determination,  including factual findings and the reasons on
which the determination was based. The decision of the arbitrator will be final,
binding  and  conclusive  and will not be subject to review or appeal and may be
enforced in any court having jurisdiction over the parties.

     SECTION 3.6 Special Zoning Sites.

     If prior to the Closing  with  respect to a Site,  Contributors,  Lessor or
Lessee  discover that a Site  constitutes a Special  Zoning Site,  Contributors,
Lessor or Lessee,  as the case may be, will  promptly  inform the other  parties
that it considers such Site to be a Special Zoning Site, and provide  reasonable
specificity  as to the  reasons  therefor.  If such other  parties do not object
within  ten (10)  business  days of receipt  of such  notice,  such Site will be
deemed to be a Special Zoning Site. All disputes concerning the designation of a
Site as a Special  Zoning Site will be resolved by  arbitration  as described in
Section  3.5. If a Site is a Special  Zoning  Site,  Lessee may,  upon notice to
Contributors and Lessor,  attempt to remedy the circumstances  therefor prior to
the Final Closing Date.


                                       28




If Lessee does not remedy such  circumstances  prior to the Final  Closing Date,
the provisions of Section 2.7(e) will apply.

     SECTION 3.7 Casualty Sites.

     If prior to the Initial  Closing,  Contributors  or Lessee  discover that a
Site  constitutes a Casualty Site,  Contributors or Lessee,  as the case may be,
will promptly notify the other parties in writing that it considers such Site to
be a Casualty Site, with reasonable  specificity as to the reasons therefor.  If
such other  parties do not object  within ten (10)  business  days of receipt of
such  notice,  such  Site will be deemed to be a  Casualty  Site.  All  disputes
concerning  the  designation  of a Site as a Casualty  Site will be  resolved by
arbitration  as  described  in Section  3.5, it being  agreed that the burden of
proof will fall on the party  asserting the  existence of a Casualty  Site. If a
Site is deemed a Casualty Site, then:

     (a)  Excluded  Site.  If such  Site is a  Casualty  Site as a  result  of a
condemnation  (or  pending  condemnation)  or  a  foreclosure,  deed-in-lieu  of
foreclosure, or similar proceeding involving a Ground Lessor Lien, any party may
elect by written notice to others given at any time prior to the Initial Closing
to  exclude  such  Casualty  Site  from the  transactions  contemplated  by this
Agreement (any such Casualty Site no longer being referred to as a Casualty Site
and being referred to as an Excluded Site). If Contributors elect to designate a
Site as an Excluded  Site  pursuant to this Section  3.7(a),  Lessee may, at any
time  prior to the Final  Closing  Date with  respect  to any Site that does not
contain any Sprint Collocation Space,  require  Contributors to contribute their
right,  title and interest in and to the Leased  Property of such Site to Lessor
and cause Lessor to Lease the Leased Property of such Site to Lessee pursuant to
the terms and conditions of the Lease Agreement;  provided,  that in such event,
notwithstanding  anything to the contrary in this  Agreement,  Contributors  and
Lessor will not be responsible for, and Lessee agrees to indemnify  Contributors
and  Lessor  from and  against,  any  Liabilities  resulting  from or arising in
connection  with the  structure of such Site and no  structural  defects of such
Site will be considered when  determining  whether a Material Adverse Effect has
occurred or is reasonably  likely to occur.  Subject to the preceding  sentence,
all references to any Site designated by Contributors  and/or, after the Initial
Closing,  Lessor as an Excluded  Site in this  Agreement  and the  Schedules  or
Exhibits  attached to this  Agreement  will be deemed to have been deleted,  and
such Excluded Site will no longer be a "Site" to be Leased or operated by Lessee
pursuant to this Agreement and the Lease Agreement.

     (b)  Damaged  Sites.  With  respect  to Sites  physically  damaged by Force
Majeure, Contributors may elect to repair the Tower prior to the Initial Closing
Date so as to bring the  condition of such Tower to  substantially  the same (or
better) condition that it was in immediately prior to the event or occurrence of
the event causing such Tower to be designated  as a Casualty  Site,  or, in lieu
thereof,  if the Tower has not been so  repaired by the  Initial  Closing  Date,
Contributors  and/or Lessor may elect to pay or reimburse  Lessee at the Initial
Closing  for the  amount of the actual  out-of-pocket  costs  incurred  or to be
incurred by Lessee to repair the Tower if the Tower has not been repaired by the
Initial Closing in the manner  described above or the amount estimated by Lessee
in good  faith to be  required  to so repair the Tower if the Tower has not been
repaired by the Initial Closing.



                                       29




     With respect to each damaged  Casualty Site, if Contributors  and/or Lessor
do not,  or do not elect to,  repair the Tower or pay Lessee to repair the Tower
pursuant to this Section 3.7(b) prior to the Initial Closing, then, in each such
case,  such Casualty Site will be treated as an Excluded Site as if Contributors
had elected to exclude such  Casualty  Site  pursuant to Section  3.7(a)  unless
Lessee will elect to cause  Lessor to Lease the Leased  Property of such Site in
accordance with Section 3.7(a).

     SECTION 3.8 Recordation of Documents; Signage.

     (a) Contributors  acknowledge that Lessee will be permitted to undertake to
record any Ground Lease,  memorandum of Ground Lease, assignment of Ground Lease
to  Lessor,  Ground  Lessor  Estoppels,   Non-Disturbance  Agreements  and  Site
Designation  Supplements.  Lessee will deliver to Contributors written notice of
such recordation with supporting  documentation (the "Recordation  Notice") (not
more often than once per month)  setting forth in  reasonable  detail the actual
costs   recording   costs  incurred  by  Lessee  in  connection  with  any  such
recordation.  Within ten (10) business days following  receipt of such invoices,
Contributors  will pay to Lessee an amount equal to fifty  percent (50%) of such
actual  costs  incurred  by  Lessee  as set  forth  in the  Recordation  Notice;
provided, that the total amount of Contributors'  reimbursement  obligations set
forth  in  this  Section  3.8  will  not  exceed  $1,325,000  in the  aggregate.
Contributors shall also pay one hundred percent (100%) of the actual recordation
costs incurred by Lessee for recording Corrective Assignments,  which shall also
be set  forth  in the  Recordation  Notice,  but  the  costs  of  recording  the
Corrective  Assignments  shall not be  subject  to the  provisions  of the prior
sentence.

     (b) Contributors and Lessor will execute documents  reasonably requested by
Lessee to effect any such recordation and will cooperate with Lessee in pursuing
such recordation (subject to the cost limitations in clause (a) above).

     (c) Lessee,  after the applicable Closing with respect to a Site, will have
the right to place, at its sole cost and expense,  accurate signage on such Site
to put  third  parties  on notice  of its  interest  in such  Site,  subject  to
compliance with applicable Laws and any Ground Lease for the Site in question.

     SECTION  3.9  Allocation  of  Rent  and  Pre-Lease  Rent;   Multiple  Lease
Agreements

     (a) On or before May 15, 2005,  Contributors  will cause to be delivered to
Lessee,  for Lessee's  review and  approval,  a draft of Exhibit H to each Lease
Agreement,  which  will set forth (i) the Rent and the  Pre-Lease  Rent for each
Site based on the Rent and Pre-Lease Rent Allocation  Principles,  (ii) the Rent
and the Pre-Lease Rent allocation  under Section 467 of the Code to each year of
the Term for each Site, based on a level allocation, (iii) the proportional Rent
and  Pre-Lease  Rent under  Section 467 for each year of the Term for each Site,
(iv) the Section 467 loan  balance for each year of the Term for each Site,  (v)
the Section 467 interest  component for each year of the Term for each Site, and
(vi) the Option  Purchase Price for each Site based on the Option Purchase Price
Allocation Principles; in each case based on financial information for the Sites
through and  including  March 31, 2005.  The parties  hereto agree to reasonably
cooperate to



                                       30





finalize  Exhibit H to each Lease  Agreement as soon as  practicable,  but in no
event less than ten (10) days prior to the  Initial  Closing  Date,  which shall
reflect  valuation  of the Sites as of the Initial  Closing  Date.  Any disputes
regarding the form of Lease Agreement,  including the items described on Exhibit
H, will be resolved by  arbitration  as described in Section 3.5;  provided that
the amounts  determined by the  appraisal  and the choice of American  Appraisal
Associates as appraiser will not be subject to arbitration (it being  understood
and agreed that the process and cooperation  requirements  set forth in Exhibits
D-1 and D-2 shall be subject to  arbitration).  If the aggregate Option Purchase
Price for the  6,628  Sites  currently  listed  on  Exhibit  A and B hereto,  as
determined by American Appraisal Associates and delivered in accordance with the
Option  Purchase  Price  Allocation  Principles,  shall  exceed two billion five
hundred fifty million dollars ($2,550,000,000),  then (i) if the Option Purchase
Price is equal to or greater than two billion five hundred fifty million dollars
($2,550,000,000),  but  less  than  two  billion  six  hundred  million  dollars
($2,600,000,000),  the aggregate Rent and Pre-Lease Rent shall be reduced by one
million eight hundred thousand dollars ($1,800,000); (ii) if the Option Purchase
Price is equal to or  greater  than two  billion  six  hundred  million  dollars
($2,600,000,000),  but less than two billion six hundred fifty  million  dollars
($2,650,000,000),  the  aggregate  Rent and  Pre-Lease  Rent shall be reduced by
three million six hundred  thousand  dollars  ($3,600,000);  (iii) if the Option
Purchase Price is equal to or greater than two billion six hundred fifty million
dollars  ($2,650,000,000),  but less  than two  billion  seven  hundred  million
dollars ($2,700,000,000), the aggregate Rent and Pre-Lease Rent shall be reduced
by five million four hundred thousand dollars  ($5,400,000);  (iv) if the Option
Purchase  Price is equal to or greater than two billion  seven  hundred  million
dollars  ($2,700,000,000),  but less  than two  billion  eight  hundred  million
dollars ($2,800,000,000), the aggregate Rent and Pre-Lease Rent shall be reduced
by nine million four hundred  thousand dollars  ($9,400,000);  (v) if the Option
Purchase  Price is equal to or greater than two billion  eight  hundred  million
dollars ($2,800,000,000), but less than two billion nine hundred million dollars
($2,900,000,000),  the  aggregate  Rent and  Pre-Lease  Rent shall be reduced by
thirteen million four hundred thousand  dollars  ($13,400,000);  and (vi) if the
Option  Purchase  Price is equal to or greater  than two  billion  nine  hundred
million   dollars   ($2,900,000,000),   but  less  than  three  billion  dollars
($3,000,000,000),  the  aggregate  Rent and  Pre-Lease  Rent shall be reduced by
seventeen million four hundred thousand dollars ($17,400,000).  If the aggregate
Rent and Pre-Lease  Rent is so reduced at the Initial  Closing,  such  reduction
shall be allocated among the Rent and Pre-Lease Rent  attributable to all of the
Sites that are the subject of the Initial  Closing,  in accordance with the Rent
and Pre-Lease Rent Allocation  Principles.  If the Option Purchase Price exceeds
three  billion  dollars  ($3,000,000,000),  Lessee  shall  have  the  option  to
terminate this  Agreement,  and Escrow Agent shall return the Deposit,  together
with all earnings thereon, to Lessee.

     (b) Contributors  may, on notice to Lessee, at least thirty (30) days prior
to the Initial Closing,  elect at Closing to enter into up to seven (7) separate
Lease Agreements,  each with a separate Lessor,  and such notice shall set forth
the Sites  subject to each such Lease  Agreement  (which  Sites shall be divided
based on geography and not other  factors),  provided that (i) each Site will be
leased or pre-leased under only one Lease Agreement,  (ii) under each such Lease
Agreement,  the "Global Parent Maximum  Obligation"  (as defined  therein) shall
mean  an  amount  equal  to the  product  of (x)  two  hundred  million  dollars
($200,000,000) and (y) a fraction the numerator of which is the aggregate sum of



                                       31





the Rent and the Pre-Lease  Rent for the Sites  subject to such Lease  Agreement
and the  denominator of which is the aggregate sum of the Rent and the Pre-Lease
Rent for all Sites leased or pre-leased at the Closing, (iii) the obligations of
"Sprint"  and  "Lessor"  under,   and  as  defined  in,  each  Lease  Agreement,
respectively,  may,  at the  election  of  Lessee  be  cross-defaulted  with the
obligations of "Sprint" and "Lessor"  under the other Lease  Agreements and (iv)
any Collocation  Agreements bifurcated so a Collocation Agreement does not cover
any sites held by more than one Lessor,  provided,  however, if Contributors can
demonstrate to Lessee a material  economic  reason for having  additional  Lease
Agreements,  and same does not cause material incremental costs to Lessee (which
hardship Lessee shall describe to Contributors,  by written notice, delivered at
least fifteen (15) days prior to the Initial  Closing  Date),  Contributors  may
enter into up to fifteen (15) Lease Agreements,  each with a separate lessor, in
accordance  with the other  provisions of this sentence.  The Parties shall,  in
good faith,  resolve any disputes  under the prior  sentence.  Lessor and Lessee
will agree in good faith upon the structure and components of each separate form
of Lease Agreement, including the exhibits and schedules thereto.

                                   ARTICLE 4

            REPRESENTATIONS AND WARRANTIES OF CONTRIBUTORS AND SPRINT

     Subject  to the  terms,  conditions  and  limitations  set  forth  in  this
Agreement,  each  Contributor  and Sprint  represents  and warrants to Lessee as
follows:

     SECTION 4.1 Organization.

     Each  Contributor  and  Sprint  is  a  corporation  or  other  entity  duly
organized,  validly existing and in good standing under the laws of the state of
its organization with full corporate or other power and authority to carry on in
all material  respects its business  (including,  if applicable,  the ownership,
lease and  operation  of the  Leased  Property  of the Sites) as it is now being
conducted and is duly qualified and in good standing as a foreign entity in each
jurisdiction  in which the  character of the Leased  Property  owned,  leased or
operated by it requires such  qualification,  except for such qualifications the
failure of which to obtain,  individually  or in the aggregate,  has not had and
would not reasonably be expected to have a Material Adverse Effect.

     SECTION 4.2 Authority; No Conflicts.

     (a) Each  Contributor  and Sprint has the corporate  power and authority to
execute and  deliver  this  Agreement,  to perform  its  obligations  under this
Agreement,  and to consummate the  transactions  contemplated by this Agreement,
and each  Contributor  and Sprint has or will have the  corporate or other power
and authority to execute and deliver each Collateral  Agreement to which it is a
party, to perform its obligations  thereunder and to consummate the transactions
contemplated  thereby. The execution and delivery by each Contributor and Sprint
of this Agreement, and the consummation of the transactions contemplated by this
Agreement  have been and the  execution  and  delivery by each  Contributor  and
Sprint of the Collateral  Agreements to which it is a party and the consummation
of the transactions contemplated thereby on or prior to the Initial Closing Date
will have been,  duly  authorized by all requisite  corporate or other action of
each



                                       32




Contributor  and Sprint.  Each  Contributor and Sprint (i) has duly executed and
delivered  this  Agreement,  (ii) on the  Initial  Closing  Date  will have duly
executed and delivered each of the Collateral  Agreements to which it is a party
(if any), and (iii) on each  Technical  Closing Date will have duly executed and
delivered the amended schedules and exhibits to the existing, or new, Collateral
Agreements  to  which  it is a  party,  as the  case  may be.  Assuming  the due
execution  and delivery of each such  agreement by each party thereto other than
each  Contributor  and Sprint,  this  Agreement is the legal,  valid and binding
obligation of each Contributor and Sprint,  and on the Initial Closing Date each
of the Collateral Agreements to which each Contributor and Sprint is a party (as
theretofore  amended)  will be the legal,  valid and binding  obligation of such
Person,  in each case  enforceable  against it in accordance with its respective
terms  subject  to  the  effect  of  bankruptcy,   insolvency,   reorganization,
moratorium  or other  similar  laws  relating  to or  affecting  the  rights  of
creditors  generally and to the effect of the application of general  principles
of equity.

     (b) The execution,  delivery and performance by each Contributor and Sprint
of this Agreement and each of the Collateral  Agreements to which it is a party,
and the consummation of the  transactions  contemplated by this Agreement and by
the  Collateral  Agreements,  do not and will not with or without  the giving of
notice or the passage of time, or both,  conflict with, or result in a breach or
violation of, or constitute a default under,  or permit the  acceleration of any
obligation or liability in (i) any  provision of the Articles of  Incorporation,
Bylaws or other  organizational  documents of each Contributor and Sprint,  (ii)
except as set forth in Section 4.2(b)(ii) of the Contributors Disclosure Letter,
any provision of Law or a Governmental  Approval or (iii) any material agreement
of any  applicable  Contributor  or Sprint or relating to the Sites  (other than
Excluded  Sites or  Strategic  Sites) or the Leased  Property.

     SECTION 4.3 Real Property.

     (a) With respect to each Site,  except for (i) Permitted  Encumbrances  and
Liens created by, through or under a Person other than Sprint,  Contributors  or
their respective Affiliates, and (ii) such breaches and inaccuracies as have not
had and would not  reasonably  be expected to result in a Tower  Liability,  the
applicable Contributor holds good and marketable fee simple title in the case of
Owned Sites Land, or a valid and subsisting leasehold or other valid interest or
right in the case of Leased Sites Land and Other Interest  Sites Land,  free and
clear of all Liens  created  by  Contributors.  Except as  disclosed  in Section
4.3(a) of Contributors Disclosure Letter: (A) no Contributor or Affiliate of any
Contributor  owns the fee or any superior  interests in any Leased Site or Other
Interest  Site,  (B) no Site is a Shared Site,  (C) no Contributor is a party to
any  agreement  with any Person  (other  than this  Agreement)  to  transfer  or
encumber  all or any  portion of any Site  (excluding,  for these  purposes  the
rights of the Tower Subtenants under the Collocation Agreements) and (D) none of
the lenders of Sprint,  Contributors  or any of their  Affiliates has a security
interest in such Site.

     (b) Except as disclosed on Section  4.3(b) of the  Contributors  Disclosure
Letter,  to Contributors'  knowledge,  no condemnation or re-zoning  proceedings
have been instituted or are threatened, with respect to any Site.


                                       33



     SECTION 4.4 Title; Ownership and Related Matters.

     (a) The applicable  Contributor  owns all right,  title and interest in and
to,  or has a valid  leasehold  interest  in or other  right to use,  all of the
Equipment (other than the Excluded Equipment),  Towers and Tower Related Assets,
free and clear of any Liens, except for Permitted Encumbrances and Liens created
by,  through  or  under a  Person  other  than  Sprint,  Contributors  or  their
respective Affiliates. Except as disclosed in Section 4.4(a) of the Contributors
Disclosure Letter, the interests being Leased by Lessor to Lessee at the Initial
Closing with respect to the Leased Property  include,  or will include as of the
Initial  Closing Date, the Lease or assignment,  as applicable,  of all personal
property,  both  tangible  and  intangible,  rights  and  agreements  reasonably
necessary  to operate such  Equipment,  Towers and Tower  Related  Assets in all
material  respects  as  operated  on or  immediately  prior  to the date of this
Agreement, except where the failure to do so would not reasonably be expected to
result in a Tower Liability.

     (b) As of the Initial  Closing Date, with respect to each Master Lease Site
for which the Leased  Property  of such Site is to be Leased by Lessor to Lessee
at  the  Initial  Closing,  the  Leased  Property  will  not be  subject  to any
Exceptions or Liens, other than Permitted Encumbrances.

     (c) Except as disclosed in Section  4.4(c) of the  Contributors  Disclosure
Letter,  each Site  includes a Tower that is  operational  and in good order and
repair  (consistent with industry  standards for wireless  communications  tower
sites) and each Site includes  Equipment  and Tower  Related  Assets that are in
satisfactory working order.

     (d) Except as disclosed in Section  4.4(d) of the  Contributors  Disclosure
Letter,  each Site has, pursuant to an easement or other valid agreement running
with the land on which such Site is  located,  for the benefit of one or more of
the  Contributors,  the  rights to  install,  maintain,  and use  utilities  for
provision of electric power and telephone service.

     (e) Except as disclosed in Section  4.4(e) of the  Contributors  Disclosure
Letter,  each Site has vehicular ingress and egress to public streets or private
roads pursuant to an easement or other valid agreement  running with the land on
which such Site is located, that is suitable for four wheel drive vehicles.

     SECTION 4.5 Material Agreements.

     Except as set forth in Section 4.5 of the Contributors  Disclosure  Letter,
true,  correct and complete (in all  material  respects)  copies of all Material
Agreements  have been provided to Lessee.  Except as set forth in Section 4.5 of
the Contributors Disclosure Letter:

     (a) each Material Agreement (i) is in full force and effect,  (ii) has been
duly  authorized,  executed and delivered by Contributors  and, to Contributor's
knowledge,  the other  parties  thereto and (iii) is a legal,  valid and binding
obligation  and  enforceable  against each of the parties  thereto in accordance
with its terms;


                                       34





     (b) no Contributor  nor, to Contributors'  knowledge,  any other party to a
Material Agreement has, or to Contributors'  knowledge has been alleged to have,
defaulted,  breached or violated any material  term or condition  thereof and no
Contributor  has  received  notice,  whether  written,  oral  or  otherwise,  of
cancellation,  termination,  non-renewal  or  rejection  in  bankruptcy  of such
Material Agreement;

     (c) no Material  Agreement  contains any  restriction  or limitation on the
ability of a Contributor  to compete with any Person or to engage in any line of
business with any Person that will be binding on Lessee or its  Affiliates  from
and after the Initial Closing;

     (d)  except  as  provided  in the  Collateral  Agreements,  at the  Initial
Closing,  there will be no marketing,  management or other contracts pursuant to
which any Person  other than the  Contributors  or Sprint on behalf of the other
Contributors  has the right to market or lease  tower  space to any  Person at a
Site;

     (e) except for the Material Agreements, there is no other material contract
or agreement, other than any Collateral Agreement, relating to the construction,
acquisition ownership, lease, operation, marketing, monitoring or maintenance of
the Sites (other than Excluded Sites or Strategic Sites); and

     (f) no Contributor  holds or has right to obtain,  as a security deposit or
similar  collateral or security under a Collocation  Agreement,  any cash,  cash
equivalents, letters of credit or marketable securities; and

     (g) no  Master  Collocation  Agreement  provides  reciprocal  rights  for a
Contributor to collocate on a wireless  communication tower owned or leased by a
Tower Subtenant.

     SECTION 4.6 Litigation; Orders.

     Except as disclosed in Section 4.6 of the Contributors  Disclosure  Letter,
there is no action,  suit or proceeding pending or, to Contributors'  knowledge,
threatened  against any  Contributor or any portion of the Leased Property by or
before any  Governmental  Authority  or by any Person.  Except as  disclosed  in
Section  4.6 of the  Contributors  Disclosure  Letter,  there  are no  Orders or
stipulations  of or by any  Governmental  Authority  or any Person  against  any
Contributor with respect to the Leased Property of any of the Sites or otherwise
binding on any Leased  Property  of any of the Sites  that would  reasonably  be
expected to result in a Tower Liability. To Contributors'  knowledge,  there are
no Orders, and there are no actions or proceedings by any Governmental Authority
pending or  threatened  in  writing,  that are  reasonably  expected to have the
result set forth in Section 8.3.

     SECTION 4.7 Environmental Matters.

     Except as disclosed in Section 4.7 of the Contributors  Disclosure  Letter,
to Contributors' knowledge, the applicable Contributor holds, and is in material
compliance with, all Environmental Permits required by Law to be held by it with
respect to the applicable Sites. Each Contributor  otherwise operates the Leased
Property of the Sites that are owned or operated by such Contributor in material
compliance with all applicable



                                       35




Environmental  Laws, except where the failure to be in such compliance would not
reasonably  be  expected to result in a Tower  Liability.  To the  knowledge  of
Contributors,  Contributors have provided to Lessee true, correct,  complete and
accurate  copies  of all  Phase I and  Phase II  environmental  site  assessment
reports,  ground water monitoring reports,  remedial action plans and regulatory
correspondence related to the Sites that are in the files, custody or control of
Contributors.  No  Hazardous  Material  will have been  present  in, on, over or
under,  and  there  will  have  been  no  escape,  seepage,  leakage,  spillage,
discharge,  emission or Release on or from any Site of any  Hazardous  Materials
resulting from the operations or activities of any Sprint Contributor, or Sprint
Collocator or any Affiliate of such Persons; (vi) there has been no violation of
any  Environmental  Laws  relating  to or  affecting  any  Site  caused  by  the
operations  or activities of any Sprint  Contributor,  Sprint  Collocator or any
Affiliate  of such  Persons;  and (vii)  there  will have been no Release of any
Hazardous  Materials or the violation of any of the Environmental  Laws prior to
the Initial Closing Date in connection with any other property not consisting of
the Sites owned,  operated or used by or on behalf of any Sprint  Contributor or
Sprint  Collocator or any Affiliate of such Persons,  which violation or Release
gives or may give rise to any rights whatsoever in any Party with respect to any
Site by virtue of any of the Environmental Laws.

     SECTION 4.8 Brokers, Finders, Etc.

     Contributors have not employed any broker,  finder,  investment  banker, or
other  intermediary  or incurred any liability for any investment  banking fees,
financial  advisory fees,  brokerage fees,  finders' fees, or other similar fees
for which  Lessee  would be  responsible  in  connection  with the  transactions
contemplated by this Agreement or any of the Collateral Agreements.

     SECTION 4.9 Financial Statements.

     (a)  Contributors  have made available to Lessee true and correct copies of
the audited  consolidated balance sheet of the Sites as of December 31, 2003 and
December 31, 2002, the audited consolidated statements of operations, net equity
and cash  flows of the Sites for each of the fiscal  years  ended  December  31,
2003, December 31, 2002 and December 31, 2001,  including the notes thereto, the
unaudited consolidated balance sheet of the Sites, dated September 30, 2004 (the
"Interim  Balance Sheet Date"),  and the  unaudited  consolidated  statements of
operations  and cash  flows of the  Sites for the nine (9)  month  period  ended
September  30, 2004  presented on a basis  consistent  with the year end audited
financial statements. All of the foregoing financial statements are collectively
referred to in this Agreement as the "Financial Statements." Except as disclosed
in the Financial  Statements,  the Financial  Statements  present  fairly in all
material respects the financial position,  results of operations, net equity and
cash  flows of the  Sites on a  consolidated  basis as of the  dates and for the
applicable periods indicated,  in each case in conformity with GAAP consistently
applied except as noted in the Financial  Statements.  The Financial  Statements
(including  the notes  thereto)  were  prepared  from the  books,  accounts  and
financial records of Contributors.

     (b) Except as disclosed in Section  4.9(b) of the  Contributors  Disclosure
Letter,  since the Interim Balance Sheet Date, each Contributor has operated the
Sites that are


                                       36




owned or operated by such  Contributor in the ordinary course and has maintained
and  preserved  the Leased  Property  and has not  disposed of any of the Leased
Property,  except in the ordinary course of business, and there has not been any
event, occurrence or development which would reasonably be expected to result in
a Tower Liability.

     (c)  Notwithstanding  any other provision in this  Agreement,  Contributors
make no representation  or warranty with respect to the operations,  net equity,
cash  flows or other  financial  measures  related  to the  Qwest  Sites and the
parties acknowledge that the "Financial  Statements" referred to in this Section
do not reflect any information or results relating to the Qwest Sites.

     SECTION 4.10 Per Tower Data.

     (a) Section 4.10(a) of the Contributors  Disclosure  Letter contains a true
and correct  schedule of the  following  items with  respect to each Site (other
than any Excluded Site, Strategic Site or Qwest Site) as of September 30, 2004:

          (i) each Tower and its cascade number;

          (ii) whether Contributors occupy any collocation space on such Site;

          (iii) the  Collocation  Agreement  number and  identity  of each Tower
     Subtenant  (including  any Affiliate of a  Contributor  that is not another
     Contributor)  on the Tower of such Site and the monthly  revenue  currently
     being  billed  related  to the Tower  Subtenants  on the Tower of such Site
     along  with the  commencement  date of the  Collocation  Agreement  and the
     frequency,  basis of calculation  (either fixed amount or  percentage)  and
     amount  of any rent  escalation  clauses  associated  with the  Collocation
     Agreement;

          (iv) the amount of ground lease expense,  including  revenue share but
     excluding  ground rent leveling  expense recorded under SFAS 13, related to
     such Site; and

          (v) the Tower height and Tower-type category.

     (b) Section 4.10(b) of the Contributors  Disclosure  Letter contains a true
and correct schedule of the following items with respect to each Qwest Site:

          (i) each wireless communications tower and its cascade number;

          (ii) whether  Contributors  occupy any collocation space on such Qwest
     Site

          (iii) the number and  identity  of  collocation  tenants on such Qwest
     Site  and the  monthly  revenue  currently  being  billed  related  to such
     tenants; and


                                       37




          (iv) the amount of ground lease expense,  including  revenue share but
     excluding  ground rent leveling  expense recorded under SFAS 13, related to
     such Site.

     SECTION 4.11 Compliance with Laws and Governmental Authorizations

     (a) Except as set forth in Section 4.11(a) of the  Contributors  Disclosure
Letter,  the  Contributors  have operated and are  operating  each Site (and all
related Tower Assets) materially in accordance with all necessary Authorizations
and  in  compliance  with  applicable  Laws  (excluding  for  this  purpose  any
Environmental  Laws) affecting such Site,  except where the failure to have such
Authorizations  or be in such  compliance  would not  reasonably  be expected to
result in a Tower Liability.

     (b) None of the  Contributors  has received notice of any Legal Action from
any Governmental Authority or other Person as to the condition, operation of, or
any  Authorizations  with respect to, any Site that would reasonably be expected
to result in a Tower Liability.

     (c) Section 4.11(c) of the Contributors Disclosure Letter sets forth all of
the  Contributors'  Ground  Lessors  that  may  be  utilities  regulated  by the
California  Public  Utilities  Commission or subject to Section 851 as described
thereon.

     SECTION 4.12 No Implied Representations.

     NOTWITHSTANDING  ANY OTHERWISE EXPRESS  REPRESENTATIONS AND WARRANTIES MADE
BY CONTRIBUTORS OR SPRINT IN THIS AGREEMENT,  NEITHER SPRINT NOR ANY CONTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY TO LESSEE WITH RESPECT TO:

     (a) ANY PROJECTIONS,  ESTIMATES OR BUDGETS HERETOFORE  DELIVERED TO OR MADE
AVAILABLE TO LESSEE  RELATING TO FUTURE  REVENUES,  EXPENSES OR  EXPENDITURES OR
FUTURE RESULTS OF OPERATIONS; OR

     (b) EXCEPT AS EXPRESSLY COVERED BY A REPRESENTATION  AND WARRANTY CONTAINED
IN THIS ARTICLE 4, ANY OTHER  INFORMATION OR DOCUMENTS  (FINANCIAL OR OTHERWISE)
MADE AVAILABLE TO LESSEE OR ITS COUNSEL, ACCOUNTANTS OR ADVISERS WITH RESPECT TO
SPRINT,  CONTRIBUTORS OR ANY OF THEIR RESPECTIVE AFFILIATES, THE LEASED PROPERTY
OF THE SITES OR THE ASSUMED LIABILITIES.

                                   ARTICLE 5

                    REPRESENTATIONS AND WARRANTIES OF LESSEE

     Lessee represents and warrants to Contributors and Sprint as follows:

     SECTION 5.1 Incorporation.


                                       38




     Lessee is a corporation or other entity duly  organized,  validly  existing
and in good standing under the laws of the state of its  organization  with full
corporate or other power and authority to carry on in all material  respects its
business as it is now being conducted and is duly qualified and in good standing
as a foreign corporation in each jurisdiction in which the character of Lessee's
business requires such qualification, except for such qualifications the failure
of which to obtain,  individually or in the aggregate, has not had and would not
reasonably be expected to have a Lessee Material Adverse Effect.

     SECTION 5.2 Authority.

     Lessee has the  corporate  power and  authority to execute and deliver this
Agreement,  to perform its obligations  under this Agreement,  to consummate the
transactions  contemplated by this Agreement and to lease the Leased Property or
otherwise  operate the Sites, and Lessee has or will have the corporate or other
power and authority to execute and deliver each Collateral Agreement, to perform
its  obligations  thereunder,  and to consummate the  transactions  contemplated
thereby.  The  execution  and  delivery  by  Lessee  of this  Agreement  and the
consummation of the  transactions  contemplated by this Agreement have been, and
the  execution  and  delivery  by Lessee of the  Collateral  Agreements  and the
consummation of the transactions contemplated thereby on or prior to the Initial
Closing Date will have been, duly authorized by all requisite corporate or other
action of Lessee. Lessee (a) has duly executed and delivered this Agreement, (b)
on the Initial  Closing Date will have duly executed and  delivered  each of the
Collateral  Agreements,  and (c) on each  Technical  Closing Date will have duly
executed and  delivered  the amended  schedules  and exhibits to the  Collateral
Agreements.  Assuming the due execution  and delivery of each such  agreement by
each party thereto  other than Lessee,  this  Agreement is the legal,  valid and
binding  obligation  of  Lessee,  and on the  Initial  Closing  Date each of the
Collateral  Agreements  (as  theretofore  amended) will be the legal,  valid and
binding  obligation  of such  Person,  in each case  enforceable  against  it in
accordance  with its  respective  terms  subject  to the  effect of  bankruptcy,
insolvency,  reorganization,  moratorium  or other  similar laws  relating to or
affecting the rights of creditors generally and to the effect of the application
of general principles of equity.

     SECTION 5.3 No Conflicts.

     The  execution,  delivery and  performance  by Lessee of this Agreement and
each of the Collateral  Agreements to which it is a party,  and the consummation
of the  transactions  contemplated  by  this  Agreement  and  by the  Collateral
Agreements,  do not and will not with or  without  the  giving  of notice or the
passage of time, or both,  conflict with, or result in a breach or violation of,
or constitute a default under,  or permit the  acceleration of any obligation or
liability in (a) any provision of the Articles of Incorporation, Bylaws or other
organizational  documents of Lessee,  (b) any provision of Law or a Governmental
Approval or (c) any material agreement of Lessee.

     SECTION 5.4 Approvals, Other Authorizations, Consents, Reports, Etc.

     Section  5.4  of the  Lessee  Disclosure  Letter  contains  a  list  of all
Governmental Approvals and other filings, applications or notices required to be
made,  filed,  given or



                                       39



obtained by Lessee or any of its  Affiliates  with, to or from any  Governmental
Authorities  or  other  Persons  in  connection  with  the  consummation  of the
transactions  contemplated by this  Agreement,  except for (a) the filing of any
notification  and report form required  under the HSR Act, (b) those that become
applicable solely as a result of the specific regulatory status of Contributors,
or (c) those  failures  to make,  file,  give or obtain  which do not  adversely
affect or restrict,  or would not reasonably be expected to adversely  affect or
restrict,  Lessee's ability to consummate the transactions  contemplated by this
Agreement.

     SECTION 5.5 Litigation; Orders.

     Except as disclosed in Section 5.5 of the Lessee Disclosure  Letter,  there
is no action, suit or proceeding pending or, to Lessee's  knowledge,  threatened
against  Lessee by or before any  Governmental  Authority or by any Person which
challenges the validity of this Agreement or which would reasonably be likely to
adversely  affect or restrict  Lessee's  ability to consummate the  transactions
contemplated by this Agreement.  To Lessee's knowledge,  there are no Orders and
there are no actions or proceedings by any  Governmental  Authority or any other
Person,  pending or threatened in writing,  that adversely affects or restricts,
or would  reasonably  be  expected to  adversely  affect or  restrict,  Lessee's
ability to consummate the transactions contemplated by this Agreement.

     SECTION 5.6 Brokers, Finders, Etc.

     Lessee has not employed any broker,  finder,  investment  banker,  or other
intermediary  or  incurred  any  liability  for  any  investment  banking  fees,
financial  advisory fees,  brokerage fees,  finders' fees, or other similar fees
for which  Contributors  or Sprint would be responsible  in connection  with the
transactions contemplated by this Agreement or any of the Collateral Agreements.

     SECTION 5.7 SEC Reports.

     Lessee has filed all material forms,  reports and documents,  together with
any required amendments  thereto,  required to be filed by it with the SEC since
January 1, 2003 (collectively,  the "SEC Documents"). The SEC Documents (a) were
prepared,  in all material respects,  in accordance with the requirements of the
Securities Act of 1933, as amended,  or the Securities  Exchange Act of 1934, as
amended,  as the  case  may  be,  and  the  rules  and  regulations  promulgated
thereunder,  and (b) did not at the time  they were  filed  contain  any  untrue
statement  of a material  fact or omit to state a material  fact  required to be
stated in such SEC Documents or necessary in order to make the  statements  made
in such SEC Documents,  in the light of the circumstances  under which they were
made, not misleading.

     SECTION 5.8 Financial Statements

     (a) Lessee has made  available to  Contributors  true and correct copies of
the  audited  consolidated  balance  sheet of Lessee as of  December  31,  2003,
December 31, 2002 and December 31, 2001, the audited consolidated  statements of
income,  shareholders'  equity  and cash  flows of Lessee for each of the fiscal
years then  ended,


                                       40



including the notes thereto, the unaudited consolidated balance sheet of Lessee,
dated  September 30, 2004 (the "Lessee  Interim  Balance  Sheet Date"),  and the
unaudited  consolidated  statements  of income  and cash flows of Lessee for the
nine month period then ended  presented on a basis  consistent with the year end
audited  financial  statements.  All of the foregoing  financial  statements are
collectively referred to in this Agreement as the "Lessee Financial Statements."
Except as disclosed  in Section  5.8(a) of the Lessee  Disclosure  Letter or the
Lessee Financial  Statements,  the Lessee Financial Statements present fairly in
all  material   respects  the  financial   position,   results  of   operations,
shareholders'  equity and cash flows of Lessee on a consolidated basis as of the
dates and for the applicable periods indicated,  in each case in conformity with
GAAP  consistently  applied except as noted in the Lessee Financial  Statements.
The Lessee Financial Statements (including the notes thereto) were prepared from
the books, accounts and financial records of Lessee.

     (b) Except as disclosed in Section 5.8(b) of the Lessee Disclosure  Letter,
since the Lessee Interim  Balance Sheet Date,  Lessee has conducted its business
in the  ordinary  course  and  there  has not  been  any  event,  occurrence  or
development  which  has had or would  reasonably  be  expected  to have a Lessee
Material Adverse Effect.

     SECTION 5.9 Independent Review.

     Lessee  has  conducted  its own  independent  review  and  analysis  of the
Collocation Business and the Sites, their condition, cash flow and prospects and
the Assumed  Liabilities.  In entering this Agreement,  Lessee has relied solely
upon its own investigation and analysis and the  representations  and warranties
contained in this Agreement and the Collateral Agreements, and Lessee:

     (a)  acknowledges  that all materials and  information  requested by Lessee
with respect to the Sites have been provided to Lessee to Lessee's satisfaction;

     (b)  acknowledges  that it has undertaken  such due diligence  (including a
review of the assets, liabilities, books, records and contracts of Contributors)
as Lessee deems adequate;

     (c)  acknowledges  that neither  Contributors  nor any of their  respective
Subsidiaries nor any of their directors, officers, employees, Affiliates, agents
or  representatives  makes any  representation  or warranty,  either  express or
implied as to the accuracy or completeness of any of the information provided or
made available to Lessee or its agents or representatives prior to the execution
of this  Agreement  except  as  expressly  set  forth in this  Agreement  or the
Collateral Agreements; and

     (d)  agrees,   to  the  fullest  extent  permitted  by  Law,  that  neither
Contributors  nor  any  of  their  respective  directors,  officers,  employees,
affiliates,  agents or representatives will have any liability or responsibility
whatsoever to Lessee on any basis  (including in contract or tort, under federal
or state  securities laws or otherwise)  based upon any information  provided or
made  available,  or  statements  made, to Lessee prior to the execution of this
Agreement, except as expressly set forth in this Agreement.


                                       41




     SECTION 5.10 Financial Capability.

     Prior to the date of this  Agreement,  Lessee has delivered to Contributors
(a) written  documentation  evidencing  Lessee's  ability to draw upon available
capacity under existing credit facilities, and/or (b) true, complete and correct
copies of executed  commitment  letters,  in either  case,  to provide to Lessee
financing for the  transactions  contemplated  by this Agreement (the "Financing
Commitments").  As of the date of this Agreement,  the Financing Commitments are
in full force and effect, have not been withdrawn or terminated,  and Lessee has
no  reason  to  believe  that  any  Financing  Commitment  will  not lead to the
financing  contemplated by such Financing  Commitment,  subject to the terms and
conditions contained in such Financing  Commitments.  The financing contemplated
by the Financing  Commitments  constitutes  all of the financing  required to be
provided by Lessee for the consummation of the transactions contemplated by this
Agreement  and the  payments  of all fees and  expenses  incurred  by  Lessee in
connection  therewith.  Subject to the receipt of the funds contemplated by, and
on the terms set forth in, the Financing Commitments, Lessee will have available
as of the Initial  Closing Date funds  sufficient to pay the aggregate  Rent and
Pre-Lease  Rent  payable at the  Initial  Closing and to  discharge  the Assumed
Liabilities.  Lessee knows of no  circumstance  or condition  that is reasonably
likely to  prevent  the  availability  at the  Initial  Closing  of such cash or
availability, except as otherwise provided in the Financing Commitments.

                                   ARTICLE 6
                  COVENANTS OF SPRINT, CONTRIBUTORS AND LESSEE

     SECTION  6.1  Investigation  of Sites Prior to Initial  Closing;  Access to
Properties and Records.

     (a) Prior to the  Initial  Closing,  but subject to  contractual  and legal
restrictions  applicable to Contributors and applicable Law,  Contributors  will
make their personnel  available to  representatives of Lessee and afford to such
representatives  and,  with  respect to the  transactions  contemplated  by this
Agreement and the Financing  Commitments,  advisors and current and  prospective
lenders and investors of Lessee,  reasonable access to their respective offices,
properties,  books and  records,  of and  relating  to the Sites  during  normal
business  hours,  as Lessee may  reasonably  request in its review of the Sites,
such  access  not  to  damage,  or  unreasonably   interfere  with  or  disrupt,
Contributors'  business,  including,  without  limitation,  the operation of the
Sites. In no event will Lessee take or permit any action in its investigation of
any Site which impairs or otherwise interferes with the use and operation of any
active Equipment on or communications  operations being conducted at a Site. All
requests  for  access to the  offices,  properties,  books and  records,  of and
relating  to the  Sites  will be made to a  representative  of  Contributors  as
designated by Contributors from time to time, who will be solely responsible for
coordinating all such requests and all access permitted under this Agreement and
who will have the right to  accompany  Lessee on any actual  inspections.  It is
further  understood and agreed that Contributors will cooperate and consult with
Lessee in  connection  with its due diligence  review of the Sites,  and neither
Lessee  nor  its  representatives  will  contact  any  employees,  customers  or
suppliers of  Contributors or any of their  respective  Affiliates in connection
with the transactions contemplated by this



                                       42



Agreement  or  Lessee's  investigation  of the  Sites,  whether  in person or by
telephone,  mail or other means of  communication,  without the  specific  prior
written  authorization  of  Contributors,   not  to  be  unreasonably  withheld,
conditioned or delayed.  The restrictions and provisions of this clause (a) with
be applicable only prior to the Initial  Closing,  after which the provisions of
the Lease  Agreement will set forth the rights and  obligations  with respect to
access to the Sites.  Lessee will indemnify  Contributors  and their  respective
Affiliates for any claims, losses or causes of action as a result of physical or
tangible damages or injuries caused by, or incurred in connection with, Lessee's
inspection of the Sites prior to the Initial Closing Date; provided, that Lessee
will not indemnify  Contributors or their  respective  Affiliates for any claim,
loss or cause of action caused by (i) the gross negligence or willful misconduct
of any Contributor or such Affiliate or (ii) any physical  condition existing on
any Site  prior  to  Lessee's  or its  agent's  entry  thereon  (except  for any
incremental  damage  caused by Lessee or its  agents  with  respect  to any such
physical condition).

     (b) Prior to the Initial Closing, any information provided to Lessee or its
representatives  pursuant  to this  Agreement  will not be used for any  purpose
unrelated  to  the  consummation  of  the  transactions   contemplated  by  this
Agreement,  and will be held by Lessee  and its  representatives  in  accordance
with, and will be subject to the terms of, Section 6.12.

     (c) Lessee  agrees to (i) hold all of the books and records  received  from
Lessor  relating to the Sites and not to destroy or dispose of any thereof for a
period of ten (10) years from the Initial  Closing Date, and  thereafter,  if it
desires to destroy or dispose of the non-privileged  books and records, to offer
first in  writing,  at least  thirty  (30)  days  prior to such  destruction  or
disposition,   to  surrender  them  to  Lessor,  and  (ii)  afford  Lessor,  its
accountants and legal counsel,  during normal  business  hours,  upon reasonable
request,  reasonable access to such  non-privileged  books and records, to other
data and to the  employees  of Lessee to the  extent  that  such  access  may be
requested  for any  legitimate  purpose,  unless such  non-privileged  books and
records have been disposed of in  accordance  with this Section  6.1(c).  Lessee
will have the same rights,  and Contributors,  Sprint and Lessor,  respectively,
the same obligations, as are set forth above in this Section 6.1(c) with respect
to any  non-privileged  books and records of such Person pertaining to the Sites
(other than  Excluded  Sites and  Strategic  Sites),  with the  exception of Tax
Returns (or portions thereof) relating to Taxes that are not the  responsibility
of Lessee.

     (d)  Contributors  and Sprint agree to cooperate with Lessee and to provide
to Lessee and its  Affiliates,  from time to time, at no  out-of-pocket  cost to
Contributors or Sprint upon reasonable  advance written notice from Lessee,  (i)
access to all financial  and other  information  pertaining to the Sites,  which
information  is  in  Contributors'  or  Sprint's  possession  and  relevant  and
reasonably necessary, in the opinion of Lessee or its Affiliates' outside, third
party accountants  ("Accountants")  to enable Lessee or its Affiliates and their
Accountants  (or at Lessee's  discretion  the  accountants of  Contributors)  to
prepare  financial  statements in  compliance  with any and all of (A) Rule 3-14
(or, if required by applicable authorities,  Rule 3-05) of Regulation S-X of the
SEC, as  applicable  to Lessee or its  Affiliates  (collectively,  the "Required
Financial  Statements");  (B) any other rule issued by the SEC and applicable to
Lessee  or its  Affiliates;  and  (C)



                                       43



any registration statement, report or disclosure statement filed with the SEC by
or on behalf of Lessee or its Affiliates;  and (ii) a representation  letter, in
form  substantially   consistent  with  the  representation  letter  customarily
provided by Sprint to its outside  accountants so long as such form is otherwise
reasonably  satisfactory  to the  Accountants  or else with such  changes as the
Accountants  may  reasonably  require (based on what the  Accountants  otherwise
generally require from clients of the size and caliber of Sprint), signed by the
individual(s)  responsible for Contributors'  financial reporting, as prescribed
by generally accepted auditing  standards  promulgated by the Auditing Standards
Division of the  American  Institute  of  Certified  Public  Accountants,  which
representation  letter may be required by the Accountants in order to render any
opinion or to issue any report concerning Contributors' financial statements for
any date and/or period as of or prior to the Initial Closing Date.  Contributors
will, upon the reasonable  request of Lessee and at no out-of-pocket  expense to
Contributors,  provide  reasonable  assistance  in order to enable Lessee or its
Affiliates to (i) file any documents with the SEC  (including  any  registration
statement or report,  or any amendments  thereto),  (ii) respond to any requests
for information from the SEC, (iii) comply with the  Sarbanes-Oxley  Act of 2002
or (iv) satisfy the New York Stock Exchange's or other applicable stock exchange
listing requirements.

     SECTION 6.2 Efforts to Close; Cooperation.

     (a) Subject to the  provisions of Article 3,  Contributors  and Lessee each
agree to use their  commercially  reasonable efforts to (i) take, or cause to be
taken, all actions and to do, or cause to be done, all things necessary,  proper
or advisable to consummate  and make  effective as promptly as  practicable  the
transactions  contemplated by this Agreement, and to cooperate with the other in
connection  with the  foregoing,  and (ii) refrain  from taking,  or cause to be
refrained  from  taking,  any action and to refrain  from doing or causing to be
done,  anything  which  would  reasonably  be  expected  to impede or impair the
consummation  and  the  making  effective  as  promptly  as  practicable  of the
transactions  contemplated  by  this  Agreement,  including  using  commercially
reasonable efforts to (A) obtain all necessary waivers,  consents,  releases and
approvals  that  are  required  for  the   consummation   of  the   transactions
contemplated  by  this  Agreement,  (B)  obtain  all  consents,   approvals  and
authorizations that are required by this Agreement to be obtained under any Law,
(C) lift or rescind any injunction or restraining order or other order adversely
affecting the ability of the parties to consummate the transactions contemplated
by  this  Agreement,   (D)  effect  all  necessary  registrations  and  filings,
including,  but not limited to, filings and submissions of information requested
or required by any Governmental Authority,  including,  without limitation,  any
Governmental  Antitrust  Authority,  and  (E)  fulfill  all  conditions  to this
Agreement.  Contributors and Lessee further covenant and agree,  with respect to
any threatened or pending  preliminary  or permanent  injunction or other order,
decree or ruling or statute,  rule,  regulation  or  executive  order that would
adversely  affect the  ability of the  parties to  consummate  the  transactions
contemplated by this Agreement,  to use their respective commercially reasonable
efforts to prevent the entry, enactment or promulgation thereof, as the case may
be. In no event, however, will Contributors or Lessee or any of their respective
Affiliates  be  obligated  to divest or hold  separate any business or assets in
connection  with  the  consummation  of the  transactions  contemplated  by this
Agreement or to pay any money to any Person or to offer or grant other financial
or other  accommodations  to any


                                       44




Person in connection  with its  obligations  under this Section 6.2,  other than
with  respect to any  payments  required  to be made in  connection  with Shared
Ground Lease  Payments in a Ground Lease as set forth in this  Agreement and the
Lease Agreement. In addition,  notwithstanding  anything to the contrary in this
Section 6.2 or  otherwise,  nothing in this  Agreement  will prevent or restrict
Lessee or  Contributors or any of their  respective  Affiliates from engaging in
any merger, acquisition or business combination transaction,  or any disposition
of any assets,  other than a disposition to a Person other than Lessee of Leased
Property,  or any other  corporate  transaction  except,  in each case, as would
prevent the consummation of the transactions  contemplated by this Agreement and
the Collateral Agreements.

     (b)  Contributors  and Lessee  will keep the other  party  apprised  of the
status of matters relating to the completion of the transactions contemplated by
this Agreement and work cooperatively in connection with obtaining the requisite
Governmental  Approvals  of any  Governmental  Antitrust  Authority,  including,
without limitation,  by: (i) cooperating with the other party in connection with
filings under the Antitrust Laws, including,  with respect to the party making a
filing,  (A) by providing  copies of all such documents to the non-filing  party
and its advisors prior to filing (other than documents  containing  confidential
business  information),  and (B) if requested,  by considering in good faith all
reasonable additions, deletions or changes suggested in connection with any such
filing;  (ii)  furnishing  to the other party all  information  required for any
application  or  other  filing  to be  made  pursuant  to any  Antitrust  Law in
connection with the transactions contemplated by this Agreement;  (iii) promptly
notifying the other party of, and if in writing  furnishing the other party with
copies of, any communications from or with any Governmental  Antitrust Authority
with respect to the transactions contemplated by this Agreement; (iv) permitting
the other party to review in advance and  considering in good faith the views of
the  other  party  in  connection  with  any  proposed  communication  with  any
Governmental  Antitrust  Authority  in  connection  with  proceedings  under  or
relating to any  Antitrust  Law, to the extent not  prohibited  by Law;  (v) not
agreeing to  participate  in any  meeting or  discussion  with any  Governmental
Antitrust  Authority in  connection  with  proceedings  under or relating to any
Antitrust  Law unless it consults  with the other party in advance to the extent
not  prohibited  by Law,  and,  to the  extent  permitted  by such  Governmental
Antitrust  Authority,  gives  the  other  party the  opportunity  to attend  and
participate;  and  (vi)  consulting  and  cooperating  with the  other  party in
connection with any analyses,  appearances,  presentations,  memoranda,  briefs,
arguments, opinions and proposals made or submitted by or on behalf of any party
in connection with proceedings under or relating to any Antitrust Law. If either
party or any Affiliate thereof receives a request for additional  information or
documentary material from any such Governmental Antitrust Authority with respect
to the  transactions  contemplated  by this  Agreement,  then  such  party  will
endeavor in good faith to make, or cause to be made, as soon as practicable  and
after  consultation with the other party, an appropriate  response in compliance
with such request. Each party will advise the other party promptly in respect of
any  understandings,  undertakings  or agreements  (oral or written)  which such
party proposes to make or enter into with any Governmental  Antitrust  Authority
in connection with the transactions contemplated by this Agreement.

     SECTION 6.3 Further Assurances.


                                       45





     Contributors and Lessee agree that, from time to time,  whether before,  at
or after the applicable Closing Date, each of them will execute and deliver such
further  instruments of conveyance and assignment and take such other actions as
may be necessary to carry out the purposes and intents of this Agreement and the
transactions  contemplated  by this Agreement.  Without  limiting the foregoing,
Sprint and Contributors acknowledge that in connection with the Closings and its
financings of the Sites,  Lessee may require legal opinions (or updates  thereof
or reliance letters or similar items with respect thereto) from its counsel,  at
Lessee's  expense,  with  respect to certain  bankruptcy-related  matters and in
connection  therewith Sprint and  Contributors'  will, and will cause Lessor to,
cooperate  (whether before,  at or after the applicable  Closing Date) in taking
such actions as may be  reasonably  required to give such opinions as Lessee may
reasonably request and to provide customary  undertakings,  representations  and
certificates  (including  without  limitation,  as corporate  structure  charts,
certifications  that the  requirements of the LLC Agreement will be, and have at
all times been, complied with), such cooperation and provision at the expense of
Contributors  prior to the Final  Termination  Date and  thereafter  at Lessee's
expense.

     SECTION 6.4 Conduct of Collocation Business and the Sites.

     From the date of this Agreement and until the Initial Closing and except as
contemplated  by this Agreement or set forth in Section 6.4 of the  Contributors
Disclosure  Letter,  Contributors will operate the Collocation  Business and the
Sites in the ordinary  course of business  consistent with past practice and, at
their expense, will use commercially  reasonable efforts in accordance with past
practice to (i) resolve Liabilities  relating to (A) Liens (other than Permitted
Encumbrances)  on  interests  of a  Contributor  or (B) the  Sites  prior to the
Initial  Closing Date; (ii) to resolve the  condemnation or rezoning  procedures
described on Section 4.3(a) of Contributors  Disclosure  Letter (and Lessee will
be entitled to any proceeds  with respect to such  proceedings  (other than with
respect to Excluded  Sites or Strategic  Sites) after the date of this Agreement
unless such Site becomes an Excluded Site or a Strategic Site hereunder);  (iii)
complete and close out the  non-operational  sites  listed on Section  4.4(c) of
Contributor's  Disclosure  Letter;  and  (iv)  locate  the  missing  Collocation
Agreements listed on Section 4.5 of Contributor's Disclosure Letter (and deliver
copies of any  Collocation  Agreements  so located to Lessee).  From the date of
this  Agreement  and until the  Initial  Closing  (or the  applicable  Technical
Closing  with  respect to Pre-Lease  Sites) and except as  contemplated  by this
Agreement  or set forth in Section 6.4 of the  Contributors  Disclosure  Letter,
Contributors  and their  respective  Affiliates will not, without the consent of
Lessee (which consent will not be unreasonably withheld or delayed):

     (a) (i) sell,  dispose of, transfer,  lease or encumber the Leased Property
of any of the Sites, other than (x) Permitted  Encumbrances  incurred or entered
into in the ordinary course of business  consistent  with past practice,  or (y)
conveyances  that are  immaterial  with  respect to the Leased  Property  of the
affected Site, (ii) except in the ordinary  course of business,  consistent with
past practice,  enter into,  modify,  accelerate,  amend, or grant any waiver or
release under any Material Agreement,  including any Collocation  Agreement (but
in no event terminate or cancel any Material Agreement,  or modify,  accelerate,
amend or grant  any  waiver or  release  with  respect  to any  revenue  sharing
provisions  in  such  agreements  without  the  consent  of  Lessee),  or  (iii)
accelerate



                                       46



or delay collection of accounts  receivable or payment of any account payable in
advance of or beyond  their  regular  due dates or the dates when the same would
have been  collected or paid, as  applicable,  except in the ordinary  course of
business consistent with past practice;  provided that Contributors will provide
prompt notice to Lessee of any such action described in this clause (a);

     (b) agree, so as to legally bind Lessee whether in writing or otherwise, to
take any of the actions set forth in Section 6.4(a) and not otherwise  permitted
by this Agreement.

     Notwithstanding  the  provisions  of  this  Section  6.4,  nothing  in this
Agreement will be construed or interpreted to prevent Contributors in their sole
discretion  from  (i)  engaging  in  any  activity  with  respect  to any of its
businesses  other than the  Collocation  Business,  (ii)  taking any action with
respect  to the  Leased  Property  of any Sites  contemplated  under  Article 3,
including,  without  limitation,  designating a Site as an Excluded Site,  (iii)
removing  Excluded  Assets or Excluded  Equipment  from  Leased  Property of the
Sites,  or (iv) taking any action with respect to any Excluded Site or Strategic
Site.

     SECTION 6.5 Public Announcements.

     Except as otherwise  agreed to by the  parties,  the parties will not issue
any report,  statement or press release or otherwise make any public  statements
with  respect  to this  Agreement  and  the  transactions  contemplated  by this
Agreement,  except as in the reasonable judgment of a party that may be required
by Law or by the rules of a  national  securities  exchange,  and in any event a
party will use its reasonable  best efforts to consult with the other party at a
reasonable time in advance of such required disclosure.  Within four (4) days of
the date  hereof,  Sprint shall file with the SEC a form 8-K  attaching  thereto
this Agreement and the form of Lease Agreement.

     SECTION 6.6 Corporate Names.

     (a) Lessee  acknowledges  that Sprint,  Contributors  and their  respective
Affiliates  have,  and  will at all  times  have,  the  absolute  and  exclusive
proprietary  right  to  all  Names  incorporating   "Sprint"  by  itself  or  in
combination with any other Name,  including,  without limitation,  the corporate
design logo  associated  with  "Sprint",  and that none of the rights thereto or
goodwill  represented  thereby  or  pertaining  thereto  are  being  Leased,  or
otherwise  assigned or  transferred,  hereby or in connection  herewith.  Lessee
agrees that it will not,  nor will it permit any of its  Affiliates  to, use any
Name, phrase or logo incorporating  "Sprint" or such corporate design logo in or
on any of its literature,  sales materials,  agreements or products or otherwise
in  connection  with the sale of any products or services or in the operation of
the Sites.

     (b) Sprint and  Contributors  acknowledge  that  Lessee and its  Affiliates
have, and will at all times have, the absolute and exclusive  proprietary  right
to all Names incorporating  "Global Signal" by itself or in combination with any
other Name, including,  without limitation, the corporate design logo associated
with  "Global  Signal",  and  that  none  of  the  rights  thereto  or  goodwill
represented  thereby  or  pertaining  thereto  are being



                                       47



Leased, or otherwise assigned or transferred,  hereby or in connection herewith.
Lessee  agrees  that it will  not,  nor will it  permit  any of its  Affiliates,
including Lessor, to, use any Name, phrase or logo incorporating "Global Signal"
or such corporate  design logo in or on any of its literature,  sales materials,
agreements or products or otherwise in connection  with the sale of any products
or services or in the operation of the Sites.

     SECTION 6.7 Actions by Lessee, Sprint and Contributors Subsidiaries.

     Lessee,  Sprint  and  each  Contributor  will  ensure  that  each of  their
respective  Subsidiaries (if any) take all actions necessary to be taken by such
Subsidiary  in  order  to  fulfill  Lessee's,  Sprint's  or  such  Contributor's
respective obligations under this Agreement.

     SECTION 6.8 Environmental Matters.

     (a) Lessee may  commission,  at Lessee's cost and expense,  Phase I (and if
permitted under the applicable Ground Lease,  Phase II) environmental  audits of
all Sites.  Contributors  have heretofore made available and furnished to Lessee
true,  correct  and  complete  copies of all Phase I and Phase II  environmental
assessments (including attachments,  appendices, exhibits and schedules) and all
other documents related to environmental matters,  including without limitation,
notices  of  violations,   claims  and   correspondence   with  consultants  and
Governmental Authorities of the Sites that Contributors have been able to locate
as of the date of this  Agreement  using their good faith  efforts.  Lessee will
indemnify  Contributors  and  Lessor  and their  respective  Affiliates  for any
claims,  losses or causes of action as a result of physical or tangible  damages
or injuries caused by, or incurred in connection with, Lessee's Phase I or Phase
II environmental  audits of any Site;  provided,  that Lessee will not indemnify
Contributors  or their  respective  Affiliates  for any claim,  loss or cause of
action  caused  by  (i)  the  gross  negligence  or  willful  misconduct  of any
Contributor  or such  Affiliate or (ii) any physical  condition  existing on any
Site prior to Lessee's or its agent's entry thereon  (except for any incremental
damage  caused  by  Lessee  or its  agents  with  respect  to any such  physical
condition).

     (b) Lessee will  promptly  provide (at  Lessee's  sole cost and expense) to
Contributors  and Lessor (i) the results of any and all  environmental  sampling
and  other  analytical  testing  that  may be  conducted  and  (ii)  any and all
environmental  reports (including the results of the aforementioned Phase I and,
if  applicable,  Phase II  reports)  generated  by  Lessee  as a result of these
studies.  Unless  otherwise  required by applicable Law, neither any reports nor
any information contained in said reports or otherwise generated by Lessee under
this  Agreement,  will be released to any other party  without the prior written
consent of Lessee, Lessor and Contributors, except that either Lessee, Lessor or
Contributors may release such reports to their respective  Representatives or in
connection  with any  merger  or other  corporate  transaction  of Lessee or any
Contributor,  or  disposition  of assets,  that  includes the Sites to which the
reports  apply  (or  Liability  with  respect  thereto).  If this  Agreement  is
terminated  pursuant to Section  10.1 or if any Site  becomes an Excluded  Site,
Lessee will if  requested  by  Contributors  (x) turn over to  Contributors  (at
Contributors'  cost)  all  reports,  documents,  data  and  other  writings  and
information,  including  copies and, if available,  electronic  format  thereof,
relating to any




                                       48



and all  investigations  or studies  conducted  with  respect  to  environmental
conditions  or  compliance  associated  with  such  (or  all,  in the  event  of
termination  of this  Agreement)  Sites,  and  such  reports,  documents  and/or
writings  will become the  exclusive  property of  Contributors,  provided  that
Contributors  may not rely  thereon  and  Lessee  will  have no  obligations  or
liability  with  respect  thereto,   or  (y)  destroy  such   documentation  and
information in accordance with Section 6.12(d).

     SECTION 6.9 Title Insurance Commitments.

     If Lessee elects to purchase title insurance for a Site,  Contributors  and
Lessee  will work  together  and  cooperate  in order to obtain  and cause to be
delivered to Lessee (for Lessee's use for purposes of obtaining title insurance)
as promptly as  practicable  following  execution of this  Agreement,  copies of
commitments  (and will  provide  non-privileged  copies (or  electronic  access)
thereof to Contributors or Lessor) to issue leasehold and/or  leasehold  lenders
title insurance  policies ("Title  Commitments")  for each such Site as to which
any Contributor has an insurable real property interest ("Insurable Sites"). The
costs of obtaining the Title  Commitments and title insurance  policies pursuant
to the Title  Commitments (the "Title Policies") will be borne by Lessee (except
as provided in Section 3.3(b)(ii)),  and at the Closings,  Lessee will reimburse
Contributors for any out-of-pocket  costs related thereto that were incurred and
paid by Contributors at the request of Lessee.  If, prior to the Initial Closing
or Technical  Closing,  as the case may be,  relating to any Insurable  Site for
which a Title Commitment will have been issued,  Lessee will be unable to obtain
a Title Policy (or a marked Title  Commitment)  insuring its interest and/or the
interest of its lender in such Site  (subject  only to  Permitted  Encumbrances)
notwithstanding Lessee's having exercised its commercially reasonable efforts to
do so,  then,  provided  that  Lessee will  continue  to  exercise  commercially
reasonable  efforts to obtain such Title Policy (or a marked Title  Commitment),
Lessee will have the right to treat such as a Pre-Lease  Site.  At each  Closing
Lessor or  Contributors,  as  applicable,  will  deliver to Title  Company  such
documents   including   Property  Tax  forms  and  any  other  certificates  and
documentation as may be reasonably and customarily required by the Title Company
for  issuance of owners' and  lenders'  policies of  leasehold  title  insurance
(subject  only to Permitted  Encumbrances)  in favor of Lessee  and/or  Lessee's
lenders.

SECTION 6.10      Other Documentation.

     Prior to the Initial Closing, Contributors will use commercially reasonable
efforts to deliver or cause to be  delivered to Lessee (a) copies of all written
(and effective) Ground Leases,  Collocation Agreements and material Governmental
Approvals  solely  related to the Leased  Property  or, to the extent not solely
related,  appropriate extracts thereof, and (b) copies of, or extracts from, all
current  files and  records of  Contributors  solely  related to the  ownership,
occupancy  or  leasing of the  Leased  Property  or, to the extent not so solely
related, appropriate extracts thereof; provided, that (i) the failure to deliver
any of the foregoing that is not located by Contributors  after using good faith
efforts  to do so will  not be  considered  a  breach  of this  Agreement,  (ii)
Contributors will not be required to deliver to Lessee any privileged  document,
and (iii)  Contributors  will cooperate with Lessee in delivering such documents
in  electronic  form in a manner to allow  integration  and  compatibility  with
Lessee's systems.


                                       49




     SECTION 6.11 Master Collocation Agreements

     The parties acknowledge that certain Collocation  Agreements permit a Tower
Subtenant to occupy space  (including  on a Tower) at more than one Site (each a
"Master  Collocation  Agreement").  At the Initial  Closing  and each  Technical
Closing in which the Leased  Property of a Master Lease Site subject to a Master
Collocation  Agreement  is Leased to Lessee and in which the Leased  Property of
some of the Sites applicable to such Master Collocation Agreement is retained by
Contributors  or Lessor,  to the extent  permitted  under the applicable  Master
Collocation  Agreement  or  consented  to by the  applicable  counterparty,  the
applicable  Master  Collocation  Agreement will be bifurcated  into two separate
Master Collocation Agreements,  the first applicable to the Sites subject to the
existing  Master  Collocation  Agreement  that are retained by  Contributors  or
Lessor at the  applicable  Closing  (under which the  applicable  Contributor or
Lessor will remain the lessor)  and the second  applicable  to the Master  Lease
Sites subject to the existing  Master  Collocation  Agreement that are Leased to
Lessee at the applicable Closing (under which Lessee will be the lessor). To the
extent practicable,  when requesting consent to a bifurcation,  the parties will
also  request  consent  to a  future  further  bifurcation  of any  such  Master
Collocation  Agreement  such that  further  severance  thereof  is  possible  in
connection  with any  post-closing  conversion  of a Pre-Lease  Site to a Master
Lease  Site as well as a future  assignment  (in  whole  or  part)  of  Lessee's
interests  under the Lease  Agreement in  connection  with a financing.  Lessee,
Lessor and  Contributors  will  cooperate and each use  commercially  reasonable
efforts to effectuate the terms of this Section 6.11.

     SECTION 6.12 Confidentiality.

     (a)  The  parties  acknowledge  and  agree  that  in the  course  of  their
discussions and negotiations of this Agreement and the transactions contemplated
by this  Agreement,  a party to this  Agreement  (the  "Disclosing  Party")  may
already have disclosed or may hereafter  disclose  Confidential  Information (as
defined  below) to one or more of the other parties to this  Agreement  (each, a
"Disclosee").  Each party agrees that if the  transactions  contemplated by this
Agreement are not consummated, it will either return to the Disclosing Party all
written  Confidential  Information  furnished to it or destroy such Confidential
Information.  Each party further agrees to maintain the  confidentiality  of any
and all Confidential  Information of a Disclosing Party and not disclose or give
any Confidential  Information to any Person or use such Confidential Information
for any purpose  unrelated to the consummation of the transactions  contemplated
by this Agreement and the Collateral  Agreements;  provided,  that the foregoing
will not prohibit (i) use of such Confidential Information (A) as is required by
Law,  (B) as is  necessary  to prepare  Tax  Returns  (including  Tax Returns of
Lessee,  Contributors,  Lessor or their respective  Affiliates) or other filings
with  Governmental  Authorities  or to defend or object to any  reassessment  of
Taxes, (C) as is necessary for Lessee, Contributors,  Lessor or their respective
Affiliates  (or  their  representatives)  to  prepare  and  disclose,  as may be
required,  accounting  statements  or (D) to assert  or  protect  any  rights of
Lessee, Sprint,  Contributors,  Lessor or their respective Affiliates under this
Agreement or under any applicable Law or (ii) disclosing to any and all Persons,
without limitation of any kind, the U.S. federal and state tax treatment and tax
structure  (tax  structure  will  mean  any  fact  that  may  be  applicable  to
understanding  the U.S.  federal  or state  tax  treatment  of the



                                       50




transaction)  contemplated  hereby  and all  materials  of any  kind  (including
opinions  or other  tax  analyses)  that  are  provided  to  Lessee,  Sprint  or
Contributors or their respective  Affiliates  relating to such tax treatment and
tax structure  provided that no  information  will be disclosed that could waive
the attorney-client  privilege, the privilege under Section 7525 of the Internal
Revenue  Code,  or other  privileges.  Without  limiting the  generality  of the
foregoing,  each party agrees that, when acting as a Disclosee,  it may disclose
the  Confidential  Information  of the  Disclosing  Party  to  those  employees,
attorneys,  accountants,   consultants,  bankers,  financial  advisers  and  any
representatives of such advisers (collectively,  "Representatives") of Disclosee
who require such information for the purposes contemplated under this Agreement;
provided,   that  it  must  (i)  notify  all  of  its  Representatives  to  whom
Confidential  Information  of the  Disclosing  Party is disclosed  not to use or
disclose such  Confidential  Information  in violation of this  Agreement,  (ii)
prevent use or disclosure by its Representatives of the Confidential Information
of the  Disclosing  Party,  except as provided in this  Agreement,  and (iii) if
requested or required by Law to disclose any Confidential  Information,  provide
the  Disclosing  Party with prompt written notice of such request or requirement
so that the  Disclosing  Party may seek an  appropriate  protective  order.  If,
failing the entry of a protective order, the Disclosee is, in the opinion of its
counsel,  required to disclose  Confidential  Information,  it may disclose that
portion of the  Confidential  Information  that its counsel  advises  that it is
required to disclose and will exercise  reasonable  efforts to obtain  assurance
that confidential treatment will be accorded to that portion of the Confidential
Information that is being disclosed. In any event, the Disclosee will not oppose
action by the  Disclosing  Party to obtain an  appropriate  protective  order or
other  reliable  assurance  that  confidential  treatment  will be accorded  the
Confidential Information.

     (b) For purposes of this Section 6.12, "Confidential Information" means any
and all  technical,  business  and other  information  regarding  the  business,
finances,  operations,  products,  services  and  customers  of a party  and its
Affiliates, whether in written electronic, oral or any other form, which derives
value  from  not  being  generally  known  to  the  public,  including,  without
limitation,  technical or nontechnical  data,  compositions,  devices,  methods,
techniques,  drawings,  inventions,  processes, financial data, financial plans,
product plans, lists or information  concerning actual or potential customers or
suppliers,  information  regarding  business plans and  operations,  methods and
plans of operation,  marketing strategies,  and acquisition and investment plans
together with the analyses, compilations, studies or other documents prepared by
the  Disclosee  using  such  information;   provided,  however,  that  the  term
"Confidential  Information" will not include any information that (i) was in the
possession   of  or  known  to  the   Disclosee   without  any   obligation   of
confidentiality  prior to receiving the information  from the Disclosing  Party,
(ii) is, or subsequently  becomes,  legally and publicly available other than by
breach  of this  Agreement,  (iii) is  obtained  by the  Disclosee  without  any
obligation of confidentiality  from a source other than the Disclosing Party and
the applicable source is not in breach of an obligation of confidentiality  owed
to the  Disclosing  Party or to any other party,  or (iv) is developed by or for
the non-disclosing party without the use of Confidential Information.

     (c) Lessee acknowledges and agrees that the databases  respecting the Sites
maintained on behalf of Contributors are owned by Contributors may contain trade


                                       51




secrets of  Contributors.  Any data from such  databases  provided to Lessee may
only  be used  by  Lessee  in  accordance  with  the  terms  of this  Agreement,
including, without limitation, this Section 6.12.

     (d) Each party  agrees that if this  Agreement is  terminated  prior to the
Initial Closing, then within fifteen (15) business days after being so requested
by the  Disclosing  Party,  the Disclosee will return or destroy (at its option)
all documents thereof  furnished by the Disclosing  Party.  Except to the extent
the Disclosee is advised by counsel such  destruction  is prohibited by Law, the
Disclosee  will also destroy all written  material,  memoranda,  notes,  copies,
excerpts and other writings or recordings  whatsoever in its possession prepared
by it or its Representatives  based upon, containing or otherwise reflecting any
Confidential  Information.  Any  destruction  of materials  will be confirmed in
writing by the Disclosee.  Any Confidential  Information that is not returned or
destroyed,  including,  without limitation,  any oral Confidential  Information,
will remain subject to the confidentiality obligations set forth in this Section
6.12.  Notwithstanding the foregoing, (i) Lessee will not be required to destroy
or return any  Confidential  Information  related to any Leased Property of each
Site converted  into a Master Lease Site at a Closing  following such Closing or
to any Pre-Lease Site, (ii) following any Closing  hereunder,  Contributors  and
Sprint  will be deemed to be the  Disclosee  and Lessee will be deemed to be the
Disclosing  Party with respect to all  Confidential  Information  included in or
related to the Leased  Property of each Site  converted into a Master Lease Site
at each  applicable  Closing and to each  Pre-Lease  Site for all purposes under
this  Agreement  and (iii) the Disclosee may retain one (1) archival copy of the
Disclosing  Party's  Confidential  Information solely for the purpose of use, to
the extent necessary,  in the prosecution or defense of any litigation,  dispute
resolution,  arbitration,  mediation or as may be necessary,  in the  reasonable
discretion  of the  Disclosee,  for  the  reason  of  resolving  any  threatened
litigation, dispute resolution, arbitration or mediation or other dispute.

     (e)  Effective  as of the  date  of  this  Agreement,  the  Confidentiality
Agreement and the Sprint Confidentiality  Agreement will terminate automatically
and will be of no further force or effect,  except as expressly  provided in the
Confidentiality Agreement or the Sprint Confidentiality Agreement, respectively.

     (f) Nothing  contained  in this Section 6.12 will be deemed to prohibit (i)
any disclosure  deemed by Lessee to be necessary or desirable in connection with
curing or addressing any Exceptions or obtaining  Ground Lessor  Estoppels prior
to the Initial Closing Date or (ii) from and after the Initial Closing,  any use
or disclosure of information relating to this Agreement, the Sites or the Leased
Property  as Lessee may deem  necessary  or  desirable  in  connection  with the
operation of its  business  and the Sites  (including,  without  limitation,  in
connection  with any  financing),  except,  in each case,  with respect to those
matters  that Sprint  reasonably  has  informed  Lessee  constitute  Sprint's or
Contributors'  trade secrets (as defined by applicable  Law),  provided that any
information  related to the conduct or operation of the Collocation  Business or
the Sites will not constitute such trade secrets.

     SECTION 6.13 Lessee's Efforts.


                                       52





     (a) Lessee will promptly notify  Contributors of any proposal by any of the
institutions  party to a Financing  Commitment to withdraw,  terminate or make a
material  change in the amount or terms of such Financing  Commitment that could
reasonably  be expected to adversely  affect the ability of Lessee to consummate
the financing  contemplated by such Financing  Commitment in accordance with its
terms. In addition,  upon Contributors'  reasonable request,  Lessee will advise
and  update  Contributors,  in a level  of  detail  reasonably  satisfactory  to
Contributors,  with respect to the status,  proposed  closing date, and material
terms of the Financing  Commitments.  Lessee will not consent to any  amendment,
modification  or  early  termination  of any  Financing  Commitment  that  could
reasonably  be expected to adversely  affect the ability of Lessee to consummate
the transactions contemplated by this Agreement.

     (b)  Lessee  will,  and will  cause its  Affiliates  to,  use  commercially
reasonable   efforts  to  (i)  maintain  the   effectiveness  of  the  Financing
Commitments in accordance with their terms and obtain  alternative  financing if
necessary to consummate the  transactions  contemplated by this Agreement,  (ii)
enter into definitive  documentation with respect to the Financing  Commitments,
or  any  alternative   financing   necessary  to  consummate  the   transactions
contemplated  by this  Agreement,  (iii)  satisfy all funding  conditions to the
Financing  Commitments or any alternative  financing set forth in the definitive
documentation  with  respect  to the  financing  contemplated  by the  Financing
Commitments,  or alternative  financing necessary to consummate the transactions
contemplated  by this Agreement,  (iv) consummate the financing  contemplated by
the Financing  Commitments  (including by extension of the Financing Commitments
on  substantially  equivalent or better terms) or, if the Financing  Commitments
expire,  obtaining  alternative financing in an aggregate principal amount equal
to the amounts set forth in, and on terms substantially  equivalent to or better
than the terms of, the Financing Commitments.

     SECTION 6.14 Employee Matters.

     (a) At any time prior to the Initial  Closing,  Lessee may, or may cause an
Affiliate  to,  make  offers of  employment  to be  effective  as of the Initial
Closing to all or certain  employees of the Collocation  Business (each employee
who accepts  Lessee's  offer will be referred to as a  "Transferred  Employee");
provided,  that Lessee and its  Affiliates  will have no  obligation to make any
such offers.  If made, such offer(s) will include for each Transferred  Employee
(i) benefits under Lessee's  401(k) Plan and benefit  accruals for service after
the Initial  Closing  under  Lessee's  Pension Plan which are the same  benefits
Lessee  provides  for its  employees  who work in  Lessee's  business,  and (ii)
welfare  benefits  under  Lessee's  welfare plans (as defined in Section 3(1) of
ERISA),  which are the same to the  maximum  extent  practicable  as the welfare
benefits Lessee provides for its similarly situated employees.

     (b) 401(k) Plans.

          (i) Contributors will make  contributions on behalf of the Transferred
     Employees  to the  Contributors  Benefit  Plan  which  is the  Contributors
     Retirement Savings Plan (the "Retirement Savings Plan") through the Initial
     Closing, but Contributors will take such action as necessary or appropriate
     to


                                       53




     assure  that no  Transferred  Employee  will be eligible to make or receive
     contributions  under  such plan for any  period  ending  after the  Initial
     Closing and that no  Transferred  Employee  will be  eligible to  otherwise
     actively  participate in such plan after the Initial Closing.  Contributors
     will take whatever action is necessary or appropriate  with respect to each
     Transferred  Employee to provide the same  opportunity  to each  applicable
     Transferred  Employee to repay his or her loan or loans,  if any,  from the
     applicable  plan as currently  provided  under the terms of the  Retirement
     Savings Plan upon a termination of employment.

          (ii) The  Transferred  Employees  will be  eligible  as of the Initial
     Closing to  participate  in a plan  established,  maintained  or adopted by
     Lessee or the applicable  Affiliate which is described in Section 401(k) of
     the Code  (individually  a "Lessee 401(k) Plan") and which will provide for
     elective deferrals (as the deferrals are described in Section  402(g)(3)(A)
     of the  Code) by  participants  under  Section  401(k)  of the Code and for
     matching  contributions  (as described in Section  401(m)(4)(A)(ii)  of the
     Code) by Lessee or such Affiliate  with respect to the elective  deferrals.
     The Lessee  401(k) Plan will provide that the  Transferred  Employees  will
     have the right to make direct  rollovers  to the  applicable  plan of their
     vested  accounts  in  the  Retirement  Savings  Plan  to the  extent  those
     rollovers constitute "eligible rollover  distributions"  within the meaning
     of Section  402(c)(4) of the Code. The  Transferred  Employees will receive
     credit under the Lessee 401(k) Plan for all service with  Contributors  for
     purposes  of  satisfying  any service  requirement  to  participate  in the
     applicable  plan  and any  service  requirement  to  earn a  nonforfeitable
     benefit under the applicable plan.

          (c) Pension Plans.

          (i) Contributors  will take such action as necessary or appropriate to
     assure that  Transferred  Employees will be eligible to accrue any benefits
     for service  completed or compensation  paid for periods before the Initial
     Closing  under the  Contributors  Benefit  Plan  which is the  Contributors
     Retirement  Pension  Plan  (the  "Retirement  Pension  Plan")  and  that no
     Transferred  Employee will be eligible to otherwise actively participate in
     the applicable plan after the Initial Closing.

          (ii) If any employees of Lessee (as determined in accordance  with the
     rules under Section 414(b) and Section  414(c) of the Code)  participate in
     any defined  benefit plan (as defined in Section  414(j) of the Code) other
     than a  multiemployer  plan (as  defined  in  Section  414(f)  of the Code)
     (individually a "Lessee Pension Plan"),  the Transferred  Employees will be
     eligible to participate in the applicable  plan as of the Initial  Closing.
     If there is more than one Lessee  Pension Plan, the  Transferred  Employees
     will be  eligible  to  participate  in the  Lessee  Pension  Plan  which in
     Lessee's  reasonable  judgment provides benefits which in the aggregate are
     more like the benefits provided under the Retirement  Pension Plan than the
     benefits  provided  under any other Lessee  Pension Plan.  The  Transferred
     Employees  will receive  credit under the Lessee  Pension Plan in which the
     Transferred  Employees  participate for all service with



                                       54



     Contributors  for  purposes  of  satisfying  any  service   requirement  to
     participate  in the applicable  plan and any service  requirement to earn a
     nonforfeitable  benefit under the applicable  plan, but Lessee will have no
     obligation  to  provide  the  applicable  service  credit for  purposes  of
     computing any Transferred  Employee's  accrued benefit under the applicable
     plan.

     (d) Medical and Related Healthcare Benefits and Life Insurance.

          (i)  Contributors  will  continue  after the  Initial  Closing to make
     available to each  Transferred  Employee  coverage  under the  Contributors
     Benefit  Plans  which are  welfare  plans (as  defined in  Section  3(1) of
     ERISA),  including  post-retirement  health and dental benefit coverage, to
     the same  extent,  and subject to the same terms and  conditions,  that the
     coverage would be continued under the terms of the applicable plans for any
     other  former  employee,  and  each  applicable  Transferred  Employee  who
     satisfies the age and service  requirements for post-retirement  health and
     dental benefit coverage  immediately prior to the Initial Closing will have
     the same  opportunity to receive  coverage after the Initial  Closing as if
     the applicable  Transferred Employee had terminated employment  immediately
     prior to the Initial Closing.

          (ii)  Lessee  on  the  Initial  Closing  will  make  available  to the
     Transferred Employees Lessee's welfare plans (as defined in Section 3(1) of
     ERISA)  consistent with the requirements of Section  6.14(a)(ii),  and each
     Transferred  Employee will receive full credit under Lessee's welfare plans
     for all service  completed with  Contributors;  provided,  that Lessee will
     have no obligation to provide  service  credit for purposes of  determining
     any   applicable    Transferred    Employee's    eligibility   to   receive
     post-retirement welfare benefits.

     SECTION 6.15 2004 Audited Financials; Unaudited Stub Period Financials.

     On or prior to March 31, 2005,  regardless  of whether the Initial  Closing
will have  theretofore  occurred,  Contributors  will deliver to Lessee true and
correct copies of the audited consolidated statements of operations of the Sites
for the fiscal  year ended  December  31,  2004,  including  the notes  thereto,
prepared  in  compliance  with  Rule  3-14  of  Regulation  S-X of the  SEC,  as
applicable  to  Lessee  or  its  Affiliates.  All  of  the  foregoing  financial
statements are collectively referred to in this Agreement as the "2004 Financial
Statements."  Except as disclosed  in the 2004  Financial  Statements,  the 2004
Financial Statements will present fairly in all material respects the results of
operations  of the  Sites on a  consolidated  basis for the  applicable  periods
indicated,  in each case in conformity with GAAP consistently  applied except as
noted in the 2004 Financial Statements. The 2004 Financial Statements (including
the notes  thereto)  will be prepared  from the books,  accounts  and  financial
records of  Contributors.  As soon as practicable upon request of Lessee (but in
any  event  within  forty  (40)  days  after  the end of each  fiscal  quarter),
Contributors  will  deliver  to  Lessee  unaudited  consolidated  statements  of
operations  of  the  Sites  for  the  prior  stub  period(s),   provided,   that
Contributors  will have no obligation to deliver any such stub period statements
for periods beginning after the Initial Closing Date.



                                       55




     SECTION 6.16 Exclusivity; Return of Confidential Information.

     (a) Except with respect to the Excluded Assets, Strategic Sites or Excluded
Sites,  Contributors  will  not  (and  will not  cause  or  permit  any of their
respective Affiliates,  Subsidiaries,  directors, officers, employees, or agents
to) (i) solicit,  initiate or encourage the  submission of any proposal or offer
from any Person relating to the acquisition or lease of all or substantially all
of the Sites (a "Competing Transaction"),  including,  without limitation,  from
any Person (other than Lessee or its  Affiliates)  that was at any time involved
in the  bidding  and  selection  process for the sale or Lease of the Sites (the
"Auction")  in  2004  or  2005;  or  (ii)  participate  in  any  discussions  or
negotiations  regarding,  furnish any  information  with  respect to,  assist or
participate  in, or  facilitate in any other manner any effort or attempt by any
Person  to do or seek any of the  foregoing.  Contributors  will  notify  Lessee
immediately if any Person makes any proposal,  offer,  inquiry,  or contact with
respect to any Competing Transaction.

     (b) Sprint  agrees not to release or permit the release of any Person from,
or to waive or permit  the  waiver of any  provision  of,  any  confidentiality,
"standstill" or similar  agreement to which Sprint or any of its Affiliates is a
party with  respect to the  Auction,  and will use its  commercially  reasonable
efforts to enforce or cause to be enforced each such agreement at the request of
Lessee.   Sprint  will  promptly   request  each  Person  that  has  executed  a
confidentiality agreement in connection with the Auction or its consideration of
any  other  Competing   Transaction  to  return  all  Confidential   Information
heretofore furnished to such Person by or behalf of Sprint or its Affiliates.

     SECTION 6.17 Notices of Certain Events.

     Contributors will promptly notify Lessee of:

     (a) any  changes or events  with  respect to the Leased  Property of a Site
which,  individually  or in the  aggregate,  have  had or  would  reasonably  be
expected to have a Tower Liability;

     (b) any notice or other  communication  from any Governmental  Authority in
connection with the transactions contemplated by this Agreement; and

     (c) (i) the damage or  destruction  by fire or other casualty of the Leased
Property of any Site or part thereof, (ii) in the event that the Leased Property
of the Sites or part  thereof  becomes  the  subject  of any  proceeding  or, to
Contributors'  knowledge,  threatened proceeding,  for the taking thereof or any
part thereof or of any right relating thereto by condemnation, eminent domain or
other similar  governmental  action,  or (iii) any foreclosure,  deed-in-lieu of
foreclosure,  or similar  proceeding  with  respect to any Lien  against a Site,
including any Ground Lessor Mortgage.

     SECTION 6.18 Sprint and its Affiliates' Rights.

     Notwithstanding  any other  provision in this  Agreement or any  Collateral
Agreement,  the parties  acknowledge and agree that,  except with respect to the
Sites  (other than the  Excluded  Sites and  Strategic  Sites),  nothing in this
Agreement or any Collateral  Agreement is intended to create any  prohibition or
restriction  on Sprint's



                                       56



     and/or its Affiliates  (other than Lessor)  ability to construct,  lease or
     otherwise  obtain the right to use (and lease tower space to third parties)
     wireless communications tower sites.

                                   ARTICLE 7

                   CONDITIONS TO LESSEE'S OBLIGATION TO CLOSE

     Lessee's  obligation to consummate the  transactions  contemplated  by this
Agreement is subject to the  satisfaction on or prior to the applicable  Closing
Date (unless otherwise provided below) of each of the following conditions,  any
or all of which may be waived in whole or in part by Lessee:

     SECTION 7.1  Representations,  Warranties and Covenants of Contributors and
Sprint.

     (a) The representations and warranties of Contributors and Sprint contained
in Article 4 will be true and  correct in all  respects,  in each case as of the
date  of  this  Agreement  and  as of  the  Initial  Closing  Date,  except  for
representations  and  warranties  that speak as of a specific date or time other
than the date of this Agreement and the Initial Closing Date (which need only be
true  and  correct  as of such  specified  date or  time);  provided,  that  the
conditions  precedent in this Section 7.1 will  nevertheless be deemed satisfied
unless the  inaccuracy,  falsity or  incorrectness  of such  representations  or
warranties would reasonably be expected to have a Material Adverse Effect.

     (b) The covenants and agreements of Contributors and Sprint to be performed
on or before the Initial  Closing Date in accordance  with this  Agreement  will
have been duly performed in all material respects.

     (c) Lessee will have received a certificate from (i) Contributors signed on
behalf of each Contributor by an authorized  officer of Contributors and (ii) an
authorized officer of Sprint with respect to itself, in each case, to the effect
set forth in paragraphs (a) and (b) above dated the Initial Closing Date.

     SECTION 7.2 HSR Filings.

     At  the  Initial  Closing  Date,  any  waiting  periods  applicable  to the
consummation  of the  transactions  contemplated by this Agreement under the HSR
Act will have expired or been  terminated,  or Contributors and Lessee will have
mutually  concluded that no filing under the HSR Act is required with respect to
the  transactions  contemplated by this Agreement,  and no action will have been
instituted  by the United  States  Department  of  Justice or the United  States
Federal Trade  Commission  challenging or seeking to enjoin the  consummation of
the transactions contemplated by this Agreement, which action will not have been
withdrawn or terminated.

     SECTION 7.3 No Injunction or Proceedings.

     At the Initial Closing Date,  there will be no Order that is in effect that
prohibits the Initial Closing and no legal proceedings will be pending involving
any  challenge  to, or seeking  material  damages or other relief in  connection
with,  any of the other



                                       57



transactions  contemplated  by this Agreement and the  Collateral  Agreements or
that would  reasonably be expected to have the effect of  preventing,  delaying,
making  illegal  or  otherwise  materially  interfering  with  the  transactions
contemplated by this Agreement and the Collateral Agreements.

     SECTION 7.4 Collateral Agreements and Additional Closing Deliveries.

     (a)  Contributors and Lessor will have executed and delivered to Lessee (i)
the Lease  Agreement  (including the applicable Site  Designation  Supplements),
(ii)  the  Transition  Services  Agreement  in  form  and  substance  reasonably
satisfactory to Lessee, (iii) the Property Use Agreement,  (iv) the Separateness
Agreement,  and (v) such other agreements and documents  contemplated by Section
2.6 of this Agreement.

     (b) As a condition to each Technical Closing,  Contributors and Lessor will
have executed and delivered to Lessee (i) amended schedules and exhibits to each
of the Lease Agreement  (including the applicable Site Designation  Supplements)
and (ii) such other agreements and documents contemplated by Section 2.7 of this
Agreement.

     (c) At the Initial  Closing,  on the terms and subject to the conditions of
this Agreement,  Contributors  (individually  and jointly,  as applicable)  will
deliver, or cause to be delivered, to Lessee:

          (i)  as a  protective  delivery,  a  duly  executed  certification  of
     non-foreign  status of Lessor in a form complying with the  requirements of
     Section 1445 of the Code (a "FIRPTA Certificate");  provided, however, that
     if Lessor fails to deliver such FIRPTA Certificate, Lessee will be entitled
     to withhold all requisite amounts,  if any, in accordance with Section 1445
     of the Code;

          (ii) with respect to each Ground Lease and Collocation Agreement,  all
     correspondence and memoranda related to the same, to the extent that Sprint
     and/or Contributors are in possession of such correspondence and memoranda;

          (iii) the items that Lessee may have reasonably  requested pursuant to
     the second  sentence  of Section  6.3 in order that  Lessee's  counsel  may
     provide  certain  bankruptcy-related  opinion  letters in  connection  with
     financing transactions undertaken by Lessee;

          (iv) a copy of the determination of "No Hazard" to air navigation from
     the FAA for  each  Tower  with  respect  to  which  such  determination  is
     required,  to the extent  that such  determinations  were issued and Sprint
     and/or Contributors are in possession of such determinations;

          (v) all keys and other  security  access  codes or  devices  providing
     entry to the Towers (other than Sprint's Improvements);

          (vi) a copy of the  currently  existing  FCC Form 854R for each  Tower
     with respect to which such form is required, to that extent that such forms
     were  created and Sprint  and/or  Contributors  are in  possession  of such
     forms;


                                       58




          (vii)  the  books,   files  and  records  required  pursuant  to  this
     Agreement;

          (viii)  certificates of good standing of each Contributor issued as of
     a date no more than  thirty  (30)  days  prior to the  Closing  Date by the
     appropriate  Secretary  of State or  comparable  official in each  entity's
     State of formation of each Contributor; and

          (ix) such other items and certificates  contemplated by Section 2.6 or
     Section 2.7 as may be reasonably  required to consummate  the  transactions
     contemplated hereby.

     (d) The condition set forth in the Section 2.6(h) shall have been satisfied

     SECTION 7.5 Contributable Sites and Master Lease Sites.

     At  the  Initial  Closing,  as  determined  by  Lessee  in  its  reasonable
discretion,  (i) no less than  sixty-five  percent  (65%) of the  Sites  will be
Contributable  Sites and (ii) no less than fifty percent (50%) of the Sites will
be Master Lease Sites for which the Individual Site Closing Conditions have been
satisfied or waived by Lessee (in Lessee's  discretion),  such percentages based
on the ratio of the aggregate  Rents and Pre-Lease Rents allocable to the Leased
Property at such Contributable Sites and Master Lease Sites, as the case may be,
divided by the aggregate  Rents and Pre-Lease  Rents payable with respect to all
Sites, in each case as set forth on Exhibit H to the Lease Agreement (which will
be agreed by the parties  prior to the  Initial  Closing as set forth in Section
3.9). Any waiver of the foregoing conditions, in whole or part, will in no event
effect whether (or not) a Site satisfies the conditions for a Financeable  Site;
however  if  Lessee  elects to waive an  Exception  with  respect  to a Site for
purposes  of this  Section  7.5 or  Section  7.6 below and does not  obtain  the
consent of the  affected  Contributor,  then,  notwithstanding  anything  to the
contrary in this Agreement,  neither Contributors nor Lessor will be responsible
for, and Lessee  agrees to indemnify  Contributors  and Lessor from and against,
any  Liabilities  resulting  from or arising in connection  with any such waived
Exception.

     SECTION 7.6 Individual Site Closing Conditions.

     The  Individual  Site Closing  Conditions  with respect to any Master Lease
Site  which is to be Leased by Lessor to Lessee at such  Closing  will have been
satisfied  or waived by Lessee  (however  such  waiver  will in no event  effect
whether (or not) a Site satisfies the conditions for a Financeable Site).

                                   ARTICLE 8

                      CONDITIONS TO CONTRIBUTORS', SPRINT'S
                        AND LESSOR'S OBLIGATIONS TO CLOSE

     Contributors',   Sprint's  and  Lessor's   obligations  to  consummate  the
transactions  contemplated by this Agreement are subject to the  satisfaction on
or prior to the applicable  Closing Date (unless  otherwise  provided  below) of
each of the following


                                       59



conditions,  any or  all  of  which  may  be  waived  in  whole  or in  part  by
Contributors, Sprint and Lessor:

     SECTION 8.1 Representations, Warranties and Covenants of Lessee.

     (a) The  representations  and  warranties of Lessee  contained in Article 5
will be true and  correct in all  respects,  in each case as of the date of this
Agreement and as of the Initial  Closing Date,  except for  representations  and
warranties  that speak as of a specific date or time other than the date of this
Agreement or the Initial Closing Date (which need only be true and correct as of
such specified date or time); provided,  that the conditions precedent set forth
in this Section 8.1(a) will be deemed satisfied  unless the inaccuracy,  falsity
or  incorrectness  of such  representations  and warranties  would reasonably be
expected to have a Lessee Material Adverse Effect.

     (b) The covenants and agreements of Lessee to be performed on or before the
Initial  Closing  Date in  accordance  with this  Agreement  will have been duly
performed in all material respects.

     (c)  Contributors  will have received a  certificate  from Lessee signed on
behalf of Lessee by an  authorized  officer of Lessee with  respect to itself to
the effect set forth in paragraphs  (a) and (b) above dated the Initial  Closing
Date.

     SECTION 8.2 HSR Filings.

     At  the  Initial  Closing  Date,  any  waiting  periods  applicable  to the
consummation  of the  transactions  contemplated by this Agreement under the HSR
Act will have expired or been  terminated,  or Contributors and Lessee will have
mutually  concluded that no filing under the HSR Act is required with respect to
the  transactions  contemplated by this Agreement,  and no action will have been
instituted  by the United  States  Department  of  Justice or the United  States
Federal Trade  Commission  challenging or seeking to enjoin the  consummation of
the transactions contemplated by this Agreement, which action will not have been
withdrawn or terminated.

     SECTION 8.3 No Injunction or Proceedings.

     At the Initial Closing Date,  there will be no Order that is in effect that
prohibits the Initial Closing and no legal proceedings will be pending involving
any  challenge  to, or seeking  material  damages or other relief in  connection
with,  any of the other  transactions  contemplated  by this  Agreement  and the
Collateral Agreements or that would reasonably be expected to have the effect of
preventing,  delaying,  making illegal or otherwise materially  interfering with
the transactions contemplated by this Agreement and the Collateral Agreements.

     SECTION 8.4 Collateral Agreements.

     (a) Lessee will have executed and delivered to Contributors  and Lessor (i)
the Lease  Agreement  (including the applicable Site  Designation  Supplements),
(ii)  the  Transition  Services  Agreement  in  form  and  substance  reasonably
satisfactory to


                                       60



Contributors and Sprint, (iii) the Separateness  Agreement,  and (iv) such other
agreements and documents contemplated by Section 2.6.

     (b) As a condition to each Technical Closing, Lessee will have executed and
delivered to Contributors  and Lessor (i) amended  schedules and exhibits to the
Lease Agreement  (including the applicable Site  Designation  Supplements),  and
(ii) such other agreements and documents contemplated by Section 2.7.



                                   ARTICLE 9

                            SURVIVAL; INDEMNIFICATION

     SECTION 9.1 Indemnification Obligations of Contributors and Sprint.

     (a) Contributors and Sprint will, jointly and severally, indemnify and hold
harmless each of the Lessee Indemnified  Parties from, against and in respect of
any  and  all  claims,  liabilities,   obligations,   losses,  costs,  expenses,
penalties,  fines  and  judgments  (at  equity or at law) and  damages  whenever
arising  or  incurred  (including  amounts  paid in  settlement  and  reasonable
attorneys' fees and expenses) (any of the foregoing, a "Loss") arising out of or
relating to:

          (i) any breach or inaccuracy of any representation or warranty made by
     Contributors or Sprint in Article 4 of this Agreement;

          (ii) any  breach  or  nonperformance  of any  covenant,  agreement  or
     undertaking made by Contributors or Sprint in this Agreement;

          (iii) any Taxes of  Sprint,  Contributors  or Lessor  (other  than any
     Taxes  which  Lessee  expressly  assumes  or  agrees to  indemnify  against
     pursuant to the Lease Agreement);

          (iv) the Excluded Assets;

          (v) the Excluded Liabilities; and

          (vi) the foreclosure, deed-in-lieu of foreclosure or similar action by
     the holder of a Ground  Lessor  Mortgage that results in the Loss of a Site
     by Lessee.

     (b)  Neither  Sprint nor  Contributors  will have any  liability  under any
provision of this Agreement for any Losses to the extent that such Losses relate
to the negligence, willful misconduct or breach of any representation, warranty,
covenant or agreement of Lessee  contained in this  Agreement or any  Collateral
Agreement or by any other Person  (other than  Contributors,  Lessor,  Sprint or
their respective  Affiliates) or their respective officers,  agents,  employees,
representatives, contractors, licensees, tenants or subtenants.



                                       61




     (c)  Neither  Sprint nor  Contributors  will have any  liability  under any
provision of this  Agreement  for Losses to the extent such Losses relate to the
actions or obligations  of Lessor under the Lease  Agreement,  such  indemnities
being only as and to the extent set forth in the Lease Agreement.

     (d) Lessee will take and will cause its Affiliates to take reasonable steps
to mitigate any Losses upon becoming  aware of any event which would  reasonably
be expected to or does give rise to any claim for Losses  under this  Article 9,
but will not be required to incur costs to remedy the breach which gives rise to
the Losses.

     (e) In the event of a Loss for which  indemnification would be available to
a Lessee  Indemnified Party under Section  9.1(a)(vi),  the damage for such Loss
shall  be  measured  by  reference  to the  unamortized  portion  of the Rent or
Pre-Lease Rent allocable to the lost Site as set forth on Exhibit H to the Lease
Agreement.

     (f) The rights of the Lessee Indemnified  Parties to indemnification  under
this Agreement will not be affected by any investigation  conducted or actual or
constructive  knowledge  acquired  at any  time by a Lessee  Indemnified  Party,
whether before or after the date hereof or any Closing Date; provided,  however,
that if Lessee is aware of any matter or condition  that would permit Lessee not
to close the  transactions  contemplated  hereby under Section 7.1(a) and Lessee
nonetheless proceeds to the Initial Closing, then the Lessee Indemnified Parties
will have no right to seek indemnification  under Section 9.1(a)(i) with respect
to Losses resulting or arising from such matter or condition.

     SECTION 9.2 Indemnification Obligations of Lessee.

     (a)  Lessee  will  indemnify  and hold  harmless  each of the  Contributors
Indemnified  Parties from,  against and in respect of any and all Losses arising
out of or relating to:

          (i) any breach or inaccuracy of any representation or warranty made by
     Lessee in Article 5 of this Agreement; or

          (ii) any  breach  or  nonperformance  of any  covenant,  agreement  or
     undertaking made by Lessee in this Agreement.

     (b)  Lessee  will  not have  any  liability  under  any  provision  of this
Agreement  for  any  Losses  to  the  extent  that  such  Losses  relate  to the
negligence,  willful  misconduct  or  breach  of any  representation,  warranty,
covenant or agreement of Contributors  or Sprint  contained in this Agreement or
any  Collateral  Agreement  or by any other  Person  (other  than  Lessee or its
Affiliates) or their respective officers,  agents,  employees,  representatives,
contractors, licensees, tenants or subtenants.

     (c)  Contributors  and  Sprint  will take and will cause  their  respective
Affiliates  to take all  reasonable  steps to mitigate any Losses upon  becoming
aware of any event  which would  reasonably  be expected to or does give rise to
any claim for Losses  under this  Article 9, but will not be  required  to incur
costs to remedy the breach which gives rise to the Losses.


                                       62




     (d) The rights of the Contributors  Indemnified  Parties to indemnification
under this  Agreement  will not be affected by any  investigation  conducted  or
actual  or  constructive  knowledge  acquired  at  any  time  by a  Contributors
Indemnified Party,  whether before or after the date hereof or any Closing Date;
provided, however, that if Contributors is aware of any matter or condition that
would permit  Contributors not close the transactions  contemplated hereby under
Section 8.1(a) and Contributors nonetheless proceed to the Initial Closing, then
the Contributor  Indemnified Parties will have no right to seek  indemnification
under Section  9.2(a)(i)  with respect to Losses  resulting or arising from such
matter or condition.

     (e)  Indemnification  of Contributors  with respect to Lessee's  failure to
perform,  discharge or satisfy any of the Assumed Liabilities will be limited as
and to the extent provided in the Lease Agreement.

     (f) Lessee's payment and indemnification  obligations with respect to Taxes
will be governed  solely under Section 16 and Section 39 of the Lease  Agreement
and not this Article 9.

         SECTION 9.3 Indemnification Procedure for Third Party Claims.

     (a) Promptly  after  receipt by an  Indemnified  Party of notice by a third
party  of  a  threatened  or  filed   complaint  or  the  threatened  or  actual
commencement of any audit,  investigation,  action or proceeding with respect to
which such  Indemnified  Party may be entitled to receive payment from the other
party for any Loss, such Indemnified Party will provide written  notification to
Lessee,  Sprint or Contributors,  whoever is the appropriate  indemnifying party
under this Agreement (the "Indemnifying Party"),  within thirty (30) days of the
Indemnified  Party's  becoming  aware  of the  threatening  or  filing  of  such
complaint or of the  Indemnified  Party's  becoming  aware of the  threatened or
actual  commencement  of  such  audit,  investigation,   action  or  proceeding;
provided,  that the failure to so notify the Indemnifying Party will relieve the
Indemnifying  Party from  liability  under this  Agreement  with respect to such
claim only to the extent  that such  failure  to notify the  Indemnifying  Party
results in (i) the forfeiture by the  Indemnifying  Party of rights and defenses
otherwise available to the Indemnifying Party with respect to such claim or (ii)
prejudice to the Indemnifying Party with respect to such claim. The Indemnifying
Party will have the right,  upon written  notice  delivered  to the  Indemnified
Party  within  thirty  (30) days  thereafter,  to  assume  the  defense  of such
complaint, audit, investigation,  action or proceeding, including the employment
of  counsel  and the  payment  of the fees  and  disbursements  of such  counsel
reasonably  acceptable to the Indemnified Party. In the event, however, that the
Indemnifying  Party  declines  or fails to  assume  the  defense  of the  audit,
investigation,  action or  proceeding  on the terms  provided  above within such
thirty  (30) day  period,  then the  Indemnified  Party may  employ  counsel  to
represent or defend it in any such audit,  investigation,  action or  proceeding
and the  Indemnifying  Party will pay the reasonable fees and  disbursements  of
such  counsel as incurred;  provided,  that the  Indemnifying  Party will not be
required to pay the fees and disbursements of more than one counsel (in addition
to  local   counsel)  for  all   Indemnified   Parties  in  any  single   audit,
investigation,  action or  proceeding.  In any audit,  investigation,  action or
proceeding  with  respect to which  indemnification  is being  sought under this
Agreement,  the Indemnified  Party or the Indemnifying  Party,  whichever is not
assuming



                                       63



the defense of such action,  will have the right to  participate  in such matter
and to retain its own counsel at such  party's  own  expense.  The  Indemnifying
Party  or the  Indemnified  Party,  as the case may be,  will at all  times  use
reasonable  efforts to keep the Indemnifying  Party or the Indemnified Party, as
the case may be, reasonably  apprised of the status of any matter the defense of
which they are  maintaining  and to cooperate in good faith with each other with
respect to the defense of any such matter.

     (b) No  Indemnified  Party may settle or compromise any claim or consent to
the entry of any judgment with respect to which  indemnification is being sought
under this  Agreement  without  the prior  written  consent of the  Indemnifying
Party,  other than with respect to Shared Ground Lease  Payments the  settlement
and/or compromise of which will be governed by Section 3.4.

     (c) In the  event  an  Indemnified  Party  will  claim a right  to  payment
pursuant to this  Agreement not involving a third party claim covered by Section
9.1 or Section 9.2,  such  Indemnified  Party will send  written  notice of such
claim to the  appropriate  Indemnifying  Party.  Such  notice  will  specify  in
reasonable  detail the basis for such claim.  As promptly as possible  after the
Indemnified  Party  has  given  such  notice,  such  Indemnified  Party  and the
appropriate  Indemnifying  Party  will  establish  the merits and amount of such
claim (by mutual  agreement,  arbitration,  litigation or otherwise) and, within
five (5) business  days of the final  determination  of the merits and amount of
such claim, the Indemnifying Party will pay to the Indemnified Party immediately
available  funds in an  amount  equal to such  claim as  determined  under  this
Agreement, if any.

     SECTION 9.4 Indemnity Period.

     The Indemnity  Period under this  Agreement  will begin on the date of this
Agreement and will terminate as follows:

     (a) the  representations  and  warranties of the parties  applicable to the
Sites for which the Leased  Property at such Sites is being  Leased to Lessee at
the Initial Closing or Conversion  Closing, as the case may be, will survive for
180 days following the applicable Closing Date and all other representations and
warranties of the parties will survive for ninety (90) days  following the Final
Closing Date; provided,  that the following  representations and warranties will
survive  indefinitely:  Section 4.1 (Organization),  Section 4.2 (Authority;  No
Conflicts),  Section 4.8 (Brokers;  Finders, etc.), Section 5.1 (Incorporation),
Section 5.2  (Authority),  Section 5.3 (No  Conflicts) and Section 5.6 (Brokers,
Finders, etc.);

     (b)  the  covenants  and  agreements  of  the  parties  contemplated  to be
satisfied prior to the Initial Closing will not survive the Initial Closing;

     (c) the covenants and agreements of the parties applicable to the Sites for
which the Leased  Property at such Sites is being  Leased to Lessee at a Closing
that are  contemplated  to be  satisfied  prior to such Closing will not survive
such Closing;



                                       64





     (d) any covenants and agreements (including those set forth in Sections 9.1
and 9.2) that  expressly  contemplate  action to be taken after any such Closing
will survive such Closing in accordance with their terms;

     (e) the provisions of Section  9.1(a)(iii) will survive until the date that
is sixty  (60) days  following  the  expiration  of the  applicable  statute  of
limitations,  including as it may be extended from time to time by either of the
parties; and

     (f) the provisions of Section 9.1(a)(iv) and Section 9.1(a)(v) will survive
indefinitely.

     Notwithstanding  the  foregoing,  if, prior to the close of business on the
last day of the applicable  Indemnity  Period,  an  Indemnifying  Party has been
properly  notified of a claim for Losses under this Agreement and such claim has
not been finally  resolved or disposed of at such date, such claim will continue
to survive and will remain a basis for indemnity under this Agreement until such
claim is finally  resolved or disposed of in  accordance  with the terms of this
Agreement.

     SECTION 9.5 Liability Limits.

     (a)  The  Lessee  Indemnified   Parties  will  not  make  a  claim  against
Contributors or Sprint for indemnification under Section 9.1 for any single Loss
less than $15,000 (each, a "De Minimis  Claim"),  unless and until the aggregate
amount of Losses under  Section 9.1,  including  for this purpose any De Minimis
Claims, exceeds $10,000,000 (the "Lessee Deductible"); provided, that claims for
indemnification (x) for breaches of the representations and warranties of Sprint
or Contributors, as applicable, set forth in Section 4.1 (Organization), Section
4.2 (Authority;  No Conflicts),  and Section 4.8 (Brokers,  Finders,  etc.), (y)
under Section 9.1(a)(ii),  Section  9.1(a)(iii),  Section 9.1(a)(iv) and Section
9.1(a)(v), and (z) as set forth in Section 3.3(b)(ii)(4), will not be subject to
the Lessee Deductible or the De Minimis Claim amount.

     (b) The  Contributors  Indemnified  Parties  will not make a claim  against
Lessee for  indemnification  under Section 9.2 for any De Minimis Claim,  unless
and until the aggregate  amount of Losses under Section 9.2,  including for this
purpose  any  De  Minimis  Claims,   exceeds   $10,000,000  (the   "Contributors
Deductible");  provided, that claims for indemnification (x) for breaches of the
representations   and   warranties   of  Lessee   set  forth  in   Section   5.1
(Incorporation),  Section 5.2 (Authority), Section 5.6 (Brokers, Finders, etc.),
and Section 5.10 (Financial Capability),  and (y) under Section 9.2(a)(ii),  and
Section 9.2(a)(iii) will not be subject to the Contributors Deductible or the De
Minimis Claim amount.

     SECTION 9.6 Exclusive Remedies.

     Except for fraud,  willful and intentional  misrepresentation,  willful and
intentional breach of any of the  representations,  warranties or covenants,  or
any equitable remedy provided in Section 11.10, the provisions of this Article 9
set forth the  exclusive  rights and  remedies of the  Contributors  Indemnified
Parties  and the Lessee  Indemnified  Parties  to seek or obtain  damages or any
other remedy or relief whatsoever from any party with


                                       65




respect to matters  arising under or in connection  with this  Agreement and the
transactions contemplated by this Agreement.

     SECTION 9.7 Netting of Losses.

     The amount of any Loss for which  indemnification  is  provided  under this
Article 9 will take into account (a) any amounts recovered or recoverable by the
Indemnified  Party  pursuant  to  any  indemnification  by,  or  indemnification
agreement  with,  any third  party,  (b) any  insurance  proceeds  or other cash
receipts or sources of  reimbursement  collectable by the  Indemnified  Party in
connection  with any Losses and (c) any Tax  consequences  associated  with such
Losses and the recovery  thereof.  If the amount to be netted hereunder from any
payment  required  under  Section  9.1 or  Section  9.2  of  this  Agreement  is
determined after payment by the  Indemnifying  Party pursuant to this Article 9,
the Indemnified Party will repay to the Indemnifying Party,  promptly after such
determination,  any amount that the Indemnifying Party would not have had to pay
pursuant to this Article 9 had such  determination been made at the time of such
payment.

                                   ARTICLE 10

                                   TERMINATION

     SECTION 10.1 Termination of Agreement.

     This Agreement may be terminated and the transactions  contemplated by this
Agreement may be abandoned at any time prior to the Initial Closing Date:

     (a) by mutual written consent of Contributors and Lessee;

     (b) by either  Contributors or Lessee, if the Initial Closing will not have
occurred  on or  prior  to the  day  that is 180  days  after  the  date of this
Agreement  so long as the  terminating  party  had  not  breached  of any of its
obligations under this Agreement in a manner that  substantially  delayed of the
Initial Closing;  provided,  that neither party will have the right to terminate
this Agreement pursuant to this paragraph (b) prior to the date that is 270 days
after the date of this Agreement if the principal reason the Initial Closing has
not  occurred  on or prior to the day  that is 180 days  after  the date of this
Agreement is the failure of the  conditions  to Closing set forth in Section 7.2
or Section 8.2 to be satisfied.

     (c) by  Contributors,  provided  that they are not then in breach of any of
their  obligations  under this  Agreement,  if Lessee (i) fails in any  material
respect to perform  any of its  covenants  in this  Agreement  when  performance
thereof  is  due,  (ii)  has  breached  in  any  material  respect  any  of  the
representations or warranties  contained in Article 5 of this Agreement and does
not cure the failure or breach within  forty-five  (45) days after  Contributors
deliver written notice thereof, or (iii) prior to the date (the "First Milestone
Date") that is 140 days after the date of this  Agreement,  has failed to obtain
Ground  Lessor  Estoppels  for  at  least  50%  of the  Sites  (such  percentage
calculated  as set forth in Section 7.5),  unless a significant  reason for such
failure  is the breach by  Contributors  or Sprint of their  undertakings  under
Articles 2 or 3 with respect to the identification and



                                       66




cure of  Exceptions  and/or  related  representations  or  warranties  (it being
understood that Lessee has agreed to the Milestones  Dates in material  reliance
that  Contributors  and  Sprint  will  provide  the  resources,   materials  and
cooperation  required  to be  provided by  Contributors  and Sprint  pursuant to
Article 2 and Article 3 in connection with identifying addressing and curing any
exceptions in a timely manner),  or a good faith dispute with  Contributors over
the existence or cure of an Exception  that results in  arbitration,  but in any
event provided that all other  conditions to the Initial  Closing will have been
satisfied (or waived by the  applicable  party);  provided,  that (A) Lessee may
elect to extend the First Milestone Date for an additional twenty-five (25) days
(the "Second  Milestone Date") by written notice to Contributors and delivery of
an Additional  Deposit to Escrow Agent on or before the First Milestone Date and
(B) Lessee may elect to extend the Second  Milestone Date until the date that is
180 days after the date of this Agreement (the "Last Milestone Date") by written
notice to Contributors and delivery of an Additional  Deposit to Escrow Agent on
or before the Second Milestone Date;

     (d) by  Lessee,  provided  that  it is not  then  in  breach  of any of its
obligations  under this  Agreement,  if  Contributors  (i) fail in any  material
respect to perform any of their  covenants in this  Agreement  when  performance
thereof  is  due or  (ii)  have  breached  in any  material  respect  any of the
representations  and warranties  contained in Article 4 of this Agreement and do
not cure the failure or breach within forty-five (45) days after Lessee delivers
written notice thereof; or

     (e) by either Contributors or Lessee, if any permanent  injunction,  decree
or  judgment  of  any  Governmental  Authority  preventing  consummation  of the
transactions  contemplated by this Agreement and the Collateral  Agreements will
have become final and  nonappealable  or any Law will make  consummation  of the
transactions  contemplated  by  this  Agreement  and the  Collateral  Agreements
illegal or otherwise prohibited.

     SECTION 10.2 Effect of Termination.

     (a) If  this  Agreement  is  terminated  pursuant  to  Section  10.1,  this
Agreement  (except  for the last  sentence  of Section  6.1(a),  Section 6.5 and
Section  6.12 and  Section  11.4) will  become null and void and have no effect,
without any  liability  on the part of any party or its  directors,  officers or
stockholders,  except as otherwise provided in this Agreement. In the event of a
termination  under Section  10.1(c) or Section  10.1(d),  or with respect to the
provisions hereof that expressly survive termination, each of Lessee, Sprint and
Contributors  will in all  events be  entitled  to pursue any and all rights and
remedies  therefor  to  which it or they may be  entitled  at Law or in  equity,
including,  without  limitation,  specific  performance  of the  agreements  and
covenants  of the other  parties  contained  in this  Agreement  as  provided in
Section 11.10.

     (b) If this  Agreement  is  terminated  for any  reason  other  than  (a) a
material  breach by Lessee of its obligations  under this Agreement,  or (b) the
failure of Lessee to obtain all funds  required to be provided by Lessee for the
consummation of the  transactions  contemplated by this Agreement,  the Deposit,
together with all earnings thereon, will be returned by Escrow Agent to Lessee.



                                       67



     (c)  Notwithstanding  anything to the contrary  contained  herein,  if this
Agreement is terminated by Lessee, pursuant to the last sentence of Section 3.9,
the  Deposit,  together  with all earnings  thereon,  will be returned by Escrow
Agent to Lessee.

     (d) If this Agreement is terminated as a result of (i) a material breach by
Lessee of its obligations under this Agreement, or (ii) the failure of Lessee to
obtain all funds required to be provided by Lessee for the  consummation  of the
transactions  contemplated  by this  Agreement,  the Deposit,  together with all
earnings thereon, will be delivered by Escrow Agent to Contributors.

                                   ARTICLE 11

                                  MISCELLANEOUS

     SECTION 11.1 Counterparts.

     This  Agreement  may be  executed  in  counterparts,  each of which will be
deemed to be an  original,  but all of which  will  constitute  one and the same
agreement.

     SECTION 11.2 Governing Law

     This  Agreement  will be governed by and construed in  accordance  with the
laws of the  State of New York  (regardless  of the laws  that  might  otherwise
govern under  applicable  principles  of  conflicts  of laws  thereof) as to all
matters,  including matters of validity,  construction,  effect, performance and
remedies.

     SECTION 11.3 Entire Agreement.

     This  Agreement  (including  the attached  Schedules  and Exhibits) and the
Collateral Agreements,  constitute the entire agreement between the parties with
respect  to the  subject  matter  of  the  Agreement  and  supersede  all  prior
agreements,  both  written and oral,  between the  parties  with  respect to the
subject matter of this Agreement.  This Agreement will be binding upon and inure
solely to the benefit of each party and its successors and permitted assigns.

     SECTION 11.4 Fees and Expenses.

     Except as otherwise  specifically set forth in this Agreement,  whether the
transactions  contemplated  by this  Agreement are or are not  consummated,  all
legal and other costs and expenses  incurred in connection  with this  Agreement
and the  transactions  contemplated  by this Agreement will be paid by the party
incurring such costs and expenses.

     SECTION 11.5 Notices.

     All notices,  requests,  demands, waivers and other communications required
or permitted  under this Agreement will be in writing and will be deemed to have
been  delivered  (a) five (5) business  days after being  mailed by  first-class
mail,  postage  prepaid,  (b) the next  business  day when sent  overnight  by a
recognized courier service, (c) upon



                                       68



confirmation  when  sent by telex,  telegram,  telecopy  or other  form of rapid
transmission,  confirmed by mailing written  confirmation at  substantially  the
same time as such  rapid  transmission,  or (d) upon  delivery  when  personally
delivered to the receiving  party (which if other than an individual  will be an
officer or other responsible party of the receiving party). All such notices and
communications  will be mailed,  sent or delivered as set forth below or to such
other  person(s),  telex or facsimile  number(s) or  address(es) as the party to
receive any such  communication  or notice may have designated by written notice
to the other party.

                  If to Contributors, to:

                  Sprint Spectrum, L.P.
                  1 International Blvd., Suite 800
                  Mahweh, N.J. 07495
                  Fax No. 201-684-4195
                  Attention: Don Mueller

                  with a copy to:

                  Sprint Law Department
                  KSOPHT0101 - Z2020
                  6931 Sprint Parkway
                  Overland Park, KS 66251
                  Fax No.  913-523-9823
                  Attention:  Real Estate Attorney

                  and a copy to:

                  King & Spalding LLP
                  191 Peachtree Street
                  Atlanta, Georgia  30303-1763
                  Fax No. (404) 572-5146
                  Attention:  Michael J. Egan
                                 Raymond E. Baltz, Jr.


                  If to Lessee, to:

                  Global Signal, Inc.
                  301 North Cattlemen Road, Suite 300
                  Sarasota, Florida  34232,
                  Attn:    Greerson G. McMullen, General Counsel
                  Fax:     (941) 308-4294



                                       69




                  with a copy to:

                  Skadden, Arps, Slate, Meagher & Flom LLP
                  Four Times Square
                  New York, New York  10036
                  Attn:    Joseph A. Coco
                  Fax:     (917) 777-3050


     SECTION 11.6 Assignment; Successors and Assigns; Third-Party Beneficiaries.

     This  Agreement  will not be  assignable  by any party  without the express
prior  written  consent  of the other  parties  to this  Agreement  and any such
assignment  will be null and void,  except  that (a) each of the parties to this
Agreement  may assign all or a portion of its rights and  remedies  (but none of
its  obligations)  under  this  Agreement  to one  or  more  of  its  respective
Affiliates,  including,  in connection with the formation of any special purpose
entity in connection with the transactions  contemplated by this Agreement,  (b)
Lessee may assign all or any portion of its rights and  remedies to its lenders,
and (c) each of the parties may assign all or a portion of its rights,  remedies
and obligations to any entity (including,  without  limitation,  a trust) to the
extent necessary to receive Governmental Approval of any Governmental  Antitrust
Authority in connection  with the  transactions  contemplated  by this Agreement
(provided that,  with respect to the assignments  referred to in clause (c): (i)
prior to such assignment, such entity provides the non-assigning party copies of
such entity's most recent financial statements and other information  (financial
or  otherwise)   reasonably  requested  by  the  non-assigning  party,  (ii)  if
reasonably requested by the non-assigning party after a review of such financial
information,  the assigning  party will guarantee the obligations of such entity
under this  Agreement and, if  applicable,  each of the  Collateral  Agreements,
(iii) with respect to the assignment of the Leased Property of any Sites that do
not contain any Sprint  Collocation  Space, such entity satisfies the assignment
standards  set forth in the Lease  Agreement,  and (iv) such entity agrees to be
bound  by the  terms  and  conditions  of this  Agreement  as if a party to this
Agreement pursuant to an instrument in form and substance reasonably  acceptable
to the  non-assigning  party).  This  Agreement  will be binding  upon and inure
solely to the benefit of each party and its  successors  and permitted  assigns,
and nothing in this Agreement, express or implied, is intended to or will confer
upon any Person any right,  benefit or remedy of any nature  whatsoever under or
by reason of this Agreement, except for Section 9.1 which is intended to benefit
and may be  enforced  by any of the Lessee  Indemnified  Parties and Section 9.2
which is intended  to benefit  and may be  enforced  by any of the  Contributors
Indemnified Parties.

     SECTION 11.7 Headings; Definitions.

     The Section and Article headings contained in this Agreement are solely for
the purpose of reference,  are not part of the agreement of the parties and will
not in any way  affect the  meaning or  interpretation  of this  Agreement.  For
purposes  of this  Agreement,  including  the  Exhibits  and  Schedules  hereto,
whenever the context requires:  the singular number will include the plural, and
vice versa;  the masculine  gender will include the


                                       70



feminine and neuter genders;  the feminine gender will include the masculine and
neuter  genders;  and the neuter  gender will include the masculine and feminine
genders.

     SECTION 11.8 Amendment; Modification.

     This  Agreement may be amended,  modified or  supplemented  only by written
agreement of the parties.

     SECTION 11.9 Time of Essence.

     Time is of the essence in this  Agreement,  and  whenever a date or time is
set forth in this Agreement,  the same has entered into and formed a part of the
consideration for this Agreement.

     SECTION 11.10 Specific Performance.

     Each party  recognizes  and agrees that if the other party should refuse to
perform any of its obligations under this Agreement,  the remedy at Law would be
inadequate  and agrees that for breach of such  provisions,  each party will, in
addition to such other  remedies as may be  available to it at Law or in equity,
be  entitled  to  injunctive  relief and to enforce  its rights by an action for
specific  performance  to the extent  permitted by  applicable  Law.  Each party
hereby waives any  requirement  for security or the posting of any bond or other
surety in  connection  with any  temporary  or  permanent  award of  injunctive,
mandatory or other equitable relief. The arbitrator referred to in Section 11.15
will be empowered to enforce this Section 11.10.

     SECTION 11.11 Mutual Drafting.

     This  Agreement  is the result of the joint  efforts of Lessee,  Sprint and
Contributors,  and each  provision  of this  Agreement  has been  subject to the
mutual consultation,  negotiation and agreement of the parties and there will be
no  construction  against any party  based on any  presumption  of that  party's
involvement in the drafting of this Agreement.

     SECTION 11.12 Limitation of Liability.

     Notwithstanding  anything in this Agreement or the Collateral Agreements to
the  contrary,  neither  party will be liable to the other  party for  indirect,
incidental,  special or consequential  damages,  including,  without limitation,
diminution in value, loss of anticipated profits and punitive damages.

     SECTION 11.13 Disclosures

     Disclosure of any fact or item in any Schedule to this  Agreement or in the
Contributors  Disclosure Letter or the Lessee Disclosure Letter, by reference to
a  particular  section in this  Agreement  will be deemed to be  disclosed  with
respect to every other section in this Agreement if such disclosure would permit
a reasonable  person to find such disclosure  applicable to such other sections;
however  such  disclosure  will  in no  event  affect  whether  (or  not) a Site
satisfies the conditions for a Financeable  Site or


                                       71





otherwise affect the rights or obligations of the parties  hereunder except with
respect to the  representations  and  warranties of the  disclosing  party.  The
specification  of  any  dollar  amount  in  the  representations  or  warranties
contained  in  this  agreement  or the  inclusion  of any  specific  item in any
Schedules to this  Agreement  or in the  Contributors  Disclosure  Letter or the
Lessee  Disclosure  Letter is not  intended  to imply that such  other  amounts,
higher or lower amounts or the items so included or other items,  are or are not
material.

     SECTION 11.14 Jurisdiction and Consent to Service.

     Without limiting the  jurisdiction or venue of any other court,  Lessee and
each Contributor (a) agree that any suit, action or proceeding arising out of or
relating to this Agreement will be brought solely in the state or federal courts
of the State of New York, (b) consent to the exclusive jurisdiction of each such
court in any suit,  action or  proceeding  relating  to or  arising  out of this
Agreement,  (c) waive any objection  which it may have to the laying of venue in
any such  suit,  action or  proceeding  in any such  court,  and (d) agree  that
service of any court paper may be made in such  manner as may be provided  under
applicable laws or court rules governing service of process.

     SECTION 11.15 Waiver of Jury Trial.

     (a) EACH PARTY WAIVES ITS RIGHT TO A JURY TRIAL IN ANY COURT ACTION ARISING
AMONG ANY OF THE  PARTIES,  WHETHER  UNDER OR  RELATING TO THIS  AGREEMENT,  AND
WHETHER MADE BY CLAIM, COUNTER CLAIM, THIRD PARTY CLAIM OR OTHERWISE. If for any
reason the jury waiver is held to be unenforceable, the parties agree to binding
arbitration  for any dispute  arising out of this Agreement or any claim arising
under any  federal,  state or local  statutes,  laws or  regulations,  under the
applicable  commercial  rules  of the AAA and 9  U.S.C.  ss.  1,  et.  seq.  Any
arbitration (other than an arbitration  pursuant to Section 3.5) will be held in
the New York,  New York  metropolitan  area and be subject to the  Governing Law
provision of this Agreement.  Discovery in the  arbitration  will be governed by
the Local Rules  applicable in the United States District Court for the Southern
District of New York.

     (b) The  agreement of each party to waive its right to a jury trial will be
binding on its successors  and assigns and will survive the  termination of this
Agreement.








                                       72










     IN WITNESS WHEREOF,  this Agreement has been signed by or on behalf of each
of the parties as of the day first above written.

                                 SPRINT CORPORATION


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 CONTRIBUTORS:

                                 APC REALTY & EQUIPMENT COMPANY, LLC


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 AMERICAN PCS COMMUNICATIONS, LLC


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title:  Vice President Mergers & Acquisitions


                                 AMERICAN PCS, L.P.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 MASSPCSCO


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions




                                       73



                                 PCS LEASING COMPANY, L.P.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions



                                 PHILLIECO, L.P.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 SPRINT PCS ASSETS L.L.C.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 SPRINT SPECTRUM EQUIPMENT COMPANY L.P.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions



                                       74






                                 SPRINT SPECTRUM L.P.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 SPRINT SPECTRUM REALTY COMPANY L.P.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 SPRINT TELEPHONY PCS, L.P.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 SPRINTCOM EQUIPMENT COMPANY L.P.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions





                                       75





                                 SPRINTCOM, INC.


                                 By: /s/ Les Meredith
                                 --------------------------------------------
                                 Name:  Les Meredith
                                 Title: Vice President Mergers & Acquisitions


                                 GLOBAL SIGNAL INC.


                                 By: /s/ Wesley R. Edens
                                 --------------------------------------------
                                 Name:  Wesley R. Edens
                                 Title:  Chief Executive Officer and
                                                Chairman of the Board












                                       76






                                    EXHIBIT D





                            MASTER LEASE AND SUBLEASE

                                     BY AND

                                      AMONG

                                  [SPRINT SPV],

                          [APPLICABLE SPRINT ENTITIES],

                                    [LESSEE]

                                       AND

                               GLOBAL SIGNAL INC.











                        Dated as of [_____________, 2005]









                                                     TABLE OF CONTENTS

                                                                                                         
                                                                                                               Page

SECTION 1.            Definitions.................................................................................1
SECTION 2.            Documents..................................................................................17
SECTION 3.            Master Lease Sites and Pre-Lease Sites.....................................................17
SECTION 4.            Ground Leases..............................................................................19
SECTION 5.            Collocation Agreements.....................................................................24
SECTION 6.            Sprint Collocation Space...................................................................26
SECTION 7.            Permitted Use..............................................................................29
SECTION 8.            Access.....................................................................................30
SECTION 9.            Term.......................................................................................30
SECTION 10.           Withdrawal.................................................................................32
SECTION 11.           Rent and Pre-Lease Rent; Sprint Collocation Charge.........................................32
SECTION 12.           Condition of the Sites and Obligations of Lessee...........................................35
SECTION 13.           Requirements for Alterations; Title to Alterations; Addition of Equipment;
                            Work on the Site.....................................................................37
SECTION 14.           Damage to the Site, Tower or the Improvements..............................................38
SECTION 15.           Tower Subtenants; Interference.............................................................40
SECTION 16.           Taxes and Assessments......................................................................42
SECTION 17.           Utilities..................................................................................45
SECTION 18.           Governmental Permits.......................................................................45
SECTION 19.           No Liens...................................................................................47
SECTION 20.           Condemnation...............................................................................48
SECTION 21.           Waiver of Subrogation; Indemnity...........................................................49
SECTION 22.           Subordination of Mortgages.................................................................50
SECTION 23.           Environmental Covenants....................................................................50
SECTION 24.           Insurance..................................................................................53
SECTION 25.           Sprint Right of Alteration and Substitution................................................55
SECTION 26.           Assignment and Subletting..................................................................57
SECTION 27.           Estoppel Certificate.......................................................................59
SECTION 28.           Holding Over...............................................................................59
SECTION 29.           Rights of Entry and Inspection.............................................................59
SECTION 30.           Right to Act for Lessee....................................................................60
SECTION 31.           Defaults and Remedies......................................................................61
SECTION 32.           Quiet Enjoyment............................................................................67
SECTION 33.           No Merger..................................................................................67
SECTION 34.           Broker and Commission......................................................................67
SECTION 35.           Recording of Memorandum of Agreement  or Site Designation Supplement.......................68
SECTION 36.           Purchase Option............................................................................68
SECTION 37.           Net Lease..................................................................................70
SECTION 38.           Compliance with Specific FCC Regulations...................................................71
SECTION 39.           Tax Indemnities............................................................................72
SECTION 40.           Lessee Lender Protections..................................................................82
SECTION 41.           Financeable Sites and Severed Leases.......................................................85
SECTION 42.           Global Parent Guaranty.....................................................................87



                                                                i





SECTION 43.           General Provisions.........................................................................88
SECTION 44.           No Petition; Limited Recourse Against Lessee...............................................91

















                                                                ii







                            MASTER LEASE AND SUBLEASE

     THIS MASTER LEASE AND SUBLEASE (this  "Agreement") is made and entered into
this  [____]  day of 2005  (the  "Effective  Date"),  [Sprint  SPV]  ("Lessor"),
[Applicable   Sprint   Entities]   (collectively,    "Sprint"),    [LESSEE],   a
[______________]  ("Lessee")  and GLOBAL  SIGNAL  INC.,  a Delaware  corporation
("Global  Parent").  Lessor,  Sprint,  Lessee  and Global  Parent are  sometimes
individually  referred to in this Agreement as a "Party" and collectively as the
"Parties".

     WHEREAS Sprint  operates  throughout the United States and its  territories
the Sites,  which  include  Towers and  related  equipment  and,  in some cases,
buildings, and Sprint either owns, ground leases or otherwise has an interest in
the tracts of land on which such Towers are located;

     WHEREAS, Lessee desires to lease or pre-lease the Sites;

     WHEREAS the  obligations set forth in this Agreement are  interrelated  and
required in order for Lessee to lease or pre-lease the Sites;

     In consideration of the premises and other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged,  the Parties agree
as follows:

     SECTION 1. Definitions.

     For purposes of this Agreement,  the following  capitalized  terms have the
following respective meanings:

     "AAA" means the American Arbitration Association or any successor entity.

     "Affiliate"  (and, with a correlative  meaning,  "Affiliated")  means, with
respect to any Person, any other Person that directly, or indirectly through one
or more  intermediaries  controls,  is controlled by, or is under common control
with, such Person.  As used in this  definition,  "control" means the beneficial
ownership  (as such term is defined in Rules  13d-3 and 13d-5 of the  Securities
Exchange Act of 1934, as amended) of more than fifty percent (50%) of the voting
interests of the Person.

     "After-Tax Basis" has the meaning set forth in Section 39(a)(3)(i).

     "Agreement"  means  this has the  meaning  set  forth in the  preamble  and
includes all subsequent modifications and amendments hereof.  References to this
Agreement  in respect of a  particular  Master  Lease Site will include the Site
Designation Supplement therefor; and references to this Agreement in general and
as  applied  to all  Master  Lease  Sites  will  include  all  Site  Designation
Supplements.

     "Agreement to Lease and Sublease" means the Agreement to Contribute,  Lease
and Sublease,  dated as of February 14, 2005, by and among Global Parent, Sprint
Parent and Sprint.





     "Allocated Rent" has the meaning set forth in Section 11(a).

     "Alterations" means the construction or installation of Improvements on any
Site or any  part of any Site  after  the  Effective  Date,  or the  alteration,
replacement,  modification  or addition to all or any  component of a Site after
the Effective Date, whether Severable or Non-Severable.

     "Assumed Rate" has the meaning set forth in Section 39(a)(1)(v).

     "Available Space" means, as to any Site, a Tower location, a portion of the
Land, a portion of the Improvements or any other portion,  space or area of such
Site that is available for lease to or  collocation  by any Tower  Subtenant and
all rights appurtenant to such portion, space or area.

     "Award"  means any  amounts  paid,  recovered  or  recoverable  as damages,
compensation  or proceeds by reason of any Taking,  including  all amounts  paid
pursuant to any agreement  with any Person which was made in settlement or under
threat of any such Taking,  less the reasonable  costs and expenses  incurred in
collecting such amounts.

     "Business Day" means any day other than a Saturday, Sunday or any other day
on which national banks in New York, New York are not open for business.

     "Casualty Notice" has the meaning set forth in Section 14(a).

     "Claims"  means  any  claims,   demands,   actions,   suits,   proceedings,
disbursements,  judgments, damages, penalties, fines, losses, liabilities, costs
and  expenses,   including  reasonable  attorneys'  fees  and  amounts  paid  in
settlements.

     "Code" means the Internal Revenue Code of 1986, as amended.

     "Collateral Agreements" has the meaning set forth in the Agreement to Lease
and Sublease.

     "Collocation  Agreement"  means an agreement  between a Sprint  Contributor
(prior to the date  hereof) or Lessee  (on or after the date  hereof) on the one
hand,  and a third party not an  Affiliate of a Sprint Group Member (on the date
hereof),  on the other  hand,  pursuant  to which such  Sprint  Group  Member or
Lessee,  as applicable,  rents to such third party space at any Site  (including
space  on  a  Tower),  including  all  amendments,  modifications,  supplements,
assignments, guaranties, side letters and other documents related thereto.

     "Communications  Equipment"  means,  as to any  Site,  transmitting  and/or
receiving  equipment  and other  equipment  installed at the Sprint  Collocation
Space (with respect to any Sprint  Collocator)  or any other portion of the Site
(with  respect to a Tower  Subtenant),  which is used in  providing  current and
future  wireless  and  wireline   communication   services,   including  without
limitation,  switches,  antennas,  microwave dishes, panels, conduits,  flexible
transmission lines, cables, radio, amplifiers, filters and other transmission or
communications   equipment  (including   interconnect   transmission  equipment,
transmitter(s),  receiver(s)  and  accessories)  and such  other  equipment  and
associated  software as may be necessary  in order to provide such  wireless and
wireline communication  services,  including without limitation,  voice or data.


                                       2



Communications  Equipment  will  include any  existing,  replaced  and  upgraded
Communications Equipment.

     "Communications Facility" means, as to any Site, (i) the Sprint Collocation
Space,  together  with all of Sprint's  Communications  Equipment  and  Sprint's
Improvements  at such Site (with respect to any Sprint  Collocator)  or (ii) any
other  portion of the Site leased to or used or  occupied by a Tower  Subtenant,
together with all of such Tower  Subtenant's  Communications  Equipment and such
Tower Subtenant's Improvements at such Site (with respect to a Tower Subtenant).

     "Conversion  Closing"  has the meaning set forth in the  Agreement to Lease
and Sublease.

     "Conversion  Closing  Date" has the meaning set forth in the  Agreement  to
Lease and Sublease.

     "CPI" means the Consumer Price Index for all Urban  Consumers,  U.S.,  City
Average  (1982-84  = 100) All  Items  Index,  published  by the  Bureau of Labor
Statistics,  United States Department of Labor. If the CPI ceases to be compiled
and  published at any time during the Term of this  Agreement,  but a comparable
successor  index is compiled and  published  by the Bureau of Labor  Statistics,
United States  Department of Labor,  the  adjustments to the Sprint  Collocation
Charge  provided for in Section 11, if any, and any other  adjustments  provided
for in this  Agreement  which  are  based  on the CPI  Change  will be  computed
according to such successor index, with appropriate  adjustments in the index to
reflect any  differences in the method of  computation  from the CPI. If, at any
time  during  the  Term  of this  Agreement,  neither  the CPI nor a  comparable
successor index is compiled and published by the Bureau of Labor Statistics, the
index for "all items"  compiled and  published by any other branch or department
of the  federal  government  will  be used as a  basis  for  calculation  of the
CPI-related  adjustments to the Sprint  Collocation  Charge provided for in this
Agreement,  and if no such  index is  compiled  and  published  by any branch or
department of the federal government,  the statistics  reflecting cost of living
increases  or  decreases,  as  applicable,  as  compiled by any  institution  or
organization or individual generally recognized as an authority by financial and
insurance institutions will be used.

     "CPI Change" means an increase, if any (expressed as a positive percentage)
in the most recently published CPI as of any applicable CPI Change Date from the
CPI published as of the  corresponding  month for the calendar year  immediately
preceding the calendar year of publication of such most recently published CPI.

     "CPI  Change  Date"  means  January  1,  2006 and  January  1 of each  year
thereafter during the Term of this Agreement.

     "Date of Taking"  means the earlier of (a) the date upon which title to any
Site,  or any  portion  of such  Site,  subject  to a Taking  is  vested  in the
condemning  authority,  or (b) the date upon  which  possession  of such Site or
portion such Site is taken by the condemning authority.

     "Decision Period" has the meaning set forth in Section 31(h).

     "Default Notice" has the meaning set forth in Section 4(f).


                                       3




     "Effective Date" has the meaning set forth in the preamble.

     "Emergency" has the meaning set forth in Section 30(b).

     "Environmental  Condition"  has the meaning set forth in the  Agreement  to
Lease and Sublease.

     "Environmental Law" has the meaning set forth in Section 23(a).

     "Equipment"  means  all  physical  assets  (other  than real  property  and
interests  in real  property),  located  at the  applicable  Site  on or in,  or
attached to, the Land,  Improvements  or Towers  leased to or operated by Lessee
pursuant to this  Agreement  and  includes,  without  limitation,  to the extent
existing  at a Site  on the  Effective  Date,  all of the  items  listed  on the
attached  Schedule 1. With  respect to any item of or interest in real  property
included in the Leased  Property of any Site,  any fixture  (other than  Towers)
attached to that real property is "Equipment" related thereto.  "Equipment" does
not  include any  intellectual  property or  intangible  rights or any  Excluded
Equipment.

     "Excluded  Assets" has the meaning set forth in the  Agreement to Lease and
Sublease.

     "Excluded  Equipment"  has the meaning set forth in the  Agreement to Lease
and Sublease.

     "Excluded  Purchase  Sites" means (i) any Pre-Lease  Site pursuant to which
Lessee,  in its  reasonable  discretion,  determines  that the  transfer of such
Pre-Lease  Site  pursuant to the Purchase  Option would violate the terms of the
applicable  Ground  Lease,  license  or other  agreement  pursuant  to which the
applicable  Sprint  Contributor  has a possessory  right in such Pre-Lease Site,
(ii) any Site where the Ground Lease has previously terminated or (iii) any Site
that Lessee has previously purchased from Lessor.

     "Expiring  Ground Rent" means the aggregate base Ground Rent payable during
the last term of the expiring Ground Lease for which renewal is being sought.

     "FAA"  means the  United  States  Federal  Aviation  Administration  or any
successor Federal Governmental Authority performing a similar function.

     "FCC" means the United  States  Federal  Communications  Commission  or any
successor Federal Governmental Authority performing a similar function.

     "Federal  Depreciation  Deductions"  has the  meaning  set forth in Section
39(a)(1)(ii).

     "Federal Income Tax Benefits" means the Federal Depreciation Deductions and
the federal income tax deductions described in Section 39(a)(1)(iii).

     "Final  Non-Financeable  Sites  Statement"  means the means the Preliminary
Non-Financeable Sites Statement as finally determined pursuant to Section 41(c).

     "Financial Advisors" has the meaning set forth in Section 34.


                                       4



     "Financeable  Site" means a Master  Lease Site with  respect to which:  (i)
Lessee,  if it so elects,  has  obtained  title  insurance  insuring its and its
lenders'  interests,  subject  only to  Permitted  Encumbrances  and such  other
matters as are reasonably  acceptable to Lessee, with a coverage amount equal to
no less than the Rent paid by Lessee for such Master  Lease Site,  (ii) a Ground
Lessor Estoppel from any ground lessor and a Non-Disturbance  Agreement from any
ground lessor lenders, in each case with such modifications or changes as may be
reasonably  acceptable to Lessee (so long as such  modifications or changes,  if
more burdensome to ground lessor or lender, as applicable,  than those set forth
on Exhibit J or Exhibit K to the Agreement to Lease and Sublease, as applicable,
will not be required  for  purposes  of  establishing  whether a "Ground  Lessor
Estoppel" has been  obtained)  has been obtained for the benefit of Lessee,  its
lenders and their respective successors and assigns,  (iii) the other Individual
Site Closing Conditions have been satisfied,  and (iv) any Collocation Agreement
that  applies to such  Master  Lease Site as well as to other Sites that are not
otherwise  Financeable  Sites (for example,  as a result of a failure to satisfy
the  Environmental  Conditions)  may be severed without the consent of any third
party,  or has been severed with such  consent,  in order to permit at least one
separate financing of such Master Lease Site.

     "Financial  Statements" has the meaning set forth in the Agreement to Lease
and Sublease.

     "Global Parent" has the meaning set forth in the preamble.

     "Governmental   Approval"   means  all   licenses,   permits,   franchises,
certifications,   waivers,  variances,   registrations,   consents,   approvals,
qualifications  and  other  authorizations  to,  from or with  any  Governmental
Authority.

     "Governmental Authority" means any foreign, domestic, federal, territorial,
state or local governmental authority,  administrative body,  quasi-governmental
authority,  instrumentality,  court, government or self-regulatory organization,
commission,  board,  administrative hearing body, arbitration panel, tribunal or
organization or any regulatory, administrative or other agency, or any political
or other subdivision, department or branch of any of the foregoing.

     "Ground  Lease"  means,  as to a Leased Site or Other  Interest  Site,  the
ground lease and/or any related easement, license or other agreement or document
pursuant to which Lessor or any Sprint  Contributor holds a leasehold  interest,
leasehold  estate,  easement,  license or other interest in such Site,  together
with any renewals or extensions of the term thereof  (whether by exercise of any
right or option contained therein or by execution of a new ground lease or other
instrument  providing for the use of such Site),  and including all  amendments,
modifications,  supplements,  assignments,  guarantees,  side  letters and other
documents related thereto.

     "Ground  Lessor"  means,  as to a Leased Site or Other  Interest  Site, the
"lessor",  "landlord",  "licensor",  or similar  Person under the related Ground
Lease.

     "Ground Lessor  Estoppel" means, as to a Ground Lease, an estoppel from the
ground lessor  thereunder for the benefit of Lessee,  its successor and assigns,
lenders and rating agencies,  in substantially the form of Exhibit J attached to
the Agreement to Lease.


                                       5




     "Ground  Rent" means,  as to any Site,  all rents,  fees and other  charges
payable by Lessor to the Ground Lessor under the Ground Lease for such Site.

     "GSI  Financing  Subsidiary"  means any Person  formed as an  Affiliate  of
Lessee to be the lessee under a Severed Lease as described in Section 41(e).

     "Hazardous Material" has the meaning set forth in Section 23(a).

     "Improvements"  means,  as to each Site,  (a) one or more equipment pads or
raised  platforms  capable  of  accommodating  exterior  cabinets  or  equipment
shelters, huts or buildings, electrical service and access for the placement and
servicing of the Sprint Collocator's and, if applicable,  each Tower Subtenant's
Improvements; (b) buildings, huts, shelters or exterior cabinets; (c) generators
and associated fuel tanks; (d) grounding rings;  (e) fencing;  (f) signage;  (g)
connections  for utility  service up to the meter;  (g) hardware  constituting a
tower platform to hold the Sprint  Collocator's  and, if applicable,  each Tower
Subtenant's  Communications Equipment; (i) access road improvements;  (j) common
shelters, if any; (k) all lighting systems and light monitoring devices; and (l)
such other equipment, alterations, replacements,  modifications,  additions, and
improvements  as may be installed  on or made to all or any  component of a Site
(including the Land and the Tower).  Improvements do not include  Communications
Equipment.

     "Inclusion" means the inclusion in the income of any Sprint Group Member of
any  amount  realized  in  connection  with the  transactions  effected  by this
Agreement  or related  documents  other than the  amounts  described  in Section
39(a)(1)(iv).

     "Individual  Site  Closing  Conditions"  has the  meaning  set forth in the
Agreement to Lease and Sublease.

     "Individual  Site Prepaid Rent" means the portion of the Rent  attributable
to each Site, as set forth in Exhibit H hereto.

     "Initial Master Lease Sites" has the meaning set forth in the definition of
"Master Lease Site."

     "Land" means, as to each Site, the tract of land  constituting a portion of
such Site, together with all easements and other rights appurtenant thereto.

     "Landlord  Reimbursement  Taxes"  means,  with  respect to a Leased Site or
Other Interest Site, if the applicable  Ground Lease provides that Ground Lessor
may  pass-through any Taxes assessed against the Ground Lessor to the applicable
ground  lessee,  the  amount of such  Taxes for which the  Ground  Lessor  seeks
reimbursement  from the ground lessee or its assigns under the provisions of the
Ground Lease.

     "Law" means any statute, rule, code, regulation, ordinance,  interpretation
or Order of, or issued by, any Governmental Authority.

     "Leased Property" means, with respect to each Site, (a) the Land related to
such  Site,  and (b) the  Tower  located  on such  Site  (including  the  Sprint
Collocation   Space),  in  each  case  together  with  the  related   Equipment,
Improvements   (excluding  Sprint's   Improvements  and  any


                                       6




Tower  Subtenant's  Improvements)  and the Tower Related  Assets with respect to
such Site;  provided,  however,  that no leasehold,  subleasehold  or other real
property  interest is granted pursuant to Section 3(b) in the Leased Property at
any Pre-Lease Site until the Conversion  Closing for such Pre-Lease Site (to the
extent same would cause a default under any Ground Lease).

     "Leased Site" means the Sites identified on Exhibit A as Leased Sites.

     "Lessee" has the meaning set forth in the preamble.

     "Lessee  Competitor"  means  a  Person,  that  conducts  as  a  significant
component  of  its  business,   the   management,   operation  or  marketing  of
communications towers, and does not provide wireless  communications services as
a substantial portion of its business.

     "Lessee  Indemnitee"  means  Lessee and its  Affiliates,  and its and their
respective directors, officers, employees, agents and representatives.

     "Lessee  Lender"  means the  holder(s)  of any loan  secured  by all or any
portion of Lessee's  interests (or any of them) hereunder or with respect to any
Site,  including,  without limitation,  a collateral assignment of any rights of
Lessee  hereunder  or under any related  agreements  or secured by the pledge of
equity  interests in Lessee (each, a "Secured  Lessee Loan"),  together with the
heirs, legal representatives,  successors,  transferees, nominees and assigns of
such holder(s).

     "Lessee Negotiated Renewal" has the meaning set forth in Section 4(c).

     "Lessee Obligations" has the meaning set forth in Section 42(a).

     "Lessee  Property  Tax Charge"  means,  as to any Site,  the annual  amount
payable to Lessor by Lessee for Lessee's  portion of Property Taxes with respect
to such Site  pursuant to this  Agreement in an amount equal to $1,975 per annum
(prorated for partial  years)  subject to an annual  increase on each CPI Change
Date equal to three percent (3%).

     "Lessee Permitted Liens" means, as to any Site, collectively:  (a) liens in
respect of Property  Taxes or other Taxes that are not yet delinquent as long as
no foreclosure,  distraint, sale or similar proceedings have been commenced with
respect thereto;  (b) general utility,  roadway and other easements or rights of
way which do not or would not reasonably be expected to,  individually or in the
aggregate,  materially adversely affect the use or operation of the Tower and/or
Site as a  telecommunications  tower facility;  (c) rights of, or by, through or
under Persons  leasing,  licensing or otherwise  occupying space on any Tower or
otherwise utilizing any Tower pursuant to any Collocation  Agreement as provided
therein; (d) all Liens and other matters of public record against the underlying
real  property  interest of any ground  lessor under any ground  lease;  (e) the
terms and provisions of any ground lease as provided  therein;  (f) any Mortgage
granted by Lessee in  connection  with a Secured  Lessee  Loan;  (g) any Lien or
right  created  by  Persons  other than  Lessee or its  Affiliates  prior to the
Effective  Date; and (h) any Lien or right  otherwise  caused or consented to by
Sprint or any other Sprint Group Member.

     "Lessee Work" has the meaning set forth in Section 13(b).


                                       7




     "Lessor Negotiated Renewal" has the meaning set forth in Section 4(d).

     "Liens" means,  with respect to any asset,  any mortgage,  guaranty,  lien,
pledge, security interest, charge, attachment, restriction or encumbrance of any
kind in respect of such asset.

     "Master  Lease Site" means any Site (as defined in the  Agreement  to Lease
and Sublease)  (a) which is subject to this  Agreement as a Master Lease Site as
of the Effective  Date as  identified  in Exhibit A (the  "Initial  Master Lease
Sites");  and (b) any Site  added to this  Agreement  as a Master  Lease Site as
provided herein.

     "Mortgage"  means, as to any Site, any mortgage,  deed to secure debt, deed
of trust,  trust deed and/or other  conveyance of, or encumbrance  against,  the
right,  title and interest of a Party in and to the Land, Tower and Improvements
on such Site as security for any debt, whether now existing or hereafter arising
or created.

     "Mortgagee"  means,  as to any Site,  the holder of any Mortgage,  together
with the heirs, legal  representatives,  successors,  transferees and assigns of
the holder.

     "Non-Collocation Sites" has the meaning set forth in Section 6(c).

     "Non-Financeable   Site  Financing  Cost"  means,   with  respect  to  each
Non-Financeable Site included in the Final Non-Financeable  Sites Statement,  an
amount equal to the product of (x) 12% of the aggregate  Individual Site Prepaid
Rent attributable to the Non-Financeable Sites and (y) a fraction, the numerator
of which is the amount of debt (not to exceed  $850,000,000)  Lessee  obtains in
connection  with the  consummation  of the  transactions  under the Agreement to
Lease and Sublease and the denominator of which is the aggregate of the Rent and
Pre-Lease Rent, payable on the date hereof.

     "Non-Financeable   Sites  Supporting   Documentation"  means  all  relevant
documentation  reasonably  requested  by Lessor to verify  the  accuracy  of the
Preliminary Non-Financeable Sites Statement.

     "Non-Restorable  Site"  means a Site that has  suffered  a  casualty  which
damages or destroys all or a Substantial  Portion of any Site that constitutes a
non-conforming  use under applicable  Zoning Laws prior to such casualty and for
which  Restoration  requires under applicable Zoning Laws either (i) obtaining a
change in the zoning  classification of the Site under applicable Zoning Laws or
Zoning Laws would not allow Lessee to rebuild a comparable  replacement tower on
the  Site  substantially  similar  to the  Tower  damaged  or  destroyed  by the
casualty, (ii) the filing and prosecution of a lawsuit or other legal proceeding
in a court of law, or (iii) any other permit or approval under applicable Zoning
Laws that cannot be obtained by Lessor,  using commercially  reasonable efforts,
in a period of time that will enable Restoration to be commenced (and a building
permit issued) within one (1) year after the casualty.

     "Non-Severable" means, with respect to any Alteration,  any Alteration that
is not a Severable Alteration.


                                       8




     "Ongoing  Revenue  Sharing  Payment"  means a Sprint  Contributor's  and/or
Lessor's  share of any Shared Ground Rent Increase  Payment that is payable to a
Ground Lessor in installments rather than a one-time lump sum payment.

     "Option  Purchase  Price"  means,  with  respect  to each  Site,  the fixed
purchase price for such Site in the event Lessee  exercises its purchase  option
with respect to such Site under  Section 36 of this  Agreement,  as specified in
Exhibit H.

     "Option Sellers" has the meaning set forth in Section 36(a).

     "Option Trigger Window" has the meaning set forth in Section 36(a).

     "Other  Interest  Sites" means the Sites  identified  on Exhibit A as Other
Interest Sites.

     "Owned Site" means the Sites identified on Exhibit A as Owned Sites.

     "Parties" has the meaning set forth in the preamble.

     "Party" has the meaning set forth in the preamble.

     "Permitted  Act" means any act expressly  permitted  under the  Transaction
Documents;  provided  that  the use and  operation  of the  Leased  Property  in
commercial  service in the manner  that the Lessee or its  Affiliates  currently
uses and operates  similar property in the tower business shall be considered to
be expressly permitted (provided that such use and operation is not in violation
of the  Transaction  Documents);  provided  further  that,  notwithstanding  the
foregoing,  the following shall not be Permitted  Acts: (i) any  substitution or
replacement  of the Leased  Property;  (ii) any merger or  consolidation  of the
Lessee  or its  Affiliates;  (iii) any  modification,  alteration,  addition  or
improvement to the Leased Property, in each case, which fails to comply with the
provisions  of Rev.  Proc.  2001-28,  2001-1 C.B.  1156;  (iv) any  voluntary or
involuntary  case or  proceeding  seeking  relief of debts of the  Lessee or its
Affiliates,  (v) any  assignment  of the Lessee's  interest in the  transactions
contemplated by the Transaction Documents; (vi) the entry into a New Lease under
Section 40 of this  Agreement;  and (vii) any severance of this Agreement  under
Section 41.

     "Permitted  Encumbrances"  has the  meaning set forth in the  Agreement  to
Lease and Sublease.

     "Permitted   Use"  means  use  of  each  Site  for  the  purposes  of:  (a)
constructing,  installing, operating, repairing, altering, managing, maintaining
and  marketing  the  Tower and  Improvements  of each  Site and  making  further
Improvements to such Site as permitted under this Agreement,  and (b) the use of
such Site by the applicable Sprint Collocator and its Affiliates with respect to
the Sprint  Collocation Space or any Available Space at such Site subject to the
terms of the Collocation Agreements and this Agreement,  as the case may be, and
(c)  the  use by  Tower  Subtenants  of any  portions  of the  Land,  Tower  and
Improvements  of such Site  (including  any  Available  Space) as is  reasonably
necessary  for  operation  of  the  Communications   Facilities  of  such  Tower
Subtenants  subject  to  the  terms  of  the  Collocation  Agreements  and  this
Agreement.



                                       9



     "Person" means any individual,  corporation,  limited liability company (or
series  thereof),  partnership,  association,  trust  or  any  other  entity  or
organization, including a Governmental Authority.

     "Pre-Lease Rent" has the meaning set forth in Section 11(b).

     "Pre-Lease  Site" means each Site which is subject to this  Agreement  as a
Pre-Lease  Site  as of  the  Effective  Date  as  identified  (and  specifically
described  with the same  amount  of  detail  as would be in a Site  Designation
Supplement) in Exhibit A, until such Site is converted to a Master Lease Site as
provided herein.  "Preliminary  Non-Financeable Sites Statement" has the meaning
set forth in Section 41(c)(i).

     "Preliminary  Non-Financeable Sites Statement" has the meaning set forth in
Section 41(c)(i).

     "Prime  Rate"  means the rate of  interest  reported  in the "Money  Rates"
column or section of The Wall  Street  Journal  (Eastern  Edition)  as being the
prime rate on corporate loans of larger U.S. Money Center Banks.

     "Proceeds"  means all insurance  moneys recovered or recoverable by Lessor,
Lessee or any Sprint  Collocator as compensation for casualty damage to any Site
(including the Tower and Improvements of such Site).

     "Property  Taxes"  means,  as to each  Site,  any and all of the  following
levies,  assessed or imposed upon, against or with respect to the Site, any part
of the Site, or the use and occupancy of the Site at any time during the Term as
to such Site (whether imposed directly by a Governmental Authority or indirectly
through any other  Persons,  and including any  penalties,  fines,  and interest
related  thereto):  (a) real property and personal property ad valorem taxes and
assessments (other than Taxes imposed on Lessee by a Governmental Authority with
respect to Improvements  treated as being owned by Lessee);  (b) charges made by
any public or quasi public authority for improvements or betterments  related to
the Site (other than Taxes imposed on Lessee by a  Governmental  Authority  with
respect to Improvements treated as being owned by Lessee); (c) sanitary taxes or
charges,  sewer or water taxes or charges,  and (d) any other tax imposed solely
as a result of ownership of the Leased  Property  similar to the Taxes described
in (a) through (c), in each case other than Landlord Reimbursement Taxes.

     "Purchase Option Closing Date" means ________, 2037.

     "Purchase  Sites" means all Sites then subject to the terms and  provisions
of this Agreement that are not Excluded Purchase Sites.

     "Qualifying  Lessee  Transferee" means a Person who has outstanding  senior
unsecured debt securities or comparable long term obligations rated B- or higher
by  Standard & Poor's  Ratings  Services  or B3 or higher by  Moody's  Investors
Service.

     "Qualifying  Sprint  Transferee" means a Person who has outstanding  senior
unsecured  debt  securities or comparable  long term  obligations  rated BBB- or
higher by  Standard  & Poor's  Ratings  Services  or Baa3 or  higher by  Moody's
Investors Service.


                                       10





     "Ratable  Global Parent  Maximum  Obligation"  has the meaning set forth in
Section 41(d).

     "Reimbursable Costs" has the meaning set forth in Section 18(f).

     "Reimbursable  Maintenance  Expenses"  has the meaning set forth in Section
30(a).

     "Release" has the meaning set forth in Section 23(a).

     "Renewal  Ground Rent" means the aggregate base Ground Rent  (including any
periodic  escalations  thereof)  payable  during the initial  term of any Lessee
Negotiated Renewal or Lessor Negotiated Renewal.

     "Rent" has the meaning set forth in Section 11(b).

     "Rent Payment  Period" means, as to each Site, the taxable period set forth
in Exhibit A.

     "Restoration"  means, as to a Site that has suffered  casualty damage or is
the subject of a Taking, such restoration,  repairs,  replacements,  rebuilding,
changes  and  alterations,  including  the  cost of  temporary  repairs  for the
protection  of such Site,  or any  portion of such Site  pending  completion  of
action,  required  to  restore  the  applicable  Site  (including  the Tower and
Improvements on such Site but excluding any of Sprint's Communications Equipment
or  Improvements  the restoration of which shall be the sole cost and obligation
of  Sprint)  to a  condition  which is at least as good as the  condition  which
existed  immediately  prior to such damage or Taking (as  applicable),  and such
other changes or alterations  as may be reasonably  acceptable to the applicable
Sprint Collocator and Lessee or required by Law.

     "Revenue  Sharing  Payment"  means any  additional  amounts  payable to any
Ground  Lessor as a Shared  Ground Lease  Payment  under (i) any Ground Lease in
effect as of the  Effective  Date,  (ii)  renewals and  extensions of any Ground
Lease executed after the Effective Date pursuant to terms  contained  therein on
the  Effective  Date or (iii)  any  renewals  or  extensions  of a Ground  Lease
executed  after the  Effective  Date that do not  increase  any revenue  sharing
percentage beyond the amount immediately prior to the effectiveness thereof.

     "Right of  Substitution"  means the right of a Sprint  Collocator to remove
its  Communications  Equipment from the Sprint  Collocation  Space at a Site and
move same to Available  Space on such Site by relocation  of its  Communications
Facility on such Site to a portion of such  Available  Space not larger than the
Sprint  Tower  Envelope,  in  accordance  with and  subject  to the  limitations
contained in Section 25.

     "Section 467 Loan" has the meaning set forth in Section 11(f).

     "Secured  Lessee  Loan"  has the  meaning  set forth in the  definition  of
"Lessee Lender".

     "Severable" means, with respect to any Alteration,  any Alteration that can
be readily  removed from a Site or portion of such Site  without  damaging it in
any material  respect or without  diminishing  or impairing the value,  utility,
useful life or condition that the Site or portion of such Site would have had if
such  Alteration  had not been made  (assuming  the Site or portion


                                       11



of such Site would have been in  compliance  with this  Agreement  without  such
Alteration),  and  without  causing  the Site or  portion of such Site to become
"limited use property"  within the meaning of Rev.  Proc.  2001-28,  2001-1 C.B.
1156.  Notwithstanding  the  foregoing,  an  Alteration  will not be  considered
Severable if such  Alteration is necessary to render the Site or portion of such
Site complete for its intended use by Lessee (other than Alterations  consisting
of ancillary  items of Equipment of a kind  customarily  furnished by lessees or
operators of property comparable to the Site or portion of such Sites).

     "Severed  Lease"  means a lease and sublease in  substantially  the form of
this Agreement, with appropriate changes to reflect the fact that this Agreement
has been so severed.

         "Severed Site" means the Sites severed from this Agreement pursuant to
Section 41.

     "Shared Ground Lease Payment" has the meaning set forth in the Agreement to
Lease and Sublease.

     "Shared  Ground Rent  Increase  Payment"  means,  as to any Site, an amount
equal to (i) fifty  percent  (50%) of the  Renewal  Ground Rent under any Lessee
Negotiated Renewal or any Lessor Negotiated Renewal exceeding one-hundred thirty
percent (130%) of the Expiring Ground Rent for such Site up to and including one
hundred sixty  percent  (160%) of the Expiring  Ground Rent for such Site,  plus
(ii) one hundred  percent (100%) of the portion of the Renewal Ground Rent under
such  Lessee  Negotiated  Renewal or Lessor  Negotiated  Renewal  exceeding  one
hundred  sixty  percent  (160%) of the Expiring  Ground Rent for such Site.  The
foregoing  assumes the term of the  applicable  Ground  Lease for which  Renewal
Ground Rent and Expiring  Ground Rent are calculated  are of equivalent  length,
and, if not of equivalent  length, the period over which the Ground Rent for the
Expiring Ground Lease shall be calculated  shall match the length of the term of
the Lessee Negotiated Renewal or Lessor Negotiated Renewal, as applicable.

     "Site" means any Master Lease Site or Pre-Lease Site, as applicable, now or
hereafter subject to this Agreement.  As used in this Agreement,  reference to a
Site  (including any reference to a Master Lease Site or a Pre-Lease  Site) will
include the Land, the Tower, the Improvements  (excluding Severable Alterations)
and  Non-Severable  Alterations  but will not include  Sprint's  Improvements or
Sprint's Communications Equipment or any Tower Subtenant's Improvements or Tower
Subtenant's  Communications  Equipment and in each case shall include all of the
Leased Property with respect to such Site.

     "Site  Designation  Supplement"  means,  as to any  Master  Lease  Site,  a
supplement to this Agreement, in substantially the form of Exhibit B attached to
this Agreement.

     "Site  Expiration Date" means, as to any Site, (a) as to an Owned Site, the
Site Expiration Outside Date and (b) as to a Leased Site or Other Interest Site,
the  sooner  to occur of (i) one day  prior to the  expiration  of the  relevant
Ground  Lease (as the same may be extended  or renewed  pursuant to the terms of
this Agreement), or (ii) the Site Expiration Outside Date.

     "Site  Expiration  Outside Date" means, as to any Site,  _________________,
2037.

     "Sprint" has the meaning set forth in the preamble.


                                       12




     "Sprint Buffer Zone" has the meaning set forth in Section 6(b).

     "Sprint Collocation Charge" has the meaning set forth in Section 11(b).

     "Sprint  Collocation Space" means, as to each Site: (a) the portions of the
Land and  Improvements  comprising  the Site used or occupied  exclusively  by a
Sprint  Collocator  or its  Affiliates,  or on which  any  portion  of  Sprint's
Communications  Facility is located,  operated or maintained as of the Effective
Date (including,  without  limitation,  portions of the Land and Improvements on
which  switches and other of Sprint's  Communications  Equipment are located and
the air space  above such  portion of the Land and  Improvements  (to the extent
such air space is not occupied by a third party on the Effective Date)), (b) the
portion  of the Tower on the Site on or within  which any  portion  of  Sprint's
Communications  Facility is located,  operated or maintained as of the Effective
Date (including without limitation, portions of the Tower on which any antennas,
transmission lines,  amplifiers and filters are located), plus (in the event the
Sprint  Collocator  maintains fewer than nine (9) 1' x 6' panel antennas on such
Tower as of the Effective  Date) an additional  portion of the Tower on the Site
that  will  enable  the  Sprint  Collocator  to  locate,  operate  and  maintain
Communications  Equipment  on the  Tower  consisting  of an  aggregate  (or  the
equivalent  weight  and wind  loading)  of no more  than  nine (9) 1' x 6' panel
antennas  and related  equipment  extending  not more than eight (8)  contiguous
vertical feet on such Tower,  with no more than nine (9) lines of co-axial cable
not to exceed 1-5/8 inch in diameter (provided any space for such co-axial cable
constitutes  a  non-exclusive  easement,  available  for use by Lessee and other
Tower  Subtenants);  and (c) any and all rights pursuant to Sections 6(b) and 25
and  all  appurtenant   rights   reasonably   inferable  to  permit  the  Sprint
Collocator's full use and enjoyment of the Sprint Collocation  Space,  including
without  limitation,  the  rights  specifically  described  in Section 6, all in
accordance with Section 6.

     "Sprint   Collocator"   means  the  applicable  Sprint  Group  Member  that
subleases,  leases back or otherwise  uses and  occupies the Sprint  Collocation
Space at each  Site as  designated  on  Exhibit A and such  Sprint  Collocator's
permitted successors and assigns hereunder,  to the extent same are permitted to
succeed to such Sprint Collocator's rights hereunder.

     "Sprint  Contributor"  means each Sprint  Group  Member that is a Party and
which,  at any applicable  time during the Term of this  Agreement,  has not yet
contributed its right,  title and interest in the Leased Property at a Pre-Lease
Site to Lessor pursuant to the Agreement to Lease and Sublease.

     "Sprint  Group"  means,  collectively,  Sprint  Parent  and its  Affiliates
(including  Lessor)  whose  names are set forth in the  signature  pages of this
Agreement  and any  Affiliate  of  Sprint  Parent  which at any time  becomes  a
"sublessor"  under this  Agreement in  accordance  with the  provisions  of this
Agreement.  Each member of the Sprint Group is herein a "Sprint  Group  Member".
Solely for  purposes of Section 39, the term  "Sprint  Group" will  include each
Sprint Group Member,  the affiliated  group of  corporations  and each member of
such group  within the meaning of Code  Section  1504 of which any Sprint  Group
Member is or will  become a member if such group will have filed a  consolidated
return; if applicable, each member in any entity classified as a partnership for
federal  income tax  purposes  and such entity  itself if and to the extent such
entity is treated as the tax owner of any of the Sites or  portions of the Sites
or such entity is a direct or indirect partner in another entity classified as a
partnership which is so treated



                                       13




(in either case, a "Sprint Partnership");  and, if applicable,  any entity owned
by a Sprint Group Member or an Sprint  Partnership  that for federal  income tax
purposes is disregarded as an entity separate from its owner.

     "Sprint  Indemnitee"  means Lessor,  each Sprint  Contributor,  each Sprint
Collocator and their  respective  Affiliates,  directors,  officers,  employees,
agents and  representatives  (except Lessee and its Affiliates and any agents of
Lessee or its Affiliates).

     "Sprint Market Assignee" has the meaning set forth in Section 26(b).

     "Sprint Parent" means Sprint Corporation, a Kansas corporation.

     "Sprint Partnership" has the meaning set forth in the definition of "Sprint
Group".

     "Sprint Tower  Envelope"  means, as to each Site, the portion of the Sprint
Collocation  Space on the  Tower on the Site  that will  enable  the  applicable
Sprint  Collocator  to locate,  operate  and  maintain  Sprint's  Communications
Equipment on the Tower consisting of an aggregate (or the equivalent  weight and
wind loading) of nine (9) 1' x 6' panel antennas and related equipment extending
not more than eight (8) contiguous vertical feet on such Tower.

     "Sprint Transfer" has the meaning set forth in Section 26(b).

     "Sprint's  Communications  Equipment"  means any  Communications  Equipment
owned  or  leased  (other  than  from  Lessee)  by a  Sprint  Collocator  or its
Affiliates.

     "Sprint's  Improvements"  means any Improvements of a Sprint  Collocator or
its Affiliates located at a Site, solely with respect to Sprint's Communications
Equipment.

     "Standard Procedures" has the meaning set forth in Section 13(b)(ii).

     "Substantial  Portion of any Site" means, as to a Site, so much of the such
Site (including the Land, Tower and Improvements of such Site, or any portion of
such Site) as,  when  subject  to a Taking or damage as a result of a  casualty,
leaves the untaken or undamaged  portion  unsuitable for the continued  feasible
and economic operation of such Site for the Permitted Use.

     "Substitution"  means the  relocation  by any Sprint  Collocator on a Site,
pursuant to its Right of Substitution.

     "Super Fund" has the meaning set forth in Section 23(a).

     "Super Lien" has the meaning set forth in Section 23(a).

     "Taking" means,  as to any Site, any  condemnation or exercise of the power
of  eminent  domain by any  Governmental  Authority,  or any taking in any other
manner for public use, including a private purchase, in lieu of condemnation, by
a public authority.

     "Taxes" means all forms of taxation,  whenever created or imposed,  whether
imposed by a local,  municipal,  state,  foreign,  Federal or other Governmental
Authority,   and  whether  imposed


                                       14




directly by a  Governmental  Authority or  indirectly  through any other Person,
and, without limiting the generality of the foregoing,  will include any income,
gross  receipts,  ad  valorem,  excise,   value-added,   sales,  use,  transfer,
franchise,  license,  stamp,  occupation,   withholding,   employment,  payroll,
personal property, real property or environmental tax, levy, charge, assessment,
fee  or  premium,  together  with  any  interest,  penalty,  addition  to tax or
additional amount imposed by a Governmental  Authority or indirectly through any
other Person.

     "Tax Assumptions" has the meaning set forth in Section 39(a)(1).

     "Tax Claim" has the meaning set forth in Section 39(d).

     "Tax Indemnitee" has the meaning set forth in Section 39(a)(3)(i).

     "Tax Indemnity Notice" has the meaning set forth in Section 39(a)(3)(i).

     "Tax Loss" has the meaning set forth in Section 39(a)(3)(i).

     "Technical Closing" has the meaning set forth in the Agreement to Lease and
Sublease.

     "Ten Year Withdrawal Date" has the meaning set forth in Section 10(a).

     "Term" means: (i) as to this Agreement, the term set forth in Section 9(a);
and (ii) as to each Site,  the term during which this Agreement is applicable to
such Site.

     "Tower Related Assets" means, with respect to each Tower, (a) to the extent
such  rights are  assignable  to Lessee,  all rights to any  warranties  held by
Lessor with respect to such Tower (or the related Site) prior to the date hereof
(and if such rights  cannot be granted to Lessee,  such rights shall be enforced
by the applicable Sprint  Collocator,  at Lessee's cost, at the direction of and
for the benefit of Lessee),  (b) to the extent  such  rights are  assignable  to
Lessee,  all rights  under any  Governmental  Approvals  held  exclusively  with
respect to the  ownership or operation of such Tower (and of the related Site if
such Site is an Owned Site) prior to the date hereof (and if such rights  cannot
be granted to Lessee,  such rights  shall be enforced by the  applicable  Sprint
Contributor,  at  Lessee's  cost,  at the  direction  of and for the  benefit of
Lessee), (c) to the extent such rights may be granted to Lessee, a sublicense or
other right to use any Governmental  Approvals not held exclusively with respect
to, but held in part for the  benefit of, the  ownership  or  operation  of such
Tower (and of the related  Site if such Site is an Owned  Site),  and (d) copies
of, or  extracts  from,  all  current  files and  records of Lessor or any other
Sprint Group Member  solely  related to the  ownership,  occupancy or leasing of
such Tower (and of the related Site if such Site is an Owned  Site),  or, to the
extent not so solely  related,  appropriate  extracts  thereof.  "Tower  Related
Assets"  does not include any  intellectual  property  or  intangible  rights or
Excluded Assets.

     "Tower Removal Bonds" means,  collectively,  any bonds,  letters of credit,
deposits or other security  interests  relating to the removal of a Tower from a
Site.

     "Tower  Subtenant" means, as to any Site, any Person (other than any Sprint
Collocator),  which:  (a)  is a  "sublessee"  under  any  Collocation  Agreement
affecting  such Site;  or (b)  subleases,  licenses or otherwise  acquires  from
Lessee the right to use Available Space on such Site.


                                       15



     "Tower  Subtenant's  Communications  Equipment"  means  any  Communications
Equipment owned or leased (other than from Lessee) by a Tower Subtenant.

     "Tower  Subtenant's  Improvements"  means  the  Improvements  of any  Tower
Subtenant located at any Site.

     "Towers" means the communications towers on the Sites.

     "Transaction  Documents"  means this Agreement,  the Agreement to Lease and
Sublease,  the Collateral  Agreements and all other  documents to be executed by
the Parties in connection with the consummation of transactions  contemplated by
the Agreement to Lease and Sublease and this Agreement.

     "Transfer Taxes" has the meaning set forth in Section 16(d).

     "Transition Services Agreement" has the meaning set forth in Section 12(c).

     "Unamortized  Rent" means,  for any applicable Site, an amount equal to the
product of (x) the Rent or Pre-Lease  Rent, as applicable for such Site, and (y)
a  fraction,  the  numerator  of which is the number of years (to three  decimal
places)  remaining  from and after  the  applicable  measuring  date to the Site
Expiration Outside Date and the denominator of which is thirty-two (32).

     "Unpaid Amount" has the meaning set forth in Section 11(d).

     "Withdrawal  Cause"  means,  as to any Site,  the  inability  of the Sprint
Collocator (after using commercially  reasonable  efforts) to obtain or maintain
any Governmental Approval necessary for the operation of Sprint's Communications
Facility  at such Site;  provided,  however,  that a Sprint  Collocator  may not
assert  Withdrawal Cause if such Sprint Collocator (i) cannot maintain or obtain
or otherwise  forfeits a  Governmental  Approval as a result of the violation of
any Laws by such Sprint  Collocator or its Affiliates or any enforcement  action
or  proceeding  brought  by any  Governmental  Authority  against  Sprint or its
Affiliates because of any alleged wrongdoing by Sprint or its Affiliates or (ii)
does  not  have  such  Governmental  Approval  on the  Effective  Date  and such
Governmental Approval was required on the Effective Date.

     "Withdrawal  Date"  means the  effective  date of any  Sprint  Collocator's
election to terminate  its  leaseback  or other use and  occupancy of the Sprint
Collocation Space at any Site pursuant to a Withdrawal Notice.

     "Withdrawal Notice" has the meaning set forth in Section 10(a).

     "Withdrawal  Rights"  means the rights of a Sprint  Collocator  to elect to
terminate  its  leaseback or other use and  occupancy of the Sprint  Collocation
Space with respect to a Site as described in Section 10(a).

     "Zoning  Laws"  means any  zoning,  land use or  similar  Laws,  including,
without limitation,  Laws relating to the use or occupancy of any communications
towers or property, building codes, zoning ordinances and land use regulations.


                                       16




     "90 Day Lessee Notice" has the meaning set forth in Section 16(c).

     Any other capitalized terms used in this Agreement will have the respective
meanings given to them elsewhere in this Agreement.

     SECTION 2. Documents.

     (a) This Agreement will consist of the following documents, as amended from
time to time as provided herein:

          (i) this Agreement;

          (ii) the following  Exhibits,  which are  incorporated  herein by this
     reference:

              Exhibit A                     List of Sites
              Exhibit B                     Form of Site Designation Supplement
              Exhibit C                     Form of Memorandum of Agreement
              Exhibit D                     Form of Officer's Certificate of
                                                Sprint Corporation
              Exhibit E                     Form of Officer's Certificate of
                                                Global Signal Inc.
              Exhibits F and G              Intentionally Omitted
              Exhibit H                     Individual Site Rent and Option
                                                Purchase Price Amount

          (iii)  Schedules to the  Exhibits,  which are  incorporated  herein by
     reference and Schedule 1 hereto which is Incorporated by reference; and

          (iv) such additional documents as are incorporated by reference.

     (b) If any of the foregoing are  inconsistent,  this Agreement will prevail
over the Exhibits, the Schedules and additional incorporated documents.

     SECTION 3. Master Lease Sites and Pre-Lease Sites.

     (a) Subject to the terms and  conditions of this  Agreement,  Lessor hereby
lets,  leases and demises  unto  Lessee,  and Lessee  hereby  leases,  takes and
accepts from Lessor the Leased  Property of all of the Master Lease Sites.  Each
Master  Lease Site in addition to the  Initial  Master  Lease Sites will be made
subject to this  Agreement by means of a Conversion  Closing (after which Lessor
and Lessee will  execute and deliver at a Technical  Closing a Master Lease Site
Designation  Supplement between Lessor and Lessee and the amendment of Exhibit A
hereto to reflect such Site as a Master Lease Site instead of a Pre-Lease Site).
Lessor  and  Lessee   acknowledge  and  agree  that  this  single  Agreement  is
indivisible  (except  pursuant to Section  41(d)),  intended to cover all of the
Sites and is not a separate  lease and  sublease or  agreement  with  respect to
individual  Sites,  and in the event of a bankruptcy  of any Party,  all Parties
intend that this  Agreement be treated as a single  indivisible  Agreement.  All
disclaimers  of  obligations by Sprint under this Agreement are qualified in all
respects by such Parties'  representations,  warranties and covenants  under the
Agreement to Lease and Sublease. In addition,  the Parties


                                       17



acknowledge  and agree that this  Agreement  is  intended to be treated for U.S.
federal  income tax  purposes as (i) a lease  between  Lessee and  Lessor,  with
respect  to  the  Sites,  and  (ii)  a  lease  between  Lessee  and  the  Sprint
Collocators,  with  respect to the Sprint  Collocation  Space;  and the  Parties
further  agree to not take any  position on any tax return that is  inconsistent
with such treatment.

     (b) As to each Master Lease Site,  this Agreement is a grant of a leasehold
interest in each Owned Site;  and as to Leased Sites and Other  Interest  Sites,
this  Agreement is a grant of a  subleasehold  or other  interest in each Leased
Site or Other Interest Site, as applicable.

     (c) As to each Pre-Lease Site, Lessor hereby appoints, and Lessee agrees to
act and will act, as the  exclusive  operator of the Leased  Property at each of
the Pre-Lease Sites during the Term as to each Pre-Lease Site. In performing its
duties as operator of the Pre-Lease  Sites,  Lessee will manage,  administer and
operate  each  of the  Pre-Lease  Sites,  subject  to  the  provisions  of  this
Agreement, in a manner (i) which is comparable to and in accordance with prudent
management  and quality  standards  used in the  telecommunications  industry by
nation-wide  communications  tower operators operating  portfolios of comparable
size and quality as that being leased and operated under this Agreement and (ii)
consistent with the standards used to manage,  administer and operate the Master
Lease Sites. Except as specifically  provided herein,  neither Sprint nor Lessor
shall  exercise any rights or take any actions  with  respect to the  operation,
maintenance,  leasing or licensing with respect to any Pre-Lease Sites, all such
rights being exclusively reserved to Lessee hereunder.

     (d) Lessee hereby  accepts the Leased  Property at each Site in its "AS IS"
condition,  without any representation,  warranty or covenant of or from Lessor,
Sprint  or  their  respective  Affiliates  whatsoever  as to  its  condition  or
suitability for any particular use, except as may be expressly set forth in this
Agreement or in the Agreement to Lease and Sublease. Except as set forth in this
Agreement and the Agreement to Lease and  Sublease,  Lessee hereby  acknowledges
that neither  Lessor,  Sprint nor any agent or Affiliate of Lessor or Sprint has
made any representation or warranty,  express or implied, with respect to any of
the Leased Property,  or any portion of such Leased Property, or the suitability
or  fitness  for the  conduct of  Lessee's  business  or for any other  purpose,
including the Permitted  Use, and Lessee  further  acknowledges  that it has had
sufficient  opportunity  to inspect  and  approve  the  condition  of the Leased
Property at each of the Sites.

     (e) From and after the  Effective  Date,  Lessee  will  receive and will be
entitled to all of the revenue generated by the Sites and neither Lessor, Sprint
nor any of their respective  Affiliates will be entitled to any of such revenue,
and if any such revenue is paid to any such Person, it will remit same to Lessee
as soon as reasonably  possible  after any Sprint Group Member  becomes aware of
its receipt thereof  (including,  without  limitation,  by notice from Lessee of
such receipt),  but in no event more than ten (10) Business Days.  Lessor or the
applicable  Sprint  Contributor (as  applicable)  will direct,  in writing,  all
payors of amounts due with  respect to any Sites to pay such  amounts to Lessee.
From and after the  Effective  Date,  and except as  expressly  provided in this
Agreement, Lessee also will be responsible for the payment of, and will pay, all
expenses  related  to  or  associated  with  the  Sites,   whether  ordinary  or
extraordinary,  and whether foreseen or unforeseen. The rights granted to Lessee
under this Agreement include, with respect to each Tower, the right of Lessee to
use and employ,  to the


                                       18



extent  such  rights  may be legally  granted  to or used by  Lessee,  the Tower
Related Assets related to the Sites.

     (f)  Lessee  may from time to time make,  subject  to the  requirements  of
Section 13, such  Alterations as Lessee may deem desirable in the proper conduct
of its business,  so long as (i) such  Alteration  will not disrupt or otherwise
adversely affect the Sprint Collocator's use of the Site in any material respect
and is made in accordance with the  requirements set forth in Section 13 of this
Agreement,  (ii) such Alteration will not result in any material  respect in (y)
the value of the Site or  portion of such Site being less than the value of such
Site immediately prior to such Alteration,  or (z) the economic life of the Site
or portion of the Site being less than the economic  life of the Site or portion
of the Site immediately prior to such Alteration, and (iii) such Alteration will
not cause the Site or portion of such Site to constitute  "limited use property"
within the meaning of Rev. Proc. 2001-28, 2001-1 C.B. 1156.

     SECTION 4. Ground Leases.

     (a) Lessee  hereby  acknowledges  that,  as to the Leased  Property of each
Leased Site or Other Interest Site, as applicable, this Agreement is subject and
subordinate to all of the terms and  conditions of, the applicable  Ground Lease
of such Leased Site or Other Interest Site, as applicable. As to any Leased Site
or Other Interest Site, as applicable, neither Lessor nor any other Sprint Group
Member  will be deemed to have  assumed  any duty or  obligation  of the  Ground
Lessor under the  applicable  Ground Lease and will not be liable or responsible
in any manner  whatsoever  for any failure of such Ground  Lessor to perform any
such duty or obligation.  Lessee agrees that it will promptly pay or cause to be
paid the Ground  Rent under  each of the Ground  Leases for the Leased  Sites or
Other Interest Sites, as applicable  during the Term of this Agreement when such
payments  become due and payable  and, if Lessee  fails to pay Ground Rent under
any  Ground  Lease  on a  timely  basis,  Lessee  will  be  responsible  for any
applicable  late  charges,  fees  or  interest  payable  to the  Ground  Lessor;
provided,  however,  that should any Ground  Lessor refuse the payment of Ground
Rent for an applicable  Site from any Person other than Lessor or its Affiliate,
as applicable, then Lessor or its Affiliate, as applicable, after written notice
from Lessee of the need for payment  from such  Person,  will  promptly pay such
amount, and Lessee will reimburse Lessor therefor within five (5) days after the
date of Lessor's payment.  Except as provided in Section 4(c), Lessee will abide
by, comply in all respects  with,  and fully and  completely  perform all terms,
covenants,  conditions, and provisions of each Ground Lease (including,  without
limitation,   terms,   covenants,   conditions,   and  provisions   relating  to
maintenance,  insurance and  alterations)  as if Lessee were the "ground lessee"
under  the  applicable  Ground  Lease  and,  to  the  extent  evidence  of  such
performance  must be  provided  to the Ground  Lessor of the  applicable  Ground
Lease,  Lessee will provide such  evidence to Ground  Lessor.  Unless  otherwise
directed  by Lessee or upon the  suspension  of the  limited  power of  attorney
granted to Lessee below,  neither Lessor,  Sprint,  nor any of their  respective
Affiliates shall take any actions to interfere with Lessee acting as the "ground
lessee" under any Ground Leases as long as Lessee is performing its  obligations
with  respect to Ground  Leases  hereunder.  To the extent that any Ground Lease
imposes or requires the  performance  of the "ground  lessee"  thereunder of any
duty or  obligation  that is more  stringent  than or in conflict with any term,
covenant,  condition,  or  provision of this  Agreement,  the  applicable  term,
covenant,  condition,  or  provision  of the Ground  Lease will control and will
constitute  the duties and  obligations of Lessee under this Agreement as to the
subject matter of such term, covenant,  condition, or



                                       19



provision.  Lessee will not (and with  respect to its  activities  on the Sprint
Collocation  Space,  each  Sprint  Collocator  will not) engage in or permit any
conduct  that  would:  (i)  constitute  a breach of or default  under any Ground
Lease;  or (ii) result in the Ground  Lessor  being  entitled to  terminate  the
applicable  Ground Lease or to terminate  Lessor's  right as ground lessee under
such  Ground  Lease,  or to exercise  any other  rights or remedies to which the
Ground  Lessor  may be  entitled  for a default or breach  under the  applicable
Ground  Lease.  In no event shall Lessee have any  liability to any Sprint Group
Member for any breach of a Ground  Lease  caused by an act or omission of Lessor
or any Sprint Group Member,  before,  on, or after the Effective  Date,  and the
Sprint  Collocators  hereby indemnify and hold the Lessee  Indemnitees  harmless
from and against and in respect of any and all Claims (other than Claims, to the
extent arising from actions taken by Lessee or its Affiliates)  paid,  suffered,
incurred or sustained by any Lessee Indemnitee and in any manner arising out of,
by reason of, or in connection therewith.  During the Term as to any Leased Site
or Other  Interest  Site, as  applicable,  and subject to Sections 4(c) and 4(f)
below,  Lessee  agrees to exercise  prior to the  expiration  of the  applicable
Ground Lease and in  accordance  with the  provisions of the  applicable  Ground
Lease,  any and all renewal  options  existing as of the Effective  Date and any
further  renewal or extension  options that may be granted by any Ground  Lessor
after the  Effective  Date for any such Leased Site or Other  Interest  Site, as
applicable,  under the  Ground  Leases of such  Leased  Sites or Other  Interest
Sites, as applicable;  provided,  however,  that Lessee shall not be required to
exercise any Ground Lease  renewal  option if the Sprint  Collocator at the Site
covered  by such  Ground  Lease is in  default  of its  obligations  under  this
Agreement  as to the Site beyond  applicable  notice and cure  periods  provided
herein.

     (b) Lessee will not be entitled to act as agent for, or otherwise on behalf
of,  Lessor or its  Affiliates  or to bind Lessor or its  Affiliates  in any way
whatsoever in connection  with any Ground Lease or otherwise  except as provided
in this  Section 4. Lessor  hereby  delegates  to Lessee the sole and  exclusive
right to perform the obligations of and assert the rights of the "ground lessee"
under all Ground  Leases and of the Sprint  Contributors  under all  Collocation
Agreements  with  respect  to  Pre-Lease  Sites,  and  to  exercise  all  rights
thereunder subject only to the other provisions of this Section 4. In accordance
with the  provisions  of this  Agreement,  Lessee will have the right to review,
negotiate  and execute on behalf of Lessor  amendments  and other  documentation
relating to Ground  Leases and to  otherwise  act on behalf of Lessor in dealing
with the Ground  Lessors  under the Ground  Leases,  and Lessor hereby grants to
Lessee a limited  power of  attorney  and,  subject  to any  limitation  on such
appointment  herein,  appoints  Lessee  as its  agent and  attorney  to  review,
negotiate  and execute on behalf of Lessor  amendments  and other  documentation
relating to Ground  Leases and to  otherwise  act on behalf of Lessor in dealing
with the Ground Lessors under the Ground Leases. The foregoing power of attorney
and appointment are subject to the following  requirements and limitations:  (i)
all amendments and other documentation  executed by Lessee, and actions taken by
Lessee on behalf of Lessor must comply in all respects with the requirements and
provisions of this Agreement,  (ii) upon request by Lessor,  Lessee will provide
Lessor with such  summaries,  documentation  and other  information  relating to
Lessee's  negotiations and other  activities  pertaining to the Ground Lease and
the Ground  Lessors as Lessor may  reasonably  request,  and (iii) the foregoing
power of attorney and  appointment  granted herein to Lessee may be suspended by
written notice from Lessor to Lessee at any time upon the occurrence of an event
of default by Lessee  under this  Agreement  or if Lessee  violates  or fails to
comply with the foregoing  requirements and limitations and until such violation
or failure is cured.  Lessee may use such power of attorney to


                                       20



(i)  negotiate  and execute any Ground  Lease  renewal that is for a term of not
more than five (5) years,  which may contain  successive  five (5) year  renewal
options and otherwise shall be on commercially  reasonable  terms,  (ii) execute
other modifications, waivers and amendments to Ground Leases that are reasonably
required in the normal  business  and  operations  of the Sites or (iii)  amend,
modify,  enforce or waive any terms of any Collocation  Agreements applicable to
Pre-Lease Sites.  Lessee will, and does hereby agree to,  indemnify,  defend and
hold the Sprint Indemnitees harmless from, against and in respect of any and all
Claims paid, suffered, incurred or sustained by any Sprint Indemnitee and in any
manner  arising  out of,  by  reason  of,  or in  connection  with all deeds and
activities  performed by Lessee  pursuant to and under the authority  granted by
the  power  of  attorney  granted  in  this  Section  4(b)  (including,  without
limitation,  a violation  failure to comply with the foregoing  requirements and
limitations),  provided,  however,  that such indemnity shall not be for amounts
payable  under a Ground Lease after the Site  Expiration  Outside  Date,  unless
Lessee exercises its rights under Section 36 with respect to a Site or the terms
and  provisions  of such Ground  Lease that extends  beyond the Site  Expiration
Outside Date are not commercially  reasonable.  Except as expressly  provided in
this Agreement, no amendment,  renewal,  extension or other change to any Ground
Lease  desired by Lessee  during  the Term  pursuant  to this  Section 4 will be
effected  without  the  prior  consent  of  Lessor,   such  consent  not  to  be
unreasonably   withheld,   conditioned   or   delayed.   Lessor  or  the  Sprint
Contributors,  as  applicable,  shall  respond to any written  request that they
execute or consent to the execution of a Ground Lease amendment  within ten (10)
Business Days of written notice thereof,  with a failure to respond being deemed
a consent to the execution of such Ground Lease amendment by Lessee.

     (c) With respect to any negotiations with a Ground Lessor of the terms of a
renewal or  extension  of a Ground  Lease  (other  than a renewal  or  extension
pursuant to an option  contained  in such Ground Lease which Lessor is obligated
to exercise  pursuant to Section  4(a)),  Lessee will, at Lessee's sole cost and
expense,  use  commercially  reasonable  efforts  to  negotiate  and  obtain  an
extension or renewal of all Ground Leases of the Leased Sites and Other Interest
Sites on behalf of and for the benefit of Lessor,  and Lessor,  if  requested by
Lessee, will make commercially  reasonable efforts to assist Lessee in obtaining
such  extension or renewal;  provided,  however,  that such renewal or extension
does not impose any liability or obligation on Lessor,  any Sprint Collocator or
any of their respective Affiliates during the Term as to the applicable Site for
which Lessee is not responsible (or subsequently agrees to be responsible) under
the terms of this Agreement.  If, at the conclusion of any such  negotiations by
Lessee (a "Lessee Negotiated Renewal"),  Lessee has obtained a proposal from the
applicable  Ground Lessor for the renewal or extension of such Ground Lease that
provides for Renewal  Ground Rent under such renewal or extension  that does not
exceed one hundred sixty percent  (160%) of the Expiring  Ground Rent,  does not
increase any revenue sharing thereunder and does not impose any other conditions
or  responsibilities  on the Lessee  thereunder  materially more onerous than in
such Ground Lease prior to the renewal thereof for such Site, Lessee agrees that
Lessee will be required to accept such proposal and use commercially  reasonable
efforts to cause such renewal or  extension  to be entered into  (subject to the
Sprint  Collocator not being in default hereunder at such Site beyond applicable
notice and cure periods provided herein); provided,  however, that in such event
the  Sprint  Collocation  Charge  payable by the  Sprint  Collocator  under this
Agreement for the Sprint  Collocation  Space at the Site that is subject to such
renewal or extension  will increase  during the entire period of such renewal or
extension (and any subsequent  renewals or extensions thereof exercised prior to
the applicable Withdrawal Date) by the amount



                                       21



of the Shared Ground Rent Increase  Payment.  If the proposed Lessee  Negotiated
Renewal  provides for Renewal Ground Rent that exceeds one hundred sixty percent
(160%) of the Expiring  Ground Rent or otherwise  increases any revenue  sharing
thereunder or otherwise  imposes any other  conditions  materially  more onerous
than those  contained in such Ground Lease prior to the renewal thereof for such
Site, and Lessee does not desire to accept Renewal Ground Rent,  Lessee shall so
notify Lessor in writing of the Renewal  Ground Rent provided for in such Lessee
Negotiated  Renewal,  and Lessor shall have right (exercisable by written notice
from Lessor to Lessee  within thirty (30) days after receipt of such notice from
Lessee to Lessor) to either (i) require  Lessee to accept such  proposal and use
commercially  reasonable  efforts to cause such Lessee Negotiated  Renewal to be
entered into (but only at a Renewal  Ground Rent not exceeding the amount of the
Renewal Ground Rent contained in the proposed Lessee Negotiated Renewal of which
Lessor was so notified) or (ii) attempt to negotiate the Renewal Ground Rent for
the period of such  renewal or extension  directly  with the  applicable  Ground
Lessor;  provided,  however,  that in either of such  events,  if any renewal or
extension is thereafter  entered into, the Sprint  Collocation Charge payable by
the Sprint  Collocator under this Agreement for the Sprint  Collocation Space at
the Site that is subject to such renewal or extension  will increase  during the
entire  period of such  renewal or  extension  (and any  subsequent  renewals or
extensions  thereof  exercised prior to the applicable  Withdrawal  Date) by the
amount of the Shared Ground Rent Increase Payment.  Lessee at any time may enter
into any renewal or extension of a Ground Lease on any  commercially  reasonable
terms as it may elect.  To the extent  that  Lessee or any  Affiliate  of Lessee
succeeds to the interest of any Ground Lessor in and to the Ground Lease located
at any Site,  upon the  expiration  of the term of such  Ground  Lease  (and any
renewal  options  contained  therein),  the  term of  such  Ground  Lease  shall
thereafter be  automatically  renewed for additional  five (5) year terms on the
same terms and conditions as the immediately preceding renewal or extension term
of the Ground Lease, provided, however, that the Ground Rent thereunder shall be
increased  by an amount  equal to the product of (x) the Ground Rent in the term
then expiring and (y) a fraction (but not less than one), the numerator of which
is the aggregate  base Ground Rent payable  during the final term of said Ground
Lease (prior to renewal in accordance with this sentence) and the denominator of
which is the  aggregate  base Ground Rent  payable  during the term  immediately
preceding  the final term of said Ground Lease  (prior to renewal in  accordance
with this sentence), assuming such terms are of equivalent length (or, if not of
equivalent  length,  then the  period  over which the base  Ground  Rent for the
expiring Ground Lease shall be calculated  shall match the length of the renewal
or extension, as applicable), or if such Ground Lease had only one term thereto,
then the base  Ground  Rent shall  increase  during  each year of the renewal or
extension at the periodic  escalations,  if any, provided for in the immediately
previous five (5) years of the term of such Ground Lease.

     (d)  Commencing  from and after January 1, 2007, if on the date that is six
(6) months prior to the  expiration of any Ground  Lease,  such Ground Lease has
not been  renewed or  extended,  Lessee will so notify  Lessor in  writing,  and
Lessor, at its option, may attempt to negotiate such renewal or extension and if
Lessee has not  previously  used  commercially  reasonable  efforts  pursuant to
Section 4(c) to obtain such renewal or extension,  Lessee will reimburse  Lessor
for  its  reasonable  out of  pocket  expenses  relating  to  such  negotiation;
provided,  however,  that Lessor  will not in  connection  with such  renewal or
extension,  without  the  approval of Lessee,  agree to any  revenue  sharing in
excess  of  existing  revenue  sharing  arrangements.  If Lessor  completes  the
foregoing negotiations for, and executes and delivers, such renewal or



                                       22



extension  (a  "Lessor  Negotiated  Renewal"),  the Term as to such  Site  shall
continue  in  full  force  and  effect;  provided,   however,  that  the  Sprint
Collocation Charge payable by the Sprint Collocator under this Agreement for the
Sprint  Collocation  Space at the Site that is subject to the Lessor  Negotiated
Renewal will increase during the entire period of such Lessor Negotiated Renewal
(and any subsequent  renewals or extensions thereof) by the amount of the Shared
Ground Rent Increase Payment.  Notwithstanding anything in this Agreement to the
contrary,  however, in the event of an increase in the Sprint Collocation Charge
as a result of the payment by the Sprint  Collocator  of any Shared  Ground Rent
Increase  Payment  under this  Agreement,  no portion of the Sprint  Collocation
Charge  attributable to any Shared Ground Rent Increase Payment shall be subject
to the annual increase in the Sprint  Collocation Charge provided for in Section
11(b) (except that the Sprint  Collocator  will be obligated to pay as a part of
the Sprint  Collocation  Charge any periodic increases in the Shared Ground Rent
Increase Payment based on increased rent, fees and other charges provided for in
the  applicable  Ground  Lease  during the period of the  applicable  renewal or
extension).  The foregoing  sentence shall not limit the annual  increase in the
portions  of the Sprint  Collocation  Charge  other than the Shared  Ground Rent
Increase  Payment as provided in Section 11(b).  If Lessor or Lessee is not able
to renew or extend any Ground  Lease in  accordance  with  Section 4(c) and this
Section  4(d),  then the Parties  will permit such Ground Lease to expire on the
applicable  expiration  date, in which event this Agreement will have no further
force and effect as to the Leased Site or Other Interest Site, as applicable, to
which such Ground Lease applies except for such obligations accruing prior to or
as of such expiration date that are then unperformed.

     (e)  Notwithstanding  anything  in this  Agreement  to the  contrary,  with
respect  to any Lessee  Negotiated  Renewal or Lessor  Negotiated  Renewal  with
respect to a Site  pursuant to which the Sprint  Collocator  is obligated to pay
any Shared Ground Rent Increase  Payment in  accordance  with the  provisions of
Section  4(c) or 4(d),  such  Sprint  Collocator  agrees that (i) if such Lessee
Negotiated Renewal or Lessor Negotiated Renewal provides for Renewal Ground Rent
that exceeds one hundred  sixty percent  (160%) of the Expiring  Ground Rent and
the Sprint  Collocator  exercises its Withdrawal Right with respect to such Site
so that the  Withdrawal  Date for such Site would occur  during the term of such
Lessee Negotiated Renewal or Lessor Negotiated Renewal,  the Withdrawal Date for
such Site shall be automatically  extended to, and shall be, the expiration date
of the then current term of such Lessee Negotiated  Renewal or Lessor Negotiated
Renewal,  (or if such Ground Lease has been  extended  prior to such exercise of
the Withdrawal Right, the Withdrawal Date shall be automatically  extended until
the expiration of the next applicable Ground Lease term) and (ii) if such Lessee
Negotiated Renewal or Lessor Negotiated Renewal provides for Renewal Ground Rent
exceeding  one  hundred  thirty  percent  (130%),  but equal to or less than one
hundred sixty percent (160%), of the Expiring Ground Rent for such Site, and the
Sprint  Collocator  exercises its Withdrawal  Right with respect to such Site so
that the  Withdrawal  Date for such Site  would  occur  during  the term of such
Lessee  Negotiated  Renewal or Lessor  Negotiated  Renewal the Sprint Collocator
shall  continue  to pay to Lessee the portion of the Sprint  Collocation  Charge
attributable  to the Shared Ground Rent  Increase  Payment for such Site (but no
other  portion  of  the  Sprint  Collocation  Charge)  in  accordance  with  the
provisions of this Agreement until the earlier of (y) the expiration of the then
current term of such Lessee Negotiated  Renewal or Lessor Negotiated Renewal (or
if such Ground Lease has been extended  prior to such exercise of the Withdrawal
Right, the Withdrawal Date shall be automatically  extended until the expiration
of the next applicable  Ground Lease term) or (z) the fifth (5th) anniversary of
the commencement of the then current term of such


                                       23




Lessee Negotiated  Renewal or Lessor Negotiated Renewal (or if such Ground Lease
has been extended prior to such exercise of the Withdrawal Right, the Withdrawal
Date shall be automatically extended until the expiration of the next applicable
Ground Lease term).  Notwithstanding  the  foregoing  provisions of this Section
4(e), the obligations of the applicable  Sprint Collocator in clause (ii) of the
immediately preceding sentence of this Section 4(e) shall not apply with respect
to any Lessor Negotiated Renewal (without in any manner otherwise  affecting the
obligations  of  the  applicable  Sprint  Collocator  under  clause  (i)  of the
immediately  preceding  sentence) if Lessee did not use commercially  reasonable
efforts  pursuant to Section 4(c) to obtain a renewal or extension of the Ground
Lease that was renewed or extended pursuant to such Lessor  Negotiated  Renewal.
Lessee's  commercially  reasonable  efforts  shall  mean  providing  the  Sprint
Collocators  evidence,  which may be a  certification  as to item  (x),  that it
either (x) engaged in active  negotiations  with the applicable Ground Lessor or
(y) sent regular  correspondence to the applicable Ground Lessor with respect to
renewing such Ground Lease, in either case, at least six (6) months prior to the
expiration  of such  Ground  Lease.  Any dispute  under this  Section 4 shall be
subject to  arbitration  in accordance  with the procedures set forth in Section
31(h).  If a Withdrawal  Right is  exercised  with respect to a Site that is the
subject of Lessor  Negotiated  Renewal or a Lessee  Negotiated  Renewal,  Lessee
shall have no  obligation  to exercise any further  extension  options under the
Ground Lease applicable to such Site.

     (f) Upon  receipt by Lessor or any other  Sprint Group Member of any notice
of default or notice of an act or omission  which could with the passing of time
and/or the giving of notice  constitute an event of default under a Ground Lease
or non-compliance  with a term of a Ground Lease (the "Default Notice"),  Lessor
will,  within five (5) Business Days after receipt of the Default Notice or such
shorter time as is reasonably  necessary to avoid a  termination  of such Ground
Lease,  provide  Lessee with a copy of the Default  Notice.  If such  default or
non-compliance  with a term of a Ground  Lease is  caused by Lessee or any Tower
Subtenant,  Lessee will, and will cause the applicable  Tower Subtenant to, cure
or  otherwise  remedy  such  default  or  noncompliance.   If  such  default  or
non-compliance  is caused by any Sprint  Collocator,  or any other  Sprint Group
Member,  Lessor or the applicable  Sprint  Collocator will cause such default or
non-compliance  to be cured or otherwise  remedied at its sole cost and expense.
Lessor and each Sprint  Contributor  hereby agree that if because of the failure
of  Lessor  or  any  Sprint  Contributor  to  perform  of  any  of  its  duties,
obligations, liabilities or responsibilities under any Ground Lease that results
in a  default  under  and  termination  of a Ground  Lease  (unless  such  duty,
obligation,  liability or  responsibility is assumed by Lessee  hereunder),  the
applicable  Sprint  Collocators  shall  pay to  Lessee  an  amount  equal to the
Unamortized  Rent as of the date of  termination  of the  Ground  Lease  for the
affected  Site;  provided,  however,  that such payment shall be and  constitute
liquidated damages (and not as a penalty) to Lessee hereunder on account of such
failure,  it being agreed  between the Parties that the actual damages to Lessee
in such event are  impractical  to ascertain  and the amount of the  Unamortized
Rent is a reasonable  estimate  thereof,  and Lessee hereby expressly waives and
relinquishes any and all other remedies at law or in equity.

     SECTION 5. Collocation Agreements.

     (a)  Without  limiting  the  generality  of  Section  4,  Lessee  expressly
acknowledges that, as to each Site, this Agreement is subject to all Collocation
Agreements currently in effect with respect to such Site as are set forth in the
Agreement  to Lease and  Sublease.  In respect of each  Master  Lease  Site,  by
execution of this  Agreement as to the Initial Master Lease Sites and



                                       24



thereafter as of the Conversion  Closing Date for each  additional  Master Lease
Site, Lessor does transfer,  assign and convey over unto Lessee, for the Term as
to such Master Lease Site, all of its rights, title and interest in, to or under
any Collocation  Agreements affecting such Master Lease Site. In respect of each
Pre-Lease Site,  Lessor and each Sprint  Contributor does hereby delegate all of
its  respective  rights,  duties,  obligations  and  responsibilities  under the
Collocation  Agreements  to  Lessee  for the Term as to such  Site  for  periods
occurring from and after the Effective Date. Lessee does hereby assume and agree
to  pay  and   perform  all  of  the  duties,   obligations,   liabilities   and
responsibilities  of Lessor and all Sprint  Contributors  under the  Collocation
Agreements  affecting  each Site arising from and after the Effective  Date, and
Lessee will  receive all rents  payable  under such  Collocation  Agreement  for
periods  occurring  from and after  the  Effective  Date.  Lessor,  each  Sprint
Contributor  and  Lessee  acknowledge  and  agree  that in  connection  with the
transactions  described  in  this  Section  5(a),  certain  of  the  Collocation
Agreements  may be required to be  bifurcated as provided in Section 6.11 of the
Agreement to Lease and Sublease and shall be subject to further  bifurcation  as
provided in Section 41(f).

     (b) Lessee will, and does hereby agree to,  indemnify,  defend and hold the
Sprint Indemnitees  harmless from, against and in respect of any and all Claims,
paid, suffered, incurred or sustained by any Sprint Indemnitee and in any manner
arising out of, by reason of, or in  connection  with any failure of the duties,
obligations,   liabilities  and   responsibilities   of  Lessor  or  the  Sprint
Contributors  under any of the Collocation  Agreements  (solely in their role as
"landlord"  thereunder  and not with  respect  to the use and  operation  of the
Sprint Collocation Space or otherwise as the subtenant of a Site) affecting each
Site and arising from and after the Effective  Date, to be fully and  completely
performed pursuant to the Collocation  Agreements;  provided,  however, that the
foregoing  indemnification  shall  not be  deemed  to  abrogate  or  impair  the
operation  or  effect  of  any  representations  or  warranties  of  the  Sprint
Contributor made with respect to the Collocation  Agreements in the Agreement to
Lease and Sublease or be  applicable  to a matter that  constitutes  an Excluded
Liability under, and as defined in, the Agreement to Lease and Sublease.

     (c) The Sprint Collocators  hereby agree to indemnify,  defend and hold the
Lessee Indemnitees  harmless from, against and in respect of any and all Claims,
paid, suffered, incurred or sustained by any Lessee Indemnitee and in any manner
arising out of, by reason of, or in  connection  with any failure of the duties,
obligations,   liabilities  and   responsibilities   of  Lessor  or  any  Sprint
Contributor  under any of the  Collocation  Agreements  affecting  each Site and
arising  (i)  prior to the date  hereof,  to be fully and  completely  performed
pursuant to the Collocation  Agreements,  (ii) during the Term of this Agreement
and is related to an action or failure to act by the Sprint  Contributors or any
of their respective Affiliates required under this Agreement, or (iii) following
the  expiration  of the  Term  as to any  Site to  which  any  such  Collocation
Agreement applies from and after the date that any such Collocation Agreement is
reassigned or deemed reassigned to Lessor or its designee as provided in Section
5(d).

     (d) Unless  Lessee  exercises  the  purchase  option with respect to a Site
under Section 36 of this  Agreement,  the  assignment by Lessor to Lessee of the
Collocation Agreements in respect of each Site will automatically  terminate and
expire and such  Collocation  Agreements  will  automatically  be (or be deemed)
reassigned  or  assigned,  as the case may be, to Lessor  or its  designee,  and
Lessor or its designee will accept such reassignment or assignment,  as the case



                                       25



may be,  upon the  expiration  of the Term of, or earlier  termination  of, this
Agreement in respect of such Site.

     SECTION 6. Sprint Collocation Space.

     (a) Lessor,  each Sprint Collocator and Lessee expressly  acknowledge that,
at all  times  during  the  Term  as to  each  Master  Lease  Site,  the  Sprint
Collocation  Space of each  Master  Lease  Site  will be  deemed  to be  leased,
subleased or otherwise made available by Lessor to Lessee, and subleased back or
otherwise made available to the applicable Sprint  Collocator,  pursuant to this
Agreement,  and the  Sprint  Collocation  Space at each  Pre-Lease  Site will be
deemed  reserved  for or otherwise be made  available to the  applicable  Sprint
Collocator pursuant to this Agreement, in each case for the exclusive possession
and use by such Sprint Collocator and its Affiliates and permitted  transferees,
whether or not such Sprint Collocation Space is now or hereafter occupied.  As a
part of the Sprint  Collocation  Space of each Site,  Lessee  also grants to the
Sprint  Collocator  as to each  Master  Lease  Site,  and the Sprint  Collocator
reserves and shall at times retain (for the benefit of the Sprint  Collocator or
any of its  Affiliates  and  except to the extent  limited  by any  restrictions
contained in any applicable Ground Lease, the Permitted Encumbrances or by Law):
(i) a  non-exclusive  right and  easement  (over the  surface of the Site),  but
subject to the terms of this Agreement,  the Ground Leases,  the rights of Tower
Subtenants,  any  other  agreements  affecting  the Site  existing  prior to the
Effective  Date  (not  entered  into  by  Lessee  or its  Affiliates)  and  such
commercially  reasonable  rules and  regulations as Lessee may from time to time
propagate (such rules and regulations to be applied  uniformly by Lessee between
the Sprint Collocators and Tower Subtenants) and applicable Laws, for ingress to
and  egress  from the  entire  Site,  and  access  to the  entire  Tower and all
Improvements to such Site and Tower, at such times (on a 24-hour,  seven (7) day
per week basis unless  otherwise  limited by the Ground Lease),  to such extent,
and in such means and manners (on foot or by motor vehicle, including trucks and
other heavy equipment),  as the Sprint Collocator deems reasonably  necessary in
connection  with its full use and  enjoyment  of the Sprint  Collocation  Space,
including,  without  limitation,  a right to construct,  install,  use, operate,
maintain,  repair and replace its  Communications  Equipment  on the  applicable
Sprint  Collocation  Space; and (ii) the right,  exercisable only during periods
during which the applicable Sprint  Collocator is actively  performing work at a
Site (and subject to the terms of the  applicable  Ground  Lease and  applicable
Laws), to use any unoccupied  portion of the ground space at the applicable Site
for  purposes of  temporary  location and storage (but only during the period of
the  performance  of  such  work  at  such  Site)  of any of its  Communications
Equipment and for performing any repairs or replacements (provided that such use
and occupancy of any unoccupied portion of a Site will not materially  adversely
affect the use and occupancy by, or interfere  with the  operations  of, a Tower
Subtenant  or  Lessee  of the  Site,  and,  provided  further  that  the  Sprint
Collocator will be required to remove any of its stored Communications Equipment
on any  unoccupied  portion of the Site upon  fifteen  (15) days  prior  written
notice from Lessee if such  unoccupied  portion of the Site is under sublease or
other  occupancy  arrangement  with a Tower  Subtenant  that is prepared to take
occupancy of such portion of the Site or is otherwise required for use by Lessee
for work or storage at such Site); and (iii) a non-exclusive  right and easement
for the use,  operation,  maintenance,  repair and  replacement  of all  utility
lines,  Equipment  and  appurtenances  now  existing and located on the Site and
providing  electrical and any other utility  service to Sprint's  Communications
Facility on the Site, which right and easement  includes the right of the Sprint



                                       26




Collocator and its agents,  employees and  contractors to enter upon the Site to
repair, maintain and replace such utility facilities.

     (b) Notwithstanding  the foregoing  provisions of this Section 6, except in
the event of an Emergency,  a Sprint  Collocator  shall give Lessee at least ten
(10) days prior  written  notice of its intention to undertake any activity that
involves  having  any  Sprint  Collocator  or its  contractors,  subcontractors,
engineers,  agents,  advisors,  consultants,  representatives,  or other Persons
authorized by such Sprint  Collocator to (i) climb the Tower at any Site (and in
the event of an  Emergency  the Sprint  Collocator  will  provide such notice of
having  climbed the Tower  promptly  after  performed  such act),  (ii)  perform
construction  or  maintenance  activities  that might  reasonably be expected to
temporarily or permanently  affect access or use of a Site or (iii) involves the
use of heavy  equipment.  No  representation  is made by Lessee with  respect to
whether  any Sites are  accessible  by trucks or other  heavy  equipment  or are
currently capable of being utilized by same, and Lessee shall have no obligation
to any Sprint  Collocator to build access roads that are accessible by trucks or
other heavy  equipment or to prepare the Site to be utilized by same;  provided,
however,  that  Lessor  will be required to maintain in such order and repair as
would be required under industry  standards such access roads existing as of the
Effective  Date and agrees not to take any action  (except as required by Law, a
Governmental  Authority,  the  applicable  Ground  Lease  existing  prior to the
Effective Date, any Collocation  Agreement  existing prior to the Effective Date
or other agreement  affecting the Site existing prior to the Effective Date (and
not entered into by Lessee or its Affiliates)) that would materially diminish or
impair any means of access to any Site  existing as of the Effective  Date.  The
Sprint  Collocation  Space at each Site, on the Land  constituting  a portion of
such Site, shall include an additional  unobstructed  buffer area three (3) feet
in width along and around the perimeter of all portions of Sprint's Improvements
located  on such  Land  (collectively,  the  "Sprint  Buffer  Zone");  provided,
however, that the Sprint Collocators acknowledge and agree that (i) with respect
Sprint's Improvements located on the Land at any Site on the Effective Date, the
Sprint  Buffer  Zone is hereby  established  only to the extent it exists on any
Site as of the  Effective  Date,  (ii) with  respect to the portions of Sprint's
Improvements  consisting  of  cable  runs,  the  Sprint  Buffer  Zone  need  not
necessarily include an area three (3) feet in width around the perimeter thereof
so long as the  applicable  Sprint  Collocator  has  reasonable  access  to such
portions of Sprint's  Improvements  for the purposes of maintenance,  repair and
replacement  thereof. If the Sprint Buffer Zone (coupled with applicable zoning,
setback or other Laws or terms in the applicable Ground Lease or agreements with
other Tower Subtenants) effectively limits Lessee's ability to lease, license or
otherwise allow space at a Site to be used by a prospective Tower Subtenant in a
commercially  reasonable  manner,  then the Lessee may, by written notice to the
applicable Sprint Collocator,  request such Sprint Collocator to reduce the size
of the Sprint Buffer Zone to  accommodate  the reasonable  requirements  of such
prospective  Tower  Subtenant.   Each  such  request  shall  be  accompanied  by
reasonable  information that will enable the Sprint  Collocator to determine the
nature and location of the  requested  reduction  and the extent of the proposed
encroachment  into the Sprint Buffer Zone, and each Sprint  Collocator agrees to
not unreasonably  withhold,  condition or delay its consent to any such request.
If any Sprint Collocator consents to such a reduction in the Sprint Buffer Zone,
then such  reduction  shall be effective only during the period during which the
permitted  encroachment into the Sprint Buffer Zone exists,  and at such time as
the  Improvements  or Equipment at the  applicable  Site that  encroach upon the
Sprint  Buffer  Zone  and  are  the  subject  of  the  permitted  reduction  are
permanently removed, the Sprint Buffer Zone shall be reinstated to the extent it
existed prior to


                                       27




the time of the permitted reduction.  In addition, if at any time the applicable
Sprint Collocator has ceased use of any portion of the Sprint  Collocation Space
on the Tower that contained  Communications Equipment located outside the Sprint
Tower Envelope on the Effective  Date, then Lessee may, by written notice to the
applicable Sprint Collocator, request such Sprint Collocator to permit Lessee to
use such  unused  portion of the Sprint  Collocation  Space to  accommodate  the
reasonable  requirements of such prospective  Tower  Subtenant,  and each Sprint
Collocator agrees to not unreasonably  withhold,  condition or delay its consent
to any such request.

     (c) Notwithstanding anything in this Agreement to the contrary, (i) Lessor,
Lessee and Sprint acknowledge and agree that certain Sites identified on Exhibit
A, are either being leased,  subleased or otherwise  made available by Lessor to
Lessee  or being  operated  by Lessee  pursuant  to this  Agreement  but are not
subject to the sublease to or reservation by any Sprint Collocator of any Sprint
Collocation  Space (such Sites,  along with any Site where the applicable Sprint
Collocator  exercises its Withdrawal  Rights from and after the Withdrawal  Date
for such Site, the  "Non-Collocation  Sites"), and the duties and obligations of
any Sprint Collocator in this Agreement regarding Sprint Collocation Space shall
not be  applicable  to the  Non-Collocation  Sites and (ii) Lessee shall have no
duties to Lessor or Sprint with respect to such  Non-Collocation  Sites pursuant
to  Sections  6 and 25.  On the  Effective  Date,  the  number  of Sites  either
subleased back or otherwise made available to the applicable  Sprint  Collocator
shall not be less than the number of Sites  determined  in  accordance  with the
methodology set forth in Section 2.6(h) of the Agreement to Lease and Sublease.

     (d) Each Sprint  Collocator  will,  at all times  during the Term as to any
Site,  at such Sprint  Collocator's  sole cost and  expense,  keep and  maintain
Sprint's  Communications  Equipment and Sprint's  Improvements in a structurally
safe and sound condition and in working order.

     (e) Without  limiting  any of  Lessee's  rights or  obligations  under this
Agreement,  Lessee acknowledges and agrees that Lessee will not engage, nor will
it permit any Tower  Subtenant to engage,  in any conduct or activity that might
reasonably be expected to interfere  (excluding  electrical  interference  which
will be governed by Section 15) with the Sprint Collocator's  peaceful and quiet
enjoyment of the Sprint Collocation Space or the use and operation of the Sprint
Collocator of Sprint's  Communications  Equipment at such Site.  Notwithstanding
anything to the contrary herein, in no event shall Lessee be required to enforce
any rights  against or resolve any disputes  with a Tower  Subtenant  who at the
time of such enforcement action or dispute is an Affiliate of Sprint.

     (f) Without  limiting the rights or  obligations  of any Sprint  Collocator
under this Agreement,  each Sprint  Collocator  acknowledges  and agrees that it
will not engage, nor permit its Affiliates to engage, in any conduct or activity
that  might   reasonably   be  expected  to  interfere   (excluding   electrical
interference  which will be governed  by Section 15) with  Lessee's or any Tower
Subtenant's  peaceful  and quiet  enjoyment of its space on any Tower or the use
and operation of Communications Equipment by any Tower Subtenant.

     (g) Each  Sprint  Collocator  agrees  to  indemnify  and  hold  the  Lessee
Indemnitees  harmless  from and  against  and in respect of any and all  Claims,
paid, suffered, incurred or


                                       28



sustained by any Lessee  Indemnitee  and in any manner arising out of, by reason
of, or in connection with the activities of such Sprint Collocator or any of its
Affiliates in connection with any work at any applicable Site performed at by or
at the direction of such Sprint  Collocator or its Affiliates (but not including
any work at any Site  that  Lessee  is  required  to  perform  pursuant  to this
Agreement).  The applicable  Sprint Collocator shall restore any property damage
to any Site or  appurtenant  property or any access roads  thereto in connection
with any such work caused by motor  vehicles,  trucks or heavy equipment of such
Sprint Collocator,  any of its employees,  agents,  contractors or designees. If
such restoration work is not performed by such Sprint  Collocator within fifteen
(15) days after written notice from Lessee (or if not capable of being performed
within such  fifteen (15) day period,  then within a  reasonable  period of time
provided  that  the  Sprint  Collocator  is  actively  and  diligently  pursuing
completion of such restoration work),  Lessee may, but shall not be obligated to
perform such work on behalf of an for the account of such Sprint Collocator, and
such Sprint  Collocator shall reimburse Lessee for the costs of such restoration
work within  fifteen (15) days after demand  thereof,  together with  reasonable
evidence of the incurrence of such costs.

     (h) Lessee agrees to and does hereby waive and  relinquish  any lien of any
kind and any and all  rights,  including  levy,  execution  and sale for  unpaid
rents,  that  Lessee may have or obtain on or with  respect  to any of  Sprint's
Communications Equipment.

     SECTION 7. Permitted Use.

     (a) Lessee  will use,  and will  permit the use of, the Leased  Property at
each Site only for the Permitted Use.

     (b) Lessee will not use, or permit to be used,  any Site, or any portion of
such Site, by Lessee, any Person (other than the applicable Sprint Collocator or
its Affiliates) or the public in such manner as might  reasonably be expected to
impair Lessor's title to, or interest or rights in, such Site, or any portion of
such Site, or in such manner as might reasonably make possible a Claim or Claims
of adverse  usage or adverse  possession  by the public,  as such, or any Person
(other than the applicable  Sprint  Collocator or any of its Affiliates),  or of
implied dedication of any of the Leased Property of such Site. Nothing contained
in this Agreement and no action or inaction by Lessor,  any Sprint Collocator or
any of their  respective  Affiliates  will be deemed or  construed  to mean that
Lessor or any Sprint  Collocator  has  granted  to Lessee  any  right,  power or
permission to do any act or make any agreement that may create,  or give rise to
or be the foundation for any such right, title, interest,  lien, charge or other
encumbrance upon the estate of Lessor in any Site.

     (c) Each Sprint  Collocator will use the Sprint  Collocation  Space at each
Site only for installation,  use, operation,  repair and replacement of Sprint's
Communications  Facility.  No Sprint Collocator will use the Sprint  Collocation
Space at any Site in such  manner  as might  reasonably  be  expected  to impair
Lessee's  rights or interest in such Site or in such manner as might  reasonably
make  possible a Claim or Claims of adverse  usage or adverse  possession by the
public, as such, or any other Person (other than the Sprint Collocator or any of
its  Affiliates),  or of implied  dedication of such Sprint  Collocation  Space.
Except as specifically permitted hereunder, Sprint shall have no right to use or
occupy any space at any Site other  than the  Sprint


                                       29



Collocation  Space that it  occupies  from time to time in  accordance  with the
terms of this Agreement.

     SECTION 8. Access.

     Except  to  the  extent  limited  by  any  restrictions  contained  in  any
applicable Ground Lease, the Permitted  Encumbrances,  this Agreement or by Law,
the  interest  or  rights of Lessee  in or to each  Site  under  this  Agreement
includes,  as an appurtenance  thereto, a non-exclusive  right for access to the
Leased Property of each Site on a 24-hour, seven (7) day per week basis, on foot
or  motor  vehicle,   including  trucks  and  other  heavy  equipment,  for  the
installation  and maintenance of the Tower and Improvements of such Site and the
Communications Facilities of Tower Subtenants. The Parties acknowledge and agree
that the right to access to any  portion  of the  Leased  Property  of each Site
granted  pursuant to this Section 8 will be granted to Lessee and its authorized
contractors,   subcontractors,   engineers,   agents,   advisors,   consultants,
representatives,  or other  persons  authorized  by Lessee and,  under  Lessee's
direct  supervision,  and to  Tower  Subtenants,  subject  to  any  restrictions
contained in the  applicable  Ground  Lease,  the Permitted  Encumbrances,  this
Agreement or by Law.

     SECTION 9. Term.

     (a) The term of this Agreement, as to each Master Lease Site, will commence
on the  Effective  Date with  respect  to the  Initial  Master  Lease  Sites and
Conversion  Closing Date (as  acknowledged  and confirmed in the applicable Site
Designation  Supplement)  with  respect to all other Master Lease Sites and will
expire on the Site Expiration Date for such Site. The term of this Agreement, as
to each Pre-Lease  Site,  will commence on the Effective Date and will expire on
the Site Expiration Date for such Site; provided; however, that the term of this
Agreement as to any Pre-Lease Site shall  automatically  expire as a result of a
Conversion  Closing under the provisions of the Agreement to Lease and Sublease,
in which event the Pre-Lease Site will  automatically be converted to and become
a Master Lease Site hereunder as of the  Conversion  Closing Date for such Site,
and no  further  instrument  will  be  required  to  evidence  such  conversion;
provided, however, that upon the request of any Party, the Parties will promptly
execute such instruments as may be reasonably  required to further evidence such
conversion.  This  Agreement  will  remain in full  force and  effect  until the
expiration or earlier termination of the term of this Agreement as to all Sites.

     (b) No surrender  by Lessee to Lessor of the Leased  Property of any Master
Lease Site or any portion of such Site,  prior to the  expiration of the Term as
to such  Master  Lease  Site  will be valid or  effective  unless  agreed to and
accepted in writing by Lessor,  and no act by Lessor,  other than such a written
acceptance, will constitute an acceptance of any such surrender.

     (c) Upon  expiration  or earlier  termination  of the Term as to any Master
Lease Site or as to any Pre-Lease Site prior to any Conversion  Closing for such
Pre-Lease Site,  Lessee,  if requested by Lessor,  will, at its cost and expense
and in accordance  with  instructions of Lessor,  within a reasonable  period of
time,  but in no event less than thirty (30) days or such shorter period of time
as may be  required  under  any  applicable  Ground  Lease,  (i) cause the Tower
Subtenants  on such  Site to stop and cease the  operation  of their  respective
Communications  Facilities  on such Site (but only to the  extent  that any such
Tower  Subtenant,  in Lessee's



                                       30



reasonable  judgment,  does not  occupy  such Site  pursuant  to a  commercially
reasonable  Collocation  Agreement)  and  (ii) to the  extent  permitted  by the
applicable Ground Lease, remove all of Lessee's Severable  Alterations from such
Site and  restore  each Site  substantially  to the  condition  it was in on the
Effective  Date,  subject  to  the  addition  of  any  permitted   Non-Severable
Alterations;  provided,  however, that upon expiration or earlier termination of
the Term as to any Site upon the  expiration or termination of any Ground Lease,
if required by the applicable Ground Lease, Lessee will remove the Tower and any
Improvements (whether or not constituting  Severable Alterations) from such Site
and otherwise  restore such Site to the condition  required under the applicable
Ground  Lease.  The Tower and any  Improvements  so  removed  (to the extent not
constituting  Severable  Alterations  of Lessee) will either be (i) delivered by
Lessee to any  Person  designated  by Lessor  for  disposition  by Lessor or its
designee,  who shall pay to Lessee  its cost of removal  thereof,  up to the net
sales proceeds such Person receives from the dispositions  thereof, or (ii) sold
or otherwise  disposed of by Lessee for not less than their salvage  value,  and
the net proceeds of such sale or other disposition after deducting Lessee's cost
of removal  thereof  will be paid to Lessor when and as received by Lessee.  Any
Severable  Alterations  not removed by Lessee within such 30-day period will, at
Lessor's  option,  be deemed  abandoned  by Lessee  and title to such  Severable
Alterations will automatically,  without further action, vest in Lessor.  Except
as set forth in Section 41, in the event of the expiration of the Term as to any
Site prior to the Site  Expiration  Outside  Date,  and without  limiting any of
Lessee's other rights or remedies hereunder,  Lessee will have no right or claim
to any refund or credit of any portion of the prepaid  Rent for such Site.  Each
Site  shall be  delivered  by Lessee to Lessor at the end of the Term as to such
Site in the  condition  required  by  this  Agreement  and  shall  otherwise  be
delivered to Lessor in good  condition,  repair and order,  reasonable  wear and
tear and  casualty  and  condemnation  which  Lessee is not  required  to repair
excepted, but without any implied warranties.

     (d) Upon  expiration  or earlier  termination  of the Term as to any Master
Lease Site or any  Pre-Lease  Site (other than as a result of the  conversion of
such Pre-Lease Site to a Master Lease Site hereunder),  Lessee,  if requested by
Lessor,  will  deliver  or cause to be  delivered  to Lessor  (i)  copies of all
written (and  effective)  Ground  Leases,  Collocation  Agreements  and material
Governmental  Approvals solely related to such Site or, to the extent not solely
related, appropriate extracts thereof, and (ii) copies of, or extracts from, all
current files and records of Lessee solely related to the  ownership,  occupancy
or leasing of such Site or, to the  extent  not so solely  related,  appropriate
extracts  thereof;  provided,  that  Lessee  will not be  required to deliver to
Lessor any privileged  document and Lessee, in its sole discretion,  may deliver
such documents in electronic form.

     (e) Unless and until Lessee has exercised its purchase option under Section
36,  Lessor will maintain or replace all Tower Removal Bonds as are in existence
as of the Effective Date with respect to the Sites (and provide Lessee copies of
same),  unless any such Tower Removal Bond is no longer required with respect to
a Site.  Lessee will, and does hereby agree to,  indemnify,  defend and hold the
Sprint  Indemnitees  harmless from, against and in respect of any and all Claims
paid, suffered, incurred or sustained by any Sprint Indemnitee and in any manner
arising  out of, by reason of or in  connection  with the  failure  of Lessee to
comply with the  conditions  of the Tower  Removal Bonds or any claim made by an
obligee on, or any payment made to, such obligee under any Tower Bond.


                                       31



     SECTION 10. Withdrawal.

     (a) The Sprint Collocator at each Site will have Withdrawal  Rights,  which
will be  exercisable  in respect of any Site only if the  applicable  Withdrawal
Date is (i) on the tenth (10th) anniversary of the Effective Date (the "Ten Year
Withdrawal Date"),  (ii) on the last day of each successive five (5) year period
thereafter or (iii) at any time after the Ten Year  Withdrawal  Date if there is
an occurrence of a Withdrawal Cause. To exercise any such Withdrawal Rights with
respect to any Site, the applicable  Sprint  Collocator will give Lessee written
notice of such exercise (the  "Withdrawal  Notice"),  as applicable (A) not less
than one (1) year prior to the Ten Year Withdrawal  Date, (B) one hundred eighty
(180) days prior to any applicable  Withdrawal  Date  pertaining to any five (5)
year period  following the Ten Year  Withdrawal  Date,  and (C) ninety (90) days
prior  to any  Withdrawal  Date  occurring  as a  result  of the  occurrence  of
Withdrawal Cause. If a Sprint  Collocator  exercises the Withdrawal Rights as to
any  Site,  the  Sprint  Collocator  will  not be  required  to pay  the  Sprint
Collocation  Charge with respect to such Site for the period occurring after the
Withdrawal Date specified in the applicable  Withdrawal  Notice.  Not later than
the Withdrawal  Date of any Site, the Sprint  Collocator  will vacate the Sprint
Collocation Space of such Site and remove, at such Sprint  Collocator's cost and
expense,  all of Sprint's  Communications  Equipment at such Site (and otherwise
leave the vacant Sprint  Collocation  Space in good condition,  repair and order
(reasonable  wear and tear and loss by casualty and  condemnation  excepted) and
shall remove all of Sprint's Communications  Equipment therefrom and restore any
damage thereto  caused by,  through or under any Sprint Group  Member),  if such
Sprint Collocation Space is occupied, whereupon the Sprint Collocator's right to
occupy  and use the  Sprint  Collocation  Space of such  Site  pursuant  to this
Agreement  will be terminated.  At the request of either the  applicable  Sprint
Collocator or Lessee, the appropriate Parties will enter into documentation,  in
form and  substance  reasonably  satisfactory  to such Parties,  evidencing  any
withdrawal effected pursuant to this Agreement.

     (b) In  addition  to,  and not in  limitation  of any  right of any  Sprint
Collocator under Section 10(a), and  notwithstanding  anything in this Agreement
to the contrary,  without limiting or diminishing  Sprint's payment  obligations
hereunder in any manner,  including  its  obligation  to pay Sprint  Collocation
Charge, no Sprint Collocator will have any obligation to occupy, or to operate a
Communications  Facility on, the Sprint  Collocation Space of any Site, and each
Sprint  Collocator will have the right,  exercisable at any time during the Term
as to any Site, to cease occupying or operating Sprint's Communications Facility
on the  Sprint  Collocation  Space of such  Site,  and  retain its right to such
Sprint  Collocation  Space and may permit any of its  Affiliates  to occupy such
Sprint  Collocation  Space, so long as the Sprint Collocator remains the primary
obligor  for the  Sprint  Collocation  Charge in  respect  of such Site and such
Affiliates'  use of the Sprint  Collocation  Space is in accordance with all the
terms and conditions of this Agreement. In no event shall such use and occupancy
by an Affiliate of Sprint diminish the applicable Sprint Collocator's rights and
obligations hereunder.

     SECTION 11. Rent and Pre-Lease Rent; Sprint Collocation Charge.

     (a) Lessee will  prepay  Rent in respect of the Leased  Property of each of
the Initial  Master Lease Sites for the entire Term as to such Master Lease Site
on the Effective  Date.  Lessee will prepay the Pre-Lease Rent in respect of the
Leased  Property of each Pre-Lease Site for the entire Term as to such Pre-Lease
Site on the Effective Date for each Pre-Lease Site. Such


                                       32




Rent and  Pre-Lease  Rent will be  specifically  allocated to the periods as set
forth in Exhibit H ("Allocated Rent"); provided,  however, that if any Pre-Lease
Site becomes a Master Lease Site as a result of a Conversion  Closing,  then the
remaining  portion of the Pre-Lease  Rent  attributable  to the periods from and
after the Conversion  Closing Date will thereafter be credited to and constitute
Rent  for such  Master  Lease  Site for the  corresponding  periods  after  such
Conversion Closing Date; and provided, further, that such allocation of Rent and
Pre-Lease  Rent  shall in no event  fail to  qualify  for the  uneven  rent test
provided for in Treasury Regulations  ss.1.467-3(c)(4).  For each calendar month
during the Term as to each Site, the Sprint Collocator at each Site will pay the
Sprint  Collocation Charge with respect to the Sprint Collocation Space for such
Site (or if there is more than one Tower at such Site on which Sprint  maintains
Sprint  Collocation  Space, with respect to the Sprint Collocation Space of each
Tower at such Site),  in advance on the first day of each such month,  beginning
on the  Effective  Date.  Lessee  agrees that,  except  pursuant to the terms of
Sections 4(f) and 41 and any  provision  contained in the Agreement to Lease and
Sublease that  expressly  provides for the same, the Rent and the Pre-Lease Rent
are non-refundable  and that Lessee will have no right of abatement,  reduction,
setoff,  counterclaim,  rescission,  refund,  defense or deduction  with respect
thereto.  The  Sprint  Collocators  each  agree  that they will have no right of
abatement (except as set forth in Section 14), reduction,  setoff, counterclaim,
rescission,  refund,  defense or  deduction  with  respect to any payment of the
Sprint Collocation Charge (including any Shared Ground Rent Increase Payment) or
any amount payable by a Sprint Collocator pursuant to Section 11(g).

     (b) The following terms will have the following definitions:

     "Pre-Lease  Rent" means,  as to any Pre-Lease  Site,  the amount prepaid by
Lessee to Lessor with respect to such  Pre-Lease Site pursuant to this Agreement
and as  specified in Exhibit H, and "Rent"  means,  as to any Master Lease Site,
the amount  prepaid by Lessee to Lessor with  respect to such Master  Lease Site
pursuant to this  Agreement  and as  specified  in Exhibit H (and as credited in
Section 11(a)).  Pre-Lease Rent and Rent are intended to constitute "fixed rent"
(as such term is defined in Treasury Regulations ss.1.467-1(h)(3)).

     "Sprint  Collocation  Charge" means, as to any Sprint  Collocation Space at
any  Site,  the  monthly  amount  payable  to Lessee  by the  applicable  Sprint
Collocator  for the sublease,  use and occupancy,  as applicable,  of the Sprint
Collocation  Space at such Site pursuant to this Agreement in an amount equal to
$1,400 per month subject to an annual  increase on each CPI Change Date equal to
the lesser of (a) three percent (3%) or (b) the  applicable  CPI Change plus two
percent (2%).

     (c) If the  Effective  Date is a day other than the first day of a calendar
month,  the  applicable  Sprint  Collocation  Charge  for the  period  from  the
Effective  Date through the end of the calendar month during which the Effective
Date  occurs  will be  prorated  on a daily  basis,  and will be included in the
calculation of and payable with the Sprint Collocation Charge for the first full
calendar  month of the Term. If the date of the expiration of the Term as to any
Site is a day other than the last day of a calendar month, the applicable Sprint
Collocation Charge for such calendar month will be prorated on a daily basis. On
the  Effective  Date,  the  aggregate  number  of Sites  for  which  the  Sprint
Collocation  Charge is payable on the Effective  Date shall not be less than the
number of Sites  determined  in  accordance  with the  methodology  set forth in
Section 2.6(h) of the Agreement to Lease and Sublease.


                                       33



     (d) If any Sprint  Collocator does not pay all or any portion of the Sprint
Collocation  Charge (the "Unpaid Amount") or any Ongoing Revenue Sharing Payment
when due and payable,  the Sprint Collocator will pay Lessee a late charge equal
to the  product of (i) the  lesser of (A) the Prime  Rate plus one and  one-half
percent  (1.5%) or (B) twelve percent (12%) per annum and (ii) the Unpaid Amount
calculated for each day from the date on which the outstanding Unpaid Amount was
due until the date of payment of such Unpaid Amount in full.

     (e)  Notwithstanding  that Rent and  Pre-Lease  Rent  shall be  prepaid  in
accordance  with Section  11(a),  the Parties agree that, for Tax purposes only,
the  Allocated  Rent for each Site shall  represent and be the amount of Rent or
Pre-Lease Rent, as applicable, for which Lessee becomes liable on account of the
use of each  applicable Site for each calendar year, in whole or in part, of the
Term.

     (f) It is the  intention  of the  Parties  that the  allocation  of Rent or
Pre-Lease  Rent to each Rent Payment Period as provided in Exhibit H constitutes
a specific  allocation of fixed rent within the meaning of Treasury  regulations
ss.  1.467-1(c)(2)(ii)(A),  with the effect that pursuant to Treasury regulation
ss.ss.  1.467-1(d)  and 1.467-2,  Lessor and Lessee,  on any federal  income tax
returns  filed by each of them (or on any Tax  return on which  their  income is
included),  shall  accrue  the  amounts of rental  income  and  rental  expense,
respectively,  set  forth for each Rent  Payment  Period in  Exhibit H under the
caption  "Proportional  Rent." Because Lessee is prepaying the Rent or Pre-Lease
Rent in respect  of each Site for the entire  Term  pursuant  to Section  11(a),
there shall be  considered to exist a loan from Lessee to Lessor for purposes of
Section 467 of the Code with  respect to each Site equal to the amount set forth
in Exhibit H under the  caption  "Section  467 Loan" (the  "Section  467 Loan").
Lessor shall deduct interest expense and Lessee shall accrue interest income, in
each case,  in an amount  equal to that set forth in Exhibit H under the caption
"Section 467 Interest" for the applicable Rent Payment Period. In no event shall
any principal or interest on any Section 467 Loan be separately  payable as such
(including  upon any  termination of this Agreement with respect to a Site),  it
being agreed and understood that these items represent characterizations for Tax
purposes  only,  and in no  event  whatsoever  shall  Lessee  be  entitled  to a
reduction of, or offset against,  the amounts of Rent and Pre-Lease Rent payable
pursuant to Section 11(a).

     (g) Each Sprint  Collocator shall pay, as additional  collocation  rent, to
Lessee,   (i)  within   fifteen  (15)  Business  Days  after  demand  by  Lessee
(accompanied by reasonable evidence that such amounts are due and payable to the
applicable  Ground  Lessors),  an amount equal to one half (1/2) of (A) the lump
sum amount necessary to be paid to lessors under any applicable Ground Leases in
order to relieve Lessee of any obligation to pay Revenue Sharing  Payments under
such Ground  Leases  during the entire  Term as to the Site  covered by any such
Ground Lease,  and (B) any Ongoing  Revenue  Sharing  Payment during the Term of
this  Agreement;  provided,  however,  that if at the time Lessee  notifies  any
Sprint  Collocator  of the  existence  and  amount of such any  Ongoing  Revenue
Sharing Payment,  Lessee also notified the Sprint  Collocator of the duration of
such Ongoing  Revenue  Sharing  Payment and the amount of and the dates on which
such Ongoing Revenue Sharing  Payments are due and payable to the Ground Lessor,
Lessor  will pay to the  Ground  Lessor or to Lessee  for  payment to the Ground
Lessor (as  directed  by  Lessee)  the amount of such  Ongoing  Revenue  Sharing
Payments  so payable on and before the date when they become due and payable for
the duration of such payment period as designated by Lessee. Upon request by any
Sprint Collocator, Lessee will provide Lessor with



                                       34



such supporting  documentation as such Sprint Collocator may reasonably  require
to evidence that any Revenue Sharing  Payments are due and payable to any Ground
Lessor.

     SECTION 12. Condition of the Sites and Obligations of Lessee.

     (a) Lessee  acknowledges  that,  as between  Lessor,  Lessee and the Sprint
Collocator,  in  respect  of each Site,  Lessee  has the  obligation,  right and
responsibility to repair and maintain such Site except as otherwise  provided in
this  Agreement,  including  without  limitation,  an obligation to monitor each
Tower to maintain the  structural  integrity of the Tower and the ability of the
Tower to hold and  support  all  Communications  Equipment  then  mounted on the
Tower, in accordance with all applicable Laws and standard  industry  practices.
Unless  any  Lessee   Indemnitee   has   received   payment   for  a  claim  for
indemnification  under Article 9 of the Agreement to Lease and Sublease  related
to such  condition,  Lessee shall have no  obligation to perform any repair of a
Site with respect to a condition  existing prior to the date hereof.  Subject to
the other provisions  contained in this Agreement,  Lessee, at its sole cost and
expense,  will  monitor,  maintain  and  repair  each Site such that the  Sprint
Collocator and Tower Subtenants may utilize such Site to the extent permitted in
this Agreement,  including,  without limitation,  the markings on each Tower and
the structural integrity of each Tower. Installation,  maintenance and repair of
each  Site  will  comply  in all  material  respects  with  all Laws and will be
performed in a manner consistent with standard  industry  practices and so as to
minimize any material disruption in the Sprint Collocator's  business conducted,
and use and  operation of Sprint's  Communications  Equipment  located,  at such
Site.  Lessee  assumes  all  responsibilities,  as to each Site,  for any fines,
levies,  and/or other penalties imposed as a result of non-compliance  with such
requirements  of the applicable  Governmental  Authorities  commencing  from and
after the Effective Date with such  requirements of the applicable  Governmental
Authorities except for non-compliance caused by Sprint or its Affiliates that is
not caused as a result of Lessee's failure to perform its obligations under this
Agreement. Sprint assumes all responsibilities,  as to each Site, for any fines,
levies, and/or other penalties imposed as a result of Sprint's or its Affiliates
past, current or future  non-compliance with such requirements of the applicable
Governmental  Authorities.  Subject to the terms of any  applicable  Collocation
Agreement in  existence as of the  Effective  Date,  Lessee will use  reasonable
efforts to cause and (if a default  would  result  under any  applicable  Ground
Lease for a failure to cause)  shall cause  Tower  Subtenants  to  maintain  and
repair all of its  Communications  Equipment on each Site in accordance with the
requirements  of this  Agreement;  provided,  however that  nothing  herein will
require  Lessee to maintain  any of  Sprint's  Communications  Equipment  or any
Communications  Equipment  of Tower  Subtenants  to the  extent  that such Tower
Subtenants  are  required to perform  such  maintenance.  Without  limiting  the
foregoing,  Lessee at its own cost and expense,  will make (or cause to be made)
all Alterations to the Sites as may be required from time to time to meet in all
material respects the requirements of applicable Laws except for the maintenance
and repair work to be  performed by the Sprint  Collocator  in  accordance  with
clause (c) of this Section 12.

     (b) For each  Site,  Lessee,  at its sole cost and  expense,  will  provide
Lessor,  as applicable,  all necessary and  appropriate  information  reasonably
requested  by Lessor for  Lessor to obtain  (and  Lessor  will  obtain  within a
reasonable amount of time) all of the certificates, permits, and other approvals
which may be required in  connection  with FCC or FAA  regulations.  Lessee will
also provide Lessor all appropriate  information  reasonably requested by Lessor
pertaining  to any  easements  or  consents  which are  required  from any third
parties with respect to


                                       35



the  operation  of such Site (to the extent  different  from the  easements  and
consents  needed prior to the  Effective  Date),  including  with respect to the
lighting  system  serving such Site,  and Lessor will  cooperate  with Lessee in
connection with such actions, as contemplated by Section 18 (without requirement
that  Lessee   expend  any  sums  to  obtain  any  such  easement  or  consent).
Notwithstanding anything herein to the contrary,  Lessee will have no obligation
to provide any  information  necessary  for Lessor or any Sprint  Collocator  to
obtain  any  certificate,   permit  or  other  approval   relating  to  Sprint's
Communications Equipment. If, as to any Site, any material certificate,  permit,
license,  easement,  or  approval  relating  to the  operation  of such  Site is
canceled,  expires,  lapses, or is otherwise withdrawn or terminated (unless the
same is the result of the acts or omissions of Lessor,  any Sprint Collocator or
their respective Affiliates, agents or employees) or, if Lessee has breached its
obligation under this Section 12(b),  then the applicable Sprint Collocator will
have the right, in addition to its other remedies pursuant to this Agreement, at
law, or in equity, to take appropriate  action to remedy any such  noncompliance
and demand  reimbursement  for any  expenses  incurred in  connection  with such
actions from Lessee.  Notwithstanding anything to the contrary contained herein,
Lessee  will have no  obligation  to obtain or  restate  (or  otherwise  provide
information  for  Lessor or any  Sprint  Collocator  to obtain or  restate)  any
certificates,  permits or  approvals  that (i) relate  exclusively  to  Sprint's
Communications Equipment or (ii) were rescinded due to a violation by any of the
same by Lessor or any Sprint Collocator. Each applicable Sprint Collocator will,
at all times,  keep, operate and maintain Sprint's  Communications  Equipment at
each Site in a safe condition,  in good repair and in accordance with applicable
Laws.

     (c) The  following  provisions  will  apply with  respect  to the  lighting
systems serving the Sites:

     For each Site,  Lessee agrees to monitor the lighting  system  serving such
Site and will notify the appropriate FAA service office of any lighting  failure
not  existing  on the  Effective  Date or at the  time  responsibility  for such
notification  is assumed by Lessee under the  Transition  Services  Agreement of
even date herewith (the "Transition  Services Agreement") in accordance with the
requirements  of  applicable  Law.  In  addition,  Lessee  agrees,  as  soon  as
practicable,  to begin a  diligent  effort  to repair  any  failed  lighting  in
accordance with the requirements of applicable Law, and to notify Lessor and the
applicable  Sprint   Collocator  upon  successful   completion  of  the  repair.
Notwithstanding  anything to the contrary  contained in this  Agreement,  Lessee
agrees to indemnify,  defend and hold each Sprint  Indemnitee  harmless from and
against any Claims  arising out of or by reason of any failed  lighting  (unless
such Claim is the  result of the action or failure to act of Lessor,  the Sprint
Collocator or their respective Affiliates,  agents or employees). In addition to
and not in limitation of Sections  31(e) and (f), if Lessee  defaults under this
Section  12(c),  Lessor or the Sprint  Collocator,  in  addition  to their other
remedies  pursuant to this  Agreement,  at law, or in equity,  may elect to take
appropriate  action to repair or replace lights and invoice Lessee. In addition,
Lessor may subject to arbitration  of any dispute  pursuant to the provisions of
Section 31(h),  terminate this Agreement as to such Site (i) if Lessor or Lessee
is at any time fined by the FAA (pursuant to a final and  non-appealable  order)
as a result of the occurrence of such default or (ii) if Lessor has given Lessee
notice of such default  under  Section  31(e)(ii)  and Lessee does not cure such
default within the applicable cure period set forth in Section 31(e)(ii), within
sixty (60) days of the occurrence of such event.  The foregoing right may not be
exercised  by Lessor if (a) such fine occurs  during a period  where Lessor or a
Sprint  Collocator is still  providing light  monitoring  service to Lessee with
respect to



                                       36



a Site and such fine  results in whole or in part from the  failure of Lessee to
receive timely information with respect to the failure of a lighting system; (b)
such  fine  occurs  during a period  where  light  monitoring  service  is being
transitioned   to  Lessee  and  Lessee  takes  prompt   action  to  address  any
non-compliance  of  which  it is  aware;  (c)  such  fine or  non-compliance  or
underlying  failure of the lighting  system results from actions or omissions of
Sprint, its Affiliates or agents or (d) such fine or non-compliance results from
the  occurrence a force majeure  event.  Notwithstanding  Lessor's  agreement to
provide such light  monitoring  service,  Lessee will perform,  at Lessee's sole
cost and expense, all repair and maintenance associated with the lighting system
at each Site.  Without in any way  affecting  Lessee's  obligations  relating to
lighting;  (i) during the Term, the applicable  Sprint  Collocator will have the
right,  at its  expense,  to install and maintain  equipment  for the purpose of
monitoring (x) the lighting system serving the Tower or the Improvements of each
Site,  and/or (y) any device of  Lessee's  used to monitor the  lighting  system
serving each Tower (provided that none of the foregoing interferes with Lessee's
monitoring of the lighting  system at such Site or any of Tower  Subtenant's use
of the Site or does not  otherwise  result in any  material  increased  costs to
Lessee or any Tower  Subtenant);  and (ii)  Lessee  will have the right,  at its
expense,  to install and maintain  equipment for the purpose of  monitoring  any
device of the Sprint  Collocator used to monitor the lighting  system  servicing
any Tower.

     (d) Without  limiting  Lessee's  obligations  under this Section 12 and the
other  provisions of this Agreement,  the Parties  acknowledge  that each Sprint
Collocator   (or  its   Affiliate)   is   licensed   by  the   FCC  to   provide
telecommunications  services  and  that the  Sites  are  used to  provide  those
services. Nothing in this Agreement will be construed to transfer control of any
FCC  authorization  held by any Sprint  Collocator  (or its Affiliate) to Lessee
with respect to  telecommunications  services provided by Sprint or to limit the
right of any Sprint  Collocator (or its Affiliate) to take all necessary actions
to comply  with its  obligations  as an FCC  licensee  or with any  other  legal
obligations to which it is or may become subject  (subject to the other terms of
this Agreement with respect to actions Sprint may take with respect to a Site).

     SECTION 13. Requirements for Alterations; Title to Alterations; Addition of
Equipment; Work on the Site.

     (a) All Alterations that are made to a Site (whether required or optional),
including, without limitation,  Alterations made to the Sprint Collocation Space
of a Site to the extent required to be performed by Lessee, will comply with the
requirements  of Section 3(f) of this  Agreement.  Title to each Alteration will
without further act or instrument be deemed to constitute a part of the Site and
be subject to this Agreement unless such Alteration is a Severable Alteration.

     (b) Whenever Lessee makes  Alterations to any Site;  constructs,  replaces,
maintains  or  repairs  the  Tower  and  Improvements  of  any  Site;  installs,
maintains, replaces or repairs, or causes Tower Subtenants to install, maintain,
replace or repair, any Equipment;  or reconstruct or restore the Leased Property
(the "Lessee Work"), the following provisions will apply:

          (i) No Lessee Work will be commenced until all certificates, licenses,
     permits,  authorizations,  consents and approvals  necessary for the Lessee
     Work, from all Governmental Authorities having jurisdiction with respect to
     any Site or the Lessee Work


                                       37



     as set out in Section 3(f) of this  Agreement,  have been obtained.  Lessor
     will reasonably  cooperate with Lessee,  at Lessee's sole cost and expense,
     as is reasonably  necessary in connection with Lessee's  obtaining all such
     certificates,  licenses,  permits,  etc.  required  to  be  issued  by  any
     Governmental Authorities in connection with Lessee's Work.

          (ii) Lessee will  commence  and perform the Lessee Work in  accordance
     with  then-current  industry-standard  practices and procedures  ("Standard
     Procedures").

          (iii) Lessee will cause the Lessee Work to be done and  completed in a
     good,  substantial and workmanlike manner and in compliance in all material
     respects with all Laws. Lessee will be solely  responsible for construction
     means, methods, techniques,  sequences and procedures, and for coordinating
     all  activities  related to the Lessee  Work,  and  neither  Lessor nor any
     Sprint  Collocator  will have any duty or  obligation to inspect the Lessee
     Work,  but  will  have  the  right  to do so,  at  reasonable  times,  upon
     reasonable prior notice and in a reasonable manner.

          (iv)  Lessee  will  promptly   commence  the  Lessee  Work  and,  once
     commenced,  diligently and continually  pursue the Lessee Work and complete
     the Lessee Work within a reasonable time. Lessee will assign such qualified
     personnel  to the Lessee Work as may be  necessary to cause the Lessee Work
     to be completed in an expeditious fashion.

          (v) All  Lessee  Work  will be  performed  at  Lessee's  sole cost and
     expense.  Lessee  will  provide  and pay for all labor,  materials,  goods,
     supplies,   equipment,   appliances,   tools,  construction  equipment  and
     machinery  and other  facilities  and  services  necessary  for the  proper
     execution and completion of the Lessee Work.  Lessee will promptly pay when
     due all costs and  expenses  incurred in  connection  with the Lessee Work.
     Lessee will pay, or cause to be paid, all fees and Taxes required by Law in
     connection with the Lessee Work.

          (vi) Lessee will be responsible  for initiating  and  maintaining  all
     necessary  safety  precautions  and programs in connection  with the Lessee
     Work,  and will take  necessary  protections  in  accordance  with Standard
     Procedures  to prevent  damage,  injury or loss to, the  Lessee  Work,  all
     persons  performing  Lessee Work on the Site,  all other persons who may be
     involved in or affected by the Lessee Work, and all materials and equipment
     to be incorporated in the Lessee Work, Tower and Improvements of such Site.

          (vii) Lessee will  procure and maintain in full force and effect,  and
     will cause its  contractors and  subcontractors  to procure and maintain in
     full force and effect,  with respect to the Lessee Work: (x) in the case of
     Lessee only but subject to Section 24, full  replacement  cost  "all-risk",
     "builder's  risk"  insurance,  insuring the Lessee Work;  and (y) the other
     types of insurance required to be maintained pursuant to Section 24 of this
     Agreement.  Such additional  insurance  policies will meet the requirements
     set  forth  elsewhere  in this  Agreement  with  respect  to the  insurance
     policies  otherwise  required to be obtained and maintained by Lessee under
     this Agreement.

     SECTION 14. Damage to the Site, Tower or the Improvements.


                                       38




     (a)  If  there  occurs  a  casualty  which  damages  or  destroys  all or a
Substantial  Portion of any Site, then within thirty (30) days after the date of
the casualty,  Lessee shall notify Lessor in writing as to whether the Site is a
Non-Restorable  Site (it being understood  Lessee may waive any condition in the
definition of Non-Restorable Site, if it believes in good faith that Restoration
may be commenced (and a building  permit issued) within one year),  which notice
will specify in detail the reasons for such determination by Lessee, and if such
Site is not a  Non-Restorable  Site the estimated  time, in Lessee's  reasonable
judgment,  for Restoration of the Site (a "Casualty Notice"). If Lessee fails to
give Casualty Notice to Lessor within such thirty (30) day period,  the affected
Site  shall  be  deemed  not  to be a  Non-Restorable  Site.  If  Lessor  or the
applicable Sprint Contributor  disagrees with any determination of Lessee in the
Casualty Notice that the Site is a Non-Restorable Site, Lessor or the applicable
Sprint  Contributor  (as applicable)  may institute  arbitration  proceedings to
determine any such matter in the manner described in Section 31(h). If such Site
is a  Non-Restorable  Site,  then (i)  either  Lessee or the  applicable  Sprint
Collocator shall have the right to terminate the applicable Sprint  Collocator's
leaseback  or other use and  occupancy of the Sprint  Collocation  Space at such
Site, upon written notice to the applicable Sprint Collocator and such leaseback
or other use and  occupancy at such Site shall  terminate as of the date of such
Notice and (ii) Lessor or the applicable Sprint Contributor, as applicable, will
have the right to terminate  this Agreement as to such Site by written notice to
Lessee within thirty (30) days after receipt of such written notice from Lessee,
whereupon the Term as to such Site will  automatically  expire as of the date of
such notice of  termination  and,  if such right is  exercised,  the  applicable
Sprint  Collocator's  leaseback  or  other  use  and  occupancy  of  the  Sprint
Collocation  Space shall be terminated by written notice to Lessee within thirty
(30) days after receipt of such written notice from Lessee, whereupon the Sprint
Collocator's  rights  and  obligations  as to the  leaseback  or  other  use and
occupancy of Sprint Collocation Space at such Site will automatically  expire as
of the date of such notice of  termination.  In all instances  Lessee shall have
the sole right to retain all insurance Proceeds related to a Non-Restorable Site
and any other Site.

     (b) If there occurs,  as to any Site, a casualty  which damages or destroys
(i)  all  or a  Substantial  Portion  of  such  Site  and  the  Site  is  not  a
Non-Restorable  Site,  or (ii)  less  than a  Substantial  Portion  of any Site,
Lessee, at its sole cost and expense, will promptly and diligently commence with
the adjustment of Lessee's  insurance Claims with respect to such event within a
period  of thirty  (30)  days  after  the date of the  damage  and,  thereafter,
promptly commence,  and diligently  prosecute to completion,  the Restoration of
the same. The  Restoration  will be carried on and completed in accordance  with
the provisions and conditions of this Section 14.

     (c) If Lessee is required to restore any Site in  accordance  with  Section
14(b),  all Proceeds of Lessee's  insurance will be held by Lessee or the Lessee
Lender and  applied to the payment of the costs of the  Restoration  and will be
paid out from time to time as the  Restoration  progresses.  Any  portion of the
Proceeds of Lessee's  insurance  applicable to a particular Site remaining after
final payment has been made for work  performed on such Site will be retained by
and be the property of Lessee.  If the cost of Restoration  exceeds the Proceeds
of Lessee's insurance, Lessee will pay the excess cost.

     (d) Without limiting  Lessee's  obligations under this Agreement in respect
of a Site subject to a casualty,  if Lessee is required to cause the Restoration
of a Site that has suffered a casualty, Lessee will make available to the Sprint
Collocator a portion of the Leased  Property of



                                       39



such Site for the purpose of the Sprint Collocator's  locating, at its sole cost
and  expense,  a  temporary  communications  facility,  and will give the Sprint
Collocator  priority  over Tower  Subtenants  at such Site as to the use of such
portion;   provided,   however,   that  (i)  the  placement  of  such  temporary
communications facility will not interfere in any material respect with Lessee's
Restoration or the continued operations of any Tower Subtenant;  (ii) the Sprint
Collocator  will obtain any permits and  approvals,  at the Sprint  Collocator's
cost,  required for the location of such  temporary  communications  facility on
such Site; and (iii) there must be Available Space on the Site for locating such
temporary communications facility.

     (e) If  Lessee  fails  at any time to  diligently  pursue  the  substantial
completion of the Restoration of the Site required under this Agreement (subject
to delay for force majeure  events other than  inability to obtain  Governmental
Approvals),  the Sprint  Collocator  may,  in  addition  to any other  available
remedy,  terminate  this  Agreement as to the Sprint  Collocator's  leaseback or
other use and occupancy of the Sprint  Collocation  Space at the applicable Site
upon giving Lessee written notice of its election to terminate at any time prior
to completion of the Restoration.

     (f) From and after any casualty as to any Site described in this Section 14
and during the period of Restoration at a Site,  the Sprint  Collocation  Charge
with respect to such Site will abate until completion of the Restoration.

     (g) The Parties  acknowledge  and agree that this  Section 14 is in lieu of
and supersedes any statutory requirements under the laws of any State applicable
to the matters set forth in this Section 14.

     SECTION 15. Tower Subtenants; Interference.

     (a) Lessee acknowledges and agrees that Lessee will not permit the addition
of any  Tower  Subtenants  at any Site if such  addition  would  materially  and
adversely affect the operation of Sprint's  Communications  Equipment  installed
prior to such Tower Subtenant's addition and the Sprint Collocator's  operation,
use or  enjoyment  of any Sprint  Collocation  Space on such Site,  taking  into
account  customary  and  commercially   reasonable  practices  for  multi-tenant
wireless communication sites and towers.

     (b) Lessee will not and will not permit any Tower  Subtenant at any Site to
(i) install or change,  alter or improve the  frequency,  power,  or type of the
Communications  Equipment  that  materially  and adversely  interferes  with the
operation of Sprint's  Communications  Equipment in existence on such Site as of
the date of such  installation,  change,  alteration  or  improvement  or is not
authorized by, or violates,  any applicable  Laws or is not made or installed in
accordance  with good  engineering  practices (and Lessee will require any Tower
Subtenant who subleases,  licenses, or uses any portion of a Site to covenant to
comply with the foregoing);  or (ii) implement a configuration  which materially
and adversely interferes with the operation of Sprint's Communications Equipment
on such Site in existence as of the date of such implementation.

     (c)  If  any  Tower  Subtenant  installs  or  operates  any  Communications
Equipment  which is in  violation  of,  any Laws,  Lessee  will cause such Tower
Subtenant to shut down such


                                       40



Communications  Equipment  as promptly as  practicable  (but in any event within
fifteen (15) days after having actual knowledge  thereof),  failing which Lessee
will shut down such Communications Equipment.

     (d)  If  any  interference  at  any  Site  (at  levels  above  commercially
acceptable levels of interference at multi-tenant wireless  communication sites)
occurs as a result of actions of Lessee or Tower Subtenants described in Section
15(b) above as to any Site,  Lessee will be  responsible  for  coordinating  and
resolving any such interference problems caused by Lessee or Tower Subtenants at
such Site,  including,  without  limitation,  using its commercially  reasonable
efforts to correct and eliminate the  interference  within two (2) Business Days
of  receipt  of  notification   from  the  Sprint   Collocator  and  perform  an
interference study in accordance with then-current industry-standard procedures.
If the  interference  cannot be  corrected  or  eliminated  within  such two (2)
Business Days period,  Lessee will cause, at Lessee's option, any of Lessee's or
Tower  Subtenants'  Communications  Equipment or  Communications  Facility  that
interferes with the operation of Sprint's  Communications  Facility's authorized
frequency spectrum or signal strength,  to be immediately powered down or turned
off,  with the  right  to turn  such  interfering  Communications  Equipment  or
facility back up or on only during off-peak hours in order to determine  whether
such  interference  continues  or has  been  eliminated;  provided,  that if any
interference  continues  at  the  time  the  power  output  of  the  interfering
Communications  Equipment is powered down,  the  Communications  Equipment  that
interferes with the operation of Sprint's  Communication  Facility or the Sprint
Collocation  Space will be turned off. If Lessee or any Tower  Subtenant  cannot
reasonably  correct or eliminate  such  interference  within thirty (30) days of
receipt of written notice from the Sprint Collocator,  Lessee will or will cause
such Tower  Subtenant to cease the operations of the  applicable  Communications
Equipment  and to stop  providing  services from the  applicable  Communications
Facility or the Leased Property at the applicable Site in its entirety until the
interference problems are resolved.

     (e)  Notwithstanding  the foregoing  provisions of this Section 15, (i) the
obligations of Lessee  hereunder as to any Site are subject to the rights of any
Tower Subtenant under any Collocation Agreement in existence as of the Effective
Date at such Site, and to the extent that the provisions of any such Collocation
Agreement  prohibits Lessee from performing the obligations of Lessee hereunder,
Lessee will be required to perform such obligations only to the extent permitted
under such  Collocation  Agreement  and shall  have no  liability  with  respect
thereto to any Sprint  Collocator  and (ii) Lessee shall have no  obligation  to
enforce any rights under a Collocation Agreement against an Affiliate of Sprint.

     (f) The applicable  Sprint Collocator will not, as to any Site, (i) install
or  change,  alter  or  improve  the  frequency,  power,  or  type  of  Sprint's
Communications  Equipment  that  materially  and adversely  interferes  with the
operation of any Tower Subtenant's Communications Equipment in existence on such
Site as of the date of such installation,  change,  alteration or improvement or
is not  authorized  by,  or  violates,  any  applicable  Laws or is not  made or
installed in accordance with good  engineering  practices or otherwise  violates
the terms of any Collocation  Agreement  existing on the Effective Date; or (ii)
implement a  configuration  which  materially and adversely  interferes with the
operation  of any Tower  Subtenant's  Communications  Equipment  on such Site in
existence as of the date of such implementation.


                                       41



     (g) If the  Sprint  Collocator  installs  or  operates  any  Communications
Equipment  which is not  authorized  by, or is in  violation  of, any Laws,  the
Sprint  Collocator  will remove  such  Communications  Equipment  as promptly as
practicable  (but in any event  within  fifteen  (15) days after  having  actual
knowledge thereof).

     (h) If any interference (at levels above commercially  acceptable levels of
interference at multi-tenant wireless communication sites) occurs as a result of
actions of the Sprint Collocator described in Section 15(f) above as to Sprint's
Communications  Equipment at any Site, the Sprint Collocator will be responsible
for  coordinating  and resolving any such  interference  problems  caused by the
Sprint  Collocator,   including,  without  limitation,  using  its  commercially
reasonable  efforts to correct and  eliminate  the  interference  within two (2)
Business Days of receipt of notification from Lessee and perform an interference
study in  accordance  with  then-current  industry-standard  procedures.  If the
interference  cannot be corrected or eliminated within such two (2) Business Day
period,  the  Sprint  Collocator  will  cause  any  of  Sprint's  Communications
Equipment  that  interferes   with  the  operation  of  any  Tower   Subtenant's
Communications  Facility's  authorized frequency spectrum or signal strength, to
be  immediately  powered  down or  turned  off,  with  the  right  to turn  such
interfering  Communications  Equipment  or  facility  back up or on only  during
off-peak  hours  specified  by  Lessee  in  order  to  determine   whether  such
interference   continues  or  has  been  eliminated;   provided,   that  if  any
interference  continues  at  the  time  the  power  output  of  the  interfering
Communications  Equipment is powered down,  the  Communications  Equipment  that
interferes with the operation of the applicable Tower Subtenant's  Communication
Facility  will be  turned  off.  If the  Sprint  Collocator  cannot  correct  or
eliminate such interference within thirty (30) days of receipt of written notice
from Lessee,  the Sprint  Collocator will cease the operations of the applicable
Communications  Equipment  and to stop  providing  services  from  the  Sprint's
Communications  Facility or the Sprint  Collocation Space of the applicable Site
in its entirety until the interference problems are resolved.

     SECTION 16. Taxes.

     (a)  Subject to  Sections  16(b) and (c) and 39(b),  and except as provided
below,  Lessee will be responsible for all Taxes upon or with respect to (A) any
of the Leased  Property,  any portion of such Leased  Property,  or any interest
therein, (B) the acquisition,  purchase, sale, financing,  leasing,  subleasing,
ownership, maintenance, repair, redelivery,  alteration, insuring, control, use,
operation, delivery, possession,  repossession,  location, storage, refinancing,
refund,   transfer   of  title,   registration,   reregistration,   transfer  of
registration,  return, or other disposition of any of the Leased Property or any
portion of such Leased Property,  or interest in such Leased  Property,  (C) the
rental payments,  receipts,  or earnings  arising from the Leased Property,  any
portion of such Leased  Property,  or any interest in such Leased  Property,  or
payable  pursuant to this  Agreement,  or any other  payment or right to receive
payment  pursuant  to any  related  document,  or (D) any  Alteration,  removal,
substitution,  maintenance,  or repair of any of the Leased Property. Subject to
Sections 16(b) and (c) and 39(b),  and except as provided below,  Lessee will be
responsible  for all Taxes upon or with respect to each Site  applicable  to all
periods  occurring after the Effective Date and during the Term as to such Site.
Lessee  will  receive  any  refunds  for Taxes paid by Lessee  pursuant  to this
Agreement. Notwithstanding the foregoing, Lessee will not be required to pay any
Taxes  payable  with  respect to a Leased Site or Other  Interest  Site,  if the
applicable  Ground Lease provides that the Ground Lessor is responsible for such
Taxes without pass-through to the applicable ground lessee and the Ground


                                       42



Lessor  actually pays any such Taxes. If the Ground Lessor does not pay any such
Taxes and either  Party  becomes  aware of it, the  Parties  will,  at  Lessee's
expense,  cooperate and use commercially  reasonable efforts to cause the Ground
Lessor to pay such Taxes.

     (b) In the taxable  periods  occurring  during the Term as to any Site, any
Taxes  (determined  without  regard to the Term) for which Lessee is responsible
under this Section 16 and that are calculated or assessed on the basis of a time
period  any  portion  of which is not  included  within the Term as to such Site
(e.g.,  Property  Taxes  assessed  annually)  will be  prorated  proportionately
between Sprint and Lessee based on the number of days in each such period during
the time period of assessment  that is included within the Term as to such Site.
Lessee's  obligations  for Taxes  under this  Section 16 will be limited to that
proportionate  amount of such Taxes attributable to the period during which this
Agreement  is in effect  with  respect  to such Site;  provided,  that any Taxes
resulting from special  assessments  or appraisals of any Site occurring  during
the  period  during  which  this  Agreement  is  in  effect  will  be  the  sole
responsibility of Lessee. Any other Taxes that are not calculated or assessed on
the basis of a time period,  but for which Lessee is responsible  under Sections
16 or 39(b),  will be prorated using a fair and equitable  proration method that
considers, among other things, the basis upon which such Taxes are assessed.

     (c)  Notwithstanding  anything  to the  contrary  in this  Section 16 or in
Section 39, the Parties  agree as follows  with respect to Property  Taxes:  (i)
Lessor or Sprint will prepare all returns with respect to Property  Taxes in the
ordinary  course and with the same degree of diligence  that it  exercises  with
respect to similar tax  compliance  matters;  (ii) Lessor or Sprint will pay all
Property Taxes on a timely basis to the appropriate  Governmental  Authority and
Lessee shall have no  responsibility  for Property Taxes other than with respect
to the Lessee Property Tax Charge and Landlord  Reimbursement  Taxes,  (iii) for
each calendar year, or portion thereof,  that is included in the Term as to each
Site, Lessee will pay to Lessor the Lessee Property Tax Charge on or before July
1 of the respective  calendar year; provided that if the Effective Date is after
July 1, the payment for the first  calendar year (or portion  thereof)  shall be
made on the Effective Date; provided further that if the Term ends prior to July
1, the payment for the final year shall be made on the last day of the Term; and
(iv) by June 15 of each  calendar  year,  Lessor  will  provide  Lessee  with an
officer's  certificate in the form of Exhibit D. Lessor,  Lessee and Sprint will
cooperate with each other,  and make available to each other such information as
will reasonably be necessary,  in connection with the preparation of tax returns
for  Property  Taxes  and any audit or  judicial  or  administrative  proceeding
relating to the same. Lessee will be responsible for all Landlord  Reimbursement
Taxes for which the  applicable  Ground  Lessor  seeks  reimbursement  under the
provisions of the Ground Lease after the Effective Date and during the Term with
respect to each Site;  provided,  however, the Parties will prorate such amounts
relating to tax periods that include the Effective  Date or the Site  Expiration
Date in a manner  consistent with the provisions of Section 16(b) and the paying
Party  will be  entitled  to  reimbursement  from the  non-paying  Party for the
non-paying  Party's  portion  of the  Landlord  Reimbursement  Taxes  paid,  and
provided  further that, with respect to the twelve month period beginning on the
Effective  Date,  Lessor will  reimburse  Lessee for the amount of the aggregate
Landlord  Reimbursement  Taxes paid by Lessee  (prorated  for such twelve  month
period with the actual  amount of Landlord  Reimbursement  Taxes during 2005 and
2006  straightlined) that exceed the product of $200 multiplied by the number of
Sites.  To the extent either Party is entitled to  reimbursement  from the other
Party  for  the  payment  of  prorated   Landlord



                                       43



Reimbursement Taxes, such reimbursement shall be due within fifteen (15) days of
the  presentation of a statement  reflecting  amounts due and appropriate  other
documentation  supporting  the  calculation  and payment of such  amounts to the
applicable  Ground Lessor. In the event of (1) the non-payment of Taxes when due
(unless  such Taxes are being  contested  in good faith and there is no material
risk of  forfeiture  of any Site as a result  of such  non-payment  of Taxes) by
Lessor  or any of its  Affiliates,  which  could  result in a  material  risk of
forfeiture  of a Site (in which case,  Lessor will  promptly  notify Lessee when
Lessor  becomes aware of such event) or (2) the failure by Lessor to deliver the
certificate  required to be delivered under clause (iv) of the first sentence of
Section 16(c) with respect to any Site by July 15 of the calendar  year,  Lessee
may notify Lessor in writing of the non-payment of Taxes and request that Lessor
or its  Affiliates  take action  within 90 days to pay such Taxes and remove any
Liens  ("90 Day  Lessee  Notice").  Within 90 days  after  receipt of the 90 Day
Lessee Notice,  Lessor will provide evidence to Lessee to support that Lessor or
its Affiliates have paid such Taxes and started the process of removing any Lien
or have  contested  such Taxes in good faith with the  appropriate  Governmental
Authority and are diligently  prosecuting such contest, and there is no material
risk of forfeiture  of the Site.  In the case of a contest,  Lessor will provide
periodic  updates  to  Lessee at least  every 30 days  thereafter  until  Lessor
provides  evidence that such Lien has been removed.  In the event that Lessor or
its  Affiliates  have elected to contest a Tax on a Site in accordance  with the
provisions of this Section, Lessor agrees that it or its Affiliates will pay all
Taxes and take all actions necessary to remove any Lien within the time provided
by the appropriate  Governmental  Authority after a final determination.  If, on
the  ninety-first  day after receipt of the 90 Day Lessee Notice,  the Lessor or
its Affiliates have not (x) paid such Taxes and otherwise started the process of
removing  any Lien or (y) taken  action to contest  such Taxes and  continuously
prosecuted such contest,  and there is no material risk of the forfeiture of the
Site,  the Lessee may (but shall be under no obligation to) pay the Tax and cure
any Lien by taking any reasonable action necessary. Lessor will reimburse Lessee
for all costs  incurred in paying such Taxes within 15 days of the  presentation
to Lessor by Lessee of  written  documentation  evidencing  the  payment of such
Taxes and the removal of any Lien for which Lessee is requesting  reimbursement.
If, at any time after delivery of the 90 Day Lessee  Notice,  a material risk of
forfeiture  of the Site arises,  Lessor  shall give prompt  notice to Lessee and
(whether or not Lessor has provided such notice)  Lessee shall have the right to
purchase  the  individual  Site  that is the  subject  of the  proceeding  for a
purchase  price of $100 by giving Lessor  written notice of its exercise of such
purchase option  (provided that in the case of a 90 Day Lessee Notice  described
in clause (1) above,  such purchase option shall not be exercisable (j) until 10
days after the earlier of the Lessee  delivery  of the 90 Day Lessee  Notice and
Lessor  having  actual  knowledge of the event giving rise to such 90 Day Lessee
Notice, and (k) unless the material risk of forfeiture is continuing),  and such
option  shall be exercised  pursuant to the  provisions  of Section 36,  mutatis
mutandis,  except that the Option  Purchase  Price shall be $100 and shall apply
only with respect to the individual Site.

     (d) Any excise, sales, use, value added,  registration,  stamp,  recording,
documentary,  conveyancing, transfer, gains and similar Taxes ("Transfer Taxes")
incurred in connection with the  transactions  contemplated by this Agreement or
the Collateral  Agreements  will be borne by Lessee.  Lessee will provide Lessor
with a  certificate  substantially  in the form of Exhibit E. The  Parties  will
cooperate in providing each other with any additional  exemption  certifications
and other similar  documentation  as appropriate.  The Party that is required by
applicable Law to file


                                       44



the tax returns with respect to any applicable  Transfer Taxes will do so at its
own expense,  and the other  Parties  will  cooperate  with  respect  thereto as
necessary.

     SECTION 17. Utilities.

     Except as set forth to the contrary  below in this Section 17,  Lessor will
have no obligation to make arrangements for or to pay any charges for connection
or use of utilities and similar services to any Site,  including but not limited
to,  electricity,  telephone,  power, and other  utilities.  As among the Sprint
Collocator and all new Tower Subtenants, Lessee will cause utility charges to be
separately  metered.  The Sprint  Collocator will pay to the applicable  utility
service provider the charges for all separately metered utility services used by
the Sprint  Collocator at each Site in the operation of Sprint's  Communications
Facility at such Site.  Notwithstanding the foregoing provisions of this Section
17, if the applicable  utility service  provider will not render a separate bill
for the Sprint  Collocator's  usage, the Sprint Collocator will reimburse Lessee
monthly for the Sprint  Collocator's actual metered usage at the rate charged to
Lessee by the applicable  utility service  provider,  or if Lessee is prohibited
from installing a separate meter to measure the Sprint  Collocator's  usage, the
Sprint Collocator may use Lessee's utility sources to provide utility service to
the  Communications  Facility,  and the Sprint  Collocator will reimburse Lessee
monthly for the Sprint  Collocator's  actual usage at the rate charged to Lessee
by the applicable  service provider (and Lessee and the Sprint  Collocator agree
to cooperate in  determining a method by which to measure or estimate the Sprint
Collocator's  usage  if  the  usage  is  not  capable  of  actual  measurement).
Notwithstanding  anything to the contrary contained herein, Lessee shall have no
obligation to provide,  maintain or pay for utility services related to Sprint's
Communication  Equipment.  Sprint shall pay for all utility services utilized by
Sprint and its Affiliates in its  operations at each Site prior to  delinquency.
For all Sites where a Sprint Collocator leases Sprint Collocation Space,  Sprint
and  Lessee  have  agreed  to a  arrangement  in a  separate  agreement  for the
segregation and transfer of  responsibility  for electrical  service serving the
lighting  system  serving each Site from the Sprint  Collocators  to Lessee.  In
connection  with such  arrangement,  each  Sprint  Collocator  agrees to pay the
utility  costs  for such  electrical  power as  follows.  If not  prohibited  by
applicable Laws, the Sprint  Collocators shall allow Lessee to access the Sprint
Collocator's  (or other Person occupying the Sprint  Collocation  Space's) power
sources  at all  Sites  with  lighting  systems  in  order to  install  lighting
monitoring  equipment  and  maintain  Tower  lighting  as  required  under  this
Agreement and the Transition  Services  Agreement.  Accessing such power sources
shall be at Lessee's  sole cost and expense.  The cost of all power  provided to
Lessee  shall be at no cost or expense to Lessee.  During each of the first four
(4)  years of the Term of this  Agreement,  Lessee  shall  obtain  its own power
source for its lighting and lighting  monitoring  equipment and transition  from
using power of the Sprint  Collocators  (or other  Persons  occupying the Sprint
Collocation  Space)  for  the  Sites  requiring  lighting  monitoring  equipment
(approximately  [1,100] Sites) as of the Effective Date at a rate of twenty-five
percent  (25%) of such  Sites by the end of each of the first  four (4) years of
the Term of this Agreement,  all as to be more fully described in the Transition
Services Agreement.

     SECTION 18. Governmental Permits.

     (a) In addition to and not in limitation of the provisions of Section 12(a)
of this Agreement,  Lessee will, at its own cost and expense,  provide to Lessor
and any Sprint  Collocator  or its  Affiliates  all  necessary  and  appropriate
information  reasonably  requested  by Lessor or such


                                       45



Sprint  Collocator  or its  Affiliates  to obtain  and  maintain  in effect  all
certificates,  permits,  licenses  and other  approvals  relating  to FAA or FCC
regulations and Lessee will, at its own cost and expense, obtain and maintain in
effect all certificates, permits, licenses and other approvals (other than those
relating  to FCC and FAA  regulations)  and comply  with all Laws,  required  or
imposed by  Governmental  Authorities  (other than those  relating to FCC or FAA
regulations),  in connection  with the operation and  maintenance  of the Leased
Property at each Site  (including  the Tower on such Site).  As part of Lessee's
obligation  to provide  information,  Lessee will provide  Lessor and any Sprint
Collocator or its Affiliates access to data reasonably  necessary to monitor the
lighting  systems  at each Site to the  extent in  Lessee's  possession  (to the
extent the Sprint Collocator is not already independently monitoring the same).

     (b) Lessee will  reasonably  cooperate  with any Sprint  Collocator  or its
Affiliates in their  efforts to obtain and maintain in effect any  certificates,
permits,  licenses and other  approvals  and to comply with any Laws required or
imposed on such Sprint Collocator by Governmental  Authorities applicable to the
Sprint Collocation Space of each Site.

     (c) Each applicable  Sprint  Collocator  will, at its own cost and expense,
obtain  and  maintain  or  cause  to  be   maintained  in  effect  all  material
certificates,  permits,  licenses and other  approvals  and comply with all Laws
required or imposed by Governmental Authorities in connection with the operation
and maintenance of the Sprint Collocation Space of each Site, including, without
limitation,  FCC regulations.  The cost of obtaining and maintaining such FCC or
FAA permits or approvals will be reimbursed to Lessor in accordance with Section
18(f).

     (d) Lessor and each applicable Sprint Collocator will reasonably  cooperate
with Lessee in Lessee's  efforts to provide  required  information and to comply
with all Laws required or imposed by Governmental Authorities applicable to each
Site.

     (e) Lessor and any Sprint Collocator will be afforded access, at reasonable
times and upon  reasonable  prior  notice,  to all of Lessee's  records,  books,
correspondence,  instructions,  blueprints, permit files, memorandum and similar
data  relating to the  compliance of the Towers with all  applicable  Laws or if
Lessor or any Sprint  Collocator  otherwise  provides  reasonable  justification
therefore, except privileged documents or where disclosure is prohibited by Law.
Lessee will also  provide  Lessor or any Sprint  Collocator  with an  electronic
interface or other real time access to Lessee's  Tower  administration  database
which will enable access to detailed information  concerning  collocations.  Any
information  described in this Section  18(e) will be open for  inspection  upon
reasonable  notice by Lessor or such  Sprint  Collocator,  at its cost,  and its
authorized  representatives at reasonable hours at Lessee's principal office and
will be retained by Lessee for period of three (3) years after the expiration of
this Agreement.

     (f) The cost of  Lessor's  or any  Sprint  Collocator's  or its  Affiliates
obtaining and maintaining all FCC and FAA permits and approvals  relating to the
operation and  maintenance  of the Leased  Property of each Site  (excluding the
Sprint  Collocation  Space) and Lessee Work,  in each case,  after the Effective
Date,  will be borne by Lessee in accordance  with  Sections  13(b)(i) and 18(c)
(the  "Reimbursable  Costs").  Lessor  will  provide  Lessee with an invoice for
Reimbursable  Costs on a monthly  basis,  which amount will be paid by Lessee to
Lessor or the applicable Sprint  Collocator,  as applicable,  within twenty (20)
Business Days of Lessee's receipt of such invoice.


                                       46




     SECTION 19. No Liens.

     (a) Lessee will not create or permit any Lien (other than Lessee  Permitted
Liens)  against any Site,  or any part of any Site.  If any such Lien created or
permitted by Lessee (other than Lessee  Permitted Liens) is filed against all or
any part of any Site, Lessee will be required to cause the same to be discharged
by payment,  satisfaction  or posting of bond  within  thirty (30) days only (i)
after Lessee has obtained knowledge of such Lien and (ii) Lessee has elected not
to contest such Lien in accordance  with Section 19(b) hereof.  If Lessee fails,
after notice and  opportunity to cure, to cause any Lien not being  contested as
provided in Section 19(b) (other than Lessee  Permitted  Liens) to be discharged
within the permitted time,  Lessor may cause it to be discharged and may pay the
amount of such Lien in order to do so. If  Lessor  makes any such  payment,  all
amounts paid by Lessor will be payable by Lessee to Lessor  within ten (10) days
of demand.

     (b) To the extent not prohibited under any applicable Ground Lease,  Lessee
may, at Lessee's sole cost and expense, in its own name and on its own behalf or
in the name of and on behalf of Lessor, in good faith, contest any claim of Lien
and,  in the  event  of any  such  contest,  may  permit  such  claim of Lien so
contested to remain unpaid,  unsatisfied and  undischarged  during the period of
such contest and any appeal from such contest; provided, that, if any portion of
any Site is subject to imminent  danger of loss or forfeiture by virtue of or by
reason  of such  claim of Lien,  such  claim of Lien  will be  complied  with as
promptly  as  practicable,  but in any  event  prior to any loss or  forfeiture.
Lessor, at the sole cost and expense of Lessee, will use commercially reasonable
efforts to cooperate fully with Lessee in any such contest.

     (c) Any Secured Lessee Loan  (including any Mortgage  execute in connection
therewith)  will be  subject  to  each  and  every  term,  covenant,  condition,
agreement,  requirement,  restriction  and provision set forth in this Agreement
and subject to all rights of Lessor hereunder.

(d) Lessor will execute any necessary easement or right of way for utilities for
any Owned Site promptly following any request by Lessee, provided such easement
or right of way does not have an adverse effect on any Sprint Collocator's use
or enjoyment of the Sprint Collocation Space of such Site or on the ownership by
Lessor of the Tower on such Site, including without limitation, the operation of
Sprint's Communications Equipment on such Site.

     (e) No  Sprint  Collocator  will  create  or  permit  (or  allow any of its
Affiliates to create or permit) any Lien arising by, through or under the Sprint
Collocator or its Affiliates (other than Permitted  Encumbrances)  against Site,
or any part of any Site. If any such Lien (other than Permitted Encumbrances) is
filed  against all or any part of any Site as a result of the acts or  omissions
of any Sprint  Collocator or any of its Affiliates,  such Sprint Collocator will
cause the same to be  discharged  by  payment,  satisfaction  or posting of bond
within thirty (30) days after obtaining  actual knowledge such Lien. If any such
Sprint   Collocator   fails  to  cause  any  such  Lien  (other  than  Permitted
Encumbrances) to be discharged  within such thirty (30) day period,  Lessee may,
after ten (10) days prior written notice to such Sprint  Collocator,  cause such
Lien to be discharged  and may pay the amount of such Lien in order to do so. If
Lessee  makes any such  payment,  all amounts  paid by Lessee will be payable by
such Sprint Collocator to Lessee upon demand.


                                       47



     SECTION 20. Condemnation.

     (a) If there occurs a Taking of all or a  Substantial  Portion of any Site,
other than a Taking for  temporary  use,  then (i) Lessee will have the right to
terminate  this  Agreement  as to such Site by written  notice to Lessor and the
applicable  Sprint  Collocator within thirty (30) days of the occurrence of such
Taking whereupon the Term will automatically expire as to such Site, on the Date
of  Taking,  as if such date were the Site  Expiration  Date as to such Site and
each Party  shall be entitled to  prosecute,  claim and retain the entire  Award
attributable  to its  respective  interest in such Site under this Agreement and
(ii) the Sprint Collocator will have the right to terminate this Agreement as to
the  Sprint  Collocator's  leaseback  or other use and  occupancy  of the Sprint
Collocation  Space by written  notice to Lessee  within  thirty (30) days of the
occurrence  of such  Taking,  whereupon  ) the  Sprint  Collocator's  rights and
obligations  as to the  leaseback  or  other  use and  occupancy  of the  Sprint
Collocation  Space at such  Site  will  automatically  expire  as of the Date of
Taking.

     (b) If there  occurs a Taking of less  than a  Substantial  Portion  of any
Site,  then this  Agreement and all duties and  obligations of Lessee under this
Agreement in respect of such Site will remain unmodified, unaffected and in full
force and effect.  Lessee will  promptly  proceed  with the  Restoration  of the
remaining  portion  of such  Site (to the  extent  commercially  feasible)  to a
condition substantially  equivalent to its condition prior to the Taking. Lessee
will be entitled to apply the Award received by Lessee to the Restoration of any
Site from time to time as such work  progresses;  provided,  that Sprint will be
entitled to prosecute and claim an amount of any Award  reflecting  its interest
under this Agreement. If the cost of the Restoration exceeds the Award recovered
by Lessee, Lessee will pay the excess cost. If the Award exceeds the cost of the
Restoration, the excess will be paid to Lessee.

     (c) If there occurs a Taking of any portion of any Site for temporary  use,
then this Agreement will remain in full force and effect as to such Site for the
remainder of the Term as to such Site; provided that,  notwithstanding  anything
to the contrary contained in this Agreement,  during such time as Lessee will be
out of  possession  of such Site,  if a Master Lease Site,  or unable to operate
such Site, if a Pre-Lease  Site, by reason of such Taking,  the failure to keep,
observe,  perform,  satisfy and comply with those terms and  conditions  of this
Agreement  compliance with which are effectively  impractical or impossible as a
result of Lessee's being out of possession or unable to operate (as  applicable)
such Site will not be an event of default  under this  Agreement.  The Award for
any such temporary  Taking  payable for any period prior to the Site  Expiration
Date will be paid to Lessee and, for any period thereafter, to Lessor.

     (d) If there occurs a Taking of any Sprint Collocation Space of any Site or
any portion of such Sprint  Collocation  Space,  for  temporary  use,  then this
Agreement will remain in full force and effect as to such Site for the remainder
of  the  then-current  Term;  provided  that,  notwithstanding  anything  to the
contrary contained in this Agreement,  during such time as the Sprint Collocator
will be out of  possession  of such Sprint  Collocation  Space by reason of such
Taking, the failure by the Sprint Collocator to keep, observe, perform, satisfy,
and comply with these terms and  conditions of this  Agreement  compliance  with
which are  effectively  impractical  or  impossible  as a result  of the  Sprint
Collocator's  being out of possession of such Sprint  Collocation Space will not
be an event of default  under  this  Agreement,  and,  in  addition,  the


                                       48



Sprint  Collocator  will not be liable for  payment  of the  Sprint  Collocation
Charge during the period of the temporary Taking.

     SECTION 21. Waiver of Subrogation; Indemnity.

     (a)  Except as  provided  in this  Agreement,  to the extent  permitted  by
applicable Law, Lessor,  Lessee and the Sprint  Collocators hereby waive any and
all rights of  recovery,  claim,  action or cause of action  against each other,
their respective agents, officers and employees, for any loss or damage that may
occur to any Site or their  respective  property at any Site, by reason of fire,
the  elements,  or any other cause  insured  against,  or required to be insured
against,  under the terms of  policies  of  property  insurance  maintained,  or
required to be  maintained,  for such Site, by Lessor,  Lessee or the applicable
Sprint  Collocator  (as the  case may be)  under  the  terms of this  Agreement,
regardless  of cause or origin.  In  addition,  Lessor,  Lessee and each  Sprint
Collocator  will  cause  each such  property  insurance  policy  carried by them
insuring the their respective  property at each Site to provide that the insurer
waives all rights of  recovery  by way of  subrogation  against  any other Party
hereto in connection with any loss or damage covered by the policy.

     (b) Subject to the  provisions  of Section  21(a) above,  Lessee  agrees to
indemnify  and to hold each Sprint  Indemnitee  harmless from any and all Claims
suffered or incurred by such Sprint  Indemnitee  by reason of, or arising out of
(i)  any  default,  breach,  performance  or  nonperformance  by  Lessee  of its
respective  obligations and covenants under this Agreement,  including,  without
limitation,  Sections  13,  15 and  18;  (ii)  any  Claims  against  any  Sprint
Indemnitee  arising  out of or  resulting  from  (x)  Lessee's  use,  operation,
maintenance  or  occupancy  of any part of the Site in violation of the terms of
this  Agreement or (y) any Tower  Subtenant's  use,  operation,  maintenance  or
occupancy  of its  Communications  Facility  in  violation  of the terms of this
Agreement;  (iii) any  failure of Lessee to comply with any  applicable  Laws or
with the  directives  of the FCC and FAA that  Lessee is required to comply with
pursuant to this Agreement or under applicable Laws; (iv) any Claims arising out
of or resulting from Lessee's acts or omissions, or the acts or omissions of any
of their respective agents, employees, engineers,  contractors,  subcontractors,
licensees,  or invitees;  and (v) any other  provision of this  Agreement  which
provides that Lessee will  indemnify and hold harmless any Sprint  Indemnitee in
respect of the matters contained in such provision.  If any action or proceeding
is brought  against any Sprint  Indemnitee  by reason of any such Claim,  Lessee
upon  notice from such Sprint  Indemnitee,  covenants  and agrees to defend such
action or proceeding at its expense.

     (c)  Subject  to  the  provisions  of  Section  21(a)  above,   the  Sprint
Collocators,  on a joint and several basis,  agree to indemnify and to hold each
Lessee  Indemnitee  harmless  from any and all  Claims  with  respect  to bodily
injury,  personal  injury or property damage suffered or incurred by such Lessee
Indemnitee by reason of, or arising out of (i) any default, breach,  performance
or  nonperformance  of the Sprint  Collocator's  obligations and covenants under
this Agreement;  (ii) any Claims against any Lessee Indemnitee arising out of or
resulting from the Sprint Collocator's use, operation,  maintenance or occupancy
of Sprint's  Communications  Equipment or any portion of the Site (including the
Sprint Collocation Space) in violation of the terms of this Agreement, (iii) the
Sprint  Collocator's  failure  to comply  with any  applicable  Laws or with the
directives of the FCC and FAA as to Sprint's Communications  Equipment; (iv) any
Claims against any Lessee


                                       49



Indemnitee arising out of or resulting from the acts or omissions of Lessor, the
Sprint Collocator, their respective Affiliates or any of the Sprint Collocator's
agents,  employees,  engineers,   contractors,   subcontractors,   licensees  or
invitees;  and (v) any other provision of this Agreement which provides that the
Sprint  Collocator  will  indemnify and hold  harmless any Lessee  Indemnitee in
respect of the matters contained in such provision.  If any action or proceeding
is brought against any Lessee Indemnitee by reason of any such Claim, the Sprint
Collocator,  upon notice from such Lessee  Indemnitee,  covenants  and agrees to
defend such action or proceeding at its expense.

     SECTION 22. Subordination of Mortgages.

     All  Mortgages  which at any time during the Term of this  Agreement may be
placed  upon  such  Site or any  portion  of such  Site  and all  documents  and
instruments  evidencing and securing any Secured  Lessee Loan,  shall be subject
and subordinate to the terms and conditions hereof.

     SECTION 23. Environmental Covenants.

     (a) For  purposes  of this  Agreement,  the  following  terms will have the
following meanings:  (i) "Hazardous Material" or "Hazardous Materials" means and
includes  petroleum  products,  flammable  explosives,   radioactive  materials,
asbestos or any material containing asbestos,  polychlorinated biphenyls, or any
hazardous,  toxic or dangerous  waste,  substance or material defined as such or
defined as a hazardous substance or any similar term, by, in or for the purposes
of the Environmental  Laws,  including,  without  limitation  Section 101(14) of
CERCLA (hereinafter defined); provided, that the term "Hazardous Materials" will
exclude  quantities  of  materials  or  substances  maintained  by  Lessor,  the
applicable Sprint Collocator, its Affiliates,  Lessee and Tower Subtenants on or
about any Site (including  Tower and  Improvements on such Site) in the ordinary
course of business,  so long as such materials are maintained in accordance with
the applicable  Environmental  Laws:  (ii) "Release" will have the meaning given
such term, or any similar term, in the Environmental  Laws,  including,  without
limitation  Section  101(22)  of  CERCLA;  and  (iii)   "Environmental  Law"  or
"Environmental  Laws" will mean any  "Super  Fund" or "Super  Lien" Law,  or any
other federal,  state or local statute, Law, ordinance,  code, rule, regulation,
order or decree,  regulating,  relating to or imposing liability or standards of
conduct  concerning any Hazardous  Materials as may now or at any time hereafter
be in effect,  including,  without  limitation,  the  following,  as same may be
amended or replaced from time to time, and all regulations  promulgated under or
in connection with: the Superfund  Amendments and  Reauthorization  Act of 1986;
The  Comprehensive  Environmental  Response,  Compensation  and Liability Act of
1980; The Clean Air Act; The Clean Water Act; The Toxic Substances  Control Act;
The Solid  Waste  Disposal  Act,  as amended by the  Resource  Conversation  and
Recovery Act; The Hazardous  Materials  Transportation Act; and The Occupational
Safety and Health Act of 1970.

     (b) Lessee  covenants and agrees that: (i) Lessee will not conduct or allow
to be conducted upon any Site any business  operations or activities,  or employ
or use a Site,  to  generate,  manufacture,  refine,  transport,  treat,  store,
handle, dispose of, transfer, produce, or process Hazardous Materials; provided,
that  Lessee  will  have the  right to  bring,  use and keep and allow any Tower
Subtenant to bring and keep on any Site in compliance with all applicable  Laws,
batteries,  generators and associated fuel tanks and other  substances  commonly
used in the


                                       50



industry  necessary for the operation and  maintenance of each Site; (ii) Lessee
will carry on its  business and  operations  at each Site in  compliance  in all
respects with, and will remain in compliance with, all applicable  Environmental
Laws and will ensure that all Tower  Subtenants  do the same:  (iii) Lessee will
not create or permit to be created  any Lien  against  any Site for the costs of
any  response,  removal or remedial  action or clean-up of Hazardous  Materials;
(iv) Lessee will  promptly  conduct and  complete all  investigations,  studies,
sampling and testing, and all remedial,  removal, and other actions necessary to
clean up and remove all Hazardous  Materials on, from or affecting  each Site in
accordance with all applicable  Environmental Laws; and (v) Lessee will promptly
notify Lessor and the applicable Sprint Collocator in writing if Lessee receives
any notice, letter, citation, order, warning,  complaint,  claim or demand that:
(w) Lessee or any Tower  Subtenant  has  violated,  or is about to violate,  any
Environmental Law, (x) there has been a Release or there is a threat of Release,
of Hazardous  Materials at or from the applicable  Site, (y) Lessee or any Tower
Subtenant  may be or is liable,  in whole or in part,  for the costs of cleaning
up, remediating,  removing or responding to a Release of Hazardous Materials, or
(z) a Site are  subject to a Lien favor of any  Governmental  Authority  for any
liability, cost or damages under any Environmental Law.

     (c) Lessor covenants and agrees that: (i) Lessor will not conduct, or allow
any Person under the direction or control of Lessor,  upon any Site any business
operations or  activities,  or employ or use a Site,  to generate,  manufacture,
refine,  transport,  treat,  store,  handle,  dispose of, transfer,  produce, or
process  Hazardous  Materials;  (ii)  Lessor  will  carry  on its  business  and
operations at each Site, if any, in  compliance in all respects  with,  and will
remain in compliance with, all applicable  Environmental  Laws; and (iii) Lessor
will not create,  or permit any Person under the  direction or control of Lessor
to create,  any Lien against any Site,  including for the costs of any response,
removal or  remedial  action or  clean-up of  Hazardous  Materials;  Lessor will
promptly notify Lessee if Lessor receives any notice, letter,  citation,  order,
warning,  complaint, claim or demand that: (w) Lessor or any Tower Subtenant has
violated,  or is about to violate,  any Environmental  Law, (x) there has been a
Release or there is a threat of Release,  of Hazardous  Materials at or from the
applicable Site, (y) Lessee,  Lessor or any Tower Subtenant may be or is liable,
in whole or in part,  for the costs of  cleaning  up,  remediating,  removing or
responding  to a Release of Hazardous  Materials,  or (z) a Site is subject to a
Lien favor of any  Governmental  Authority  for any  liability,  cost or damages
under any Environmental Law.

     (d) Lessor  agrees to indemnify  and hold the Lessee  Indemnitees  harmless
from and  against  any and all  Claims,  including  Claims of any and every kind
whatsoever  paid,  incurred,   suffered  by,  or  asserted  against  the  Lessee
Indemnitees or the Sprint Collocation Space of any Site for, with respect to, or
as a result of the  violation  or breach  of,  or the  failure  of Lessor or the
applicable  Sprint  Collocator to fully and completely keep,  observe,  satisfy,
perform and comply with, any agreement, term, covenant, condition,  requirement,
provision or restriction of Section 23(c);

     (e) Each Sprint  Collocator  covenants and agrees that as to each Site upon
which it leases or otherwise uses or occupies any Sprint  Collocation Space: (i)
Sprint  will  not  conduct  or  allow  to be  conducted  upon  any  such  Sprint
Collocation Space of any Site any business  operations or activities,  or employ
or use a Sprint Collocation Space of any Site, to generate, manufacture, refine,
transport,  treat,  store,  handle,  dispose of, transfer,  produce,  or process
Hazardous Materials;  provided,  that such Sprint Collocator will have the right
to bring, use and


                                       51



keep on the  Sprint  Collocation  Space  of any  Site  in  compliance  with  all
applicable  Laws,  batteries,  generators  and  associated  fuel tanks and other
substances  commonly  used  in the  industry  necessary  for the  operation  and
maintenance  of each  Sprint  Collocation  Space of any Site;  (ii) such  Sprint
Collocator  will carry on its business and operations on the Sprint  Collocation
Space of any Site in  compliance  in all  respects  with,  and  will  remain  in
compliance with, all applicable Environmental Laws unless non-compliance results
from the acts or omissions of Lessee or any Tower  Subtenant;  (iii) such Sprint
Collocator  will not create or permit to be created any Lien  against any Sprint
Collocation Space of any Site for the costs of any response, removal or remedial
action or clean-up of Hazardous Materials unless non-compliance results from the
acts or  omissions  of Lessee or any Tower  Subtenant;  (iv) to the extent  such
Hazardous  Materials  were  deposited  by such  Sprint  Collocator,  such Sprint
Collocator  will  promptly  conduct and  complete all  investigations,  studies,
sampling and testing, and all remedial,  removal, and other actions necessary to
clean up and remove all  Hazardous  Materials  on, from or affecting  the Sprint
Collocation  Space of each Site in accordance with all applicable  Environmental
Laws; and (v) such Sprint  Collocator  will promptly notify Lessee in writing if
such Sprint Collocator receives any notice,  letter,  citation,  order, warning,
complaint,  claim or demand that: (w) such Sprint Collocator has violated, or is
about to violate,  any Environmental  Law, (x) there has been a Release or there
is a threat of Release, of Hazardous Materials at or from the Sprint Collocation
Space of any Site, (y) such Sprint  Collocator may be or is liable,  in whole or
in part, for the costs of cleaning up, remediating,  removing or responding to a
Release of Hazardous Materials,  or (z) the Sprint Collocation Space of any Site
is subject to a Lien in favor of any  Governmental  Authority for any liability,
cost or damages under any Environmental Law.

     (f) Except to the extent arising or resulting from the acts or omissions of
Lessor or any Sprint Collocator,  Lessee agrees to indemnify and hold the Sprint
Indemnitees  harmless from and against any and all Claims,  including  Claims of
any and every kind whatsoever paid,  incurred,  suffered by, or asserted against
the Sprint  Indemnitees  or any Site for, with respect to, or as a result of the
following:  (i) the  presence  in, on, over or under,  or the  escape,  seepage,
leakage,  spillage,  discharge,  emission  or Release on or from any Site of any
Hazardous  Materials  that  occurs  after  the  Effective  Date and prior to the
applicable  Site  Expiration  Date  or  earlier  date  of  termination  of  this
Agreement; (ii) the violation of any Environmental Laws relating to or affecting
any Site that occurs after the  Effective  Date  (relating to a condition  first
existing after the Effective  Date) and prior to the applicable  Site Expiration
Date or earlier date of  termination of this  Agreement;  (iii) a Release of any
Hazardous  Materials  or the  violation  of any of the  Environmental  Laws that
occurs after the Effective Date and prior to the applicable Site Expiration Date
or earlier date of termination  of this  Agreement in connection  with any other
property owned,  operated or used by or on behalf of Lessee,  which violation or
Release  gives or may give  rise to any  rights  whatsoever  in any  Party  with
respect  to any  Site by  virtue  of any of the  Environmental  Laws;  (iv)  any
warranty or representation made by Lessee in this Section 23 is or becomes false
or untrue in any  material  respect;  or (v) the  violation or breach of, or the
failure of Lessee to fully and completely keep,  observe,  satisfy,  perform and
comply with, any agreement, term, covenant, condition, requirement, provision or
restriction of this Section 23.

     (g) Except to the extent arising or resulting from the acts or omissions of
Lessee  or a Tower  Subtenant,  each  applicable  Sprint  Collocator  agrees  to
indemnify and hold the Lessee Indemnitees  harmless from and against any and all
Claims,  including  Claims  of any and every


                                       52



kind  whatsoever  paid,  incurred,  suffered by, or asserted  against the Lessee
Indemnitees or the Sprint Collocation Space of any Site for, with respect to, or
as a result of the  violation  or breach of, or the  failure  of the  applicable
Sprint Collocator to fully and completely keep,  observe,  satisfy,  perform and
comply with, any agreement, term, covenant, condition, requirement, provision or
restriction of Section 23(e).

     (h)  Notwithstanding  anything to the  contrary in this  Agreement,  in the
event any Claim of a type giving rise to indemnification  obligations under this
Section  23 is  asserted  against a Lessee  Indemnitee  and it cannot be readily
determined that it was the act or omission of Lessor or any Sprint Collocator or
its Affiliate that gave rise to such Claim,  it will be assumed for all purposes
of this Section 23 that it was Lessee's or a Tower  Subtenant's act or omission,
Lessee will  indemnify the Sprint  Indemnitees in respect of such Claim pursuant
to Section  23(e),  and neither Lessor nor any Sprint  Collocator  will have any
obligation or liability to any Lessee Indemnitee in respect of such Claim unless
and until it is finally determined that Lessor's or a Sprint Collocator's act or
omission gave rise to such Claim. The provisions of this Section 23 will survive
the applicable Site  Expiration  Date or earlier  termination of this Agreement.
The  foregoing  provisions  of this  Section  23 are not  intended  to limit the
generality of any of the other provisions of this Agreement.

     (i) During the Term,  for any dispute or litigation  that arises during the
Term in connection with any Ground Lessor, Ground Lease,  Collocation Agreement,
Tower  Subtenant  or any other  issue  relating  to the  operation  of the Sites
(collectively,  "Disputes"),  Lessee shall have the right to control, prosecute,
settle and/or compromise such Disputes; provided that Lessee shall not settle or
compromise   such  Disputes  (i)  for  which  Lessee  is  seeking  a  claim  for
indemnification  under the  Agreement  to Lease,  (ii) which would  increase the
amounts owed under any Ground Lease or  Collocation  Agreement  during the Term,
which amounts Lessee is not obligated to pay hereunder during the Term, or (iii)
result in the termination of any Ground Lease,  without Sprint's consent (not to
be  unreasonably  withheld,  conditioned or delayed);  provided  further that if
Sprint does reasonably withhold such consent, Lessee shall nevertheless have the
right to settle  and/or  compromise  such Dispute at Lessee's own expense.  Upon
request,  Lessee shall keep Lessor reasonably  informed of the status and of the
activities  relating to the  Disputes.  Lessee shall not be required to seek the
consent of Sprint to settle any matter with a Ground  Lessor that relates to the
amount of a Revenue  Sharing  Payment,  and such  settlement  shall not diminish
Contributor's obligations under Section 11(h) with respect thereto.

     SECTION 24. Insurance.

     (a) For each Site, Lessee will procure, and will maintain in full force and
effect at all times during the Term as to the  applicable  Site,  the  following
types  of  insurance  with  respect  to  each  Site,  including  the  Tower  and
Improvements  on such Site (but excluding  Sprint's  Communications  Equipment),
paying as the same become due all premiums for such insurance:

          (i) commercial general public liability insurance insuring against all
     liability of Lessee and Lessee's officers, employees, agents, licensees and
     invitees  arising  out of,  by  reason  of or in  connection  with the use,
     occupancy  or   maintenance   of  each  Site   (including   Tower  and  the
     Improvements),  in an amount of not less than  $1,000,000 for


                                       53



     bodily injury or property damage or as a result of one occurrence,  and not
     less than $2,000,000 for bodily injury or property damage in the aggregate;

          (ii) umbrella or excess liability  insurance with limits not less than
     $5,000,000 per occurrence and in the aggregate;

          (iii) property  insurance in an amount not less than full  replacement
     cost of the  Tower  and  Improvements  of each  Site,  against  direct  and
     indirect loss or damage by fire and all other  casualties and risks covered
     under "all  risk"  insurance  respecting  the Tower and  Improvements  (but
     excluding   any  of  Sprint's   Communications   Equipment   and   Sprint's
     Improvements); and

          (iv) workers' compensation  insurance covering all employees of Lessee
     and any employees of its Affiliates performing activities on the Site.

     (b) Lessee will pay all premiums for the insurance coverage which Lessee is
required to procure and maintain under this Agreement. Each insurance policy (i)
will name Lessor and the applicable Sprint Collocator as an additional  insured;
provided,  that such requirement will only apply to liability  policies and will
have no application  to workers'  compensation  policies;  and (ii) will provide
that the policy cannot be canceled as to Lessor or the Sprint  Collocator except
after the insurer gives Lessor or the Sprint Collocator,  as applicable,  thirty
(30) days' written notice of cancellation. For each Site, Lessee will deliver to
Lessor  and the Sprint  Collocator  certificates  of  insurance  evidencing  the
existence of all insurance which Lessee is required to maintain hereunder,  such
delivery to be made  promptly  after such  insurance is obtained  (but not later
than the  Effective  Date) and not later than the date which is thirty (30) days
prior to the expiration date of any such insurance.

     (c) Each Sprint  Collocator  will procure,  and will maintain in full force
and effect at all times during the Term,  the following  types of insurance with
respect to its Sprint Collocation Space at the Sites,  paying as the same become
due all premiums for such insurance:

          (1) commercial general public liability insurance insuring against all
     liability of the Sprint  Collocator  and its officers,  employees,  agents,
     licensees and invitees  arising out of, by reason of or in connection  with
     the use,  occupancy or maintenance of the Sprint  Collocation Space of each
     Site,  in an  amount  of not less  than  $1,000,000  for  bodily  injury or
     property  damage  or as a  result  of one  occurrence,  and not  less  than
     $2,000,000 for bodily injury or property damage in the aggregate;

          (2) umbrella or excess  liability  insurance with limits not less than
     $5,000,000 per occurrence and in the aggregate; and

          (3) workers'  compensation  insurance  covering  all  employees of the
     Sprint Collocator or its Affiliates.

     (d) The applicable  Sprint  Collocator Sprint will pay all premiums for the
insurance  coverage  which the Sprint  Collocator  is  required  to procure  and
maintain under this Agreement.  Each insurance policy (i) will name Lessee as an
additional insured; provided,  however, that


                                       54



such  requirement  will  only  apply to  liability  policies  and  will  have no
application to workers'  compensation  policies;  and (ii) will provide that the
policy  cannot be canceled as to Lessee  except  after the insurer  gives Lessee
thirty (30) days' written notice of  cancellation.  Each Sprint  Collocator will
deliver to Lessee  certificates  of insurance  evidencing  the  existence of all
insurance which such Sprint Collocator is required to maintain  hereunder,  such
delivery to be made  promptly  after such  insurance is obtained  (but not later
than the  Effective  Date) and not later than the date which is thirty (30) days
prior to the expiration date of any such insurance.

     (e) All policy  amounts set forth in this Section 24 will be evaluated  and
increased (if necessary)  every five (5) years during the Term of this Agreement
to such amounts as are customarily  carried by prudent  landlords and tenants in
the telecommunications industry to insure risks associated with their respective
interests  in  facilities  comparable  to the Sites.  All  policies of insurance
required under this Section 24 will be written on companies  rated "A:VII" by AM
Best or a comparable  rating and licensed in the State where the applicable Site
to which such insurance applies is located.

     (f) Neither Lessee nor any Sprint Collocator will, on its own initiative or
pursuant to the request or requirement of any Tower Tenant or other Person, take
out separate  insurance  concurrent in form or contributing in the event of loss
with that  required to be carried by such Party in this  Section 24,  unless the
other  Party is named in the policy as an  additional  insured.  Each Party will
immediately notify the other Party whenever any such separate insurance is taken
out and will deliver to the other Party  original  certificates  evidencing  the
same.

     SECTION 25. Sprint Right of Alteration and Substitution.

     (a) Except as otherwise  provided in this Agreement,  any Sprint Collocator
will have the right  (for the  benefit  of itself or its  Affiliates)  to modify
and/or replace, at such Sprint  Collocator's  expense,  Sprint's  Communications
Equipment at any Site so long as any such  modification or replacement  does not
entail the installation of Communications  Equipment on any portion of the Tower
located outside the Sprint Tower Envelope that (i) materially differs in type or
use from  Sprint's  Communications  Equipment  then located on the Tower at such
Site, (ii) exceeds any limitations  contained in Section 6(a), (iii) impairs the
structural  integrity of the Tower or (iii)  violates the  provisions of Section
15. If at any Site the  Sprint  Collocator  desires  to modify  or  replace  any
Communications  Equipment  on  the  Tower  with  Communications  Equipment  that
materially  differs in type or use from Sprint's  Communications  Equipment then
located at such Site, such modification or replacement  Communications Equipment
may be installed  only with the consent of Lessee,  which  consent  shall not be
unreasonably  withheld (and in connection  with such consent  Lessee may require
the that such Sprint Collocator comply with a reasonable application process and
perform such testing and analysis at the cost of the Sprint  Collocator as would
be customary in accordance  with  industry  standard  requirements).  The Sprint
Collocator  at any Site also will have the right,  at its cost and  expense,  to
make any Alterations to the Site that it reasonably  deems necessary to increase
the capacity of or otherwise  augment,  strengthen or enhance a Tower,  subject,
however in the case of any structural Alterations to the submission of plans and
specifications to Lessee at least thirty (30) days prior to undertaking any such
Alteration, and the written approval of Lessee, not to be unreasonably withheld.
Any  Alterations  to a Site  shall  not  adversely  impact  any  existing  Tower
Subtenant or materially  diminish the marketability of space at a Site to future
tower subtenants,  have the


                                       55



practical  effect of limiting the number of potential  Tower  Subtenants  or the
amount of Available  Space on the Tower for potential use by  prospective  Tower
Subtenants,  or  otherwise  diminish in any  material  respect the value of such
Site.

     (b)  Notwithstanding  anything to the contrary contained in this Agreement,
if during the Term,  within  fifteen  (15)  Business  Days after  request by any
Sprint  Collocator,  Lessee will notify the applicable Sprint Collocator whether
there is any Available Space in respect of any Site. If any such Available Space
then exists,  the Sprint Collocator will have the Right of Substitution (for the
benefit of itself or any of its  Affiliates) as to such  Available  Space if, in
the  reasonable  judgment  of Lessee,  such  relocation  will not (i) impair the
structural  integrity of the Tower (and in  connection  with any exercise of the
Substitution  Right Lessee may require the that the applicable Sprint Collocator
perform such testing and analysis at the cost of the Sprint  Collocator as would
be customary in accordance  with industry  standard  requirements  in connection
with such  exercise) or cause  interference  in violation of Section 15 with the
Communications  Equipment  of any Tower  Subtenant  or diminish  the  structural
ability of the Tower to hold additional Tower Subtenants (it being  acknowledged
and agreed,  however (but subject to clause (ii)  immediately  below),  that the
Sprint  Collocator  shall be  entitled  to use at all times the  weight and wind
loading  equivalent  of the Sprint Tower  Envelope),  or (ii) have the practical
effect of limiting the number of  potential  Tower  Subtenants  at such Site (as
compared  prior  to  such  Substitution  or  the  rent  payable  by  such  Tower
Subtenants),  provided,  that  Lessee  may  prevent  a  Sprint  Collocator  from
exercising   its  Right  of   Substitution   if  such  exercise  would  cause  a
configuration of space that may reasonably be expected to limit Lessee's revenue
at any particular Site,  including  avoiding having any so-called "orphan" space
on a Tower (but with the assumption that no space on the Tower is more expensive
to rent because of its location of the Tower).  If the Sprint  Collocator elects
to exercise its Right of Substitution,  then, upon completion of the relocation,
at  the  Sprint  Collocator's  expense,  of  the  Communications  Equipment  and
Improvements  of the  Sprint  Collocator  or its  Affiliate  on  the  Site,  the
previously  existing  Sprint  Collocation  Space  of the  applicable  Site  will
automatically be released by the Sprint Collocator or its Affiliate and become a
part of the Available Space of such Site (and Sprint shall deliver such space in
good condition,  repair and order,  reasonable wear and tear excepted, and shall
remove all of Sprint's Communications Equipment therefrom and restore any damage
thereto caused by, through or under any member of the Sprint Group),  subject to
the terms of this Agreement,  and concurrently therewith, the Available Space on
such Site to which the  Communications  Equipment and  Improvements of Sprint or
its  Affiliate  has been  relocated  (but in no event shall such space be larger
than the Sprint Tower  Envelope)  will  automatically  become and constitute the
Sprint Collocation Space (provided,  however, that if the Sprint Collocator will
maintain  Communications  Equipment of less than the equivalent  weight and wind
loading  of nine (9) 1'x 6' panel  antennas  on the Tower at such Site as of the
effective date of such relocation,  the Sprint Collocation Space will contain an
additional  portion  of such  Tower so that the  Sprint  Collocation  Space will
contain the entire  amount of the Sprint  Tower  Envelope to the extent there is
adequate  contiguous  space  available on the Tower as of the effective  date of
such relocation)  subject to Section 6; provided,  however,  that the weight and
wind loading criteria for such Sprint Collocation Space shall continue to be the
same as existed prior to the exercise of the Right of Substitution.  The Parties
will at the Sprint  Collocator's  sole cost and expense  promptly  execute  such
instruments as may be reasonably required to further evidence such Substitution,
including  without  limitation an amendment to Exhibit A or the applicable  Site


                                       56



Designation  Supplement.  The Sprint  Collocator  will, at its cost and expense,
complete the relocation of its Communications Equipment.

     SECTION 26. Assignment and Subletting.

     (a) Without the prior written consent of Sprint, Lessee may not assign this
Agreement or any of Lessee's rights under this Agreement in whole or in part, or
sublease or grant  concessions  or licenses or other rights for the occupancy or
use of all or any portion of any Site;  provided,  that, subject to any required
consent of any Ground  Lessor but without the consent of Sprint,  (i) Lessee may
lease,  sublease,  license or otherwise make available  Available Space to Tower
Tenants  for the  purpose of the  installation,  operation  and  maintenance  of
Communications Equipment as contemplated by, and subject to the applicable terms
and provisions of, this Agreement (and in such event Lessee will not be released
from, and will remain fully and completely  liable for,  payment and performance
of all of its duties,  obligations and liabilities  under this Agreement);  (ii)
Lessee  may (A)  assign  this  Agreement  in whole or in part to any  Qualifying
Lessee Transferee or (B) assign all or any portion of its rights with respect to
a Site to an  Affiliate  of  Lessee  or (C)  enter  into the  Severed  Leases as
contemplated  by  Section  41;  provided  that in the  case of the  transactions
described in clauses (A) and (B)  immediately  above the assignee of Lessee must
assume and agree to perform all of Lessee's obligations  hereunder to the extent
of such assignment. In the case of an assignment of this Agreement in connection
with any transaction  described in clause (B) above (other than an assignment to
a GSI Financing  Subsidiary in which case  pursuant to Section  41(d),  from and
after  execution  of a  Severance  Lease,  Lessee  shall  be  released  from all
obligations  with respect to the Sites that are leased or pre-leased  under such
Severance  Lease),  Lessee will not be released  from, and will remain fully and
completely  liable for payment and performance  of, all its duties,  obligations
and liabilities under this Agreement.  Upon any assignment  permitted above to a
Qualifying  Lessee  Transferee,  the  obligations of Lessee under this Agreement
with respect to the Sites that are the subject of the assignment  will cease and
terminate to the extent of such assignment, and Lessor and Sprint will look only
and solely to the Person that is the  Qualifying  Lessee  Transferee of Lessee's
interest  under  this  Agreement  as to such  Sites  for  performance  of all of
Lessee's duties and obligations  under this Agreement with respect to such Sites
from and after the date of the assignment. Notwithstanding the foregoing, Lessee
may enter into Mortgages in favor of any Lessee Lender, in which case the Lessee
Lender with respect  thereto will have the right to exercise  remedies under any
such Mortgage in a manner  consistent  with the provisions of this Agreement and
any other  agreement  between  Lessee and Sprint  made in  connection  with this
transaction.

     (b) Except as  expressly  permitted  under this  Section  26(b),  no Sprint
Collocator may assign sell, convey,  transfer,  sublease or otherwise dispose of
this Agreement or any of its rights under this Agreement in whole or in part, or
sublease or grant  concessions  or licenses or other rights for the occupancy or
use of all or any portion of any Site without the consent of Lessee.  All of the
Sprint Collocators,  only in the aggregate, may sell, convey, transfer,  assign,
sublease,  or otherwise  dispose of their  interests  in the Sprint  Collocation
Space as a whole,  not in part,  without the  consent of Lessee,  to a successor
Person by way of merger, consolidation, or other reorganization or to any Person
acquiring  substantially all of the assets of all of the Sprint  Collocators and
which  Person  is  a  wireless  communications  end  user  who  intends  to  use
substantially  all  of  the  Sprint  Collocation  Space  for  its  own  wireless
communications  business.


                                       57



In addition,  each Sprint Collocator will have the unrestricted right during the
Term to sell, convey,  transfer,  assign,  sublease or otherwise dispose of such
Sprint Collocator's interest in and to the Sprint Collocation Space at any Site,
in whole or in part, without the consent of Lessee to (i) any Affiliate, or (ii)
such  Person  who is (A)  not,  and  none of  whose  Affiliates  are,  a  Lessee
Competitor,  and (B) is a  wireless  communication  end  user in any  geographic
market in which such  Sprint  Collocator  has ceased to operate or will cease to
operate  after  the  consummation  of  transaction  that is the  subject  of the
assignment  and  subletting  (collectively,  a "Sprint  Market  Assignee"),  who
intends to use such Site solely for its own  wireless  communications  business,
provided  that such Sprint  Market  Assignee  enters  into a master  collocation
agreement with Lessee,  in the form of the then most recent master  collocations
agreement  between Lessee (or its Affiliates) and the Sprint Market Assignee (or
its  Affiliates),  or if none  exists,  in the  form of the most  recent  master
collocation  agreement  between Global Parent (or its Affiliates) and Sprint, or
if none exists, a then market standard  collocation  agreement,  except that the
term and Withdrawal  Rights of the Sprint Market Assignee shall reflect the term
and Withdrawal  Rights then applicable to the Sites that are the subject of such
assignment (and the rent shall be described in the next following sentence), and
the Sprint Market Assignee shall have no further rights hereunder and, upon such
assignment,  the applicable  Sprint  Collocator shall vacate such Site, and upon
vacating such Site and removing the Sprint  Communications  Equipment  from same
and restoring  the Sprint  Collocation  Space to the condition  required by this
Agreement,  such Sprint  Collocator  shall be relieved of its obligations to pay
the Sprint  Collocation  Charge with respect to such Site (each such transaction
described in the  foregoing  provisions  of this  Section  26(b) being a "Sprint
Transfer"). If, pursuant to any assignment,  sublease,  conveyance,  transfer or
other  disposition  permitted by this Agreement to a Sprint Market  Assignee,  a
Sprint  Collocator  is no longer the  tenant of Sprint  Collocation  Space,  the
applicable  Sprint  Collocation  Charge  payable shall be an amount equal to the
product of (x) the then current Sprint  Collocation  Charge and (y) 1.25 and the
foregoing  shall  thereafter be subject to annual  adjustment as provided for in
Section 11(b). If any Sprint Collocator effects a Sprint Transfer,  then, in the
case of a Sprint Transfer to a Qualifying Sprint Transferee,  the obligations of
the Sprint  Collocator or any other Party  hereunder  constituting  Sprint under
this Agreement with respect to the portion of the Sprint  Collocation Space that
is the subject of the Sprint Transfer will cease and terminate,  and Lessee will
look only and solely to the Person that is the  Qualifying  Transferee of Sprint
Collocator's interest in and to such portion of the Sprint Collocation Space for
performance of all of the duties and obligations of the Sprint Collocator or any
other Party hereunder  constituting  Sprint under this Agreement with respect to
such Sprint  Collocation  Space from and after the date of the Sprint  Transfer.
Otherwise, in the event of any Sprint Transfer, the applicable Sprint Collocator
shall remain  liable under this  Agreement  for the  performance  of such Sprint
Collocator's  duties and  obligations  hereunder  as to such  applicable  Sprint
Collocation Space that is the subject of the Sprint Transfer.

     (c)  Subject to Section 26 and Section  36,  neither  Lessor nor any Sprint
Contributor  shall,  or shall  permit any  Affiliate  thereof  to sell,  convey,
transfer,  assign,  sublease,  encumber,  mortgage or otherwise  hypothecate  or
dispose of its interest in and to any Site, or grant  concessions or licenses or
other rights for the occupancy or use of all or any portion of any Site,  during
the Term.


                                       58




     (d) Each Party  hereby  agrees  that any attempt of any Party to assign its
interest in this Agreement or any of its rights under this  Agreement,  in whole
or in part, in violation of this Section 26 will constitute a default under this
Agreement and will be null and void ab initio.

     SECTION 27. Estoppel Certificate.

     Each Party,  from time to time upon thirty (30) days' prior  request by any
other Party,  will execute,  acknowledge and deliver to the requesting Party, or
to a Person designated by such requesting Party, a certificate stating that this
Agreement   is   unmodified   and  in  full  effect  (or,  if  there  have  been
modifications,  that this  Agreement is in full effect as modified,  and setting
forth such  modifications)  and the dates to which Rent,  Pre-Lease Rent, Sprint
Collocation  Charges and other sums payable under this Agreement have been paid,
and either  stating that to the knowledge of the signer of such  certificate  no
default exists under this Agreement or specifying each such default of which the
signer has knowledge.  The requesting  Party,  at such Party's cost and expense,
will cause such certificate to be prepared for execution by the requested Party.
Any  such  certificate  may be  relied  upon  by any  prospective  Mortgagee  or
purchaser of any portion of a Site.

     SECTION 28. Holding Over.

     (a) If Lessee  remains in possession  of the Leased  Property of any Master
Lease Site after  expiration or  termination of the Term as to such Master Lease
Site without any express  written  agreement by Lessor,  then Lessee will be and
become a tenant at sufferance,  and there will be no renewal or extension of the
Term as to such Master Lease Site by operation of Law.

     (b) If during the Term of this Agreement any Sprint  Collocator  remains in
possession  of the  Sprint  Collocation  Space of any Site after  expiration  or
termination  of the Sprint  Collocator's  leaseback of or other right to use and
occupy the Sprint  Collocation  Space at such Site  without any express  written
agreement by Lessee, then such Sprint Collocator will be a month-to-month tenant
with the monthly  Sprint  Collocation  Charge equal to one hundred fifty percent
(150%) of the monthly Sprint  Collocation  Charge last  applicable to the Sprint
Collocation  Space  and  subject  to all of the  other  terms  set forth in this
Agreement, and there will be no renewal or extension of this Agreement as to the
lease of the Sprint Collocation Space by operation of Law.

     SECTION 29. Rights of Entry and Inspection.

     (a)  Lessor  and the  applicable  Sprint  Collocator  and their  respective
representatives,  agents and employees,  at such Person's sole cost and expense,
will be entitled to enter any  portion of any Site at all  reasonable  times and
with advance notice in accordance  with and to the extent required under Section
6(a)  for  the  purposes  of  inspecting  such  Site,   making  any  repairs  or
replacements or performing any maintenance, and performing any work on the Site,
to the extent required or permitted by this  Agreement.  Nothing in this Section
29 will  imply or  impose  any duty or  obligation  upon  Lessor  or any  Sprint
Collocator to enter upon any Site at any time for any purpose, or to inspect any
Site at any time,  or to perform,  or pay the cost of, any work which  Lessee is
required to perform under any provision of this  Agreement,  and neither  Lessor
nor any Sprint Collocator has any such duty or obligation.


                                       59




     (b) Each Sprint Collocator will permit Lessee and Lessee's  representatives
to inspect Sprint's Communications  Equipment located on the Tower in accordance
with industry standard practices to ascertain  compliance with the provisions of
this  Agreement.  Except in the  event of an  Emergency  only,  and only for the
purposed of making repairs or  replacements  to address such  Emergency,  Lessee
shall not be  entitled  to have  access  to or  inspect  any  other of  Sprint's
Communications  Equipment.  Nothing in this  Section 29 will imply or impose any
duty or  obligation  upon  Lessee  to  enter  upon  any Site at any time for any
purpose,  or to inspect the Leased  Property at any time, or to perform,  or pay
the cost of, any work which Sprint is required to perform under any provision of
this  Agreement,  and  Lessee  has  no  such  duty  or  obligation.  The  Sprint
Collocators agree to indemnify and hold the Lessee Indemnitees harmless from and
against  and in respect  of any and all  Claims,  paid,  suffered,  incurred  or
sustained by any Lessee  Indemnitee  and in any manner arising out of, by reason
of,  or in  connection  with any  entry  onto any Site by  Sprint  or any of its
Affiliates, employees, agents, contractors,  subcontractors,  engineers, agents,
advisors, consultants or representatives.

     SECTION 30. Right to Act for Lessee.

     (a) In addition to and not in  limitation of any other remedy Lessor or any
Sprint  Collocator  may have under this  Agreement,  if Lessee fails to make any
payment or to take any other action (or to cause any Tower Subtenant to take any
action)  when and as required  under this  Agreement,  subject to the  following
sentence,  Lessor or the applicable  Sprint  Collocator may, without demand upon
Lessee and without  waiving or  releasing  Lessee from any duty,  obligation  or
liability  under this  Agreement,  make any such  payment or take any such other
action required of Lessee.  Unless Lessee's  failure results in or relates to an
Emergency,  Lessor or the Sprint Collocator, as applicable,  will give Lessee at
least ten (10) days prior written notice of Lessor's or the Sprint  Collocator's
intended  action and Lessee will have the right to cure such failure within such
ten (10) day period  unless the same is not able to be remedied in such ten (10)
day period,  in which event such ten (10) day period will be extended,  provided
Lessee has commenced such cure within such ten (10) day period and  continuously
prosecutes  the  performance of the same to completion  with due  diligence.  No
notice will be required in the event of an  Emergency.  The actions which Lessor
or the Sprint  Collocator  may take will  include,  but are not  limited to, the
performance  of  maintenance  or repairs and the making of  replacements  to the
Towers and  Improvements on each Site (and Lessor or the Sprint  Collocator,  as
applicable, will have full access to the Sites for such purpose), the payment of
insurance  premiums  which Lessee is required to pay under this  Agreement,  the
payment of Ground Rent which  Lessee is required to pay under the Ground  Leases
and the payment of Taxes which  Lessee is required to pay under this  Agreement.
Lessor or the  Sprint  Collocator  may pay all  incidental  costs  and  expenses
incurred in  exercising  its rights  under this  Agreement,  including,  without
limitation,  reasonable attorneys' fees and expenses, penalties,  re-instatement
fees, late charges, and interest.  An amount equal to one hundred twenty percent
(120%) of the total  amount of the costs and  expenses  (including  salaries and
benefits of employees) incurred by Lessor or the Sprint Collocator in accordance
with this Section 30 is referred to as the "Reimbursable  Maintenance Expenses",
and will be due and payable by Lessee upon demand and bear  interest at the rate
of twelve percent (12%) per annum from the date five (5) days after demand until
paid by Lessee.

     (b) For purposes of this Section 30, the term  "Emergency"  means any event
that causes,  has caused or is likely to cause: (i) any bodily injury,  personal
injury  or  property  damage;


                                       60



(ii) the  immediate  suspension,  revocation,  termination  or any other adverse
effect as to any licenses and/or permits;  or (iii) any material  adverse effect
on the  ability  of  any  Sprint  Collocator  or its  Affiliates,  or any  Tower
Subtenants, to operate Communications Equipment; or (iv) any failure of any Site
to comply in any material  respect with  applicable  FCC or FAA  regulations  or
other licensing requirements.

     SECTION 31. Defaults and Remedies.

     (a) The  following  events  constitute  events of  default by Lessor or any
Sprint Contributor:

          (i)  if  Lessor  or  any  Sprint  Contributor  fails  to  perform  any
     obligation  under any Ground  Lease (other than any  obligation  assumed by
     Lessee  hereunder)  that  results in a default or breach  under such Ground
     Lease and such failure  continues (x) for more ten (10) days, or (y) if the
     cure period  under such Ground Lease for such default or breach (A) is less
     than ten (10) days,  such lesser period of time or, (B) is greater than ten
     (10) days,  such greater  period of time, in each case after written notice
     from Lessee;

          (ii) if Lessor or any Sprint  Contributor  violates  or  breaches,  or
     fails to observe,  keep,  satisfy,  perform and comply  with,  any material
     agreement, term, covenant, condition, requirement, restriction or provision
     of this  Agreement  in respect of any Site,  and (x) Lessor or such  Sprint
     Contributor (as applicable) does not cure such violation, breach or failure
     within  thirty (30) days after Lessee gives Lessor  written  notice of such
     violation,  breach or failure (or such lesser period provided  herein),  or
     (y) such violation, breach or failure (which is not a failure to pay money)
     is  incapable of being cured  within  thirty (30) days,  and Lessor or such
     Sprint   Contributor  (as  applicable)  does  not  commence  to  cure  such
     violation,  breach or  failure  within  such  thirty  (30) day  period  and
     continuously  prosecute the  performance of the same to completion with due
     diligence,  provided,  if any such default  causes  Lessee to be in default
     under any Collocation  Agreement  existing prior to the Effective Date, the
     thirty (30) day periods referenced above in this Section 31(a)(ii) shall be
     reduced  to such  lesser  time  period  as  Lessee  notifies  Lessor or the
     appropriate  Sprint  Contributor in writing that Lessee has to comply under
     such Collocation Agreement;

          (iii) if Lessor or any Sprint  Contributor  becomes insolvent or makes
     an assignment for the benefit of creditors;  or if any action is brought by
     Lessor seeking its  dissolution or liquidation of its assets or seeking the
     appointment of a trustee, interim trustee,  receiver or other custodian for
     any of its  property;  or if Lessor or any Sprint  Contributor  commences a
     voluntary proceeding under the Federal Bankruptcy Code; or if any action or
     petition is otherwise  brought by Lessor seeking similar relief or alleging
     that it is insolvent  or unable to pay its debts as they mature;  or if any
     action is brought  against Lessor seeking its dissolution or liquidation of
     any of its  assets,  or  seeking  the  appointment  of a  trustee,  interim
     trustee,  receiver or other custodian for any of its property, and any such
     action is consented to or acquiesced in by Lessor or any Sprint Contributor
     or is not  dismissed  within  ninety (90) days after the date upon which it
     was instituted;  or if any proceeding under the Federal  Bankruptcy Code is
     instituted  against Lessor or any Sprint  Contributor  and (A) an order for
     relief is entered in such  proceeding,


                                       61



     or (B) such  proceeding  is consented to or  acquiesced in by Lessor or any
     Sprint  Contributor  or is not dismissed  within ninety (90) days after the
     date  upon  which  it was  instituted;  or if any  action  or  petition  is
     otherwise brought against Lessor seeking similar relief or alleging that it
     is  insolvent,  unable to pay its debts as they  mature  or  generally  not
     paying  its  debts as they  become  due,  and such  action or  petition  is
     consented to or acquiesced in by Lessor or any Sprint Contributor or is not
     dismissed within ninety (90) days after the date upon which it was brought;
     or

          (iv) if the lease or pre-lease of any Site to Lessee is rejected under
     Section 365 of the Federal Bankruptcy Code.

     (b) Upon the  occurrence of any event of default by any Sprint  Contributor
under  Section  31(a)(iii)  or  31(a)(iv),   Lessee  may  terminate  any  Sprint
Collocator's  rights with respect to the leaseback or other use and occupancy of
the Sprint Collocation Space at any or all Sites of such Sprint Contributor,  by
giving  Sprint  written  notice  of  termination,   and  the  applicable  Sprint
Collocator's  rights with respect to the leaseback or other use and occupancy of
the Sprint  Collocation  Space at the affected Site(s) will be terminated thirty
(30) days after Sprint's receipt of such termination notice, provided,  however,
this  Agreement  shall  otherwise  remain  in full  force and  effect.  Upon the
occurrence  of any event of default by Lessor and any Sprint  Contributor  under
Section 31(a)(i) or 31(a)(ii) in respect of any Site,  Lessee may terminate,  at
its  election,  Sprint's  rights with respect to the  leaseback or other use and
occupancy of the Sprint Collocation Space at the affected Site, by giving Sprint
written notice of  termination of Sprint's  rights with respect to the leaseback
or other use and occupancy of the Sprint Collocation Space at the affected Site,
and this  Agreement  will be  terminated  as to Sprint's  rights with respect to
Collocation  Space at the affected Site thirty (30) days after Sprint's  receipt
of such termination notice,  provided,  however,  this Agreement shall otherwise
remain in full force and effect. Additionally,  upon the occurrence of events of
default not cured during the applicable  time period for curing same (whether of
the same or different  types) by any of Lessor or any Sprint  Contributor  under
Section 31(a), in respect of more than twenty percent (20%) of the Sites, in the
aggregate,  during any  consecutive  five (5) year period,  which (i) results in
material  harm  to the  business  and  operations  of  Lessee,  and  subject  to
arbitration  under  Section  31(h) as to any  dispute as to whether any event of
default has occurred and is continuing,  and (ii) such default is not the result
of any  default  of Lessee  hereunder  or the  occurrence  of one or more  force
majeure events, Lessee shall have the right to (x) purchase all of the Sites for
an  aggregate  purchase  price of $100 by giving  Lessor  written  notice of its
exercise of such  purchase  option  (which  notice  shall  contain a  reasonably
specific  description of each of such events of default),  and such option shall
be exercised pursuant to the provisions of Section 36, mutatis mutandis,  except
that the Option  Purchase  Price shall be $100 and/or (y)  terminate  any Sprint
Collocator's  rights with respect to the leaseback or other use and occupancy of
the Sprint  Collocation Space at any or all Sites.  Notwithstanding  anything to
the  contrary  contained  herein,  if  Lessor  disputes  that  it is in  default
hereunder,  and Lessor is determined to be in default pursuant to Section 31(h),
if Lessor,  within  twenty  (20) days  following a  determination  that it is in
default  under  Section  31(h),  commences  cure of such default and  diligently
completes  same,  an event of default with respect to Lessor shall not be deemed
to have occurred. Any termination by Lessee of a Sprint Collocator's rights with
respect to any or all Sites pursuant to this Section 31(b) shall not diminish or
limit any  obligation  of the Sprint  Collocator  to pay the Sprint  Collocation
Charge provided for herein or any other amounts with respect to such Site(s).


                                       62



     (c)  The  following  events  constitute  events  of  default  by  a  Sprint
Collocator:

          (i) if the Sprint  Collocators  fail to timely pay any  portion of the
     Sprint Collocation Charge, and any such failure continues for ten (10) days
     after written notice from Lessee (it being  understood the aggregate Sprint
     Collocation Charge is a single non-severable payment with respect to all of
     the Sites);

          (ii) if any Sprint  Collocator  fails to timely  pay any other  amount
     payable  under   hereunder  not   constituting  a  portion  of  the  Sprint
     Collocation  Charge,  and such  failure  continues  for ten (10) days after
     written notice from Lessee;

          (iii) if any  Sprint  Collocator  violates  or  breaches,  or fails to
     observe,  keep,  satisfy,  perform and comply with, any material agreement,
     term, covenant,  condition,  requirement,  restriction or provision of this
     Agreement in respect of any Site, and (x) such Sprint  Collocator  does not
     cure such violation, breach or failure within thirty (30) days after Lessee
     gives such Sprint  Collocator  written notice of such violation,  breach or
     failure,  or (y) such violation,  breach or failure (which is not a failure
     to pay money) is incapable of being cured within thirty (30) days, and such
     Sprint  Collocator  does not  commence  to cure such  violation,  breach or
     failure within such thirty (30) day period and  continuously  prosecute the
     performance of the same to completion with due diligence;

          (iv) if any Sprint Collocator becomes insolvent or makes an assignment
     for the  benefit of  creditors;  or if any action is brought by such Sprint
     Collocator  seeking its dissolution or liquidation of its assets or seeking
     the appointment of a trustee, interim trustee,  receiver or other custodian
     for any of its property; or if such Sprint Collocator commences a voluntary
     proceeding under the Federal  Bankruptcy Code; or if any action or petition
     is otherwise  brought by such Sprint  Collocator  seeking similar relief or
     alleging that it is insolvent or unable to pay its debts as they mature; or
     if any  action is  brought  against  such  Sprint  Collocator  seeking  its
     dissolution or liquidation of any of its assets, or seeking the appointment
     of a trustee,  interim trustee,  receiver or other custodian for any of its
     property,  and any such action is  consented  to or  acquiesced  in by such
     Sprint  Collocator  or is not  dismissed  within ninety (90) days after the
     date upon which it was instituted;  or if any proceeding  under the Federal
     Bankruptcy  Code is instituted  against such Sprint  Collocator  and (A) an
     order for relief is entered in such  proceeding,  or (B) such proceeding is
     consented to or acquiesced in by such Sprint Collocator or is not dismissed
     within ninety (90) days after the date upon which it was instituted;  or if
     any action or petition is otherwise  brought against such Sprint Collocator
     seeking similar relief or alleging that it is insolvent,  unable to pay its
     debts as they mature or generally  not paying its debts as they become due,
     and such action or petition is consented to or acquiesced in by such Sprint
     Collocator or is not dismissed  within ninety (90) days after the date upon
     which it was brought; or

          (v) If the Sprint  Collocator  rejects its rights to sublease or right
     to use any Site under Section 365 of the Bankruptcy Code.

     (d) Upon the  occurrence  of any event of default by any Sprint  Collocator
under  Section  31(c)(i),  31(c)(iv)  or  31(c)(v),  Lessee may  terminate  this
Agreement  as to the  leaseback


                                       63



or other use and occupancy of the Sprint  Collocation  Space at any or all Sites
leased,  used or  occupied  by such  Sprint  Collocator  by giving  such  Sprint
Collocator written notice of termination,  and this Agreement will be terminated
as to such Sites thirty (30) days after such Sprint Collocator's receipt of such
termination notice;  provided,  however that no such notice of termination given
as a result of a failure set forth in Section 31(c)(i) shall be effective unless
and until such failure  continues for an additional ten (10) Business Day period
after Lessee has given the Sprint  Collocators  an additional  written notice of
such failure which contains the following  statement in capital letters and bold
face type:  "THIS NOTICE  CONSTITUTES THE FINAL NOTICE OF NON-PAYMENT AND IF YOU
FAIL TO PAY ALL  OUTSTANDING  AMOUNTS  WITHIN TEN (10)  BUSINESS DAYS AFTER THIS
NOTICE,  YOUR  RIGHTS  UNDER THE  MASTER  LEASE AND  SUBLEASE  AGREEMENT  MAY BE
TERMINATED."  Upon  the  occurrence  of any  event  of  default  by  any  Sprint
Collocator under Section 31(c)(ii) as to the Sprint Collocation Space of a Site,
Lessee may terminate,  at its election, this Agreement as to the applicable Site
or such Sprint  Collocator's  leaseback or other use and occupancy of the Sprint
Collocation Space at such Site at any time prior to the ninetieth (90) day after
the occurrence of such event of default by giving such Sprint Collocator written
notice  of  termination,  and  this  Agreement  will  be  terminated  as to  the
applicable Site or as to the applicable Sprint Collocation Space, as applicable,
thirty  (30) days after such  Sprint  Collocator's  receipt of such  termination
notice. Additionally,  upon the occurrence of events of default not cured during
the  applicable  time period for curing same  (whether of the same or  different
types) by the  Sprint  Collocators  (or any of them)  under  Section  31(c),  in
respect of more than twenty percent (20%) of the Sites, in the aggregate, during
any consecutive five (5) year period,  which (i) results in material harm to the
business and  operations  of Lessee,  and subject to  arbitration  under Section
31(h) as to any dispute as to whether any event of default has  occurred  and is
continuing,  and (ii) such  default is not the  result of any  default of Lessee
hereunder or the  occurrence of one or more force majeure  events,  Lessee shall
have the right to (x) purchase all of the Sites for an aggregate  purchase price
of $100 by giving Lessor written notice of its exercise of such purchase  option
(which notice shall contain a reasonably  specific  description  of each of such
events  of  default),  and  such  option  shall  be  exercised  pursuant  to the
provisions  of Section 36,  mutatis  mutandis,  except that the Option  Purchase
Price shall be $100 and/or (y)  terminate  any Sprint  Collocator's  rights with
respect to the  leaseback or other use and  occupancy of the Sprint  Collocation
Space at any or all Sites.  Notwithstanding  anything to the contrary  contained
herein, if the Sprint  Collocators  disputes that they are in default hereunder,
and a Sprint  Collocator  is  determined  to be in default  pursuant  to Section
31(h),  if  the  Sprint  Collocators,   within  twenty  (20)  days  following  a
determination  that they are in default under Section  31(h),  commences cure of
such default and diligently  completes same, an event of default with respect to
the Sprint Collocators shall not be deemed to have occurred.

     (e) The following events constitute events of default by Lessee:

          (i) (A) if Lessee  fails to timely  pay  Ground  Rent as  provided  in
     Section 4(a) or otherwise fails to perform any obligation assumed by Lessee
     hereunder  under any Ground  Lease as  provided  in  Section  4(a) and such
     failure  continues  for more  than (x) ten  (10)  days,  or (y) if the cure
     period under the Ground  Lease is (I) less than ten (10) days,  such lesser
     period of time or (II) is greater than ten (10) days,  such greater  period
     of time,  in each case after written  notice from Lessor or the  applicable
     Sprint Contributor, or (B) if Lessee otherwise fails to make payment of any
     amount due under this  Agreement  and


                                       64



     such failure  continues  for more than ten (10) days after  written  notice
     from Lessor (provided, the foregoing shall not be a default if Lessee is in
     a good faith dispute under a Ground Lease, and the Ground Lessor thereunder
     may not  exercise  any right to  terminate  the  Ground  Lease  during  the
     pendancy of such dispute);

          (ii) if Lessee violates or breaches,  or fails to fully and completely
     observe,  keep,  satisfy,  perform  and comply  with,  any  material  term,
     covenant,  condition,   requirement,   restriction  or  provision  of  this
     Agreement  with  respect  to any Site,  and does not cure  such  violation,
     breach or  failure  within  thirty  (30) days  after  Lessor or any  Sprint
     Collocator gives Lessee written notice of such failure, or, if such failure
     (which is not a failure to pay money) can be cured,  but not within  thirty
     (30) days,  and Lessee does not commence to cure such  failure  within such
     thirty (30) day period and  continuously  prosecute the  performance of the
     same to completion with due diligence;

          (iii) if  Lessee  becomes  insolvent  or makes an  assignment  for the
     benefit of  creditors;  or if any action is brought by Lessee  seeking  its
     dissolution or  liquidation  of its assets or seeking the  appointment of a
     trustee,  interim  trustee,  receiver  or  other  custodian  for any of its
     property;  or if Lessee commences a voluntary  proceeding under the Federal
     Bankruptcy  Code;  or if any action or  petition  is  otherwise  brought by
     Lessee seeking similar relief or alleging that it is insolvent or unable to
     pay its debts as they mature;  or if any action is brought  against  Lessee
     seeking its dissolution or liquidation of any of its assets, or seeking the
     appointment of a trustee, interim trustee,  receiver or other custodian for
     any of its  property,  and any such action is consented to or acquiesced in
     by Lessee or is not  dismissed  within ninety (90) days after the date upon
     which it was instituted;  or if any proceeding under the Federal Bankruptcy
     Code is instituted against Lessee and (A) an order for relief is entered in
     such proceeding, or (B) such proceeding is consented to or acquiesced in by
     Lessee or is not  dismissed  within  ninety  (90) days  after the date upon
     which it was instituted;  or if any action or petition is otherwise brought
     against  Lessee  seeking  similar  relief or alleging that it is insolvent,
     unable to pay its debts as they mature or generally not paying its debts as
     they become due, and such action or petition is consented to or  acquiesced
     in by Lessee or is not  dismissed  within  thirty  (30) days after the date
     upon which it was brought; or

          (iv) If the  leaseback to any Sprint  Collocator or other right by any
     Sprint  Collocator  to use and  occupy  the  Sprint  Collocation  Space  is
     rejected by Lessee under Section 365 of the Federal Bankruptcy Code.

     (f) Upon the  occurrence  of any event of default by Lessee  under  Section
31(e) in respect of any Site (or if Lessor or any applicable Sprint  Contributor
elects to terminate  this  Agreement in respect of any Site  pursuant to Section
12(c)), Lessor or any applicable Sprint Contributor may terminate this Agreement
as to the applicable  Site by giving Lessee written notice of  termination,  and
this  Agreement  will be terminated  as to such Site, at the time  designated by
Lessor or such Sprint Collocator, as applicable, in its notice of termination to
Lessee,  unless otherwise provided herein.  Upon (i) the occurrence of events of
default not cured during the applicable  time period for curing same (whether of
the same or different  types),  by Lessee under Section 31(e) in respect of more
than twenty percent (20%) of the Sites, in the aggregate, during any consecutive
five (5) year  period,  which (A) results in material  harm to the


                                       65



business  and  operations  of Lessor or the Sprint  Collocators,  and subject to
arbitration  under  Section  31(h) as to any  dispute as to whether any event of
default has occurred and is continuing,  and, (B) such default is not the result
of any default of Lessor or any Sprint Collocator hereunder or the occurrence of
one or more force majeure events, and (ii) failure of Guarantor after reasonable
advance notice from Lessor to perform its payment  obligations  under Section 42
with  respect to such event of  default,  Lessor or any  Sprint  Collocator  may
terminate  this  Agreement as to all Sites by giving  Lessee  written  notice of
termination  (which notice shall contain a reasonably  specific  description  of
each of such events of default), and this Agreement will be terminated as to all
Sites at the time  designated by Lessor or such Sprint  Collocator in its notice
of termination  to Lessee.  Notwithstanding  anything to the contrary  contained
herein,  if Lessee  disputes  that it is in  default  hereunder,  and  Lessee is
determined to be in default pursuant to Section 31(h), if Lessee (or Guarantor),
within twenty (20) days  following a  determination  that it is in default under
Section 31(h),  commences cure of such default and diligently completes same, an
event of default with respect to Lessee shall not be deemed to have occurred.

     (g) Lessor, any Sprint Collocator or Lessee, as applicable,  may pursue any
remedy or remedies provided in this Agreement or any remedy or remedies provided
for or  allowed  by law  or in  equity,  separately  or  concurrently  or in any
combination,  including,  without limitation,  (i) specific performance or other
equitable remedies;  or (ii) money damages arising out of such default; or (iii)
in the case of Lessee's default, Lessor or any Sprint Collocator may perform, on
behalf  of  Lessee,  Lessee's  obligations  under  the  terms of this  Agreement
pursuant to Section 31.

     (h) Notwithstanding  anything in this Agreement to the contrary, if (i) any
Party receives any notice of a default under this  Agreement or (ii) Lessor,  or
any Sprint Contributor or Sprint Collocator gives Lessee a notice of termination
pursuant  to  Section  31(f),  or  (iii)  Lessee  gives  Lessor  or  any  Sprint
Contributor  a notice of  termination  under  Section 31(b) or Section 31(d) (as
applicable) the Party receiving any such notice shall have the right, within ten
(10) days after  receipt of such notice  (the  "Decision  Period"),  to initiate
arbitration  proceedings  to  determine  the  existence  of any such  default or
termination  right.  Such  arbitration  proceedings will be initiated with three
Qualified  Arbitrators,  with one  selected by each of Lessor and Lessee and the
third mutually selected by the Parties, each Party acting reasonably, and if the
Parties  cannot  agree the third  arbitrator  shall,  selected  by the two other
arbitrators.  The  arbitration  will be held in Chicago,  Illinois or such other
location as is mutually  agreeable  to the  Parties.  All  arbitrations  will be
governed  by  the  applicable  commercial  rules  of  the  American  Arbitration
Association  ("AAA") for accelerated  arbitration  proceedings.  The arbitrators
will  prepare  in  writing,  and  provide  to  the  Parties,  such  arbitrators'
determination,   including  factual  findings  and  the  reasons  on  which  the
determination  was based.  The decision of a majority of the arbitrators will be
final,  binding and  conclusive  and will not be subject to review or appeal and
may be enforced in any court having  jurisdiction  over the Parties.  During the
Decision  Period  and  thereafter,  if a Party  elects to  initiate  arbitration
proceeding  under this Section 31(h),  until the  conclusion of the  arbitration
proceedings and the rendering of the decision of the  arbitrators,  any right or
remedy  provided  under this  Agreement  to the Party  alleging  the  default or
termination  right may not be  exercised.  "Qualified  Arbitrator"  shall mean a
person  with at  least  ten  years  experience  in the  commercial  real  estate
business, including experience with cellular tower assets.

     (i) A Party's  pursuit of any one or more of the remedies  provided in this
Agreement will not constitute an election of remedies  excluding the election of
another  remedy or other


                                       66




remedies,  or a forfeiture or waiver of any amounts payable under this Agreement
as to the  applicable  Site by such  Party or waiver of any relief or damages or
other  sums  accruing  to such Party by reason of the other  Party's  failure to
fully and completely keep, observe,  perform, satisfy and comply with all of the
agreements,   terms,  covenants,   conditions,   requirements,   provisions  and
restrictions  of  this  Agreement.  Notwithstanding  anything  to  the  contrary
contained in this Agreement, neither Party will be liable to the other Party for
indirect,  incidental,  special  or  consequential  damages,  including  but not
limited to lost profits,  however  arising,  even if a Party has been advised of
the possibility of such damages.

     (j) Either Party's forbearance in pursuing or exercising one or more of its
remedies  will not be deemed or construed to constitute a waiver of any event of
default or of any  remedy.  No waiver by either  Party of any right or remedy on
one  occasion  will be  construed  as a waiver  of that  right or  remedy on any
subsequent  occasion  or as a  waiver  of any  other  right  or  remedy  then or
thereafter existing. No failure of either Party to pursue or exercise any of its
powers,  rights or remedies or to insist upon strict and exact compliance by the
other  Party  with  any  agreement,  term,  covenant,  condition,   requirement,
provision  or  restriction  of this  Agreement,  and no  custom or  practice  at
variance with the terms of this  Agreement,  will  constitute a waiver by either
Party of the right to demand  strict  and  exact  compliance  with the terms and
conditions  of  this  Agreement.   Except  as  otherwise  provide  herein,   any
termination of this Agreement  pursuant to Sections  31(b),  31(d) or 31(f),  or
partial  termination  of a Parties'  rights  hereunder,  shall not  terminate or
diminish any Parties'  rights with  respect to the  obligations  that were to be
performed on or before the date of such termination.

     SECTION 32. Quiet Enjoyment.

     Lessee  will,  subject  to the  terms  and  conditions  of this  Agreement,
peaceably  and quietly  hold and enjoy the Leased  Property of each Master Lease
Site and shall have the right  provided  herein to operate each  Pre-Lease  Site
during the Term thereof without hindrance or interruption from Lessor, any Party
comprising Sprint or any other Sprint Group Member.

     SECTION 33. No Merger.

     There will be no merger of this Agreement or any  subleasehold  interest or
estate created by this Agreement in any Site with any superior  estate held by a
Party by reason  of the fact  that the same  Person  may  acquire,  own or hold,
directly or indirectly, both the subleasehold interest or estate created by this
Agreement in any Site and such superior  estate;  and this Agreement will not be
terminated,  in whole or as to any Site,  except as  expressly  provided in this
Agreement.  Without  limiting  generality  of the  foregoing  provisions of this
Section  33,  there  will be no merger of the  subleasehold  interest  or estate
created by this Agreement in Lessee in any Site with any with any underlying fee
interest  that  Lessee may acquire in any Site that is superior or prior to such
subleasehold interest or estate created by this Agreement in Lessee.

     SECTION 34. Broker and Commission.

     (a) All  negotiations in connection with this Agreement have been conducted
by and between Lessor,  Lessee and Sprint without the intervention of any Person
or other party as agent or broker other than Banc of America  Securities LLC and
Citigroup  Global Markets Inc. (the


                                       67



"Financial Advisors"),  which are advising Sprint Parent in connection with this
Agreement and related transactions.

     (b) Each of Lessor,  Lessee and Sprint warrants and represents to the other
that there are no broker's  commissions or fees payable by it in connection with
this  Agreement  by  reason  of  its  respective   dealings,   negotiations   or
communications  other than the advisor's  fee payable to the Financial  Advisors
which will be payable by Sprint Parent.  Lessor,  Lessee and Sprint will, and do
hereby  indemnify,  defend and hold  harmless  each other from and  against  the
Claims of any and all  brokers,  agents  and  other  intermediaries  alleging  a
commission,  fee or other  payment  to be owing by  reason  of their  respective
dealings, negotiations or communications in connection with this Agreement.

     SECTION 35.  Recording  of  Memorandum  of  Agreement  or Site  Designation
Supplement.

     (a) Subject to the  applicable  provisions  of the  Agreement  to Lease and
Sublease,  for each Master Lease Site,  upon the execution of this  Agreement or
after any  Conversion  Closing,  Lessee  may, at its cost and  expense,  cause a
memorandum of agreement in the form attached  hereto as Exhibit C to be filed in
the  appropriate  County  property  records  (unless  the  Ground  Lease for any
applicable  Master Lease Site prohibits such recording) to provide  constructive
notice to third parties of existence of this Agreement. In addition, Lessee may,
at its  cost  and  expense,  promptly  following  the  execution  of  each  Site
Designation  Supplement,  cause such Site Designation Supplement with respect to
the applicable Master Lease Site to be filed in the appropriate  County property
records  unless  the  Ground  Lease  for  the  applicable  Site  prohibits  such
recording. The costs of recording the Site Designation Supplements shall be paid
as set forth in Section 3.8 of the Agreement to Lease and Sublease.

     (b) In addition to and not in  limitation  of any other  provision  of this
Agreement,  the Parties will have the right to review and make  corrections,  if
necessary,  to any and all exhibits to this Agreement or to the Site Designation
Supplements.  After making such  corrections,  Lessee will  re-record  such Site
Designation  Supplement to reflect such corrections,  if requested by any Party,
at the expense of the  requesting  Party.  The Parties will  cooperate with each
other to cause changes to be made in the Site  Designation  Supplement  for such
Site,  if such changes are  requested by either Party to evidence any  permitted
changes in the description of the Sprint Collocation Space respecting such Site,
including,  without  limitation changes in the Sprint  Collocator's  antennas or
other parts of its Communications Facility at such Site. In addition to, and not
in limitation of the  foregoing,  either Party will have the right,  at its sole
expense,  to cause any  amendment  to such  Site  Designation  Supplement  to be
recorded, including without limitation, in connection with such changes.

     SECTION 36. Purchase Option.

     (a)  Right to  Purchase.  If this  Agreement  will not  have  been  earlier
terminated,  or an event of  default  by Lessee  will not have  occurred  and be
continuing  at the date of option  exercise or the date fixed for  purchase  (as
such date is  specified  below),  Lessee  will have an  option,  exercisable  no
earlier than one (1) year and no later than one hundred  twenty (120) days prior
to the Purchase  Option Closing Date (the "Option  Trigger  Window") to elect to
purchase  the  right,


                                       68



title and interest of Lessor and any applicable Party  comprising  Sprint or any
other  Person  holding an  interest  therein by,  through or under  Sprint or by
acquisition   thereof  from  Sprint  from,  on  and  after  the  Effective  Date
(collectively,  the  "Option  Sellers")  in all (but not less  than  all) of the
Purchase Sites  (excluding,  in all cases,  Excluded  Purchase  Sites,  Sprint's
Improvements  and any  Tower  Subtenant's  Improvements  on such  Site(s))  then
subject  to  this  Agreement  for  the  net  aggregate   Option  Purchase  Price
attributable  to the  Purchase  Sites (and on the other terms and subject to the
conditions  specified  in this  Agreement).  Lessee may exercise  such  purchase
option by  submitting  to the Option  Sellers in writing an offer for all of the
Purchase  Sites within the Option  Trigger  Window.  The Option  Sellers will be
obligated  to sell,  and Lessee will be  obligated to buy, all such Master Lease
Sites at a closing to be  effective  as of the  Purchase  Option  Closing  Date.
Except as  provided in this  Section 36,  Lessee will have no right or option to
purchase any Sites subject to this Agreement. The Sprint Collocators acknowledge
on their own behalf and on behalf of all  Persons  acquiring  an interest in any
Site  (except  for a Sprint  Market  Assignee  who signs a separate  collocation
agreement  with Lessee) that their rights in and to the Sites are subject to the
provisions of this Section 36.

     (b)  Payment of the Option  Purchase  Price.  Lessee will pay to the Option
Sellers the net aggregate  Option  Purchase Price for the Purchase Sites in cash
or immediately  available  funds on or prior to the closing of such sale. At the
closing of such sale,  each of the Option  Sellers will  transfer or cause to be
transferred its applicable  Purchase Sites, at Lessee's  expense,  to Lessee and
the Term as to the Purchase  Sites will end. Risk of loss for the Purchase Sites
purchased  pursuant  to this  Section  36 will pass from the  Option  Sellers to
Lessee upon  payment of the  applicable  purchase  price by Lessee to the Option
Sellers.

     (c)  Transfer  by Lessor.  Any  transfer  of  Purchase  Sites by the Option
Sellers to Lessee pursuant to this Section 36 will include:

          (i) an assignment of each Option Seller's interest in any Ground Lease
     for such  Purchase Site (which shall contain an assumption by Lessee of all
     of the  obligations  of such Option  Seller  under such Ground Lease and an
     agreement by Lessee to indemnify  such Option  Seller and each other Sprint
     Indemnitee from claims,  losses or damages related to such obligations),  a
     transfer of fee simple title to the Land for any Purchase  Site which is an
     Owned Purchase Site, a transfer of each such Option Seller' interest in the
     applicable  Tower and related assets (other than Sprint's  Improvements  or
     Sprint's Communications Equipment) and all appurtenances thereto; provided,
     that for so long as the Ground Lease, as amended, modified, or extended, is
     still in effect for any Purchase Site,  each applicable  Sprint  Collocator
     will be  entitled  to lease  the  Sprint  Collocation  Space  on each  such
     Purchase Site from Lessee for successive five (5) year terms at rental rate
     equal to the  then-current  market rental rates for  comparable  locations;
     provided,  that the Sprint Collocation Charge will thereafter be subject to
     increase on an annual basis at the  beginning of each five (5) year term in
     an amount equal to the CPI Change;  provided, if Lessee and any such Sprint
     Collocator  fail to agree on a rental rate for one or more of the  Purchase
     Sites,  such rental rate will be determined  for each  applicable  Purchase
     Site  by a  nationally  recognized  independent  accounting  firm  mutually
     acceptable  to  such  Sprint  Collocator  and  Lessee.   The  cost  of  the
     determination  of the rental  rate will be shared  equally  by such  Sprint
     Collocator and Lessee. The applicable Sprint Collocator will have the right
     to elect to terminate  any such lease with respect to a Purchase Site as



                                       69



     of the  expiration  of each five (5) year term by giving no less than sixty
     (60) days prior written notice of such termination to Lessee;

          (ii) to the  extent  legally  transferable,  all  rights  of each such
     Option  Seller  under  or  pursuant  to  warranties,   representations  and
     guarantees  made by  suppliers or  manufacturers  in  connection  with such
     Purchase  Site,  but  excluding  any rights to receive  amounts  under such
     warranties,  representations and guarantees representing reimbursements for
     items paid by such Option Seller; and

          (iii) to the  extent  legally  transferable,  all  known  and  unknown
     rights, claims, credits, causes of action, or rights to commence any causes
     of action or rights of  setoff of each such  Option  Seller  against  third
     parties  relating  to such  Purchase  Site  arising on or after the date of
     transfer,  including  unliquidated rights under manufacturers' and vendors'
     warranties, but excluding all amounts representing reimbursements for items
     paid by such Option Seller.

     (d) Evidence of Transfer.  Each of the Option Sellers and Lessee will enter
into  assignments,  deeds (with  warranties of title as to such Option  Sellers'
actions  only),  bills of sale and such other  documents and  instruments as the
other may reasonably request to evidence any transfer of such Purchase Sites.

     (e)  Transfer  Taxes.  As provided in Section  16(d),  any  Transfer  Taxes
incurred in connection with the transfer of Purchase Sites by the Option Sellers
to Lessee pursuant to this Section 36 will be divided equally between Lessor and
Lessee.

     (f) No Warranties.  Any transfer of a Purchase Site by any Option Seller to
Lessee  pursuant to this  Agreement  will be "AS IS" and  without  any  warranty
whatsoever by such Option Seller, except that in any transfer of a Purchase Site
by any such  Option  Seller to Lessee  pursuant to this  Agreement,  such Option
Seller will warrant that the Option Seller has not previously  transferred title
to such  Purchase  Site that is so  transferred  and will convey the interest of
such Option Seller with limited  warranty stating that the Purchase Site is free
of Liens or other  matters  created or arising  by,  through or under the Option
Seller or any other Sprint Group Member from and after the Effective Date.

     SECTION 37. Net Lease.

     This Agreement, insofar as it relates to the lease or the use and operation
by Lessee of any Site or the  Leased  Property  on any Site is a net lease  and,
except as  otherwise  expressly  provided in Sections  14, 20, 31 and 41 of this
Agreement, will not terminate.  Neither Lessee nor any Sprint Collocator will be
entitled to any abatement, reduction, setoff, counterclaim, defense or deduction
with respect to any Rent,  Pre-Lease Rent,  Sprint  Collocation  Charge,  amount
payable under Section 11(h) or other sum payable under this Agreement. Except as
otherwise  expressly  provided in Sections 14, 20, 31 and 41 of this  Agreement,
the  obligation of Lessee and each Sprint  Collocator  under this Agreement will
not be  affected by reason of: (a) any damage to or  destruction  of any Site or
any part of such Site by any cause whatsoever; (b) any condemnation of any Site;
(c) any  prohibition,  limitation,  restriction or prevention of Lessee's use or
enjoyment of a Site by any Person; (d) any matter affecting title to any Site or
any part of


                                       70




such Site;  (e) any loss of use or possession by Lessee of a Site or any portion
of such Site, by reason of title  paramount or otherwise;  (f) the invalidity or
unenforceability  of any  provision of this  Agreement or the  impossibility  or
illegality  of  performance  by Lessor or Lessee or both;  (g) any action of any
Governmental Authority; or (h) any other cause or occurrence whatsoever, whether
similar or dissimilar to the foregoing.

     SECTION 38. Compliance with Specific FCC Regulations.

     (a) Lessee  understands and acknowledges  that Tower Subtenants are engaged
in the  business  of  operating  Communications  Equipment  at  each  Site.  The
Communications  Equipment is subject to the  regulations  of the FCC,  including
without limitation  regulations regarding exposure by workers and members of the
public to the radio  frequency  emissions  generated by Sprint's  Communications
Equipment.  Lessee acknowledges that such regulations  prescribe the permissible
exposure  levels  to  emissions  from the  Communications  Equipment  which  can
generally  be  met  by  maintaining  safe  distances  from  such  Communications
Equipment.  To the  extent  Lessee is  required  to do so under  applicable  FCC
regulations,  Lessee will install,  or cause the Tower Subtenants to install, at
its or their expense,  such marking,  signage or barriers to restrict  access to
any Site as Lessee deems  necessary in order to comply with the  applicable  FCC
regulations,  with  respect to  Communications  Equipment  other  than  Sprint's
Communications Equipment, and with respect to Sprint's Communications Equipment,
the  applicable  Sprint  Collocator  will install  same. To the extent Lessee is
required to do so under  applicable  FCC  regulations,  Lessee further agrees to
post, or to cause the Tower Subtenants to post,  prominent signage at all points
of  entry to each  Site  containing  instructions  as to any  potential  risk of
exposure and methods for minimizing  such risk,  with respect to  Communications
Equipment  other than  Sprint's  Communications  Equipment,  and with respect to
Sprint's Communications  Equipment the applicable Sprint Collocator will install
same.  Lessee  will  cooperate  in good faith  with each  Sprint  Collocator  to
minimize any confusion or unnecessary  duplication  that could result in similar
signage being posted with respect to any of Sprint's Communications Equipment at
or near any Site in respect of any Sprint Collocation Space on such Site.

     (b) Lessee  further  agrees to alert all personnel  working at or near each
Site,  including Lessee's maintenance and inspection  personnel,  to heed all of
Lessee's or Tower Subtenant's signage or restrictions with respect to such Site,
to maintain the prescribed  distance from the Communications  Equipment,  and to
otherwise  follow the posted  instructions.  Lessee  further agrees to give each
Tower  Subtenant at least ten (10) days' advance written notice of any repair or
maintenance  work to be performed on any Site which would require work in closer
proximity to the  Communications  Equipment  than  prescribed  by the signage or
restrictions, to abide by any provisions in the Collocation Agreement related to
such work and allow  such  work to be  monitored  by such  Tower  Subtenant,  if
required by such Tower Subtenant.

     (c)  Lessor  and  Sprint   cooperate   with  each  Tower   Subtenant  on  a
going-forward  basis with respect to each Site in order to help insure that such
Tower Subtenant complies with the applicable FCC regulations.

     (d)  Each  Sprint   Collocator   acknowledges   and  agrees  that  Sprint's
Communications  Equipment at each Site is subject to the regulations of the FCC,
including,  without  limitation,


                                       71



regulations regarding exposure by workers and members of the public to the radio
frequency  emissions generated by Sprint's  Communications  Equipment and Sprint
agrees to comply with all FCC  Regulations and all other  Applicable  Laws. Each
Sprint Collocator  acknowledges that such regulations  prescribe the permissible
exposure  levels  to  emissions  from its  Communications  Equipment  which  can
generally  be  met  by  maintaining  safe  distances  from  such  Communications
Equipment.  Each Sprint  Collocator  will install at its expense  such  marking,
signage,  or  barriers  to  restrict  access to any of  Sprint's  Communications
Equipment on a Site in respect of any Sprint  Collocation  Space on such Site as
such Sprint  Collocator  deems  necessary in order to comply with the applicable
FCC regulations. Each Sprint Collocator will cooperate in good faith with Lessee
to minimize  any  confusion  or  unnecessary  duplication  that could  result in
similar  signage  being  posted with  respect to any of Sprint's  Communications
Equipment at or near any Site in respect of any Sprint Collocation Space on such
Site.  Each Sprint  Collocator,  at its option,  may also install signage at any
Site identifying Sprint's  Communication Facility at such Site and providing for
contact information in the case of emergency.

     (e) Each Sprint Collocator further agrees to alert all personnel working at
or near each Site, including such Sprint Collocator's maintenance and inspection
personnel,   to  maintain  the  prescribed   distance  from  the  Communications
Equipment, and to otherwise follow the posted instructions of Lessee.

     SECTION 39. Tax Indemnities.

     (a) Income Tax Indemnity.

     (1) Tax Assumptions. In entering into this Agreement and related documents,
the   Sprint   Group  has  made  the   following   assumptions   regarding   the
characterization  of the  transactions  contemplated  under this  Agreement  for
federal income tax purposes (the "Tax Assumptions"):

          (i) for federal income tax purposes, this Agreement will be treated as
     a "true lease" with respect to all of the Leased  Property,  the members of
     the Sprint  Group will be treated,  directly or  indirectly  through one or
     more entities that are classified as partnerships  or disregarded  entities
     for federal income tax purposes, as the owners and sublessors of the Leased
     Property, and Lessee will be treated (or, if Lessee is a disregarded entity
     for federal income tax purposes,  the entity treated as the owner of Lessee
     for federal income tax purposes) as the lessee of the Leased Property;

          (ii) following the execution of this Agreement,  the Sprint Group will
     be entitled to deduct, pursuant to Section 168(b) of the Code, depreciation
     deductions  with  respect to the Sprint  Group's  adjusted tax basis in the
     Leased  Property  using  the  same  depreciation  method(s)  as  in  effect
     immediately before the execution of this Agreement  ("Federal  Depreciation
     Deductions");

          (iii) prepaid Rent and  Pre-Lease  Rent with respect to each Site will
     be paid under a single lease subject to Section 467 of the Code and will be
     characterized  in part as a loan under section 467 of the Code and Treasury
     Regulations issued under such


                                       72



     section  and  the  Sprint  Group  will  be  entitled  to  deduct   interest
     attributable thereto with respect to each Site as set forth in Exhibit H;

          (iv) the only amounts that any Sprint Group Member will be required to
     include in gross income with respect to the  transactions  contemplated  by
     this Agreement and related documents will be (A) Rent and Pre-Lease Rent as
     it accrues as rent in accordance  with the terms of this  Agreement and the
     application  of Section  467 of the Code and  Treasury  Regulations  issued
     under such section and as set forth in Exhibit H with respect to each Site;
     (B) any indemnity (including any gross up) pursuant to this Agreement;  (C)
     any amounts paid or otherwise  recognized  pursuant to a voluntary  sale or
     other  disposition  by any  Sprint  Group  Member  (other  than  a sale  or
     disposition  attributable  to a default by Lessee  and/or the  exercise  of
     remedies by Lessor or Sprint or its Affiliates under this Agreement) of any
     Leased  Property,  it being  understood  for these  purposes that a sale or
     disposition  that may be deemed to have occurred on the  Effective  Date is
     not a sale;  (D) proceeds  upon  Lessee's  exercise of the purchase  option
     pursuant  to Section 36 of this  Agreement;  (E) any costs and  expenses of
     Lessor or Sprint (and any interest  thereon)  paid or  reimbursed by Lessee
     pursuant to this  Agreement;  (F) income  attributable  to the reversion of
     Alterations  made by Lessee to Lessor at the end of the Term;  (G)  amounts
     expressly  identified as interest in the Agreement and payable to Lessor or
     any Sprint  Group  Member;  (H) any other amount to the extent such item of
     income results in an equal and offsetting deduction;  and (I) any income or
     gain  from an  acceleration  of Rent or  Pre-Lease  Rent as a result of the
     expiration or  termination  of a ground lease with respect to a Site listed
     in  paragraphs 9 through 15 of Section 4.5 of the  Contributors  Disclosure
     Letter (as defined in the Agreement to Lease and Sublease); and

          (v) the  combined  effective  federal  and net state  income  Tax rate
     applicable  to each Sprint Group Member will be  thirty-nine  percent (39%)
     (the  "Assumed  Rate"),  comprised  of  thirty-five  percent  (35%) for the
     assumed  federal rate and four percent (4%) (which is net of federal income
     Tax benefits) for the assumed state rate.

     (2) Lessee's  Representations  and Covenants.  Lessee hereby represents and
covenants to each Sprint Group Member as follows:

          (i) Lessee,  any  Affiliate  of Lessee,  any  assignee or sublessee of
     Lessee, and any user (other than Lessor or Sprint or its Affiliates) of any
     portion of the Leased  Property will not claim  depreciation  deductions as
     the owner of any of the Leased  Property  for federal  income Tax  purposes
     during the Term (and  thereafter  unless  Lessee  purchases  such  property
     pursuant to Section 36 of this Agreement),  with respect to such
     Leased Property or portion of such Leased Property,  except with respect to
     Alterations financed by Lessee or such assignee,  sublessee, or other user,
     nor will they take any other action in connection  with filing a Tax return
     or  otherwise  which would be  inconsistent  with (i) the  treatment of the
     Sprint  Group  Members as the direct or indirect  owners and lessors of the
     Leased Property for federal income tax purposes,  (ii) the Tax Assumptions,
     or (iii) Section 11 and Exhibit H of this Agreement.

          (ii) none of the  Leased  Property  will  constitute  "tax-exempt  use
     property"  as defined in Section  168(h) of the Code other than solely as a
     result of use by Lessor,


                                       73



     Sprint or its Affiliates and any other Person that is a Tower  Subtenant as
     of the date of the Agreement to Lease and Sublease;

          (iii) on the  Effective  Date,  no  Alterations  to any of the  Leased
     Property  will be  required  in order to render any of the Leased  Property
     complete  for its  intended use by Lessee  except for  ancillary  Severable
     Alterations  that are  customarily  selected  and  furnished  by lessees of
     property similar in nature to the Leased Property;

          (iv) Lessee has no current plan or intention of making any  Alteration
     or repair  with  respect  to any of the Leased  Property  that would not be
     treated as severable  improvements or permitted  nonseverable  improvements
     within the meaning of Revenue Procedure 2001-28, 2001-1 C.B. 1156;

          (v) Lessee has no current plan or  intention of making any  Alteration
     or repair with respect to any of the Leased  Property the value of which as
     of the end of the Term with  respect to such Leased  Property  would compel
     Lessee to exercise any of the  purchase  options  under  Section 36 of this
     Agreement; and

          (vi) Lessee is not  obligated to exercise any of the purchase  options
     provided in Section 36 of this  Agreement,  it has not  decided  whether it
     will  exercise any of the purchase  options  provided in Section 36 of this
     Agreement, and it has no plans to enter into or incur such obligation or to
     make such decision in the immediate future.

          (3) Indemnity for Tax Losses.

          (i) If, as a result of

               (A) the inaccuracy of any representation of Lessee, or the breach
          of any  covenant  of  Lessee,  set forth in Section  39(a)(2)  of this
          Agreement;

               (B) any act of Lessee,  or any assignee or sublessee of Lessee or
          any user of the Leased  Property  (other  than Lessor or Sprint or its
          Affiliates)  during the Term, other than (i) the execution or delivery
          of the  Transaction  Documents  and (ii) any act  required  under  the
          Transaction Documents or any Permitted Act;

               (C) the failure by Lessee to perform any act required of it under
          any of the Transaction Documents;

               (D) any disposition of Leased Property  attributable to a default
          by Lessee and/or the exercise of remedies under this Agreement; or

               (E) the bankruptcy of Lessee.


                                       74



any Sprint Group Member (each a "Tax Indemnitee") will not claim on the relevant
income tax return  based upon a written  opinion  from  independent  tax counsel
reasonably  acceptable to Lessee  (setting forth in reasonable  detail the facts
and analysis upon which such opinion is based) that there is no reasonable basis
as defined in Treas. Reg.  ss.1.6662-3(b)(3)  as in effect on the Effective Date
for claiming all or any portion of the Federal  Income Tax  Benefits,  will lose
the right to claim all or any portion of the Federal  Income Tax Benefits,  will
suffer a loss of,  disallowance  of, or delay in obtaining all or any portion of
the Federal  Income Tax  Benefits,  or will be required to recapture  all or any
portion of the Federal Income Tax Benefits, or any Tax Indemnitee will suffer an
Inclusion  (any such event being  referred  to as a "Tax  Loss"),  then,  within
thirty (30) days after receipt of a written  demand from or on behalf of the Tax
Indemnitee  describing in reasonable  detail the Tax Loss and the computation of
the  amount  payable (a "Tax  Indemnity  Notice"),  Lessee  will pay to such Tax
Indemnitee  as an indemnity the amount  specified in the Tax  Indemnity  Notice.
Subject  to  other  adjustments  required  by  this  Section  39(a)(3)(i),  such
indemnity payment will be calculated in the Tax Indemnity Notice to equal, on an
After-Tax Basis, the sum of (y) the amounts of any additional  federal and state
income taxes payable by such Tax Indemnitee for the taxable year  (calculated at
the  Assumed  Rate in the  case of a Tax  Loss  respecting  Federal  Income  Tax
Benefits and  calculated at the highest  marginal  applicable  federal and state
rates then in effect in the case of a Tax Loss  respecting an Inclusion) and any
interest  thereon  (calculated to the date such payment is made using the actual
interest rates for  underpayments  of tax  applicable to the relevant  periods),
plus (z) the amount of any penalties and additions to tax actually  payable as a
result of such Tax Loss and attributable  thereto. The indemnity payment will be
a net lump-sum amount,  taking into account all past and anticipated  future Tax
Losses and Tax savings at the Assumed  Rate,  and using a discount rate equal to
the  Applicable  Federal  Rate (as defined in Code  Section  1274(d)(1)  then in
effect) to present  value  future Tax  Losses  and Tax  savings.  Any  indemnity
payment made pursuant to this Section  39(a)(3)(i) will be made on an "After-Tax
Basis" which means that any such payment will also include a "gross-up"  for any
federal or state income Taxes  (determined  at the highest  marginal  applicable
federal  and state  rates then in effect)  payable by such Tax  Indemnitee  with
respect to the  receipt or accrual of such  indemnity  payment,  including  such
gross-up. Notwithstanding any other provision of this Section 39(a)(3)(i) to the
contrary,  Lessee will not be required  to make any payment  under this  Section
39(a)(3)(i)  earlier  than,  (a) in the  case of a Tax  Loss  that is not  being
contested  pursuant  to  Section  39(d) of this  Agreement,  the  date  such Tax
Indemnitee  (or the  common  parent of the  consolidated  group in which it is a
member,  as the case may be) files the  applicable  federal  income Tax  return,
estimated  or final as the case may be, which would first  properly  reflect the
additional  federal income Tax that would be due as a result of the Tax Loss and
(b) in the case of a Tax Loss that is being contested  pursuant to Section 39(d)
of  this  Agreement,   thirty  (30)  days  after  the  date  on  which  a  Final
Determination is made (or as otherwise provided in Section 39(d)) and (c) twenty
(20) days after the receipt by Lessee of the Tax Indemnity Notice.

          (ii) Verification of Calculations.  Lessee may timely request that any
     Tax  Indemnity  Notice be verified by a nationally  recognized  independent
     accounting  firm or a lease advisory firm selected by Lessee and reasonably
     acceptable to such Tax Indemnitee.  Such  verification  will be at Lessee's
     expense unless such  accounting  firm determines that the amount payable by
     Lessee  is more than ten  percent  less  than the  amount  shown on the Tax
     Indemnity Notice, in which event the Tax Indemnitee will pay such costs. In
     order to enable such  independent  accountants to verify such amounts,  the
     Tax  Indemnitee  will



                                       75



     provide to such independent accountants (for their confidential use and not
     to be disclosed to Lessee or any other person) all  information  reasonably
     necessary for such verification.

     (4) Exceptions.  Notwithstanding any provision of this Section 39(a) to the
contrary,  Lessee will not be required to make any payment to any Tax Indemnitee
in  respect  of any Tax Loss to the  extent  that any such Tax Loss  occurs as a
result of one or more of the following:

          (i) other than as a result of an Alteration by Lessee,  the entry into
     a New Lease under  Section 40 of this  Agreement  or any  severance of this
     Agreement under Section 41, the determination  that this Agreement is not a
     "true  lease" for  federal  income tax  purposes or that the members of the
     Sprint Group,  directly or indirectly through one or more entities that are
     classified as partnerships  or disregarded  entities for federal income tax
     purposes,  are not the owners or sublessors of the Leased Property, or that
     Section 467 of the Code does not apply to this Agreement in accordance with
     its terms;

          (ii) the voluntary sale, assignment, transfer, or other disposition or
     the  involuntary   sale,   assignment,   transfer,   or  other  disposition
     attributable to the bankruptcy, insolvency or the breach of any covenant or
     obligation of the Tax Indemnitee set forth in the Transaction  Documents of
     or by any such Tax Indemnitee or any of its Affiliates,  in either case, of
     any of the Leased  Property or portion of such Leased  Property by any such
     Tax  Indemnitee  or any of its  Affiliates  other than a sale,  assignment,
     transfer, or disposition (A) contemplated by the Transaction Documents; (B)
     otherwise  resulting  from the  exercise by any Sprint  Group Member of its
     rights or performance of its obligations  under the Transaction  Documents;
     or (C)  attributable  to a default by Lessee  and/or  exercise  of remedies
     under this Agreement;

          (iii)  the  gross  negligence  or  willful   misconduct  of  such  Tax
     Indemnitee;

          (iv) penalties, interest, or additions to Tax to the extent based upon
     issues  unrelated to the  transactions  contemplated  by this Agreement and
     related documents;

          (v) Lessee's exercise of the purchase option provided in Section 36 of
     this Agreement;

          (vi) the failure by the Sprint Group or any Sprint Group Member timely
     or properly to claim any Federal  Income Tax Benefits or to exclude  income
     on the  appropriate  Tax  return  other  than in  accordance  with  Section
     39(a)(3) of this Agreement;

          (vii) any failure of the Tax Indemnitee to have taken all the actions,
     if any,  required of it by Section  39(d) of this  Agreement to contest the
     Loss and such failure  materially  prejudices  the ability to contest,  and
     Lessee  has a  reasonable  basis  for such  contest  (other  than a failure
     attributable  in whole or part to the  failure  of  Lessee  to  follow  the
     procedures set forth in Section 39(d) of this Agreement);

          (viii) any change in Law enacted,  adopted or  promulgated on or after
     the date of the  Agreement  to  Lease  and  Sublease,  provided  that  this
     exclusion shall not apply


                                       76



     to any (1) change in tax rates  applicable  to the making of any  indemnity
     payment for a Tax Loss (a)  respecting  Federal  Income Tax  Benefits on an
     After-Tax  basis or (b)  respecting  an  Inclusion or (2)  substitution  or
     replacement of any Leased Property after a change in Law;

          (ix) the  failure of the Sprint  Group,  or any  single  Sprint  Group
     Member,  to have  sufficient  income or Tax  liability  to benefit from the
     Federal Income Tax Benefits;

          (x) the  inclusion  of income by a Sprint  Group Member as a result of
     the  reversion  of  Alterations  made by Lessee to Lessor at the end of the
     Term;

          (xi) a determination that Sprint is not holding the Leased Property in
     the  ordinary  course of a trade or  business  or that Sprint did not enter
     into the transactions contemplated by the Transaction Documents for profit;

          (xii) the existence of, or any  consequence  of, the prepayment of the
     Rent,  or the  application  of  Section  467 of the  Code  or the  Treasury
     regulations  promulgated  thereunder,  provided  that the Lessee  makes all
     payments  when due and accrues all rental  expense in  accordance  with the
     Allocated  Rent as set forth in Exhibit H and  provided  further  that this
     exclusion  will not apply to the entry into a New Lease under Section 40 of
     this Agreement or any severance of this Agreement under Section 41;

          (xiii) any tax election by a Sprint Group Member that is  inconsistent
     with the Tax  Assumptions  to the  extent of a  resulting  increase  in the
     Lessee's indemnity obligations hereunder;

          (xiv) a Tax Loss with respect to any period  occurring  after (and not
     simultaneously  with) (1) the expiration or earlier termination of the Term
     with  respect to a Site or (2) the return to Sprint of the Leased  Property
     related to a Site, in either case other than interest, fines, penalties and
     additions to tax resulting from a Tax Loss that would not be excluded under
     this clause (xvi);

          (xv) the  breach or  inaccuracy  of any  representation,  warranty  or
     covenant by any Sprint  Group  Member in any of the  Transaction  Documents
     (except to the extent such breach or  inaccuracy  is attributed to a breach
     or inaccuracy of any  representation,  warranty or covenant of Lessee or an
     Affiliate under the Transaction Documents).

          (b) General Tax Indemnity.

     (1) Lessee agrees to pay and to indemnify,  protect, defend, save, and keep
harmless  each Sprint Group Member on an After-Tax  Basis,  from and against any
and all  Taxes  upon or with  respect  to (A) any of the  Leased  Property,  any
portion of such Leased  Property,  or any interest  therein (B) the acquisition,
purchase, sale, financing, leasing, subleasing,  ownership, maintenance, repair,
redelivery, alteration, insuring, control, use, operation, delivery, possession,
repossession,   location,  storage,  refinancing,  refund,  transfer  of  title,
registration,   reregistration,  transfer  of  registration,  return,  or  other
disposition  of  any of the  Leased  Property  or any  portion  of  such  Leased
Property,  or  interest  in  such  Leased  Property,  (C) the  rental  payments,
receipts,  or earnings  arising  from the Leased  Property,  any portion of such
Leased Property, or any interest


                                       77



in such Leased  Property,  or payable  pursuant to this Agreement,  or any other
payment or right to receive payment pursuant to any related document, or (D) any
Alteration,  removal, substitution,  maintenance, or repair of any of the Leased
Property

     (2) Exclusions from General Tax Indemnity. The provisions of Section 16 and
Section 39(b)(1) will not apply to, and Lessee will have no responsibility under
Section 16 and no liability under Section 39(b)(1) with respect to:

          (i) Taxes on any Sprint Group  Member  (other than such Taxes that are
     sales,  use,  rental,  property,  stamp,  document filing,  license,  or ad
     valorem Taxes, or value added Taxes that are in the nature of or in lieu of
     such Taxes) imposed on any such member that are franchise Taxes,  privilege
     Taxes,  doing business Taxes, or Taxes imposed on, based on or measured by,
     gross or net  income,  receipts,  capital,  or net worth of any such member
     which are imposed by any state, local, or other taxing authority within the
     United States or by any foreign or international taxing authority;

          (ii) Taxes  imposed by any  jurisdiction  on any Sprint  Group  Member
     solely as a result of its activities in such jurisdiction  unrelated to the
     transactions contemplated by this Agreement and related documents;

          (iii)  Taxes on any  Sprint  Group  Member  that  would  not have been
     imposed  but for the willful  misconduct  or gross  negligence  of any such
     member or an  Affiliate of any Sprint  Group  Member or the  inaccuracy  or
     breach of any representation,  warranty, or covenant of such Tax Indemnitee
     or any of its Affiliates  under the  Transaction  Documents  (except to the
     extent such  inaccuracy  or breach is attributed to an inaccuracy or breach
     of any representation, warranty or covenant of Lessee or an Affiliate under
     the Transaction Documents);

          (iv)  Taxes  which are  attributable  to any  period  or  circumstance
     occurring  after the  expiration  or earlier  termination  of the Term with
     respect to a Site,  except to the extent  attributable  to (I) a failure of
     Lessee  or any of its  transferees  or  sublessees  or users of the  Leased
     Property (other than Lessor or Sprint or its Affiliates) to fully discharge
     its  obligations  under this  Agreement and related  documents,  (II) Taxes
     imposed  on or  with  respect  to any  payments  that  are  due  after  the
     expiration  or earlier  termination  of the Term with respect to a Site and
     which are  attributable to a period or  circumstance  occurring prior to or
     simultaneously with such expiration or earlier termination, (III) the entry
     into a New Lease under Section 40 of this Agreement;  or (IV) any severance
     of this Agreement under Section 41;

          (v) any Tax that is being  contested in accordance with the provisions
     of Section 39(d) during the pendency of such contest,  but only for so long
     as such contest is continuing in accordance  with Section 39(d) and payment
     is not otherwise required pursuant to Section 39(d);

          (vi)  Taxes  imposed  on a Tax  Indemnitee  that  would  not have been
     imposed but for any act of such Tax Indemnitee  (or any Affiliate  thereof)
     that is  expressly


                                       78



     prohibited,  or omission of an act that is expressly required,  as the case
     may be, by any Transaction Document;

          (vii)  Taxes that would not have been  imposed  but for any  voluntary
     sale, assignment,  transfer,  pledge, or other disposition or hypothecation
     or  the  involuntary  sale,  assignment,  transfer,  or  other  disposition
     attributable to the bankruptcy, insolvency or the breach of any covenant or
     obligation of the Tax Indemnitee set forth in the Transaction  Documents of
     or by any  such  Tax  Indemnitee,  in  either  case,  of any of the  Leased
     Property  or portion of such  Leased  Property  by any such Tax  Indemnitee
     other than a sale, assignment, transfer, or disposition (A) contemplated by
     the Transaction Documents, (B) otherwise resulting from the exercise by any
     Sprint Group Member of its rights or performance of its  obligations  under
     the Transaction Documents or (C) attributable to a default by Lessee and/or
     exercise of remedies under this Agreement;

          (viii)  Taxes  imposed  on a Tax  Indemnitee  that would not have been
     imposed  but for such  Tax  Indemnitee's  (or  Affiliate's)  breach  of its
     contest obligations under Section 39(d) (but only to the extent such breach
     materially prejudices the Lessee's ability to contest such Taxes or results
     in an  increase  in  the  amount  of  Lessee's  indemnification  obligation
     hereunder);

          (ix) Taxes  imposed  on a Tax  Indemnitee  in the nature of  interest,
     penalties,  fines and  additions  to Tax to the extent  based  upon  issues
     unrelated to the transactions contemplated by the Transaction Documents;

          (x) Taxes  imposed on any Sprint Group  Member that are United  States
     federal, state or local net income Taxes of any such member;

          (xi) Taxes imposed in connection with or as a result of the leasing or
     use of the  Sprint  Collocation  Space by Sprint or its  Affiliates  or the
     payment or accrual of the Sprint Collocation Charge; or

          (xii)  Taxes to the  extent  that they are not the  responsibility  of
     Lessee as described in Section 16(a) without regard to this subsection.

The  provisions of this Section  39(b)(2) will not apply to any Taxes imposed in
respect of the receipt or accrual of any payment  made by Lessee on an After-Tax
Basis.

     (3) Reports. If any report, return, certification, or statement is required
to be filed with respect to any Tax that is the  responsibility  of Lessee under
Section 16 or is subject to  indemnification  under this Section  39(b),  Lessee
will timely prepare and file the same to the extent permitted by law (except for
(i) any report,  return, or statement  relating to any net income Taxes or, (ii)
any  report,  return,  or  statement  relating to any other Taxes not subject to
indemnity  under  Section  39(b)(2)(i)  or any  Taxes in lieu of or  enacted  in
substitution for any of the foregoing,  except that, in such cases,  Lessee will
timely provide information necessary to file such report,  return, or statement,
(iii) any report,  return,  or statement  relating to Property taxes or (iv) any
other report, return, certification,  or statement which any Sprint Group Member
has  notified  Lessee that such member  intends to prepare and file);  provided,
that any Sprint Group Member will have furnished  Lessee,  at Lessee's  expense,
with such information  reasonably


                                       79




necessary to prepare and file such returns as is within such  member's  control.
Lessee will either file such report,  return,  certification,  or statement  and
send a copy of such report, return,  certification,  or statement to the member,
or, where not so permitted to file,  will notify the member of such  requirement
within a  reasonable  period of time prior to the due date for  filing  (without
regard to any  applicable  extensions)  and  prepare and  deliver  such  report,
return,  certification,  or  statement  to the  member.  In  addition,  within a
reasonable  time  prior to the  time  such  report,  return,  certification,  or
statement is to be filed, Lessee will, to the extent permitted by law, cause all
billings of such Taxes to be made to each Sprint Group Member in care of Lessee,
make such payment,  and furnish  written  evidence of such payment.  Lessee will
furnish  promptly upon written  request such data,  records and documents as any
Sprint  Group Member may  reasonably  require of Lessee to enable such member to
comply with requirements of any taxing jurisdiction arising out of such member's
participation  in the  transactions  contemplated  by this Agreement and related
documents.

     (4)  Payments.  With the  exception  of Property  Taxes,  any Tax for which
Lessee is responsible under Section 16 or any tax indemnified under this Section
39(b)  will  be  paid by  Lessee  directly  when  due to the  applicable  taxing
authority  if  direct  payment  is  permitted,  or  will  be  reimbursed  to the
appropriate  Sprint Group Member on demand if paid by such member in  accordance
herewith. Property Taxes will be paid in accordance with Sections 16(b) and (c).
Except as  explicitly  provided in Section 16 or as  otherwise  provided in this
Section 39(b),  all amounts payable to a Sprint Group Member under Section 16 or
this Section 39 will be paid promptly in immediately  available funds, but in no
event later than the later of (i) ten (10)  business days after the date of such
demand  or (ii) two (2)  Business  Days  before  the date the Tax to which  such
amount  payable  relates  is due or is to be paid and will be  accompanied  by a
written statement describing in reasonable detail the Tax and the computation of
the amount payable. Such written statement will, at Lessee's request, as long as
payment is not  delayed,  be verified  by a  nationally  recognized  independent
accounting firm selected by such member.  Such  verification will be at Lessee's
expense unless the accounting  firm determines that the amount payable by Lessee
is more than ten percent less than the amount  shown on such written  statement,
in which event,  the applicable  Sprint Group Member will pay such costs. In the
case of a Tax  subject to  indemnification  under this  Section  39(b)  which is
properly subject to a contest in accordance with Section 39(d),  Lessee (i) will
be  obligated to make any  advances  with respect to such Tax whenever  required
under Section 39(d) and (ii) will pay such Tax (in the amount finally determined
to be owing in such  contest)  on an  After-Tax  Basis  prior to the latest time
permitted by the relevant  taxing  authority  for timely  payment  after a final
determination.

     (c) Tax Savings.  If, by reason of any payment  made, or events giving rise
to such payment,  to or for the account of any Tax Indemnitee by Lessee pursuant
to Section 39(a) or 39(b),  such Tax Indemnitee at any time realizes a reduction
in any Taxes or receives a refund which was not taken into account previously in
computing  such  payment by Lessee to or for the account of the Tax  Indemnitee,
then the Tax  Indemnitee  will pay to  Lessee  an  amount  equal to such  actual
reduction in Taxes or such refund (including interest received), plus the amount
of any additional  reduction in Taxes of the Tax Indemnitee  attributable to the
payment  made  by the Tax  Indemnitee  to  Lessee  pursuant  to  this  sentence;
provided,  however,  that (A) the Tax  Indemnitee  will not be obligated to make
such  payment  with  respect to any net Tax savings or refund to the extent that
the amount of such payment  would  exceed the excess of (x) all prior  indemnity
payments  (excluding costs and expenses  incurred with respect to contests) made
by


                                       80



Lessee  over (y) the  amount  of all prior  payments  by the Tax  Indemnitee  to
Lessee; provided, that any such excess tax savings realized (or deemed realized)
by such  Tax  Indemnitee  which  are not  paid to  Lessee  as a  result  of this
subclause (A) will be carried  forward and reduce  Lessee's  obligations to make
subsequent  payments  to such Tax  Indemnitee  pursuant  to  Section  39 of this
Agreement;  and (B) if any such Tax  savings or refund  realized by such the Tax
Indemnitee,  or any tax savings  taken into account for purposes of  determining
"After-Tax Basis" will be lost or otherwise  determined to be unavailable,  such
lost or otherwise unavailable Tax savings or refund will be treated as a Tax for
which Lessee must  indemnify  the Tax  Indemnitee  pursuant to Section  39(a) or
39(b), as the case may be (without regard to the exceptions in Section  39(a)(4)
and  Section   39(b)(2)   other  than   Section   39(a)(4)(iii),   39(a)(4)(iv),
39(b)(2)(iii)  and  39(b)(2)(ix)).  For purposes of this Section 39(c), each Tax
Indemnity  is  assumed to be taxable at the  Assumed  Rate and an  Inclusion  is
assumed to be taxable at the actual rate.

     (d)  Contest  Rights.  In the event that any Tax  Indemnitee  receives  any
written notice of any potential  claim or proposed  adjustment  against such Tax
Indemnitee  that would result in a Tax Loss or a Tax against which Lessee may be
required to indemnify  pursuant to Section 39(a) or 39(b) (a "Tax Claim"),  such
Tax Indemnitee  will promptly notify Lessee of the claim and provide Lessee with
information  relevant  to such  claim;  provided,  that the  failure  by the Tax
Indemnitee to provide any such  information  will not be treated as a failure to
comply with this Section  39(d)  unless the failure  materially  prejudices  the
conduct of such contest.  With respect to Taxes indemnified under Section 39(b),
Lessee  will  control the contest at  Lessee's  expense.  With  respect to Taxes
indemnified  under Section 39(a), the Tax Indemnitee will control the contest at
Lessee's  expense but will  consult  with  Lessee in good faith,  but Lessee may
require the Tax Indemnitee to contest such Tax Claim at Lessee's expense and, in
that event,  the Tax Indemnitee will consult with Lessee in good faith,  but the
Tax  Indemnitee  will  retain  ultimate  control  over  such  contest.  The  Tax
Indemnitee will not be obligated to contest any Tax Claim unless (i) in the case
of a contest with  respect to federal  income  Taxes,  prior to taking the first
such  required  action,  Lessee will have  furnished  to the Tax  Indemnitee  an
opinion of a nationally recognized, independent tax counsel chosen by Lessee and
reasonably  acceptable  to the Tax  Indemnitee  to the  effect  that  there is a
reasonable basis as defined in Treas.  Reg.  ss.1.6662-3(b)(3)  as in effect (on
the Effective  Date) for the position to be asserted in contesting the matter in
question,  (ii) no event of default by Lessee  under  this  Agreement  will have
occurred and be continuing,  (iii) such contest does not involve a material risk
to the Tax  Indemnitee of sale,  forfeiture,  or loss of, or the creation of any
lien on, any of the Leased Property or the imposition of criminal  penalties and
(iv) if Lessee reasonably  requests,  and the Tax Indemnitee elects to pursue, a
contest that requires payment of the Tax as a condition to pursuing the contest,
Lessee  will  loan,  on an  interest-free  basis,  sufficient  funds  to the Tax
Indemnitee  to pay the Tax and any  interest  or  penalties  due on the  date of
payment,  and will  fully  indemnify  the Tax  Indemnitee  for any  adverse  Tax
consequences  resulting  from such advance.  The Tax  Indemnitee  will not make,
accept, or enter into a settlement or other compromise with respect to any Taxes
indemnified pursuant to Section 39(a) or forego or terminate any such proceeding
with respect to Taxes  indemnified  pursuant to this Section 39(b),  without the
prior  written  consent  of  Lessee,  which  consent  will  not be  unreasonably
withheld. The Tax Indemnitee will not be required to appeal any adverse decision
of the United States Tax Court,  a Federal  District  Court,  or any  comparable
trial court unless Lessee will have  furnished to the Tax  Indemnitee an opinion
of a  nationally  recognized,  independent  tax  counsel  chosen by  Lessee  and
reasonably  acceptable  to the Tax


                                       81



Indemnitee,  to the effect that there is substantial  authority for the position
to be asserted in appealing the matter in question.

     (e) Tax Records.  Lessor, Sprint and Lessee agree to furnish or cause to be
furnished  to each  other,  upon  request,  as  promptly  as  practicable,  such
information and assistance relating to the Sites (including, without limitation,
access  to books and  records)  as is  reasonably  necessary  for tax  purposes.
Lessor,  Sprint and Lessee  will retain all books and  records  with  respect to
Taxes  indemnifiable  under Section 39(b) or payable under Section 16 pertaining
to the Sites for a period of at least seven (7) years following the close of the
tax year to  which  the  information  relates,  or sixty  (60)  days  after  the
expiration of any applicable statute of limitations,  whichever is later. At the
end of such  period,  each Party will provide the other with at least sixty (60)
days' prior written notice before destroying any such books and records,  during
which period the Party  receiving such notice can elect to take  possession,  at
its own expense,  of any books and records reasonably required by such Party for
tax purposes.  Lessor,  Sprint and Lessee will  cooperate with each other in the
conduct of any audit or other proceeding relating to Taxes involving the Sites.

     (f) Survival.  The agreements and indemnitees  contained in this Section 39
shall survive the termination of this Agreement with respect to any Site.

     SECTION 40. Lessee Lender Protections.

     For any Lessee  Lender,  if Lessor is given written  notice  specifying the
name  and  address  of the  Lessee  Lender,  or its  servicing  agent,  and  the
applicable  title of an officer or other  responsible  individual  charged  with
processing  notices  of the  type  required  under  this  Section  40,  then the
following  provisions shall apply with respect to such Lessee Lender for so long
as any Mortgage granted by Lessee to such Lessee Lender shall remain unsatisfied
of record:

     (a) Modification, Termination or Surrender of Agreement.

          (i) The  Lessee  Lender  shall  not be  bound by any  modification  or
     amendment of this Agreement in any respect so as to materially increase the
     liability of Lessee  hereunder or materially  increase the  obligations  or
     materially  decrease the rights of Lessee without the prior written consent
     of the Lessee  Lender,  which  consent shall no be  unreasonably  withheld.
     Further,  this Agreement may not be surrendered or terminated other than in
     compliance with the provisions of this Section 40). Any such  modification,
     amendment,  surrender or termination  not in accordance with the provisions
     of this  Section 40 shall not be binding on any such  Lessee  Lender or any
     other Person who acquires title to its foreclosed interest.

          (ii) In  addition,  from  time to time  upon the  request  of a Lessee
     Lender  (but not  more  than  three  (3)  times in any one (1) year  period
     (excluding  the first year  following  the  Effective  Date),  Lessor shall
     execute and deliver to such Lessee Lender an estoppel certificate in a form
     reasonably acceptable to Lessor and the Lessee Lender.

     (b) Notice and Cure Rights.

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          (i) Lessor,  upon serving  Lessee with any notice of default under the
     provisions of, or with respect to, this Agreement,  shall also serve a copy
     of such  notice  upon the Lessee  Lender (in the same manner as required by
     for notices to Lessee) at the address  specified  herein,  or at such other
     address as a Lessee Lender shall designate in writing to Lessor.

          (ii) In the  event  of a  default  or  breach  by  Lessee  under  this
     Agreement,  the Lessee Lender shall have the right, but not the obligation,
     to remedy such  event,  or cause the same to be  remedied,  within ten days
     (10) days after the  expiration  of all  applicable  grace or cure  periods
     provided to Lessee in this Agreement, in the event of a monetary default or
     breach,  or within sixty (60) days after the  expiration of all  applicable
     grace or cure periods  provided to Lessee in this Agreement in the event of
     any other breach or default, and Lessor shall accept such performance by or
     at the  instance  of the  Lessee  Lender  as if the same  had been  made by
     Lessee,  provided,  that if any such non-monetary default or breach that is
     capable  of cure  requires  Lessee  Lender  to  acquire  possession  of the
     Lessee's  interest  in the Sites  that are the  subject  of such  breach or
     default,  such period will be extended for such reasonable period as may be
     required  to obtain  such  possession  and cure  such  default  of  breach;
     provided, however, during such extended period, Lessee Lender must continue
     to cure other  defaults and breaches in accordance  with the  provisions of
     this Section 40(b)(ii).

          (iii) In the event of the  termination of this Agreement  prior to the
     expiration of the Term of this Agreement as provided  herein for any reason
     (other than Lessee's failure to cure under (ii) above),  including pursuant
     to Section  365 of the federal  bankruptcy  code,  as amended  from time to
     time,  including any successor  legislation  thereto, or otherwise,  Lessor
     shall serve upon Lessee Lender  written notice that this Agreement has been
     terminated,  together  with a statement  of any and all sums due under this
     Agreement and of all breaches and events of default  under this  Agreement,
     if any,  then  known to  Lessor.  Lessee  Lender  thereupon  shall have the
     option, which option must be exercised by Lessee Lender's delivering notice
     to Lessor within then (10) Business Days after the Lessee Lender's  receipt
     of notice from Lessor that the Lease has been  terminated  to cure any such
     Lessee  breaches or Lessee  events of default  (and any Lessee  breaches or
     Lessee  events of  default  not  susceptible  of being  cured by the Lessee
     Lender  shall be deemed to have been  waived) and the right to enter into a
     new lease (the "New Lease") (i) effective as of the date of  termination of
     this  Agreement,  (ii) for the remainder of what otherwise  would have been
     the Term of this Agreement but for such termination,  (iii) at and upon all
     the agreements, terms, covenants, and conditions of this Agreement (with no
     Rent  or  Pre-Lease  Rent  payable  thereunder),  and  (iv)  including  any
     applicable   right  to  exercise  the  purchase  option  under  Section  36
     (collectively, the "New Lease Terms"). Upon the execution and delivery of a
     new lease  under this  Section  40, all  Collocation  Agreements  and other
     agreements  which  theretofore  may have been  assigned  to the  Lessor (or
     reverted back to Lessor as a matter of law) thereupon shall be assigned and
     transferred, without recourse, representation or warranty, by Lessor to the
     lessee named in such new lease.

          (iv) Any notice or other  communication  which a Lessee  Lender  shall
     desire or is required  to give to or serve upon  Lessor  shall be deemed to
     have been duly  given or


                                       83



     served  if sent  to  Lessor  in  accordance  with  the  provisions  of this
     Agreement at the address set forth herein.

     (c) Participation in Certain  Proceedings and Decisions.  Any Lessee Lender
shall have the right to intervene  and become a party,  but only with respect to
Lessee's  involvement,  in any  Arbitration,  litigation,  condemnation or other
proceeding  affecting  this  Agreement  to the extent of its  security  interest
herein.  Lessee's  right to make any election or decision  under this  Agreement
that is  required  or  permitted  to be  made  by  Lessee  with  respect  to the
negotiation or acceptance of any Award or insurance  settlement shall be subject
to the prior written approval of such Lessee Lender.

     (d) No Merger.  Without the  written  consent of each  Lessee  Lender,  the
leasehold  interest  created  by this  Agreement  shall not  merge  with the fee
interest  in all or any  portion  of the  Sites,  notwithstanding  that  the fee
interests and the leasehold interests are held at any time by the same Person.

     (e) Encumbrances on Personal Property and Subleases. Lessor hereby consents
to Lessee's  grant,  if any, to any Lessee Lender of a security  interest in the
personal  property  owned by Lessee and  located  at the Sites and a  collateral
assignment  of  subleases of the interest of Lessee in all or any portion of the
Sites and the rents,  issues and profits  therefrom,  if any and a pledge of any
equity interests in Lessee. Lessor agrees that any interest that Lessor may have
in such personal  property,  whether  granted  pursuant to this  Agreement or by
statute, shall be subordinate to the interest of any Lessee Lender.

     (f) Notice of Default Under any Secured Lessee Loan.  Lessee shall promptly
deliver to Lessor a true and correct copy of any such notice of default,  notice
of  acceleration  or other notice  regarding a default by Lessee under a Secured
Lessee Loan after Lessee's receipt of the same.

     (g) Casualty and Condemnation  Proceeds.  Notwithstanding  anything in this
Agreement to the contrary,  in the event of any casualty to or  condemnation  of
any Site or any portion  thereof  during  such time as any  Secured  Lessee Loan
shall  remain  unsatisfied,  the Lessee  Lender shall be entitled to receive all
insurance  Proceeds  and/or  condemnation  awards  (up  to  the  amount  of  the
indebtedness  secured by the Lessee Loan) otherwise  payable to Lessee and apply
same to restoration of the Leased  Property in accordance with the provisions of
this Agreement (to the extent required by the terms of this Agreement); provided
that if the Leased Property is not required to be restored pursuant to the terms
of this Agreement, such Proceeds may be applied to the Secured Lessee Loan. Upon
the Lessee Lender's request,  the name of such Lessee Lender may be added to the
"Loss  Payable  Endorsement"  of any and all insurance  policies  required to be
carried by Lessee hereunder.

     (h) Other.  Notwithstanding  any other  provision of this  Agreement to the
contrary,  (i)  Lessor  shall not be  obligated  to  provide  the  benefits  and
protections  afforded to Lessee  Lenders in this Section 40 to more than two (2)
Lessee  Lenders at any given time or (ii) in no event  whatsoever  will there be
any  subordination  of the rights and interests of Lessor or of Sprint in and to
the Sprint  Collocation Space by virtue of any Mortgage granted by Lessee to any
Lessee  Lender and each Lessee Lender will,  upon request,  confirm such fact in
writing.  If there is more


                                       84



than one Lessee  Lender  subject to the  provisions  of this Section 40,  Lessor
shall recognize the Lessee Lender  exercising rights afforded by this Section 40
whose Secured  Lessee Loan is most senior in lien (unless a Lessee Lender junior
in lien requires  that the holder  thereof have a superior  entitlement  to such
rights,  and the other  Lessee  Lender  senior in lien shall agree in writing to
such  request,  in which event such  recognition  shall be of the holder of that
Secured Lessee Loan),  provided that such Lessee Lender shall have complied with
the provisions of this Section 40; provided,  however, that Lessor shall have no
obligation  to determine  which Lessee Lender is indeed senior in lien and shall
have no liability to either  Lessee  Lender for an erroneous  determination,  if
Lessor attempts to make such a determination,  so long as such  determination is
made in good faith based upon the  evidence  and  information  of lien  priority
provided  to Lessor by the Lessee  Lenders.  Each Lessee  Lender  shall have the
right to appear in any arbitration or other material  proceedings  arising under
this Agreement and to participate in any and all hearings, trials and appeals in
connection  therewith,  but  only  to  the  extent  related  to  the  rights  or
obligations  of Lessee in the matter that is the subject of the  arbitration  or
proceedings  or to  protect  the  security  interest  of  Lessee  in the  Leased
Property.

     (i) Recourse of Lessor.  Lessor's  recourse against any Lessee Lender shall
be expressly  limited to the Lessee  Lender's  interest in this Agreement and in
the Sites and any and all real, personal and intangible property associated with
the Sites  (including  without  limitation,  any revenues  from any  Collocation
Agreements or any Proceeds or Awards).

     SECTION 41. Financeable Sites and Severed Leases.

     (a)  Non-Financeable  Sites.  With  respect  to  each  Site  that  is not a
Financeable Site on the Effective Date, Lessee will use commercially  reasonable
efforts  to make  each  such  Site a  Financeable  Site  prior  to the  one-year
anniversary  of the Effective  Date. In connection  therewith,  Lessee will take
such  actions  and  incur  such  costs,  expenses  and fees as are  commercially
reasonable in light of Lessee's financing structure.

     (b) Mutual  Cooperation.  In connection  with  Lessee's  efforts under this
Section 41(b),  Lessor and the Sprint  Contributors  shall be actively  involved
with Lessee in all material aspects of the efforts to make all Sites Financeable
Sites and shall use commercially  reasonable efforts to cooperate with Lessee in
such respect (but without obligation to pay any out-of-pocket costs, expenses or
fees in respect thereof or related thereto).  Lessee shall provide to Lessor and
the Sprint Contributors  information in reasonable detail from time to time with
respect to the actions  taken by Lessee  pursuant to this Section 41, and Lessor
and the Sprint Contributors shall have the right to request, which request shall
be reasonably  approved by Lessee, to directly contact the applicable Parties in
an  effort to cause any Site to become a  Financeable  Site;  provided  that the
foregoing  shall not obligate  Lessor or the Sprint  Contributors  to expend any
amounts  in  connection  therewith  and may not  obligate  Lessee to expend  any
amounts in connection therewith.

     (c) Failure of Sites to Be Financeable.

          (i) Within thirty (30) days following the one-year  anniversary of the
     Effective Date,  Lessee will deliver to Lessor a written  statement listing
     all  the  Sites  that  are  not   Financeable   Sites   (the   "Preliminary
     Non-Financeable  Sites Statement")  together


                                       85




     with any  Non-Financiable  Site supporting  documentation that Lessee deems
     relevant to be delivered therewith. Within fifteen (15) Business Days after
     receipt  by  Lessor of the  Preliminary  Non-Financeable  Sites  Statement,
     Lessor  shall have the right to  request  Non-Financeable  Site  Supporting
     Documentation  reasonably required by Lessor.  Lessor will have thirty (30)
     days  following  its  receipt  of  the  Preliminary  Non-Financeable  Sites
     Statement and all Non-Financeable Site Supporting  Documentation  requested
     by Lessor in a timely  manner as  provided  herein to notify  Lessee of any
     objection  with respect to the inclusion on such statement of a Site as not
     being  a  Financeable  Site  (and  must  state  any  such  objection  on  a
     Site-by-Site basis, together with a reasonably detailed explanation of such
     objection).  If Lessor does not so notify Lessee of any such objection to a
     specific  Site not being a  Financeable  Site  within  such thirty (30) day
     period  in   accordance   with  this   Section   41(c),   the   Preliminary
     Non-Financeable Sites Statement with respect to such Site will be deemed to
     be the final  non-financeable  sites statement (the "Final  Non-Financeable
     Sites Statement").  All Sites on the Final  Non-Financeable  Site Statement
     shall be deemed to be "Non-Financeable Sites."

          (ii)  Lessor  and  Lessee  will  cooperate  in good faith for ten (10)
     Business  Days  to  resolve  any  dispute   relating  to  the   Preliminary
     Non-Financeable  Sites Statement.  If the Parties are unable to resolve any
     dispute relating to the Preliminary  Non-Financeable Sites Statement within
     such ten (10) Business Day period,  the Parties will  initiate  arbitration
     proceedings  in  accordance  with the  provisions  of Section 31(h) to seek
     final   determination   of  which   Sites   are   included   on  the  Final
     Non-Financeable Site Statement.

          (iii) If the aggregate amount of the  Non-Financeable  Sites Financing
     Costs for all Non-Financeable  Sites included on the Final  Non-Financeable
     Sites Statement exceeds  $10,000,000,  the Sprint  Contributors will pay to
     Lessee an amount equal to fifty percent (50%) of the positive excess of (A)
     the aggregate amount of the Non-Financeable  Sites Financing Costs over (B)
     $10,000,000 by wire transfer of immediately  available  funds to an account
     designated  in  writing  by  Lessee;  provided,  however,  that the  Sprint
     Contributors  shall have no obligation to pay any such amount  attributable
     to any matter for which any Lessee Indemnitee has received payment pursuant
     to a claim for  indemnification  under  Article 9 of the Agreement to Lease
     and Sublease.

     (d) Severance of Agreement.  In order for Lessee's  Affiliates from time to
time to cause the  financing of Sites,  Lessee shall have the right to cause the
severance of this Agreement (or future Severance Leases) into multiple Severance
Leases and have the  "lessee's/operator's"  right under such Severance Lease for
the Severed Sites (as well as the "lessor's" right under the Sprint  Collocation
Agreement  with  respect  to  the  Severed  Sites)  assumed  by a GSI  Financing
Subsidiary,  provided  this Lease shall not be severed  into more than three (3)
Severance  Leases in the aggregate.  Each Severance Lease shall be substantially
in the form of this Lease,  with  appropriate  modifications to reflect the fact
that this  Agreement has been severed.  The Exhibits for such  Severance  Leases
shall  include the  applicable  information  set forth in the  Exhibits for this
Agreement,  solely with respect to the Severed  Sites.  Upon  entering into each
Severance  Lease, the Parties shall also amend the exhibits to this Agreement to
exclude  each of the Severed  Sites.  Lessee  shall also have the right to sever
each of the Master  Collocation  Agreements  with  respect to the Severed  Sites
(and, if requested by Lessee,  Sprint and its Affiliates  shall assist


                                       86



Lessee in  effectuating  same).  The  obligations  of the  "lessee"  under  each
Severance  Lease to Lessor and Sprint under each Severed Lease shall be separate
and distinct from the obligations of the "lessee" under this Agreement and under
each other  Severed  Lease,  and this lease and the Severed  Leases shall not be
cross-defaulted  with one another, and the obligations of Lessee and the lessees
under each severance lease (and Global Parent under each Severed Lease) shall be
separate and distinct from one another.  If Lessee  desires the other Parties to
enter into a Severance Lease,  Lessee shall send notice to Sprint informing such
Parties of its desire to enter into a Severed  Lease,  specifying the applicable
Sites and including  with such notice an executable  Severed Lease and amendment
hereto,  along with amended memoranda of leases or Site Designation  Supplements
with respect to the applicable Sites.  Sprint shall upon receipt of same, review
and reasonably cooperate with Lessee to effect the execution and delivery of any
Severed Lease. Under each Severance Lease and this Lease, following execution of
a Severance Lease the Global Parent Maximum Obligation  hereunder and thereunder
shall be  reduced  to an  amount  equal to the  Ratable  Global  Parent  Maximum
Obligation hereunder and thereunder,  and, if requested by Lessor, Global Parent
will confirm such Ratable Global Parent Maximum Obligation in writing.  "Ratable
Global Parent Maximum  Obligation"  shall mean an amount equal to the product of
(x) the Global  Parent  Maximum  Obligation  and (y) a fraction the numerator of
which is the  aggregate  sum of the Rent and the  Pre-Lease  Rent for the  Sites
remaining  under  this  Lease  or a  Severance  Lease,  as  applicable  and  the
denominator  of which is the aggregate  sum of the Rent and the  Pre-Lease  Rent
hereunder  on the  date  hereof.  Notwithstanding  the  foregoing,  the  Parties
acknowledge  and agree that for all tax purposes,  including  Section 467 of the
Code, a Severance  Lease shall be treated as a  continuation  of this  Agreement
with  respect  to the  Severed  Sites,  no  Severance  Lease  will  contain  any
substantial  modifications to this Agreement, and with respect to each Site, any
Severance Lease and this Agreement will be treated as one lease agreement.

     (e)  Severance  of  Indemnification   Obligations.   With  respect  to  all
indemnification   obligations  of  Lessee  hereunder  (or  of  a  GSI  Financing
Subsidiary under a Severed Lease),  Lessee,  at its election,  may elect to have
Global Parent provide such  indemnities in lieu of Lessee (or the applicable GSI
Financing  Subsidiary),   and  in  connection  therewith  execute  an  indemnity
reasonably  acceptable to Lessor and Sprint,  and upon execution of same, Lessor
will  acknowledge  that Lessee is relieved  of all  indemnification  obligations
hereunder.

     (f)  Cooperation  with  Financing.  Sprint and Lessor  acknowledge  that in
connection with the financings of its interests in the Sites, from time to time,
Lessee may require  legal  opinions (or updates  thereof or reliance  letters or
similar items with respect thereto) from its counsel, at Lessee's expense,  with
respect to certain bankruptcy-related matters and in connection therewith Sprint
and Lessor will  cooperate in taking such actions as may be reasonably  required
to give such opinions as Lessee may reasonably  request and to provide customary
undertakings, representations and certificates (including without limitation, as
corporate  structure  charts,  certifications  that the  requirements of the LLC
Agreement will be, and have at all times been,  complied with), such cooperation
and provision at Lessee's expense.

     SECTION 42. Global Parent Guaranty.

     (a) Global Parent unconditionally  guarantees to the Sprint Indemnitees the
full and timely  payment and  performance  and  observance  of all of the terms,
provisions,  covenants  and


                                       87



obligations of Lessee under this Agreement  (the "Lessee  Obligations").  Global
Parent  agrees  that if  Lessee  defaults  at any time  during  the Term of this
Agreement in the  performance  of any of the Lessee  Obligations,  Global Parent
shall faithfully perform and fulfill all Lessee Obligations that involve payment
of a fixed sum and shall pay to the applicable  beneficiary all attorneys' fees,
court  costs,  and other  expenses,  costs  and  disbursements  incurred  by the
applicable beneficiary on account of any default by Lessee and on account of the
enforcement of this guaranty. Notwithstanding anything to the contrary contained
herein (but subject to the provisions of Section 41(d)),  the maximum  aggregate
amount payable  hereunder by Global Parent shall be Two Hundred  Million Dollars
($200,000,000) (the "Global Parent Maximum  Obligation") and following aggregate
payment by Global Parent to the Sprint Indemnitees of such amount, Global Parent
shall have no further obligations hereunder.

     (b) The foregoing guaranty obligation of Global Parent shall be enforceable
by any  Sprint  Indemnitee  in an  action  against  Global  Parent  without  the
necessity of any suit,  action, or proceedings by the applicable  beneficiary of
any kind or nature  whatsoever  against  Lessee,  without the  necessity  of any
notice to Global Parent of Lessee's default or breach under this Agreement,  and
without the  necessity of any other  notice or demand to Global  Parent to which
Global Parent might  otherwise be entitled,  all of which notices  Global Parent
hereby expressly  waives.  Global Parent hereby agrees that the validity of this
guaranty and the obligations of Global Parent hereunder shall not be terminated,
affected,  diminished,  or impaired by reason of the assertion or the failure to
assert by any Sprint  Indemnitee  against  Lessee any of the rights or  remedies
reserved to such Sprint Indemnitee  pursuant to the provisions of this Agreement
or any other remedy or right which such Sprint  Indemnitee may have at law or in
equity or otherwise.

     (c) Global  Parent  covenants and agrees that this guaranty is an absolute,
unconditional,  irrevocable  and  continuing  guaranty.  The liability of Global
Parent hereunder shall not be affected, modified, or diminished by reason of any
assignment,  renewal,  modification  or  extension  of  this  Agreement  or  any
modification  or waiver of or change in any of the  covenants  and terms of this
Agreement by agreement of a Sprint  Indemnitee and Lessee,  or by any unilateral
action of either a Sprint  Indemnitee or Lessee, or by an extension of time that
may be granted by a Sprint  Indemnitee  to Lessee or any  indulgence of any kind
granted to Lessee,  or any dealings or transactions  occurring  between a Sprint
Indemnitee  and  Lessee,   including,   without   limitation,   any  adjustment,
compromise,  settlement, accord and satisfaction, or release, or any bankruptcy,
insolvency,   reorganization,   arrangements,  assignment  for  the  benefit  of
creditors,  receivership,  or trusteeship  affecting Lessee.  Global Parent does
hereby  expressly  waive  any  suretyship  defense  it may have by virtue of any
statute, Law, or ordinance of any state or other Governmental Authority.

     (d) All of the Sprint  Indemnitees' rights and remedies under this guaranty
are  intended to be  distinct,  separate  and  cumulative  and no such right and
remedy  herein is  intended  to be the  exclusion  of or a waiver of any  other.
Global  Parent  hereby  waives  presentment  demand for  performance,  notice of
nonperformance,  protest  notice of protest,  notice of dishonor,  and notice of
acceptance.  Global Parent further waives any right to require that an action be
brought against Global or any other Person or to require that resort be had by a
beneficiary to any security held by such beneficiary.

     SECTION 43. General Provisions.


                                       88




     (a) Counterparts.  This Agreement may be executed in counterparts,  each of
which will be deemed to be an original, but all of which will constitute one and
the same agreement.

     (b)  Governing  Law.  This  Agreement  will be governed by and construed in
accordance  with the laws of the State of New York  (regardless of the laws that
might otherwise govern under applicable principles of conflicts of laws thereof)
as  to  all  matters,  including  matters  of  validity,  construction,  effect,
performance and remedies.

     (c) Entire Agreement; Successors and Assigns. This Agreement (including the
Exhibits),  constitutes the entire agreement between the Parties with respect to
the subject  matter of this Agreement and supersede all prior  agreements,  both
written and oral, between the Parties with respect to the subject matter of this
Agreement.  This  Agreement will be binding upon and inure solely to the benefit
of each Party and its successors and permitted assigns.

     (d) Fees and Expenses.  Except as otherwise  specifically set forth in this
Agreement,  whether the  transactions  contemplated by this Agreement are or are
not consummated,  all legal and other costs and expenses  incurred in connection
with this Agreement and the transactions  contemplated by this Agreement will be
paid by the Party incurring such costs and expenses.

     (e)  Notices.   All   notices,   requests,   demands,   waivers  and  other
communications required or permitted under this Agreement will be in writing and
will be deemed to have been  delivered  (i) five (5)  Business  Days after being
mailed by first-class  mail,  postage  prepaid,  (ii) the next Business Day when
sent overnight by a recognized  courier service,  (iii) upon  confirmation  when
sent by telecopy, confirmed by mailing written confirmation at substantially the
same time as such telecopy,  or (iv) upon delivery when personally  delivered to
the  receiving  Party (which if other than an  individual  will be an officer or
other  responsible  party  of  the  receiving  Party).   All  such  notices  and
communications  will be mailed,  sent or delivered as set forth below or to such
other  person(s),  telex or facsimile  number(s) or  address(es) as the Party to
receive any such  communication  or notice may have designated by written notice
to the other Party. A notice delivered to any of Lessor or any Person comprising
Sprint shall be deemed to have been delivered to all such Persons.

                  If to Lessor or any Party comprising Sprint, to:

                  Sprint Contracts and Performance
                  Mailstop KSOPHT0101 - Z2650
                  6391 Sprint Parkway
                  Overland Park, Kansas 66251-2650
                  Hotline: (800) 357-7641
                  Fax No. (913) 794-0824
                  Attention: Marion S. Crable, Manager

                  with a copy to:

                  Sprint Law Department
                  Mailstop KS0PHT0101-Z2020
                  6391 Sprint Parkway
                  Overland Park, Kansas 66251


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                  Fax No. (913) 523-9823
                  Attention: Real Estate Attorney

                  and a copy of any notice given pursuant to Section 31 to:

                  King & Spalding LLP
                  191 Peachtree Street
                  Atlanta, Georgia  30303-1763
                  Fax No. (404) 572-5146
                  Attention:  Raymond E. Baltz, Jr.

                  If to Lessee or Global Parent, to:

                  c/o Global Signal Inc.
                  301 North Cattlemen Road
                  Suite 300
                  Sarasota, Florida  34232
                  Attention: General Counsel

                  and a copy of any notice given pursuant to Section 31 to:

                  Skadden, Arps, Slate, Meagher & Flom LLP
                  4 Times Square
                  New York, New York  10036
                  Fax No. (212) 735-3000
                  Attention: Joseph A. Coco

     (f) Headings.  The Section and Article headings contained in this Agreement
are solely for the purpose of  reference,  are not part of the  agreement of the
Parties  and will not in any way affect the  meaning or  interpretation  of this
Agreement.

     (g) Amendment;  Modifications.  This Agreement may be amended,  modified or
supplemented only by written agreement of the Parties.

     (h) Time of the  Essence.  Time is of the  essence in this  Agreement,  and
whenever  a date or time is set forth in this  Agreement,  the same has  entered
into and formed a part of the  consideration  for this  Agreement.

     (i)  Specific  Performance.  Each Party  recognizes  and agrees that if any
other  Party  should  refuse  to  perform  any of  its  obligations  under  this
Agreement,  the remedy at Law would be inadequate  and agrees that for breach of
such  provisions,  each Party will, in addition to such other remedies as may be
available  to it at Law or in equity,  be entitled to  injunctive  relief and to
enforce its rights by an action for specific performance to the extent permitted
by applicable  Law. Each Party hereby waives any requirement for security or the
posting  of any  bond or other  surety  in  connection  with  any  temporary  or
permanent award of injunctive,  mandatory or other equitable relief.  Subject to
Section 43(l) of this  Agreement,  nothing  contained in this  Agreement will be
construed as prohibiting any Party from pursuing any other remedies available to
it pursuant to the  provisions  of this  Agreement  or  applicable  Law for such
breach or  threatened


                                       90




breach,  including  without  limitation the recovery of damages.  The arbitrator
referred to in Section 43(l) will be empowered to enforce this Section 43(i).

     (j) Mutual  Drafting.  This Agreement is the result of the joint efforts of
Lessor, Lessee and Sprint, and each provision of this Agreement has been subject
to the mutual  consultation,  negotiation and agreement of the Parties and there
will be no  construction  against  any Party  based on any  presumption  of that
Party's involvement in the drafting of this Agreement.

     (k) Jurisdiction and Consent to Service.  Without limiting the jurisdiction
or venue of any other  court,  each of the  Parties  (i)  agrees  that any suit,
action or  proceeding  arising  out of or  relating  to this  Agreement  will be
brought  solely in the state or  federal  courts of the State of New York,  (ii)
consents to the exclusive jurisdiction of each such court in any suit, action or
proceeding  relating  to or  arising  out of this  Agreement,  (iii)  waives any
objection  which it may have to the laying of venue in any such suit,  action or
proceeding  in any such court,  and (iv) agrees that  service of any court paper
may be made in such manner as may be  provided  under  applicable  Laws or court
rules governing service of process.

     (l) WAIVER OF JURY TRIAL.

          (i) EACH PARTY  WAIVES  ITS RIGHT TO A JURY TRIAL IN ANY COURT  ACTION
     ARISING  AMONG  ANY OF THE  PARTIES,  WHETHER  UNDER  OR  RELATING  TO THIS
     AGREEMENT,  AND WHETHER MADE BY CLAIM,  COUNTER CLAIM, THIRD PARTY CLAIM OR
     OTHERWISE.  If for any reason the jury waiver is held to be  unenforceable,
     the Parties  agree to binding  arbitration  for any dispute  arising out of
     this  Agreement  or any claim  arising  under any  federal,  state or local
     statutes, Laws or regulations, under the applicable commercial rules of the
     AAA. Any  arbitration  will be held in the New York, New York  metropolitan
     area and be subject  to the  Governing  Law  provision  of this  Agreement.
     Discovery in the arbitration will be governed by the Local Rules applicable
     in the United States District Court for the Southern District of New York.

          (ii) The  agreement  of each  Party to waive its right to a jury trial
     will be  binding  on its  successors  and  assigns  and  will  survive  the
     termination of this Agreement.

          SECTION 44. No Petition; Limited Recourse Against Lessee

     Prior to the date that is one year and one day after the date on which this
Agreement has terminated in accordance  with its terms,  and all  obligations of
the Lessee  under or in respect to any  Secured  Lessee  Loans have been paid in
full,  neither Lessor nor any Sprint  Contributors  will institute,  or join any
other Person in  instituting,  or authorize a trustee or other Person  acting on
its behalf or on behalf of others to institute, any bankruptcy,  reorganization,
arrangement,  insolvency, liquidation,  receivership or similar proceeding under
the laws of the  United  States of  America  or any state  thereof  against  the
Lessee.  The provisions of this Section 44 will survive any  termination of this
Agreement.

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     IN WITNESS  WHEREOF,  the Parties have caused this Agreement to be executed
and sealed by their duly authorized representatives, all effective as of the day
and year first written above.



                                     LESSEE:



                                     By_________________________________
                                     Name:
                                     Title:


                                     LESSOR:



                                     By_________________________________
                                     Name:
                                     Title:


                                     SPRINT:



                                     By_________________________________
                                     Name:
                                     Title:


                                     GLOBAL PARENT:

                                     GLOBAL SIGNAL INC.


                                     By_________________________________
                                     Name:
                                     Title:



                      SIGNATURE PAGE TO LEASE AND SUBLEASE











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