Exhibit 10.181


                                COMMERCIAL OFFICE

                                    L E A S E

                                     BETWEEN

                            MAIN PLAZA, LLC, LANDLORD

                                       and

                       CHARLES SCHWAB & CO., INC., TENANT

                            Premises: 211 Main Street

                             San Francisco, CA 94105

                              Dated: August 8, 1997





19696-5

                                      

                             COMMERCIAL OFFICE LEASE

                             BASIC LEASE INFORMATION


Lease Section

Introductory   Date:                    August 8, 1997
Paragraph

               Landlord:                Main Plaza, LLC,
                                        a California limited liability company

               Tenant:                  Charles Schwab & Co., Inc.
                                        a California corporation

Section 1      Premises:                Those  portions of the  Building
                                        described in Section 1(a) and
                                        as set forth in Exhibit A attached
                                        hereto

               Building:                211 Main Street
                                        San Francisco, California 94105

               Project:                 Land and  improvements  generally
                                        bounded by Main,  Howard and Spear
                                        Streets,  San Francisco,  California,
                                        and consisting of the buildings
                                        commonly  known as 101 Howard
                                        Street,  211 Main Street and 221
                                        Main Street

Section 2      Commencement
               Date:                    As set forth in Section 2(a)

Section 2      Term
               Expiration:              April 30,  2018,  subject to earlier
                                        termination  or extension as provided in
                                        the Lease

Section 2      Term:                    The  period  between  the   Commencement
                                        Date  and  the  Term Expiration.

Section 3(b)   Base Rent:               As  set  forth  in  Exhibit  B,
                                        subject  to   adjustment  in accordance
                                        with Section 3(b)(ii) and Section
                                        3(b)(iii)

Section 3(c)   Additional Charges       Operating  Expenses  and  Real  Estate
                                        Taxes  as set  forth in Section 3(c) and
                                        Exhibit B

Section 33     Tenant's
               Address for
               Notices:                 101 Montgomery Street
                                        San Francisco, California  94104
               Attention:               Senior Vice President
                                        Administrative Services

                                        with copies to:

                                        P. O. Box 881566
                                        c/o Corporate Real Estate
                                            Lease Administration
                                        San Francisco, California  94188-1566

                                        and

                                        Charles Schwab & Co., Inc.
                                        101 Montgomery Street
                                        San Francisco, California 94104
                                        Attention: Mary B. Templeton, Esq.
                                                   Senior Vice President and
                                                   General Counsel

                                        and

                                        Corbin Silverman & Sanseverino LLP
                                        805 Third Avenue
                                        New York, New York 10022
                                        Attention: Raymond A. Sanseverino, Esq.

Section 33     Landlord's
               Address for
               Notices:                 Main Plaza, LLC
                                        101 Howard Street, Suite 404
                                        San Francisco, California 94105

Section 36     Extension Options        As set forth in Section 36

Section 37     Right of First Offer     As set forth in Section 37

Section 38     First Right of           As set forth in Section 38
               Purchase

The provisions of the Lease  identified above in the margin are those provisions
where  references  to  particular  Basic  Lease  Information  appear.  Each such
reference shall incorporate the applicable Basic Lease Information.





19696-5
                                      



                                TABLE OF CONTENTS

                                                                           Page



1.    Premises.................................................................1
                  (a)  Lease of Premises.......................................1
                  (b)  Garage..................................................1


2.    Term; Completion Of Improvements.........................................2
                  (a)  Term....................................................2
                  (b)  Delivery of Premises....................................3
                  (c)  Early Occupancy.........................................4
                  (d)  Change of Order of Delivery of Premises.................5
                  (e)  Commencement Date Agreement.............................5
                  (f)  Damage Prior to Rent Commencement Date..................5
                  (g)  Permitting Delay Caused by Failure to Complete
                                        Landlord's Work........................6


3.    Rental...................................................................6
                  (a)  Definitions.............................................7
                  (b)  Base Rent..............................................15
                  (c)  Additional Charges.....................................17
                  (d)  Rental Commencement....................................28
                  (e)  No Deduction or Offset; Interest.......................29
                  (f)  Calculation Requirements...............................30


4.    Use.....................................................................31


5.    Services................................................................33
                  (a)  Services - General.....................................33
                  (b) Telecommunication Services..............................34
                  (c)  Non-Liability..........................................34
                  (d)  Excess Electricity and Water...........................35
                  (e)  Right to Install Generator.............................36
                  (f)  Abatement..............................................36
                  (g)  Tenant's Right to Cure.................................37
                  (h)  Alternative Suppliers of Utility Services..............38
                  (i)  Replacement of Third Party Service Providers...........38


6.    Taxes Payable By Tenant.................................................39


                                TABLE OF CONTENTS

                                   (continued)

                                                                            Page

7.    Alterations, Additions Or Improvements..................................40
                  (a)  General................................................40
                  (b)  Permitted Alterations and Decorative Work..............41
                  (c)  Removal................................................42
                  (d)  Tenant's Property......................................42
                  (e)  Regulatory Requirements................................42
                  (f)  Construction of Alterations............................43
                  (g)  Compliance by Landlord.................................43
                  (h)  Field Changes to Alterations...........................44
                  (i)  Additional Cooling Tower...............................45
                  (j)  Increase in Live Load and Electrical Capacity..........45
                  (k)  As-Builts..............................................46


8.    Liens...................................................................46


9.    Repairs.................................................................47
                  (a)  Tenant.................................................47
                  (b)  Landlord...............................................47
                  (c)  Abatement..............................................48
                  (d)  Tenant's Right to Cure.................................49
                  (e)  Landlord to Minimize Interference......................50


10.   Destruction Or Damage...................................................50
                  (a)  Damage To Building.....................................50
                  (b)  Damage To Tenant's Improvements And Property...........53
                  (c)  Repair.................................................53
                  (d)  Repairs Not Timely Completed...........................54
                  (e)  Waiver.................................................55
                  (f)  Costs of Repair........................................55
                  (g)  Damage at End of Term..................................56
                  (h)  No Extensions..........................................57


11.   Insurance; Waiver Of Subrogation........................................57
                  (a)  Tenant's Liability Insurance...........................57
                  (b)  Tenant's Self-Insurance................................58
                  (c)  Landlord's Property Insurance..........................59
                  (d)  Landlord's Liability Insurance.........................59
                  (e)  Deductibles............................................60

                                       

                                TABLE OF CONTENTS

                                   (continued)


                                                                            Page

                  (f)  Waiver; Subrogation....................................60



12.   Waiver; Indemnity.......................................................60


13.    Compliance With Legal Requirements.....................................63
                   (a)  General...............................................63
                   (b)  Landlord's Compliance.................................64
                   (c)  Environmental Matters.................................65


14.    Assignment And Subletting..............................................69
                   (a)  Assignment and Subletting.............................69
                   (b)  Information; Landlord's Options.......................71
                   (c)  Assignment or Subletting Conditions...................72
                   (d)  Primary Liability.....................................73
                   (e)  Attorneys' Fees.......................................74
                   (f)  Conflicting Provisions................................74
                   (g)  Brokerage.............................................74
                   (h)  Use or Occupancy by Affiliates
                          and Business Partners...............................74


15.   Rules...................................................................75


16.   Entry By Landlord.......................................................75


17.   Events Of Default.......................................................79


18.   Landlord's Right To Terminate...........................................80


19.   Continuation Notwithstanding Default....................................82


20.   Additional Remedies.....................................................82


21.   Landlord's Right To Cure Defaults.......................................82

                                      


                                TABLE OF CONTENTS

                                   (continued)

                                                                            Page

22.   Litigation Expenses.....................................................83


23.   Eminent Domain..........................................................83


24.   Subordination...........................................................85


25.   No Merger...............................................................87


26.   Sale 87


27.   Estoppel Certificate....................................................88


28.   No Light, Air, Or View Easement.........................................89


29.   Holding Over............................................................89
                  (a)  General................................................89
                  (b)  Single Floor or Contiguous Floors......................89


30.   Abandonment.............................................................90


31.   Surrender...............................................................90


32.   Waiver..................................................................91


33.   Notice..................................................................91


34.   Complete Agreement......................................................92


35.   Corporate Authority.....................................................92


36.   Options to Extend.......................................................93
                  (a)  First Extension Options................................93

                                     


                                TABLE OF CONTENTS

                                   (continued)


                                                                            Page

                  (b)  Second Extension Options...............................94
                  (c)  Conditions.............................................95


37.   Right of First Offer...................................................100


38.   First Right of Purchase................................................103


39.   Building Security......................................................107


40.   Signage................................................................108


41.   Satellite Dish.........................................................110


42.   Miscellaneous Provisions...............................................111


43.   Exhibits...............................................................112


44.   Brokerage..............................................................113


45.   Limitation Of Liability................................................113


46.   Lease Memorandum.......................................................113


47.   Landlord's Failure to Pay the Tenant Improvement Allowance.............114


48.   Building Directory.....................................................114


49.   Quiet Enjoyment........................................................115


50.   Conditions Precedent...................................................115

                                     





                              TABLE OF DEFINITIONS

Defined Term                                            Section Reference

221 Main Street                                         39(c)
ADA                                                     13(a)
Additional Charges                                      3(b)
Administrative Fee                                      Exhibit C
Affiliate                                               14(a)
Alterations                                             7(a)
Applicable Laws                                         Exhibit C
Approved Plans                                          Exhibit C
Available Retail Space                                  37(a)
Base Rent                                               3(a)(i)
Booth Family                                            3(b)(i)
Booth Family Transfer                                   3(b)(i)
Building                                                1(a)
Building Systems                                        7(a)
Business Partner                                        14(h)
Business Partners                                       14(h)
Commencement Date                                       2(a)
Comparable Tenants                                      36(c)(iv)
Contractor                                              Exhibit C
Contractor's Option                                     10(a)
Crossover Space                                         2(c)
Decorative Work                                         7(b)
Drawings                                                Exhibit C
Effective Rate                                          3(b)(i)
Election to Negotiate                                   38(a)
Entire Premises Extension Option                        36(a)(i)
Environmental Activity                                  13(c)(i)
Environmental Requirements                              13(c)(i)
Event of Default                                        17
Extension Period                                        36
First Extension Options                                 36(a)
First Right of Purchase                                 38(a)
Force Majeure                                           2(a)
GAAP                                                    3(b)(i)
Garage                                                  1(a)
Hazardous Material                                      13(c)(i)
HVAC System                                             Exhibit C
Improvement Work                                        Exhibit C
Landlord                                                Introductory Paragraph
Landlord's Statement                                    3(b)(ii)(A)
Landlord's Work                                         Exhibit C
Lease                                                   Exhibit C
Major Signage Rights                                    40(a)
Materially More Favorable                               37(d)
Memorandum                                              46
Negotiation Period                                      38(b)
Net Present Value                                       37(d)
Official Records                                        46
Operating Expenses                                      3(b)(i)
Partial Premises Extension Option                       36(a)(ii)
Permitted Alterations                                   7(b)
Permits                                                 Exhibit C
Personal Property Taxes                                 6(a)
Premises                                                1(a)
Prevailing Market Rent                                  36(b)(iv)
Project                                                 1(a)
Real Estate Taxes                                       3(b)(i)
Rebuilding Period                                       10(a)
Reference Year                                          3(b)(i)
Rent Commencement Date                                  3
Rent Recommencement Date                                10(a)
Requirements                                            13(a)
Retail Space                                            37(a)
Retail Space Offer Notice                               37(a)
Retail Tenant                                           37(e)
Right of First Offer                                    37(a)
Right of Purchase Default Notice                        38(e)
Right of Purchase Notice                                38(a)
Second Extension Options                                36(b)
Secure Areas                                            16(a)
SNDA                                                    24
Standard Building Services                              3(a)(ii)(A)
Standard Cost Per Premises Floor                        3(a)(ii)(A)
Standard Cost Per Rentable Square Foot                  3(a)(ii)(A)
Substantial Completion                                  2(b)
Substantial Completion Date                             2(b)
Substantially Completed                                 2(b)
Target Commencement Date                                3
Target Delivery Date                                    2(a)
Tenant                                                  Introductory Paragraph
Tenant Improvement Allowance                            Exhibit C
Tenant's Agents                                         12(a)
Tenant's Final Plans                                    Exhibit C
Tenant's Initial Improvements                           Exhibit C
Tenant's Pro Rata Share                                 3(b)(i)
Tenant's Property                                       7(d)
Term                                                    Basic Lease Information
Term Expiration                                         Basic Lease Information
Termination Notice                                      18
Third Party Buyer                                       38(c)
Transfer                                                3(b)(i)
Transfer Increase                                       3(b)(ii)(C)
Work Letter                                             2(b)





                                TABLE OF EXHIBITS


Exhibit           Title                          Section Reference

  A     Floor Plans                    Basic Lease Information, 1(a), 1(b), 2(c)
  B     Schedule of
          Information re: Premises     Basic Lease Information, 1(a), 2(a), 3,
                                       3(b)(i), 3(b)(ii), 3(b)(ii)(A),
                                       3(b)(ii)(B), 3(c)(vi)(A), 3(c)(vi)(B)
  C     Work Letter                    2(b)
  D     Notice of Commencement Date    2(e)
  E     Standard Building Services     3(b)(ii)(A), 5(a)(vi)
  F     Examples of Base
          Rent Adjustment              3(b)(ii)
  G     Categories of Landlord's
          Statement                    3(c)(ii)
  H     Confidentiality Agreement      3(c)(iv)
  I     Cleaning Schedule              5(a)(v)
  J     SNDA                           24
  K     Garage Schedule - Entire
          Premises Extension Option    36(a)(i)
  L     Garage/Crossover Space
          Schedule - Partial           36(a)(ii), 36(b)(i)(B)
        Premises Extension Option
  M     Short Form of Lease            46
  N     Termination of Lease           46



19696-5







                             COMMERCIAL OFFICE LEASE


         THIS  LEASE,  dated  as of  the  date  set  forth  in the  Basic  Lease
Information,  which  Basic  Lease  Information  is  attached  hereto  and hereby
incorporated  herein by this reference,  is made and entered into by and between
each of the persons or entities  specified  in the Basic  Lease  Information  as
Landlord ("Landlord") and Tenant ("Tenant"), respectively.




         1.        PREMISES.
                  (a)       Lease of Premises. Landlord hereby leases to Tenant,
and Tenant hereby leases from Landlord,  the entire  Crossover Space (as defined
in Section  2(c)),  the entire second  through  seventeenth  floors,  the entire
Penthouse and a portion of the parking garage  located  beneath the ground floor
of the Building (the "Garage"),  being the premises more particularly  described
in the floor  plans set forth in Exhibit A  attached  hereto  (the  "Premises"),
comprised of 396,107  rentable  square feet, as more  particularly  described in
Exhibit B attached hereto, located within the Building as specified in the Basic
Lease  Information  (the  "Building")  for the Term and  subject  to the  terms,
covenants,  agreements and conditions  hereinafter set forth, to each and all of
which Landlord and Tenant hereby mutually agree.  The Building is located within
the Project as specified in the Basic Lease Information (the "Project").
                  (b)        Garage.  Landlord  hereby  grants to Tenant for the
Term (i) the right of ingress and egress in and over that  portion of the Garage
which is not  included in the Premises  and which  portion is more  particularly
described in Exhibit A hereto,  (ii) the right of ingress and egress in and over
the ramp from Spear Street to the Garage,  and (iii) should Tenant  exercise one
of the  Extension  Options (as  hereinafter  defined),  the right of ingress and
egress in and over that portion of the Garage shown on Exhibit A hereto as shall
be  necessary to enable  Tenant to access the portion of the Garage  included in
the Premises and to use the loading area and freight elevator. Tenant shall have
the  right to park  vehicles  in that  portion  of the  Garage  included  in the
Premises (whether by valet,  which shall be at Tenant's sole cost, or otherwise)
and there  shall be no change in the  rental  for the  Garage by reason of valet
parking.
         2.        TERM; COMPLETION OF IMPROVEMENTS.
                  (a)        Term.  The  Term  of  this  Lease  (excluding  only
Tenant's  obligation to pay Base Rent and Additional  Charges,  which obligation
shall  commence as provided in Section 3 below) shall  commence  with respect to
each  respective  floor of the  Premises  upon the date that  Landlord  delivers
possession of such floor to Tenant in  accordance  with the terms of, and in the
condition  required  by,  Section  2(b) below  (the  "Commencement  Date").  For
purposes  of this  Section  2, the  Garage is deemed  to be a floor  unless  the
context  requires  otherwise.  The respective  target delivery date (the "Target
Delivery  Date")  for each  floor of the  Premises  is set  forth in Column A of
Exhibit B attached hereto.  Unless sooner  terminated or extended as hereinafter
provided,  the Term of this  Lease with  respect to all floors  shall end on the
Term  Expiration date specified in the Basic Lease  Information.  Landlord shall
deliver  possession  of each floor of the  Premises to Tenant on its  respective
Target  Delivery  Date in the  condition  required by Section  2(b). If Landlord
cannot deliver possession of any portion of the Premises to Tenant on the Target
Delivery  Date set forth for such portion of the  Premises  shown in Column A of
Exhibit B due to Force Majeure (as hereinafter  defined),  Landlord's obligation
to deliver  such floor to Tenant shall be extended one day for each day of delay
due to Force Majeure.  In such event,  this Lease shall not be void or voidable,
the Term of this Lease shall not be extended by such delay,  and Landlord  shall
not be liable to Tenant for any loss or damage resulting therefrom. For purposes
of this Lease, "Force Majeure" shall mean any delay caused by strikes, lockouts,
labor disputes,  shortages of material or labor, fire or other casualty, acts of
God or any other event beyond the reasonable control of Landlord,  and shall not
include any inability of Landlord to make  payments when due. If Landlord  fails
to deliver  possession of any portion of the Premises to Tenant in the condition
required by Section 2(b) within fifteen (15) days following the Target  Delivery
Date set forth for such portion of the  Premises  shown in Column A of Exhibit B
(such  fifteen  (15) day period to be  extended by one day for each day of delay
caused by Tenant or Force  Majeure),  Tenant shall receive a credit against Base
Rent and  Additional  Charges  in an amount  equal to Base  Rent and  Additional
Charges for Operating  Expenses and Real Estate Taxes  allocated to such portion
of the  Premises for two (2) days for each day beyond the Target  Delivery  Date
such floor is not delivered to Tenant in the condition required by Section 2(b).
Notwithstanding  anything to the contrary  provided in this Lease,  in the event
that  Landlord  fails to  deliver  possession  of a floor to Tenant  within  one
hundred eighty (180) days after the Target Delivery Date for such floor, as such
number of days is extended by one day for each day of delay  caused by Tenant or
Force  Majeure,  then Tenant shall have the right to  terminate  this Lease with
respect to such floor only by delivering  written  notice to Landlord after such
one hundred eightieth (180th) day but prior to Landlord's delivery of such floor
to Tenant,  in which event  neither  Tenant nor Landlord  shall have any further
obligations or liabilities to the other with respect to such floor.
                  (b)        Delivery of  Premises.  Landlord  shall  deliver to
Tenant possession of each floor of the Premises with Landlord's Work (as defined
in the Work Letter  attached  hereto and  incorporated  herein as Exhibit C (the
"Work Letter")) Substantially Completed (as hereinafter defined),  vacant, broom
clean,  free of  occupancies  and ready  for  Tenant  to begin  construction  of
Tenant's Initial  Improvements  (as defined in the Work Letter).  "Substantially
Completed" or "Substantial  Completion" shall,  whenever used in this Lease with
respect  to  Landlord's  Work,  be deemed to mean that  stage of  completion  of
Landlord's  Work as shall enable  Landlord  and Tenant to agree,  in good faith,
that Landlord's Work has been completed  except for minor punchlist  items,  and
Tenant is able to have or  obtain  (i) all  services  to be  provided  to Tenant
pursuant to Section 5 hereof, except for chilled water and hot water for the air
conditioning  and heating systems serving the Premises,  which services shall be
provided  on or before  November  1, 1997,  and (ii)  access to the  Premises to
commence  Tenant's   construction  of  Tenant's  Initial   Improvements  without
interference  by reason of the  completion of  unfinished  details of Landlord's
Work (i.e.,  only minor  punchlist  items remain to be completed).  "Substantial
Completion Date" shall mean the date that Landlord's Work shall be Substantially
Completed.  Landlord  shall give Tenant not less than seven (7) days'  notice of
the Substantial Completion Date (the requirement of which notice being waived by
Tenant  taking actual  possession of the portion of the Premises  which has been
Substantially  Completed).  Promptly  after such notice shall have been given by
Landlord and prior to the Substantial  Completion Date, Landlord's architect and
Tenant  shall  conduct a joint  inspection  of the  Premises in order to jointly
determine  whether  Landlord's  Work has  been  Substantially  Completed  and to
prepare  a joint  punchlist  of  items to be  completed,  which  items  shall be
completed promptly (but in no event beyond thirty (30) days after preparation of
the punchlist,  subject to Force Majeure) by Landlord following delivery of such
punchlist to Tenant.
                  (c)        Early  Occupancy.  If the  floor  of  the  Premises
described in Exhibit A as the Exit  Crossover (the  "Crossover  Space") is ready
for occupancy prior to the Target Commencement Date (as hereinafter defined) for
such Crossover Space, Tenant shall have the right to take early occupancy of the
Crossover  Space on such date (but in no event prior to January 1,  1998),  and,
notwithstanding  the  provisions  of Section 2(a) above,  the Term of this Lease
with respect to the Crossover  Space  (excluding only the obligation to pay Base
Rent and Additional Charges) shall commence upon such occupancy and shall end on
the date specified in the Basic Lease Information as the Term Expiration.
                  (d)       Change of Order of Delivery of Premises. With regard
to floors 10 through the Penthouse of the Building,  Tenant shall have the right
to change the Target Delivery Date (with a  corresponding  change in the related
Target  Commencement  Date) for any or all of such floors,  thereby changing the
order  of  Tenant's  occupancy  of  such  floors,  provided  that  Landlord  has
Substantially  Completed, or will be able to have Substantially Completed, at no
incremental  cost  to  Landlord  and  without   requiring  any  modification  to
Landlord's existing contract with its general  contractor,  Landlord's Work with
respect to each of such floors  prior to the revised  Target  Delivery  Date for
such floors.
                  (e)        Commencement Date Agreement. Promptly following the
Commencement Date for each floor,  Landlord will execute and deliver to Tenant a
notice in  substantially  the form attached  hereto as Exhibit D identifying the
Commencement  Date, a copy of which  notice,  if accurate,  shall be executed by
Tenant and promptly returned to Landlord.
                  (f)          Damage   Prior   to   Rent   Commencement   Date.
Notwithstanding anything to the contrary contained in this Lease, if an event of
damage or destruction  covered by Section 10 occurs after the Commencement  Date
with respect to a floor, but prior to the Rent Commencement Date (as hereinafter
defined) for such floor,  then Base Rent and Additional  Charges for Real Estate
Taxes and Operating Expenses shall not be due on the Rent Commencement Date, but
shall commence on the Rent Recommencement Date (as hereinafter defined).
                  (g)        Permitting  Delay  Caused by  Failure  to  Complete
Landlord's  Work.  Notwithstanding  anything to the  contrary  contained in this
Lease,  if Tenant is  delayed  in  obtaining  "finalled"  building  permits  for
Tenant's Initial  Improvements on any floor of the Premises previously delivered
by Landlord to Tenant pursuant to Section 2(b) on account of Landlord's  failure
to complete Landlord's Work, then (i) Landlord shall promptly,  using reasonable
diligence,  correct such failure (or cause such failure to be  corrected) at its
cost,  as soon as  possible  in order to minimize  any delay in  obtaining  such
"finalled"  building permits and (ii) the Rent  Commencement Date for such floor
of the  Premises  shall be delayed by one day for each day of delay in obtaining
such "finalled" building permits caused by such failure by Landlord.
         3.        Rental.
                  Tenant shall pay to Landlord throughout the Term of this Lease
the following sums as rental for the Premises,  commencing  with respect to each
respective floor of the Premises,  upon the date (the "Rent Commencement  Date")
which is the earlier of (i) Tenant's  occupancy of such floor for the conduct of
its  business  and (ii) the  later of (A) the date  which is the  number of days
shown in Column C of Exhibit B for such floor  after the actual date of delivery
of possession of such floor to Tenant in the condition  required by Section 2(b)
or (B) the Target  Commencement Date for such floor shown in Column B of Exhibit
B (the "Target  Commencement Date"), as the same date may be revised pursuant to
Section 2(d) above.  Notwithstanding  the foregoing,  Tenant's obligation to pay
rental for the Crossover Space shall commence upon the later of April 1, 1998 or
the actual date of delivery of possession  of the  Crossover  Space to Tenant in
the condition required by Section 2(b).
                  (a)        Definitions.  For the  purposes of this Lease,  the
following terms shall have the meanings hereinafter set forth:
                           "Booth  Family"  shall mean  Corwin and  Caroline  H.
Booth and any person related by blood or adoption to Corwin or Caroline H. Booth
and the spouse of each such person.
                           "Booth  Family Transfer" means a transfer to a member
or members of the Booth  Family or to any entity  owned by any of the  foregoing
members.
                           "Effective Rate" means the rate of interest per annum
publicly  announced by Bank of America NT&SA in San Francisco,  California  from
time to time as its prime commercial  lending  (reference) rate, such rate to be
adjusted  automatically  (without notice) on the effective date of any change in
such publicly announced rate.
                           "Operating  Expenses"  means  all  actual  costs  and
expenses  paid or  incurred  by  Landlord  in  connection  with the  management,
operation,   maintenance  and  repair  of  the  Building,   including,   without
limitation:  (i) the cost of electricity,  natural gas, water, telephone and all
other  utilities,  (ii) the cost of  maintenance  and  repairs and all labor and
material costs related thereto, including,  without limitation,  maintenance and
repair of Building  Systems (as  hereinafter  defined),  and the cost of general
maintenance,  cleaning and service contracts and the cost of all supplies, tools
and  equipment  required in  connection  therewith,  (iii) the cost  incurred by
Landlord for all insurance carried on the Building or in connection with the use
and/or occupancy thereof, (iv) the cost incurred by Landlord for license, permit
and inspection  fees for the Building,  (v) wages,  salaries,  payroll taxes and
other  labor  costs  and  employee  benefits,  subject  to the  last  unnumbered
paragraph of Section 3(c)(ii) below,  (vi) management fees in an amount equal to
two  percent  (2%) of the  amount  of gross  revenue  of the  Building  (for the
purposes of such  calculation,  the gross  revenue  amount  shall  exclude  such
management  fees),  (vii)  fees,  charges  and  other  costs of all  independent
contractors  engaged  by  Landlord,   (viii)  reasonable  accounting  and  legal
expenses, (ix) depreciation on personal property,  determined in accordance with
GAAP  (as  hereinafter  defined),  provided  that the  cost of  purchasing  such
personal  property was not previously  included in Operating  Expenses,  (x) the
rental  value of offices for the  property  manager and related  management  and
operations  personnel,  which  value shall be  calculated  on not more than five
hundred (500) rentable  square feet and shall be located in space  comparable to
the Building,  to the extent  utilized for the management of the Building,  (xi)
the  cost  of  compliance  with  environmental  laws  (including  the  costs  of
monitoring  and  tests),  subject to clause  (21)  below,  (xii) the cost of any
capital improvements made, upon mutual written agreement by Landlord and Tenant,
to the Building after  completion of Landlord's  Work, for the purpose of saving
labor  and/or  energy,  such cost to be  recovered  over the  shorter of (A) the
useful life of such capital  improvements  (such useful life for all purposes of
this  Section  3(a) to be  determined  in  accordance  with  generally  accepted
accounting  principles  consistently applied ("GAAP")),  amortized with interest
equal to  Landlord's  cost of funds  (or,  in the event that  Landlord  does not
borrow funds,  the Effective  Rate),  or (B) the period of time required for the
total  savings  achieved  to equal  the cost of the  capital  improvement,  with
interest equal to Landlord's  cost of funds (or, in the event that Landlord does
not  borrow  funds,  the  Effective  Rate),  (xiii)  the  cost  of  any  capital
improvements made to the Building after the date of this Lease that are required
under any governmental law or regulation that was not applicable to the Building
at the time that permits for the  construction of Landlord's Work were obtained,
such cost to be  amortized  over the useful life of such  capital  improvements,
together with interest equal to Landlord's  cost of funds (or, in the event that
Landlord  does not borrow  funds,  the  Effective  Rate),  (xiv) the cost of any
capital improvements made, upon mutual written agreement by Landlord and Tenant,
to the Building  after  completion of Landlord's  Work to enhance the health and
safety of the public  (including  tenants),  such cost to be amortized  over the
useful  life of such  capital  improvements,  together  with  interest  equal to
Landlord's  cost of funds (or, in the event that Landlord does not borrow funds,
the Effective  Rate),  (xv) the cost of contesting the validity or applicability
of any governmental enactments which may affect Operating Expenses to the extent
Tenant  would be  required  to pay  under  this  Lease  Additional  Charges  for
Operating  Expenses,  and  (xvi)  any  other  expenses  of any  kind  whatsoever
reasonably  incurred in connection with the management,  operation,  maintenance
and repair of the  Building  (other than Real Estate  Taxes and any services for
which Landlord is separately and directly  reimbursed by Tenant or other tenants
in the Building),  provided that, in the event of a conflict or overlap  between
any of clauses  (xii),  (xiii) and/or (xiv) above,  clause (xiii) shall control.
Notwithstanding any of the foregoing,  but without limiting its generality,  and
subject to Section 7, Landlord and Tenant agree that Tenant shall in no event be
charged,  directly or indirectly (through Operating Expenses or otherwise),  for
the replacement of the boilers and cooling towers for the Building,  HVAC pumps,
domestic water pumps and sprinkler pumps,  electrical  switch gear and bus ducts
and HVAC air  handling  units and related  motors,  unless such  replacement  is
necessitated as a result of the negligence or wrongful act or omission of Tenant
or any of  Tenant's  Agents (as  defined in Section  12(a)  below).  None of the
foregoing, however, shall preclude Landlord from including in Operating Expenses
the cost of Landlord's HVAC service contract, which contract shall be subject to
Tenant's  approval,  which shall not be  unreasonably  withheld or delayed,  and
which may provide for air handling unit motor replacement,  and that portion, if
any, of the cost of such service  contract  that is  attributable  to such motor
replacement shall be includible as Operating Expenses. If such motor replacement
is not included in the service contract,  or if any motor replacement results in
one-time  charges  under such  contract,  Landlord will pay for the cost of such
replacements.   Notwithstanding  anything  to  the  contrary  contained  in  the
definition of Operating Expenses, Operating Expenses shall not include, or shall
have  deducted  from them,  as the case may be,  expenses  for:  (1) Real Estate
Taxes; (2) legal,  accounting or other  professional fees incurred in connection
with  negotiating,  preparing or enforcing leases or lease terms,  amendments of
leases,  terminations of leases or extensions of leases, proceedings against any
tenant  (including  Tenant) relating to the collection of rent or other sums due
Landlord  from such  tenant or any other  disputes  with any  tenant  (including
Tenant);  (3) depreciation,  except as expressly set forth in clause (ix) above;
(4) except as a component of amortization as set forth in clauses (xii),  (xiii)
or  (xiv)  above,  interest,   including  interest  on  debt,  debt  service  or
amortization  payments on any mortgage  encumbering the Building (or any portion
thereof) and any  financing  and  refinancing  costs with respect  thereto;  (5)
capital repairs,  capital improvements and capital  replacements,  except as set
forth in  clauses  (xii),  (xiii) or (xiv)  above;  (6) the cost of the  design,
construction,   renovation,   redecorating   or  other   preparation  of  tenant
improvements for Tenant or other tenants or prospective  tenants of the Building
(including  design fees for space planning and all third party fees and charges,
permit license and inspection  fees),  and moving expenses to move in or out, or
relocate,  Tenant  or  other  tenants  to or from the  Building  or  within  the
Building, and allowances for any of the foregoing; (7) real estate brokerage and
leasing commissions and fees; (8) advertising and promotional  expenses incurred
for the purpose of marketing space in the Building or promoting patronage of the
Building by invitees or for any other purpose; (9) wages, salaries, reimbursable
expenses,  benefits and other  compensation  of any personnel above the grade of
the building  manager of the Building;  (10) legal costs  incurred in connection
with  Landlord's  Work,  the initial  development,  construction,  alteration or
improvement  of the  Building;  (11) any rental  under any ground or  underlying
lease; (12) repairs and improvements paid for from the proceeds of insurance (or
which would have been paid from the proceeds of insurance required to be carried
by Landlord  under this Lease if Landlord  has failed to carry such  insurance),
and repairs and improvements  paid for directly by Tenant,  any other tenants of
the  Building,  or any third  party,  and repairs or  improvements  made for the
benefit  solely of  individual  tenants of the  Building  other  than  Tenant as
opposed to being for the  benefit of the  Building;  (13) the cost to repair any
damage or destruction to the Building arising from a casualty, to the extent the
same constitute a capital improvement; (14) amounts received by Landlord through
proceeds of insurance to the extent they are  compensation  for sums  previously
included in Operating  Expenses;  (15)  Landlord's  income taxes and  franchise,
gross  receipts or estate taxes imposed upon the income of Landlord;  (16) costs
with respect to the creation of a mortgage or a superior  lease or in connection
with a sale of the Building,  including  survey,  legal fees and  disbursements,
transfer taxes and  appraisals,  engineering and inspection  reports  associated
with the  contemplated  sale;  (17) payment of damages,  attorneys' fees and any
other  amounts to any  person  seeking  recovery  for  bodily  injury,  death or
property  damage due to Landlord's or its agents'  negligence or other  tortious
acts committed by Landlord or its agents  (including any tort claims relating to
asbestos); (18) costs incurred due to violations by Landlord or by any tenant in
the Building  (including  Tenant) of the terms and conditions of any lease,  and
penalties and interest for late payment of any obligation of Landlord;  (19) any
tenant  improvement  allowance given to any tenant (including  Tenant),  whether
given by contribution or credit against rent or otherwise, and any abatements or
credits to base rent or additional  charges or additional  rent; (20) any rental
concessions  to,  or lease  buy-outs  of,  Tenant  or any  other  tenant  in the
Building;  (21)  costs  incurred  by  Landlord  to  cure  any  violation  of its
obligations  with respect to Hazardous  Materials  under  Section 13(c) below or
with respect to asbestos  removal under Section 7(g) below or to otherwise abate
any asbestos or asbestos containing  materials in the Building other than (A) in
the normal course of Landlord's  operation and maintenance of the Building,  (B)
as provided under clause (xiii) or (xiv) above or (C) as necessitated by any act
or omission of Tenant or any of Tenant's  Agents;  (22) the costs,  expenses and
fees of any asset manager or  investment  advisor  representing  Landlord or any
partner or any other constituent member of Landlord (except that nothing in this
clause (22) is intended to preclude  such  manager,  advisor,  partner or member
from sharing a portion of the property  management fees received by the property
manager);  (23) Landlord's  internal  overhead  expenses,  including the cost of
internal  accounting  (as  opposed  to  Building  accounting)  and  the  cost of
preparation of Landlord's income tax or information  returns;  (24) overhead and
profit  increment  paid to  Affiliates  of  Landlord  for  services on or to the
Building  (other than any  property  management  fees in an amount not to exceed
that set forth in clause (25) below), or for supplies or other materials, to the
extent that such increment or the cost of such supplies or materials  exceed the
cost incurred by Landlord therefor;  (25) property  management fees in excess of
two percent (2%) of the gross revenues (excluding such management fees) received
from or with respect to the  Building;  (26) any costs  (including  compensation
paid to clerks, attendants or other persons) incurred for concessions (such as a
newspaper  stand or flower  stand) or specialty  use (such as a fitness  center)
operated by Landlord with the intent to make a profit;  (27) damages and repairs
necessitated  by the negligence or willful  misconduct of Landlord or Landlord's
employees,  contractors,  agents or visitors;  (28) the cost of Landlord's Work;
(29) any costs or expenses  expressly  excluded as Operating  Expenses under any
other provisions of this Lease; (30) costs arising from Landlord's charitable or
political  contributions;  (31) any expense for which Landlord is entitled to be
reimbursed by any tenant as an additional charge in excess of base rent and such
tenant's share of Operating Expenses; (32) the cost of any repairs, alterations,
additions,  improvements or replacements made to rectify,  remedy or correct any
structural  or other  defect in the  original  design,  construction  materials,
installations  or workmanship of the Building or of Landlord's  Work;  (33) real
estate  association dues; (34) such expenses,  costs and  disbursements  paid or
incurred  by  Landlord  in the  operation,  maintenance  and  management  of the
Building  if such  expenses  are not  considered  expenses  under  GAAP  (unless
otherwise  specifically  set  forth  in this  Lease);  (35)  rentals  (excluding
temporary  rentals)  for items which if  purchased,  rather than  rented,  would
constitute a capital  improvement  which is specifically  excluded in clause (5)
above;  (36) services  provided,  taxes  attributable  to, and costs incurred in
connection with the operation of any retail operations in the Building; (37) the
cost of  electricity  supplied to the Retail Space (as  hereinafter  defined) as
shown on the meters Landlord shall install as part of Landlord's Work to measure
electrical consumption in such space, except to the extent that any Retail Space
is leased by Tenant; (38) the cost of supplying HVAC to the Retail Space, except
to the extent that any Retail Space is leased by Tenant;  and (39) costs of, and
costs to maintain, the intra-building network cabling in the Building. Operating
Expenses  shall  be  "net"  so  that  they  are  reduced  by the  amount  of all
recoupments,  discounts,  credits,  reductions,  allowances or the like actually
received by  Landlord  from third  parties,  on account of  Operating  Expenses,
except that  Landlord  may include in  Operating  Expenses  the actual costs and
expenses, if any, incurred by Landlord in obtaining such recoupments, discounts,
credits, reductions, allowances or the like.
                           "Real  Estate  Taxes"  means,  except as  provided or
limited below, all taxes, assessments and charges levied upon or with respect to
the Building,  any improvements  (including  Tenant's  Initial  Improvements and
other  leasehold  improvements)  located  therein,  or any personal  property of
Landlord  used in the  operation  thereof and  located  therein,  or  Landlord's
interest in the  Building or such  personal  property.  Real Estate  Taxes shall
include,  without  limitation,  all general real property  taxes and general and
special assessments, charges, fees, or assessments for transit, housing, police,
fire, or other  governmental  services or purported  benefits to the Building or
the occupants  thereof,  service  payments in lieu of taxes,  business taxes and
gross  receipts  taxes,  that are now or  hereafter  levied or assessed  against
Landlord  by the  United  States of  America,  the State of  California,  or any
political  subdivision  thereof,  public  corporation,  district,  or any  other
political or public  entity,  and shall also include any other tax, fee or other
excise,  however described,  that may be levied or assessed as a substitute for,
or as an addition to, in whole or in part, any other Real Estate Taxes,  whether
or not now customary or in the  contemplation of the parties on the date of this
Lease. Real Estate Taxes shall not include  franchise,  inheritance,  or capital
stock taxes or income  taxes  measured  by the net income of  Landlord  from all
sources unless, due to a change in the method of taxation,  any of such taxes is
levied or assessed  against  Landlord as a substitute for, or as an addition to,
in whole or in part, any other tax that would otherwise constitute a Real Estate
Tax,  but any such tax shall be  computed as if  Landlord's  sole asset were the
Building  and the land upon which it is  situated.  Real Estate Taxes shall also
include reasonable legal fees, costs, and disbursements  incurred by Landlord in
connection with proceedings to contest,  determine,  or reduce Real Estate Taxes
to the extent  Tenant  would be  required  to pay under  this  Lease  Additional
Charges for Real Estate Taxes.  Notwithstanding the foregoing, Real Estate Taxes
shall not  include,  or shall  have  deducted  therefrom,  as  appropriate,  the
following:  (i) any excess profits taxes,  franchise taxes, gift taxes,  capital
stock taxes,  inheritance and succession taxes, estate taxes,  federal and state
income taxes, and other taxes to the extent applicable to Landlord's  general or
net income (as opposed to rents or receipts), (ii) except as provided in Section
3(b)(x),  interest and penalties  incurred as a result of Landlord's  failure to
make payments of, and/or to file any tax or  informational  returns with respect
to, any Real Estate Taxes,  when due, (iii) any sales taxes or value added taxes
on any item the cost of which would not be  includible  under this Lease as part
of Operating  Expenses,  and (iv)  transfer  taxes in the nature of  documentary
stamp  taxes on a  conveyance  of the  Building  or of the land  upon  which the
Building is located or an  interest  of  Landlord in the  Building or such land.
Real Estate  Taxes shall also  exclude any tax for which  Tenant is  responsible
under Section 6 of this Lease.
                           "Reference  Year" means each twelve (12)  consecutive
month period commencing  January 1st of each year during the Term of this Lease,
including any partial year during which the Term of the Lease commences.
                           "Tenant's Pro Rata Share" means as defined in Section
3(c)(vi).
                           "Transfer"  means a sale,  transfer  or  other  event
constituting a change of ownership for  California  property tax purposes of the
Building or any interest therein,  which Transfer results in an increase in Real
Estate Taxes.
                  (b)       Base Rent.
                           (i) Landlord and Tenant have established for calendar
year 1998 an initial annual base rent ("Base Rent") equal to Twenty-One  Dollars
($21.00)  per  rentable  square  foot,  which  for each  floor  of the  Premises
(excluding  the Garage and  Crossover  Space)  totals to the figure set forth in
Column E of  Exhibit  B,  which  Base Rent  shall be  payable  in equal  monthly
installments  commencing on the Rent Commencement Date for each floor and ending
on December 31, 1998,  which  monthly  installments  shall be as specified  with
respect to each floor of the  Premises in Column F of Exhibit B,  subject to the
further provisions hereof.
                           (ii) Base Rent as set forth in Column E of  Exhibit B
for each floor  (excluding the Garage and Crossover Space) shall be adjusted one
time, subject to Section 3(b)(iii) below, which adjustment shall occur following
the end of calendar year 1998 in accordance with the following provisions:
                                    (A) With reasonable promptness following the
end of  calendar  year  1998,  Landlord  shall  deliver  to Tenant a  Landlord's
Statement (as hereinafter defined) setting forth Landlord's determination of the
actual  component  costs  during  the 1998  calendar  year for each  item of the
services set forth on Exhibit E (the  "Standard  Building  Services").  Landlord
shall then  determine the cost  attributable  to each floor of the Premises (the
"Standard Cost Per Premises Floor") for the provision of such Standard  Building
Services,  which  determination  shall  include an  allocation  of such costs in
accordance with Section  3(c)(vi) below.  Landlord shall then determine the cost
attributable  per rentable  square foot (the "Standard Cost Per Rentable  Square
Foot") for each of the floors two through the  Penthouse of the Premises for the
provision of such Standard Building Services,  by dividing the Standard Cost Per
Premises Floor for each floor by the number of rentable  square feet  comprising
such floor as set forth in Column D of Exhibit B.  Landlord's  determination  of
the actual component costs during 1998, the adjustments to Base Rent referred to
in clause (B) following, and in Section 3(b)(iii) shall be subject to review and
audit by Tenant in accordance with Section 3(c)(iv).
                                    (B) The Base  Rent  shall be  adjusted  with
respect  to each floor of the  Premises  (excluding  the  Garage  and  Crossover
Space), effective from the Rent Commencement Date for such floor through the end
of the Term of this Lease with respect to such floor, to be equal to the product
of (I) Thirty-One  Dollars  ($31.00) less the Standard Cost Per Rentable  Square
Foot for such  floor  multiplied  by (II) the  number of  rentable  square  feet
contained  in such floor (as  specified in Column D of Exhibit B). The Base Rent
as so adjusted shall be payable in equal calendar monthly  installments.  In the
event that,  based on such  adjustment of Base Rent,  Tenant has underpaid  Base
Rent for the period preceding such adjustment,  Tenant shall pay to Landlord the
amount  of  such  shortfall  within  thirty  (30)  days  of  receiving   written
notification  from Landlord of such adjustment of Base Rent, which  notification
shall include a Landlord's Statement and reasonable  documentation setting forth
the basis of such determination.  In the event that, based on such adjustment of
Base Rent, Tenant has overpaid Base Rent for the period preceding the adjustment
of Base Rent,  Landlord shall credit the amount of such overpayment to Base Rent
next  becoming  due.  Until such  adjustment  is made by Landlord  and  Landlord
notifies Tenant thereof, Tenant shall continue to pay Landlord the amount of the
initial  monthly  Base Rent as set forth in Section  3(b)(i)  above.  Annexed as
Exhibit F are examples of the application of the  adjustments  described in this
Section 3(b)(ii) and in Section 3(b)(iii).
                           (iii) The Base Rent as  adjusted  pursuant to Section
3(b)(ii)  above  shall  constitute  the Base Rent for the balance of the Term of
this  Lease,  subject to  further  adjustment  based on  receipt of  information
received after the  adjustment  date with respect to any increase in Real Estate
Taxes assessed on the basis of Landlord's Work and Tenant's Initial Improvements
(up to the amount of the Tenant  Improvement  Allowance  (as defined in the Work
Letter).
                  (c)       Additional Charges. In addition to Base Rent, Tenant
shall pay to Landlord as additional charges  ("Additional  Charges") the amounts
set forth in this Section 3(c).  All monetary  obligations  of Tenant under this
Lease other than Base Rent shall  constitute  "Additional  Charges"  and, in the
event of nonpayment thereof,  Landlord shall have all of the rights and remedies
provided  hereunder and by law as provided for the nonpayment of rent as if such
Additional Charges constituted rent under applicable law.
                           (i) Landlord and Tenant agree that, commencing on the
Rent  Commencement  Date with respect to each  respective  floor of the Premises
(excluding the Garage and the Crossover Space),  and continuing through December
31, 1998, Tenant shall pay as Additional Charges an estimated amount of Tenant's
Pro Rata Share of Real Estate Taxes and Operating  Expenses for  Reference  Year
1998 which amount shall be deemed to be Ten Dollars ($10.00) per rentable square
foot for floors two through the Penthouse of the  Building,  to be paid monthly,
in advance, on or before the first day of each month during such Reference Year.
Upon  adjustment of the Base Rent pursuant to Sections  3(b)(ii) and  3(b)(iii),
Landlord shall determine Tenant's actual Pro Rata Share of Real Estate Taxes and
Operating  Expenses for Reference  Year 1998.  In the event that,  based on such
determination,  Tenant has underpaid Additional Charges for the period preceding
such  adjustment,  Tenant  shall pay to  Landlord  the amount of such  shortfall
within thirty (30) days of receiving written  notification from Landlord of such
determination,  which  notification  shall  include a Landlord's  Statement  and
reasonable  documentation setting forth the basis of such determination.  In the
event that, based on such determination,  Tenant has overpaid Additional Charges
for the period preceding such determination, Landlord shall credit the amount of
such  overpayment to Additional  Charges next becoming due. Each of Landlord and
Tenant  hereby  agrees  that it shall not take any action to reduce or  increase
Operating  Expenses in 1998 which  would  artificially  or unfairly  increase or
reduce the Base Rent adjustment, respectively.
                           (ii) Commencing  January 1, 1999, Tenant shall pay to
Landlord as Additional  Charges one twelfth (1/12) of Tenant's Pro Rata Share of
the Real Estate Taxes and Operating  Expenses for each Reference Year or portion
thereof during the Term,  determined in accordance with Section  3(c)(vi) below,
in advance, on or before the first day of each month during such Reference Year,
in an  amount,  in the  case of  Operating  Expenses,  reasonably  estimated  by
Landlord in a writing  delivered to Tenant  explaining in reasonable  detail the
basis of such  Additional  Charges,  provided  that such  estimate of  Operating
Expenses  for any  Reference  Year  shall  not be in an amount in excess of five
percent  (5%) higher than the amount of  Operating  Expenses  actually  incurred
during the  immediately  preceding  Reference  Year unless Tenant  approves such
estimate,  which approval  shall not be  unreasonably  withheld,  conditioned or
delayed.  Landlord  may revise such  estimates  from time to time subject to the
five percent (5%) limitation in the immediately  preceding sentence with respect
to each such revision (but in no event shall Landlord increase the estimate more
than twice during any Reference  Year) and Tenant will  thereafter make payments
on the basis of such revised estimates.  Landlord agrees that the intent of this
Section  3(c)(ii)  is solely to enable  Landlord  to pay over the  course of the
Reference  Year  Operating  Expenses  incurred  by  Landlord  and not to  permit
Landlord to make an  unreasonably  high  estimate so as to use  Tenant's  monies
beyond  what is  necessary  to pay  Operating  Expenses  over the  course of the
Reference Year.
         With reasonable promptness after the expiration of each Reference Year,
including  the  Reference  Year during which this Lease  expires,  Landlord will
furnish  Tenant  with a statement  audited by an  independent  certified  public
accountant  (herein called "Landlord's  Statement")  setting forth in reasonable
detail the amount of Real Estate Taxes and  Operating  Expenses for the Building
for such  Reference Year and Tenant's Pro Rata Share  thereof,  which  statement
shall be  broken  down  into at least  the  categories  described  on  Exhibit G
attached  hereto.  Each  Landlord's  Statement  shall be prepared by Landlord to
reflect the terms of Section 3 of this Lease.
         If Landlord  fails to render a Landlord's  Statement  with respect to a
Reference  Year within  nine (9) months  after the end of such  Reference  Year,
Landlord  shall have no right  thereafter  to  deliver to Tenant any  Landlord's
Statement  for such  Reference  Year or to otherwise  charge  Tenant for amounts
which would have otherwise appeared on such Landlord's Statement.  Additionally,
Landlord  shall  not have the  right to  include  in  Operating  Expenses  for a
Reference  Year any cost or expense  the bill for which is  received by Landlord
earlier than the Reference Year immediately preceding such Reference Year.
         In the  event  that in any  Reference  Year the  Building  is less than
ninety-five  percent (95%) occupied,  Operating Expenses which are of a variable
nature shall be appropriately  and reasonably  adjusted to reflect a ninety-five
percent (95%)  occupancy  level for the Building  throughout such Reference Year
and, in such event,  Landlord shall set forth the basis for its calculations and
estimations of such Operating  Expenses in reasonable detail. In connection with
conducting  an audit  pursuant  to Section  3(c)(iv),  Tenant may  contest  such
calculations  and  estimations  applicable to the Reference Year with respect to
which  such  audit  is being  conducted.  Landlord  shall  not  recover  through
Operating Expenses any item of cost or expense more than once.
         If Landlord  shall use  personnel  who provide  services in one or more
buildings in addition to the Building,  then for purposes of including the costs
of such  personnel in Operating  Expenses,  Landlord shall allocate the costs of
such  personnel  based on the time devoted by such personnel to the Building and
to other  buildings  based on  records to be  maintained  by  Landlord  for such
purpose.
                           (iii) If  Tenant's  Pro Rata Share of the actual Real
Estate Taxes and Operating  Expenses for a Reference  Year exceeds the estimated
Real Estate Taxes and Operating Expenses paid by Tenant for such Reference Year,
Tenant  shall pay to  Landlord  (whether or not this Lease has  terminated,  but
subject to the limitation  contained in Section 3(c)(ii)) the difference between
the amount paid by Tenant and  Tenant's Pro Rata Share of the actual Real Estate
Taxes and  Operating  Expenses  within  thirty  (30) days  after the  receipt of
Landlord's Statement; and if the total amount of estimated Real Estate Taxes and
Operating  Expenses paid by Tenant for such Reference Year exceeds  Tenant's Pro
Rata Share of the actual  Real  Estate  Taxes and  Operating  Expenses  for such
Reference  Year, such excess shall be credited  against the next  installment of
Base Rent and Additional  Charges due from Tenant  hereunder,  or, if this Lease
has  terminated  and no amounts are due or to become due to Landlord from Tenant
hereunder,  any excess shall be paid to Tenant by check within  thirty (30) days
after such final  determination  of the actual Real Estate  Taxes and  Operating
Expenses.
                           (iv) Within  eleven (11) months after receipt of each
Landlord's  Statement,  including the Landlord's  Statement  issued  pursuant to
Section 3(b)(ii) and Section  3(b)(iii)  setting forth the Base Rent adjustment,
Tenant  shall  have the  right to notify  Landlord  that  Tenant  wishes to have
Landlord's  accounts  and records  relating  to the  calculation  of  Additional
Charges for  Operating  Expenses  and Real Estate  Taxes  audited.  If Tenant so
notifies  Landlord,  Tenant shall have the right,  at its sole  expense  (unless
otherwise  provided below), to have Landlord's  accounts and records relating to
the calculation of Additional  Charges audited by any designated  representative
at  reasonable  hours  during  the  business  day at  Landlord's  offices in San
Francisco,  California. If Tenant fails so to notify Landlord within such eleven
(11) month period,  Landlord's  Statement  shall be conclusive  and binding upon
Tenant except as provided in the final two  sentences of this Section  3(c)(iv).
Landlord  agrees to  provide to Tenant  reasonable,  unfettered  and  relatively
continuous  access to such books and  records to enable  Tenant to conduct  such
audit.  Tenant shall have the right,  at its sole cost and  expense,  and in its
reasonable  discretion,  to make copies of  portions of such books and  records,
provided  that in no event shall  Tenant have the right to remove such books and
records  from  Landlord's  offices.  Any  exercise by Tenant of its audit rights
pursuant to this Section 3(c)(iv) is subject to Tenant's delivery to Landlord of
a confidentiality agreement substantially in the form attached hereto as Exhibit
H. Under no  circumstances  shall Tenant engage any person to conduct such audit
whose compensation is determined, in whole or in part, on any contingency basis.
If such audit reflects that Tenant has overpaid  either  Operating  Expenses for
such  Reference  Year or Real Estate Taxes for such  Reference Year by more than
four  percent  (4%)  calculated  separately,  and  Landlord  concurs  with  such
determination  (or in the  absence  of such  concurrence,  such  overpayment  is
established by arbitration conducted pursuant to Section 3(c)(viii) below), then
Landlord shall  reimburse  Tenant for the  reasonable  cost of such audit within
thirty  (30) days  after  written  demand  therefor  (together  with  reasonably
detailed  supporting  documentation).  In the event that it is  determined  that
there has been an  underpayment  of Operating  Expenses and Real Estate Taxes by
Tenant for such Reference Year, Tenant shall pay to Landlord, within thirty (30)
days after such determination is made, the amount of such underpayment,  and, in
the event that it is determined  that there has been an overpayment of Operating
Expenses and Real Estate Taxes by Tenant for such Reference Year, Landlord shall
credit  the  excess  to the  next  succeeding  installment(s)  of Base  Rent and
Additional  Charges  due under this Lease or, if this Lease has  expired or been
terminated  and no amounts  are due or to become  due to  Landlord  from  Tenant
hereunder,  any overpayment  shall be paid to Tenant by check within thirty (30)
days after such  determination  is made. In the event that Tenant exercises such
right to conduct such an audit and  Tenant's  audit  results in a variance  from
Landlord's Statement, Landlord and Tenant will endeavor in good faith to reach a
mutually  agreeable  resolution  regarding  such variance  between  Landlord and
Tenant's  respective  audits. If the parties are unable to reach such a mutually
agreeable  resolution  within thirty (30) days after arising,  the parties shall
resolve  such  dispute  pursuant  to  Section  3(c)(viii)  below,  to the extent
applicable;  provided  that,  prior  to  any  proceeding  by  Tenant  under  the
arbitration provisions of Section 3(c)(viii),  if Tenant has not previously done
so, Tenant shall be required to retain the services of an independent  certified
public accountant for the purposes of reevaluating  Tenant's prior audit.  Under
no  circumstances  shall Tenant  engage any  accountant  whose  compensation  is
determined,  in whole or in part, on any contingency basis.  Notwithstanding the
foregoing,  if in the course of an audit,  Tenant  determines  that any cost was
improperly  included as Operating Expenses (as opposed to a mathematical  error)
and  Landlord  concurs  with  such  determination  (or in the  absence  of  such
concurrence,  such improper  inclusion is established  by arbitration  conducted
pursuant to Section 3(c)(viii)  below),  then Tenant may audit the two Reference
Years  preceding the Reference Year in question  solely in order to determine if
such improper inclusion occurred in either of such two preceding Reference Years
(unless Tenant has previously  audited such years).  If such improper  inclusion
incurred in either of such two preceding  Reference  Years,  then Landlord shall
promptly  refund to Tenant  the  amount of  overpayment  of  Operating  Expenses
resulting from such inclusion.
                           (v)  Notwithstanding  any  provision in this Lease to
the  contrary,  in the event that either (x) a Transfer  occurs during the first
ten (10) years of the Term of this Lease,  and such Transfer does not constitute
a Booth Family Transfer or (y) a Transfer occurs during the first five (5) years
of the Term of this Lease,  and such  Transfer  does  constitute  a Booth Family
Transfer,  Tenant shall be liable for Tenant's Pro Rata Share of the increase in
Real Estate Taxes  attributable to such Transfer  (determined in accordance with
Section 3(c)(vi) below) in accordance with the following schedule:
                                    (A) For the first  twelve (12) months  after
such Transfer, Tenant shall have no obligation for payment of any portion of the
Transfer Increase (as hereinafter defined).
                                    (B)  For  months   thirteen   (13)   through
twenty-four (24), after such Transfer,  Tenant shall pay 33-1/3% of Tenant's Pro
Rata Share of the Transfer Increase.
                                    (C)  For  months  twenty-five  (25)  through
thirty-six (36),  after such Transfer,  Tenant shall pay 66-2/3% of Tenant's Pro
Rata Share of the Transfer Increase.
                                    (D) For the period following thirty-six (36)
months after such  Transfer and  continuing  until the  expiration  of the Term,
Tenant shall pay the entire amount of Tenant's  share of the Transfer  Increase.
In the event of any other Transfer,  Tenant shall pay Tenant's Pro Rata Share of
the Transfer  Increase in accordance with the terms of this Section 3(c). In the
event of any  Transfer,  Landlord  shall provide to Tenant  reasonably  detailed
information  showing the calculation by the tax assessor of the increase in Real
Estate Taxes attributable to such Transfer ("Transfer Increase"),  including the
supplemental   assessment  pursuant  to  which  such  assessor  determined  such
increase,  and,  in the  case of a Booth  Family  Transfer,  evidence  that  the
Transfer constituted a Booth Family Transfer.
                           (vi)  Landlord and Tenant  hereby agree that all Real
Estate Taxes and  Operating  Expenses  relating to  Landlord's  operation of the
Building shall be allocated to and payable by Tenant as follows:
                                    (A) Except as otherwise  provided in clauses
(C) and (D) below, any and all Real Estate Taxes and Operating Expenses incurred
for  insurance  and  security  provided by Landlord  for the  Building  shall be
allocated  pro rata to floors two through the  Penthouse  of the  Building,  the
Retail Space and the  mezzanine  area of the Building as more  particularly  set
forth in Column G of Exhibit B;
                                    (B)  Any and all  Operating  Expenses  other
than those referred to in clause (A) above shall be allocated pro rata to floors
two through the  Penthouse  of the  Building as more  particularly  set forth in
Column H of Exhibit B;
                                    (C) Any Real Estate  Taxes  attributable  to
the cost of Tenant's Initial  Improvements in excess of the amount of the Tenant
Improvement Allowance; and
                                    (D)   Any   and  all   Real   Estate   Taxes
attributable  to the  construction  of any  Alterations (as defined in Section 7
below).
         Tenant's  obligations  on account of Real  Estate  Taxes and  Operating
Expenses as set forth in this  Section  3(c)(vi)  shall be deemed to  constitute
"Tenant's  Pro Rata Share"  thereof for all  purposes of this Lease.  Nothing in
this Section  3(c)(vi) shall be construed to require Tenant to pay more than one
hundred percent (100%) of taxes otherwise  payable by Tenant pursuant to Section
6.
                           (vii)   If  the  Rent   Commencement   Date  or  Term
Expiration date of this Lease shall occur on a date other than the first or last
day,  respectively,  of a Reference Year, Tenant's Pro Rata Share of Real Estate
Taxes and Operating  Expenses for such Reference Year shall be prorated based on
a 365-day year,  but subject to the  limitation  contained in Section  3(c)(ii),
shall remain  subject to adjustment  based on receipt of  information  after the
Term Expiration date.
                           (viii)  Any  dispute  regarding  either  the  cost of
Operating  Expenses or any increases in Real Estate  Taxes,  up to the amount of
Three  Hundred  and Fifty  Thousand  Dollars  ($350,000),  shall be  settled  by
arbitration conducted and determined in the City and County of San Francisco, in
accordance with this Section 3(c)(viii) and the applicable rules of the American
Arbitration  Association.  Any disputes  regarding  either the cost of Operating
Expenses or any increases in Real Estate Taxes exceeding such limit shall not be
subject to arbitration.  In the event that Landlord  delivers  written notice to
Tenant  demanding  arbitration in accordance with the provisions of this Section
3, Landlord shall, together with such notice,  provide to Tenant the name of one
of the "Big  Six"  accounting  firms  identified  in  Section  38(d)  below or a
successor  thereof  to act as the  arbitrator  hereunder,  which  firm  shall be
subject to  Tenant's  reasonable  approval.  In the event that  Tenant  delivers
written notice of arbitration to Landlord,  Landlord shall,  within fifteen (15)
business days after its receipt of Tenant's  notice,  provide to Tenant the name
of one of the  aforementioned  "Big Six" accounting firms or a successor thereof
to act as the  arbitrator  hereunder,  which firm  shall be subject to  Tenant's
reasonable approval.  The parties shall have a right to submit to the arbitrator
such  information as they deem relevant,  and the arbitrator shall be instructed
to make a determination within forty-five (45) days after the date of his or her
selection.  The  determination of the arbitrator shall be conclusive,  final and
binding on the parties  hereto,  and the judgment or award  rendered in any such
arbitration may be entered in any court having jurisdiction.
                           (ix)  Tenant  shall have the right,  at its sole cost
and expense, to institute tax reduction proceedings to contest Real Estate Taxes
at any time and from time to time assessed during the Term,  whether or not such
contest  occurs during or after the Term.  Notwithstanding  the  foregoing,  all
decisions by either  Tenant or Landlord to institute or to settle tax  reduction
proceedings  contesting  Real  Estate  Taxes  assessed  during the Term shall be
subject to the approval of the other party hereto,  which  approval shall not be
unreasonably  withheld,  conditioned  or  delayed,  and such other  party  shall
cooperate  reasonably  with the contesting  party in  prosecuting  such contest,
executing  such  documents and  instruments  as may be  reasonably  necessary or
appropriate for such contesting party to pursue such contest, including delivery
by Landlord to Tenant of an income and expense  statement  for the  Building and
making available to Tenant any material and information in Landlord's possession
or control  relating to the cost of the Building,  Landlord's Work and any other
improvements  to the  Building  and any other facts that  Tenant may  reasonably
require. If Tenant determines to contest any such Real Estate Taxes and receives
Landlord's  approval,  Tenant may prosecute such contest in Tenant's name, or in
Landlord's name if required by applicable law. Landlord's  cooperation hereunder
shall,  however,  be without cost or expense to Landlord,  and Tenant shall bear
all  costs  and  expense  of any  contest  initiated  and  conducted  by  Tenant
hereunder,  including,  without  limitation,  any and  all  penalties  and  fees
incurred as a result thereof. If Real Estate Taxes shall be reduced by reason of
appropriate  administrative  or legal  proceedings  or otherwise  instituted  by
Tenant  after  payment of all or part of Real  Estate  Taxes for the  applicable
Reference Year, all reasonable  costs,  expenses and fees (including  reasonable
experts' and attorneys'  fees) incurred by Tenant in obtaining said reduction of
Real Estate  Taxes,  shall  first be deducted  from the amount of any refund and
paid to Tenant to reimburse it for such costs, expenses and fees and then Tenant
shall  receive  Tenant's Pro Rata Share of the balance of such  refund.  If Real
Estate Taxes (or the assessed  valuation of the Land and/or  Building)  shall be
reduced  as a result  of  appropriate  administrative  or legal  proceedings  or
otherwise instituted by Tenant prior to the payment of Real Estate Taxes for the
applicable  Reference Year,  Landlord shall pay to Tenant all reasonable  costs,
expenses and fees (including  reasonable  experts' and attorneys' fees) incurred
by Tenant in  obtaining  said Real Estate Tax (or  assessment)  reduction,  less
Tenant's Pro Rata Share of such costs, expenses and fees.
                           (x) In the  event  of the  imposition  by any  taxing
authority of any interest or penalties as a result of the nonpayment by Landlord
of any amount of Real  Estate  Taxes  payable by  Landlord  with  respect to the
Building or the land upon which it is situated,  including  any such interest or
penalties incurred as a result of any Transfer, Tenant shall pay to Landlord the
amount of such interest and penalties within ten (10) business days of receiving
a written  demand from  Landlord  therefor,  if such  interest and penalties are
incurred  as a  result  of  Tenant's  failure  to make any  payment  when due to
Landlord of Real Estate Taxes required to be paid by Tenant hereunder,  provided
that Landlord  shall have billed Tenant for such amount of Real Estate Taxes due
from Tenant.  Except as provided in the immediately  foregoing sentence,  Tenant
shall not be responsible  to pay any interest or penalties  assessed as a result
of the  nonpayment  by Landlord of any amount of Real Estate Taxes  payable with
respect to the Building or the land upon which it is situated.
                  (d)  Rental  Commencement.  Base Rent and  Additional  Charges
shall be paid by Tenant to Landlord with respect to each  calendar  month of the
Term for which rent is payable, on or before the first day of each such calendar
month.  If the  obligation to pay Base Rent or Additional  Charges  commences on
other than the first day of a calendar  month or ends on other than the last day
of a calendar month, the first and last  installments of Base Rent or Additional
Charges shall be pro-rated for the partial  months  involved based on the actual
number of days in such month.
                  (e) No  Deduction  or  Offset;  Interest.  All  Base  Rent and
Additional  Charges  shall be paid to  Landlord,  without  abatement  (except as
otherwise  provided in this Lease),  deduction or offset, in lawful money of the
United  States at  Landlord's  address for notices or to such other person or at
such other  place as  Landlord,  from time to time,  may  designate  in writing.
Tenant  acknowledges  that late  payment by Tenant to  Landlord  of Base Rent or
Additional  Charges will cause Landlord to incur costs not  contemplated by this
Lease,   the  exact  amount  of  such  costs  being   extremely   difficult  and
impracticable  to fix. Such costs include,  without  limitation,  processing and
accounting  charges,  and late  charges  that may be imposed on  Landlord by the
terms of any  encumbrance  and note  secured  by any  encumbrance  covering  the
Building  and/or the Premises.  Therefore,  if any  installment  of Base Rent or
Additional Charges due and payable by Tenant to Landlord is not paid to Landlord
within five (5) days after written notice from Landlord to Tenant of the failure
of Tenant  to pay such sum when due (or,  if  Landlord  has  notified  Tenant in
writing on three occasions  during the twelve (12) months preceding the due date
that  Tenant has failed to pay Base Rent or  Additional  Charges on the due date
thereof, then, if Tenant fails to pay Base Rent or Additional Charges on the due
date  thereof),  Tenant shall pay to Landlord an  additional  sum of two percent
(2%) of the overdue  amount as a late charge.  The parties  agree that this late
charge represents a fair and reasonable estimate of the costs that Landlord will
incur by reason of late payment by Tenant.  In addition,  if any  installment of
Base Rent or  Additional  Charges  due and  payable by Tenant to Landlord is not
paid to and  received  by  Landlord  within  thirty (30) days after the due date
thereof,  then such sums due and payable  shall bear  interest from the date due
until paid at the highest rate legally permitted by applicable law.
         Acceptance of any late charge or interest shall not constitute a waiver
of Tenant's  default on the overdue amount,  or prevent Landlord from exercising
any of the other rights and remedies available to Landlord.
                  (f) Calculation  Requirements.  Landlord agrees that since one
of the  purposes of Operating  Expenses and the gross up provision  set forth in
Section  3(c)(ii) is to allow  Landlord  to require  Tenant to pay for the costs
attributable  to its  Premises,  (i) Landlord will not collect or be entitled to
collect from Tenant with respect to Operating  Expenses,  an amount greater than
Tenant's Pro Rata Share of the Operating  Expenses  actually paid by Landlord in
connection  with the operation of the  Building,  grossed up to 95% occupancy in
accordance  with  Section  3(c)(ii),  (ii)  Landlord  shall make no profit  from
Landlord's  collections of Operating Expenses (exclusive of the management fee),
(iii) all assessments and premiums which are not specifically  charged to Tenant
because of what Tenant has done,  which can be paid by Landlord in installments,
shall be paid by Landlord in the maximum number of installments permitted by law
and not included as Operating Expenses except in the Reference Year in which the
assessment  or premium  installment  is actually  paid and (iv)  Landlord  shall
reduce the amount of  Operating  Expenses  by any  refund or  discount  Landlord
receives in connection  with any costs or  expenditures  previously  included in
Operating Expenses.
         4.        Use.
                  The  Premises  shall be used for  general  office,  garage and
storage  purposes  and the  following  other  ancillary  uses and for no others:
computer service offices, trading floors, a cafeteria and lunchrooms for the use
of Tenant's  employees and visitors only,  classrooms for Tenant's employees and
visitors only, recreational facilities for Tenant's employees and visitors only,
securities  brokerage services for Tenant's  employees only,  photocopy services
related to Tenant's general office use, a generator, which may be installed only
in the Garage in accordance with Section 5(e), and an uninterrupted power supply
system. Notwithstanding the preceding sentence, if Tenant shall lease any Retail
Space pursuant to Section 37 of this Lease, Tenant may use such Retail Space for
any retail use which is consistent  with the image of the Building and permitted
by law and approved by Landlord in its reasonable  discretion.  The reference to
Tenant's employees in this Section 4 shall be deemed to include the employees of
Tenant's  Affiliates  (as  hereinafter  defined)  and the  employees of Tenant's
Business  Partners (as hereinafter  defined) who are permitted  occupants of the
Premises.  Tenant  shall  neither  do nor  permit  to be  done in or  about  the
Premises,  the  Building,  or the Project,  nor bring or permit to be brought or
kept therein,  anything  which is prohibited by or will in any way conflict with
any law,  statute,  ordinance or governmental rule or regulation now in force or
which may  hereafter  be enacted or  promulgated,  or which now or  hereafter is
prohibited  by any  insurance  policy  carried  by  Landlord  or  will  cause  a
cancellation  of any insurance  policy  covering any part of the Building or the
Project.  Tenant,  in its own respect and in respect of Tenant's  Agents,  shall
neither do nor permit anything to be done in or about the Premises, the Building
or the Project which in any way will obstruct or unreasonably interfere with the
rights of any other tenants of the Project  (including  any noise audible or any
odor or vibrations  observable  from outside the  Premises),  or injure or annoy
them, or use or allow the  Premises,  the Building or the Project to be used for
any unlawful  purpose,  nor shall Tenant cause,  maintain or permit any nuisance
in, on or about any of the same,  or commit or suffer to be committed  any waste
or damage in or about any of the same.  Tenant shall not permit any materials to
be placed or stored in the common areas of the Building or the Project and shall
not  permit  debris to be placed  therein,  except  in  appropriate  receptacles
provided therefor.  Tenant and Tenant's Agents shall have the right on a 24 hour
per day - seven (7) day per week basis  during the Term,  subject to  compliance
with  the  reasonable  security   procedures  for  the  Building,   to  the  (a)
non-exclusive use of the outside common areas of the Project,  (b) the exclusive
use of the  entrance  lobby of the  Building  (provided  that  such use shall be
non-exclusive  during any period for which Tenant leases a portion, but not all,
of the  Premises),  (c) the exclusive use of the Building  passenger and freight
elevators  (provided that such use shall be non-exclusive  during any period for
which  Tenant  leases a  portion,  but not all,  of the  Premises),  and (d) the
exclusive use of the Premises.  Tenant shall not use any portion of the Building
(including,  without  limitation,  the Building roof or portions of the Building
leased to other tenants) other than the Premises, excepting only as set forth in
this  Section 4, in Section  41, and such other  portions  of the  Building  and
outside  common  areas of the  Project  as are  necessary  for  fire  and  other
emergency  ingress and egress purposes in accordance with applicable law. Tenant
shall not place any  equipment in or otherwise  utilize the Premises in a manner
that would exceed one hundred (100) pounds per square foot  (including  live and
dead loads), the floor load for which each floor was designed to carry, provided
that,  notwithstanding the foregoing,  Landlord shall not unreasonably withhold,
condition  or delay its consent to Tenant,  at Tenant's  sole cost and  expense,
reinforcing  the floor of any  portion  of the  Premises  pursuant  to plans and
specifications reasonably approved by Landlord, and otherwise in compliance with
Section  7.  Landlord,  in its  reasonable  discretion,  shall have the right to
prescribe  the weight,  size and position of all safes and other heavy  property
brought into the Building,  and also the manner of moving the same in and out of
the Building. Landlord will not be responsible for loss of or damage to any such
safe or property  from any cause,  and all damage done to the Building by moving
or  maintaining  any such safe or  property  shall be repaired at the expense of
Tenant.
         5.        Services.
                  (a)  Services  - General.  Landlord  (subject  to the  further
provisions of this Section 5) shall furnish to the Premises:
                           (i) at such  hours  as  Tenant  shall  require  (with
changes to those hours  requiring  at least four (4) business  hours'  notice to
Landlord),  or  such  shorter  hours  as may  be  prescribed  by any  applicable
mandatory  regulations  adopted by any utility or governmental  agency,  with an
HVAC  System  (as  hereinafter  defined)  designed  to (A)  maintain  within the
Premises and other common areas, an inside dry bulb condition in the range of 72
to 74 degrees Fahrenheit when (I) an outside condition not lower than 38 degrees
Fahrenheit  nor  higher  than 84  degrees  Fahrenheit  dry bulb  and 63  degrees
Fahrenheit wet bulb,  exists and (II) lighting and office equipment demand loads
do not exceed two and  one-half  (2.5) watts per rentable  square  foot,  (B) be
capable  of  supplying  24,000  CFM at a supply  air  temperature  of 55 degrees
Fahrenheit,  (C) provide outside air ventilation at a rate of .15 CFM per square
foot or greater on each floor,  (D) operate in general  conformance  with ASHRAE
Standard  62-1989 and (E) maintain  equipment noise levels at less than or equal
to the values in the 1995 ASHRAE Applications Handbook Chapter 43 Table 2.
                           (ii) an amount of water  not to  exceed  the  current
capacity of the systems serving the Premises;
                           (iii)  electricity  for lighting and the operation of
office  machines  and any  equipment,  in an amount  not to exceed  the  current
capacity of the systems serving the Premises;
                           (iv) an electrical system capable of supplying to the
Premises an average of eight and five-tenths watts per usable square foot of the
Premises of demand load excluding the base building  heating,  air  conditioning
and ventilating systems;
                           (v)  non-attended   passenger  and  freight  elevator
service through eight (8) passenger elevators and one (1) freight elevator;
                           (vi) daily (one shift) janitor service from 7:00 a.m.
to 6:00 p.m., Monday through Friday (except  holidays),  which shall be provided
by  Landlord  in the  manner  that such  service  is  customarily  furnished  in
comparable office buildings in the area in accordance with the cleaning schedule
annexed as Exhibit I; and
                           (vii)   security  for  the  Building  as   reasonably
requested by Tenant.
                  (b) Telecommunication  Services.  Tenant shall provide its own
telecommunications  services to the Premises and shall not have any right to use
the intra-building network cabling in the Building.  Tenant shall have the right
to connect its telecommunications  services to the minimum point of entry to the
Building and to run wires and cabling from such point to  appropriate  locations
throughout the Premises.
                  (c)  Non-Liability.  Except as  otherwise  provided in Section
5(f) and  Section 12 below,  Landlord  shall not be in default  hereunder  or be
liable for any damage directly or indirectly resulting from, nor shall Base Rent
or Additional  Charges herein reserved be abated by reason of, (i) interruption,
failure to furnish or delay in  furnishing  any  services  as  provided  in this
Section 5 when due to causes other than Landlord's  gross  negligence or willful
misconduct,  or  (ii)  the  mandatory  limitation,   curtailment,  rationing  or
restrictions  imposed  by law on use of or  the  failure  of the  supply  by the
relevant  utility to Tenant of,  water,  electricity,  gas, or any other form of
utility  services  serving the  Premises or the  Building.  Except as  otherwise
provided in Section 5(f) below,  Tenant expressly  acknowledges that all utility
services are provided by the relevant utility involved,  and Landlord is to have
no responsibility  for the amount or quality of utility services provided by the
utility to the Building, including without limitation, the improper operation of
Tenant's  equipment  utilizing the same,  but Landlord  shall be  responsible as
hereinafter  set  forth  in this  Section  5(c) if its  wires,  pipes  or  other
facilities and equipment distributing such service throughout the Building shall
fail to meet the  specifications  therefor or where  there is no  specification,
shall fail to function as such system  normally  functions in comparable  office
buildings  in  the  area.   Landlord  shall  promptly   remedy  any  failure  or
interruption in the furnishing of such service,  except that if Tenant's use of,
or access to, the Premises,  or a portion  thereof,  is impaired due to any such
failure or interruption,  Landlord shall employ such measures (including the use
of premium time) in order to cure such failure or  interruption  at the earliest
feasible  time,  and the cost of such  measures  shall be included in  Operating
Expenses to the extent permitted by Section 3(c).
                  (d) Excess  Electricity  and Water.  Tenant  shall not use any
apparatus  or  device  in  the  Premises  which  alone  or  collectively   uses,
electricity  and/or  water in  excess of the  current  capacity  of the  systems
serving the Premises.  If Tenant shall require electric current in excess of the
capacity  of the  systems  serving  the  Premises,  Tenant  shall  first  obtain
Landlord's  consent to the installation of such increased capacity in accordance
with Section  7(j).  If Tenant shall  require water in excess of the capacity of
the systems serving the Premises,  Tenant shall first obtain Landlord's consent,
which shall not be unreasonably withheld or delayed.
                  (e) Right to Install  Generator.  Notwithstanding  anything to
the  contrary  contained  herein,  Tenant shall have the right to install in the
portion of the Premises located in the Garage,  at its sole cost and expense,  a
generator  to support  Tenant's  electrical  requirements  for the  Premises and
Tenant's UPS System.  Tenant shall have the right,  subject to Landlord's  prior
written approval (not to be unreasonably withheld,  delayed or conditioned),  to
run wires between the generator  and the Premises in  appropriate  locations and
through conduits in the Building.  Tenant hereby indemnifies,  defends and holds
Landlord  harmless  from any and all  costs,  damages,  liabilities  and  losses
hereof)  incurred by  Landlord in  connection  with such  generator,  including,
without limitation,  in connection with the use,  maintenance,  installation and
removal  thereof (except to the extent any such costs,  damages,  liabilities or
losses are caused by Landlord, its agents, contractors or employees).
                  (f)  Abatement.  If  Tenant,  as a result  of any  default  by
Landlord  in  performing  any of its  obligations  under this  Section 5, is not
reasonably  capable of  conducting  its  business  in the  Premises or a portion
thereof for a period of more than two (2) consecutive  business days (subject to
extension on a day-by-day  basis as a result of Force Majeure) and in fact fails
to  occupy  the  Premises  or such  portion  for more  than two (2)  consecutive
business days  (subject to extension on a day-by-day  basis as a result of Force
Majeure),  Tenant shall,  commencing on the third (3rd) consecutive business day
(or the next  business  day  following  such  extension  period,  if later),  be
entitled to an  abatement  of Base Rent and  Additional  Charges for Real Estate
Taxes and Operating  Expenses,  which abatement shall be based on the portion of
the Premises to which  Landlord  fails to provide  services  required under this
Section 5 (which  portion  shall not include any other  portion of the  Premises
indirectly affected by any of such failure),  and which portion Tenant is unable
to use for Tenant's business purposes,  and which abatement shall continue until
the earlier of the date on which Tenant is reasonably  capable of conducting its
business in the Premises  (or such portion  thereof) or the date on which Tenant
actually conducts business in the Premises or such portion thereof.
                  (g) Tenant's  Right to Cure. If Landlord  shall default in the
performance  of any of its  obligations  under this  Section  5,  which  default
affects   Tenant's  ability  to  use  and  enjoy  the  Premises  in  the  manner
contemplated  by this  Lease in any  material  respect,  and in the  event  that
Landlord  fails to cure  such  default  within  ten (10) days  after  Landlord's
receipt of written notice from Tenant describing in reasonable detail the nature
of such default (or such longer period of time as may  reasonably be required to
cure such  default in the event that  Landlord  commences  to cure such  default
within such ten (10) day period and diligently  pursues the cure of such default
thereafter to  completion),  then,  upon the giving of an  additional  three (3)
business days' prior written notice of its election to do so (which notice shall
state in capital letters at the top of such notice:  "IN THE EVENT THAT LANDLORD
FAILS TO CURE THE BELOW  DESCRIBED  DEFAULT WITHIN THREE (3) BUSINESS DAYS AFTER
LANDLORD RECEIVES THIS NOTICE, TENANT INTENDS TO CURE SUCH DEFAULT AT LANDLORD'S
EXPENSE"),  and if  Landlord  fails to cure such  default  within such three (3)
business day period (or such longer period of time as reasonably may be required
to cure such default in the event Landlord commences to cure such default within
such  three (3)  business  day period and  diligently  pursues  the cure of such
default  thereafter to completion),  Tenant may at any time thereafter and prior
to Landlord's  cure thereof  remedy such default for  Landlord's  account and at
Landlord's  expense  without  thereby  waiving  such  default  or any  rights or
remedies  of Tenant on account  of such  default.  Landlord  shall pay to Tenant
within thirty (30) days after demand all reasonable sums expended by Tenant,  or
other costs,  damages,  expenses or liabilities  reasonably  incurred by Tenant,
including,  without  limitation,   reasonable  attorneys'  fees  and  costs,  in
remedying or attempting to remedy such default, and interest on all such sums at
the Effective  Rate,  which  obligation  shall survive the  termination  of this
Lease.
                  (h)  Alternative  Suppliers of Utility  Services.  At Tenant's
sole cost and expense, Tenant shall have the right to pursue and apply for lower
cost  alternatives  to any utilities  furnished to the  Premises.  Upon Tenant's
written  request to obtain an  alternative  supplier,  Landlord  shall,  if such
supplier is approved by Landlord, such approval not to be unreasonably withheld,
conditioned or delayed, enter into an arrangement with such alternative supplier
to obtain such alternative utility through Landlord's  facilities and equipment,
and all payments in  connection  therewith  shall be billed by such  supplier to
Landlord and be charged to Tenant by Landlord as Operating  Expenses at the same
rate as charged to Landlord by such alternative supplier.
                  (i) Replacement of Third Party Service Providers. In the event
that Tenant shall be  dissatisfied  with any  independent  vendor  supplying any
service to the  Premises on behalf of  Landlord,  Tenant shall have the right to
provide  Landlord  with a written  notice  specifying  the  nature  of  Tenant's
dissatisfaction  with such  vendor,  which notice shall  provide  Landlord  with
forty-five  (45) days to cause such vendor to remedy the condition  specified in
such  notice  causing  Tenant's  dissatisfaction.  In the event that such vendor
fails to remedy such condition  within such forty-five  (45) day period,  Tenant
shall have the right to  deliver to  Landlord  a second  written  notice,  which
notice  shall  identify  such vendor and the  condition  giving rise to Tenant's
dissatisfaction  and shall state in capital  letters at the top of such  notice:
"LANDLORD'S  AGREEMENT TO REPLACE THE UTILITY SUPPLIER  SPECIFIED BELOW SHALL BE
DEEMED TO BE GIVEN IF SUCH SUPPLIER FAILS TO REMEDY THE CONDITION STATED IN THIS
NOTICE WITHIN THIRTY (30) DAYS AFTER  LANDLORD  RECEIVES THIS NOTICE." If vendor
shall fail to remedy  such  condition  within  such  additional  thirty (30) day
period,  Landlord shall replace such vendor with an alternative  vendor selected
by Tenant and subject to Landlord's  approval,  which shall not be  unreasonably
withheld, conditioned or delayed.
         6.        Taxes Payable By Tenant.
                  (a) In  addition  to the  Base  Rent  and  Additional  Charges
payable by Tenant hereunder,  Tenant shall reimburse Landlord within thirty (30)
days after demand for any and all taxes  payable by Landlord  whether or not now
customary  or within the  contemplation  of the parties  hereto  which are upon,
measured  by,  or  reasonably  attributable  to the cost or  value  of  Tenant's
equipment,  furniture,  fixtures,  and other  personal  property  located in the
Premises,  which taxes are now or hereafter  levied or assessed against Landlord
by the United  States of  America,  the State of  California,  or any  political
subdivision  thereof,  public corporation,  district,  or any other political or
public  entity,  and shall  also  include  any other tax,  fee or other  excise,
however described,  that may be levied or assessed as a substitute for, or as an
addition to, in whole or in part,  any such taxes,  whether or not now customary
or in the contemplation of the parties on the date of this Lease  (collectively,
the "Personal Property Taxes").
                  (b) Tenant shall have the right, upon the terms and conditions
of this  Section 6, to contest any  Personal  Property  Taxes  payable by Tenant
under this Lease.  If Tenant  determines to contest any such  Personal  Property
Taxes,  Tenant shall so notify Landlord and either make payment of such Personal
Property Taxes under protest directly to the levying  authority prior to the due
date  therefor,  and in all events in a manner that will prevent  foreclosure of
any tax lien on any portion of the Project,  or, if such Personal Property Taxes
are included in the tax bill to Landlord and paid by Tenant to Landlord pursuant
to this Section 6, require that Landlord make payment of such Personal  Property
Taxes under  protest.  Tenant may prosecute such contest in Tenant's name, or in
Landlord's  name if required by  applicable  law, and Landlord  shall  cooperate
reasonably with Tenant in prosecuting  such contest,  executing,  furnishing and
making available to Tenant such documents, instruments and information as may be
reasonably   necessary  or  appropriate  for  Tenant  to  pursue  such  contest.
Landlord's  cooperation  hereunder shall, however, be without cost or expense to
Landlord  and Tenant  shall bear all costs and expense of any contest  initiated
and conducted by Tenant hereunder,  including,  without limitation,  any and all
penalties and fees incurred as a result thereof.
         7.        Alterations, Additions Or Improvements.
                  (a) General.  Except for Landlord's Work and Tenant's  Initial
Improvements,  which shall be governed by the provisions of the Work Letter, and
Decorative Work (as hereinafter defined),  Tenant shall not make or suffer to be
made any  alterations,  additions,  or improvements to or of the Premises or any
part  thereof,  or attach  any  fixtures  or  equipment  thereto  (collectively,
"Alterations"),  without Landlord's prior written consent, which may be withheld
in  Landlord's  sole  and  absolute  discretion.   Notwithstanding  any  of  the
foregoing,  Landlord  shall not  unreasonably  withhold,  delay or condition its
consent  to  Alterations  in the  Premises,  which  (i) are not of a  structural
nature,  (ii) except as otherwise  provided in Section  5(d),  do not  adversely
affect  the  base  building  mechanical,   electrical,  sanitary,  heating,  air
conditioning,  ventilating, elevator, plumbing, life-safety or any other service
systems of the Building (collectively,  the "Building Systems") and (iii) except
as  otherwise  provided in Section 40 and Section 41, do not change the Building
exterior. In addition,  Landlord shall not unreasonably  withhold,  condition or
delay  its  consent  to  Alterations  in  the  Premises  which  (A)  entail  the
construction of any internal stairway, core drilling (not to exceed three inches
in diameter) or horizontal beam penetrations in the Premises or (B) increase the
live load or electrical capacity of any floor of the Premises in accordance with
Section  7(j).  Landlord  shall approve or refuse to approve (and in the case of
refusal,  Landlord shall specify  Landlord's  reason  therefor) any  Alterations
proposed to be undertaken by Tenant hereunder and requiring  Landlord's approval
within  fifteen  (15)  business  days with  respect to  Alterations  that affect
Building  Systems or are  structural in nature and within ten (10) business days
for all other  Alterations,  in each case after  Tenant's  delivery of plans and
specifications  therefor,  and any other  information  concerning  the  proposed
Alterations  reasonably  required by Landlord,  together  with a written  notice
requesting approval thereof.
                  (b) Permitted Alterations and Decorative Work. Notwithstanding
anything to the contrary  provided herein,  Tenant shall have the right, upon at
least five (5) days prior written notice to Landlord,  but without the necessity
of obtaining  Landlord's consent, to make Alterations in the Premises consisting
of  any  of the  following  (collectively,  the  "Permitted  Alterations"):  the
installation,  alteration or removal, as the case may be, of electrical outlets,
partitions,  doors,  HVAC zones,  light  fixtures,  hung  ceilings,  wall plugs,
sprinklers and data and  communications  wiring and cabling,  provided that each
such Alteration (i) does not adversely affect the Building Systems and (ii) does
not  cost in  excess  of  $75,000;  provided  further  that the cost of data and
communications  wiring and cabling shall not be included in the  calculation  of
the  cost of each  such  Alteration.  Further,  Tenant  may make  decorative  or
cosmetic  improvements or Alterations  ("Decorative Work") in the Premises (such
as hanging pictures, touch up painting, carpeting, wall covering,  rearrangement
of  movable  work  stations,  modular  units or  similar  items)  without  first
obtaining  Landlord's  consent and without  giving  Landlord  notice and without
obligation to provide "as-built" plans and specifications.
                  (c) Removal.  All such  Alterations  shall  become  Landlord's
property  immediately  and, at the end of the Term  hereof,  shall remain on the
Premises  without  compensation  to Tenant,  unless Landlord elects by notice to
Tenant to have Tenant  remove the same,  in which event  Tenant  shall  promptly
remove such Alterations, repair any damage to the Premises, and restore the area
of the Premises  affected by such removal to its condition  immediately prior to
the installation of such Alterations.  Notwithstanding  the foregoing,  Landlord
shall not require Tenant to restore or remove any  Alterations  for which Tenant
is required to obtain  Landlord's  approval and which  Landlord  has  previously
approved  unless  Landlord  notifies  Tenant at the time of granting  Landlord's
approval for such  Alterations  that Landlord shall require such  restoration or
removal upon the  expiration  or earlier  termination  of this Lease because the
Alterations  (i) are  materially  inconsistent  with typical  office use or (ii)
affect the structure of the Building.
                  (d)  Tenant's  Property.  All  furniture,  furnishings,  trade
fixtures,  equipment and articles of movable personal property  installed in the
Premises  by or for the  account  of Tenant  and which  can be  removed  without
structural  or other  material  damage to the Building  (all of which are herein
called  "Tenant's  Property") shall be and remain the property of Tenant and may
be removed by it at any time during the Term.  Upon the Term  Expiration date or
the  termination  of this Lease,  Tenant  shall  remove from the Premises all of
Tenant's Property.
                  (e)  Regulatory  Requirements.  Tenant  at its  expense  shall
obtain any and all permits and consents of applicable  governmental  authorities
in respect of such  Alterations  and shall comply with the  requirements  of all
governmental authorities in connection therewith,  including all building codes.
In addition, Tenant shall be liable to Landlord and shall reimburse Landlord for
the reasonable costs of any improvements to the Building  (whether or not within
the Premises) which may be required by  governmental  authority as a consequence
of Tenant's  Alterations,  which  reimbursement  shall not constitute  Operating
Expenses and shall be paid by Tenant to Landlord  within  thirty (30) days after
Landlord's  delivery to Tenant of a written  invoice  therefor  with  supporting
documentation therefor.
                  (f)  Construction  of  Alterations.  All  Alterations  made by
Tenant with the prior written consent of Landlord shall be effected  through the
use  of  contractors   approved  by  Landlord,   which  approval  shall  not  be
unreasonably  withheld,  conditioned or delayed,  provided that such contractors
shall maintain a commercial  general  liability  policy of insurance of not less
than  $1,000,000  with a carrier  having a rating  of A minus  VIII or better in
Best's  Insurance  Guide  and  shall  provide  Landlord  with a  certificate  of
insurance  evidencing the same. Landlord shall approve or refuse to approve (and
in the case of refusal,  Landlord shall specify  Landlord's reason therefor) any
contractor  proposed by Tenant within ten (10) days after  Tenant's  delivery of
such  contractors'  name,  address  and trade,  together  with a written  notice
requesting  approval  thereof.  With respect to any and all Alterations,  Tenant
shall pay to  Landlord  an  administrative  fee equal to  Landlord's  actual and
reasonable  out-of-pocket  costs  incurred  in  connection  with the  review  of
Tenant's  plans and the  coordination  with Tenant and its  contractors  for the
construction  of  such  Alterations.  Tenant  will  not be  required  to use any
Building standard or Building stocked materials.
                  (g)  Compliance  by  Landlord.  If Tenant is delayed in making
Alterations on account of Landlord's failure to comply with, or cause compliance
with,  requirements  pursuant  to  Section  13(b)  below,  then  Landlord  shall
promptly,  using  reasonable  diligence,  correct  such  failure  (or cause such
failure to be corrected) as soon as reasonably possible in order to minimize any
delay in the  making by  Tenant of such  Alterations.  If Tenant is  delayed  in
making  Alterations  on account of  Landlord's  failure to have removed from the
Premises any asbestos which is specifically  required to be removed as a part of
Landlord's  Work,  then Landlord shall  promptly,  using  reasonable  diligence,
correct  such failure (or cause such failure to be  corrected)  at its cost,  as
soon as possible in order to minimize  any delay in the making by Tenant of such
Alterations.
                  (h) Field Changes to  Alterations.  Tenant may make changes in
the field to Alterations previously approved by Landlord without first obtaining
Landlord's prior consent so long as such field change (A) is not of a structural
nature, (B) does not adversely affect the Building Systems,  (C) does not change
the  exterior  of the  Building,  (D) is  necessitated  by field  conditions  as
encountered  during the  construction  of the  Alterations and is required to be
made in order to conform the  Alterations to such  condition,  (E) is consistent
with the  purpose  and intent of plans and  specifications  for the  Alterations
approved  by  Landlord,  and (F) does not cost in  excess  of  Fifteen  Thousand
Dollars  ($15,000.00) for a single field change, or Forty-Five  Thousand Dollars
($45,000.00)  in the  aggregate  for all  field  changes,  with  respect  to the
Alterations   under   construction;   provided   that   the  cost  of  data  and
communications  wiring and cabling shall not be included in the  calculation  of
the cost of each such  field  change.  Tenant  shall use  reasonable  efforts to
provide  Landlord notice in accordance with Section 33 prior to making any field
change for which Landlord's consent is not required hereunder,  and in the event
that Tenant is unable to provide such prior written notice, Tenant in all events
shall  provide to Landlord  written  notice of such field  change as promptly as
reasonably  possible.  Such written notice shall set forth  Tenant's  reasonable
estimate of both the cost of the particular  field change being made, as well as
the  aggregate  cost of all field  changes made to such date with respect to the
Alterations under construction.
                  (i) Additional  Cooling Tower.  Landlord agrees to consider in
its  reasonable  judgment any  reasonable  request by Tenant to permit Tenant to
install,  at Tenant's sole cost and expense,  an  additional  cooling tower in a
location  approved by Landlord on the roof of the Building or in the  mechanical
space in the Building to supply  additional  chilled or  condenser  water to the
Premises. In the event that Landlord consents to such request, the parties shall
enter into a Lease amendment  memorializing the terms and conditions under which
Tenant may install such additional cooling tower.
                  (j) Increase in Live Load and Electrical Capacity.  Subject to
the terms and  conditions  of this  Section 7, Tenant  shall have the right,  at
Tenant's sole expense at any time during the Term, (I) to increase the live load
capacity for each floor in the Premises,  provided that any such increase  shall
not in any way  diminish  the live  load  capacity  for any  other  floor of the
Building,  which floor does not  comprise a part of the  Premises,  and provided
further  that upon the  expiration  or earlier  termination  of the Term of this
Lease with respect to any floor of the Premises for which Tenant has  increased,
or caused a decrease in, the live load  capacity,  Tenant shall restore the live
load  capacity  of  such  floor  to  the  live  load  capacity  existing  on the
Commencement  Date for such floor;  (II) to increase the electrical  capacity of
one or more floors in the Premises by the installation of additional panels, bus
taps, wiring, risers and/or transformers,  provided that any such increase shall
not in any way  diminish  the  electrical  capacity  for any other  floor of the
Building,  which floor does not  comprise a part of the  Premises,  and provided
further  that upon the  expiration  or earlier  termination  of the Term of this
Lease with respect to any floor of the Premises for which Tenant has  increased,
or caused a decrease  in, the  electrical  capacity,  Tenant  shall  restore the
electrical capacity to the electrical capacity existing on the Commencement Date
for such  floor;  (III) to install  raised  flooring  in the  Premises;  (IV) to
install a supplemental air conditioning  system in the Premises;  (V) to install
executive bathrooms in the Premises,  and (VI) to remove steel braces or columns
in the Crossover  Space that are not components of the structural  design of the
Building. Notwithstanding any provision contained in this Lease to the contrary,
Tenant shall have no  obligation  to restore or replace any such steel braces or
columns  removed  by Tenant  in  accordance  with  clause  (VI) of the  sentence
immediately preceding.
                  (k)  As-Builts.  Tenant  shall  provide  "as-built"  plans and
specifications  to  Landlord  for any and all of the work  performed  by  Tenant
pursuant  to this  Section 7, as the same may be  modified  from time to time by
field changes specifically  permitted pursuant to this Section 7, as well as any
and all building permits and "finalled" permits required in connection with such
work,  as the same  may be  modified  from  time to  time.  Notwithstanding  the
foregoing,  Tenant  shall  not be  required  to  provide  "as-built"  plans  and
specifications  in connection  with  performing any Decorative  Work,  Permitted
Alterations or individual  field changes  specifically  permitted herein without
Landlord's consent; however,  throughout the Term of this Lease, as the same may
be extended  pursuant to the terms hereof,  Tenant shall be required to maintain
"as-built" plans and specifications covering the Premises, including any and all
Permitted  Alterations  and field changes made thereto  prior to such date,  and
Tenant  shall  provide to Landlord  copies of the same upon  Landlord's  request
therefor.
         8.        Liens.
                  Tenant shall keep the Premises and the Building free and clear
of and from,  and shall  promptly  remove if asserted,  any and all  mechanics',
materialmen's and other liens for work or labor done, services performed and for
materials  used or  furnished in or about the Premises by or on behalf of Tenant
(other than work performed by or materials furnished by Landlord).  Tenant shall
save,  defend,  indemnify and hold Landlord,  the Premises and the Building free
and  harmless  of and from any and all such liens or claims of liens or suits or
other proceedings pertaining thereto.
         9.        Repairs.
                  (a) Tenant. By taking possession of a portion of the Premises,
Tenant  accepts  such  portion as being in the  condition  in which  Landlord is
obligated to deliver the Premises,  subject only to the joint punchlist items as
contemplated  by Section  2(b) hereof and except for any latent  defects,  which
Landlord shall promptly repair.  Tenant, at all times during the Term hereof and
at  Tenant's  sole cost and  expense,  shall  keep the  Premises  and every part
thereof in good  condition  and repair,  excepting  damage due to casualty  with
respect to which the provisions of Sections 10 and 12 shall apply and repairs to
be  performed by Landlord  pursuant to Section 9(b) below.  Except to the extent
provided in Section 9(d) below,  Tenant  hereby waives all right to make repairs
at the expense of Landlord or in lieu thereof to vacate the Premises as provided
by  California  Civil Code  Section  1941 and 1942 or any other law,  statute or
ordinance now or hereafter in effect. Landlord has no obligation and has made no
promise to alter, remodel,  improve,  repair, decorate, or paint the Premises or
any part thereof except as specifically  set forth in this Lease and in the Work
Letter.  Except  as  specifically  set  forth in this  Lease  and the  Exhibits,
Landlord  has not made  any  representations  respecting  the  condition  of the
Premises to Tenant.
                  (b) Landlord.  Landlord  shall manage and operate the Building
consistent  with the management  and operation of a first class office  building
located in San Francisco,  California. Landlord will repair and maintain in good
working  order and  condition  consistent  with the  condition  of a first class
office building the structural  portions of the Building,  the Building Systems,
the exterior  windows,  the exterior  walls and Building roof, the common areas,
and,  to the extent  that  Landlord  is  required  by the City and County of San
Francisco  to maintain the  sidewalks  abutting the  Building,  such  sidewalks,
provided that Tenant shall be obligated to reimburse  Landlord for any repair or
maintenance if  necessitated or occasioned by the wrongful acts or negligence of
or breach of this Lease by Tenant or any of Tenant's Agents.
                  (c)  Abatement.  If  Tenant,  as a result  of any  default  by
Landlord  in  performing  any of its  obligations  under  Section  9(b),  is not
reasonably  capable of  conducting  its  business  in the  Premises or a portion
thereof for a period of more than two (2) consecutive  business days (subject to
extension on a day-by-day  basis as a result of Force Majeure) and in fact fails
to  occupy  the  Premises  or such  portion  for more  than two (2)  consecutive
business days  (subject to extension on a day-by-day  basis as a result of Force
Majeure),  Tenant shall,  commencing on the third (3rd) consecutive business day
(or the next  business  day  following  such  extension  period,  if later),  be
entitled to an  abatement  of Base Rent and  Additional  Charges for Real Estate
Taxes and Operating  Expenses,  which abatement shall be based on the portion of
the  Premises  with  respect to which  Landlord  has  failed to perform  repairs
required  under Section 9(b) (which  portion shall not include any other portion
of the Premises indirectly  affected by any of such failure),  and which portion
Tenant is unable to use for  Tenant's  business  purposes,  and which  abatement
shall  continue  until the  earlier  of the date on which  Tenant is  reasonably
capable of conducting its business in the Premises (or such portion  thereof) or
the date on which  Tenant  actually  conducts  business in the  Premises or such
portion thereof.
                  (d) Tenant's  Right to Cure. If Landlord  shall default in the
performance of any of its obligations  under Section 9(b), which default affects
Tenant's  ability to use and enjoy the  Premises in the manner  contemplated  by
this Lease in any material respect, and in the event that Landlord fails to cure
such default  within ten (10) days after  Landlord's  receipt of written  notice
from Tenant  describing in reasonable detail the nature of such default (or such
longer period of time as may  reasonably be required to cure such default in the
event that  Landlord  commences  to cure such  default  within such ten (10) day
period  and  diligently   pursues  the  cure  of  such  default   thereafter  to
completion),  then,  upon the giving of an additional  three (3) business  days'
prior  written  notice of its  election  to do so (which  notice  shall state in
capital letters at the top of such notice:  "IN THE EVENT THAT LANDLORD FAILS TO
CURE THE BELOW  DESCRIBED  DEFAULT WITHIN THREE (3) BUSINESS DAYS AFTER LANDLORD
RECEIVES  THIS  NOTICE,  TENANT  INTENDS  TO CURE  SUCH  DEFAULT  AT  LANDLORD'S
EXPENSE"),  and if  Landlord  fails to cure such  default  within such three (3)
business day period (or such longer period of time as reasonably may be required
to cure such default in the event Landlord commences to cure such default within
such  three (3)  business  day period and  diligently  pursues  the cure of such
default  thereafter to completion),  Tenant may at any time thereafter and prior
to Landlord's  cure thereof  remedy such default for  Landlord's  account and at
Landlord's  expense  without  thereby  waiving  such  default  or any  rights or
remedies  of Tenant on account  of such  default.  Landlord  shall pay to Tenant
within thirty (30) days after demand all reasonable sums expended by Tenant,  or
other costs,  damages,  expenses or liabilities  reasonably  incurred by Tenant,
including,  without  limitation,   reasonable  attorneys'  fees  and  costs,  in
remedying or attempting to remedy such default, and interest on all such sums at
the Effective  Rate,  which  obligation  shall survive the  termination  of this
Lease.
                  (e)  Landlord to  Minimize  Interference.  Landlord  shall use
reasonable diligence to minimize interference with Tenant's use and occupancy of
the Premises in making any repairs; provided,  however, that Landlord shall have
no  obligation  to employ  contractors  or labor at so-called  overtime or other
premium pay rates or to incur any other overtime  costs in connection  with such
repairs unless same shall adversely  affect the health or safety of occupants of
the Premises or impair  Tenant's use of or access to the Premises in more than a
de minimis  amount,  in which  event  Landlord  shall  perform  such  repairs as
expeditiously as possible, including the use of overtime or premium pay rates if
necessary to perform such work during hours other than Tenant's  normal business
hours.  Notwithstanding  the  foregoing,  if Tenant shall so request in writing,
Landlord  shall  use  reasonable  efforts  to  employ  contractors  or  labor at
so-called  overtime or other premium pay rates or incur other  overtime costs in
making any repairs requested by Tenant, and Tenant shall pay to Landlord, within
thirty (30) days after demand  therefor,  which demand shall be  accompanied  by
supporting  documentation,  an amount  equal to the  excess  costs  incurred  by
Landlord to comply with Tenant's request.
         10.       Destruction Or Damage.
                  (a) Damage To Building.  If the Premises  and/or other portion
of the  Building  are damaged by fire,  earthquake,  act of God, the elements or
other casualty,  Landlord shall forthwith repair the same,  excluding any tenant
improvements  contained  therein,  subject  to the  provisions  of this  Section
hereinafter  set forth,  provided that  Landlord  actually  receives  sufficient
insurance proceeds to cover the cost thereof, unless the reason Landlord did not
receive  sufficient  proceeds is due to  Landlord's  failure to carry  insurance
required under this Lease, and, provided further, that in the written opinion of
a reputable  independent  contractor  retained by  Landlord  (the  "Contractor's
Opinion"),  such repairs can be completed  within eighteen (18) months after the
date of such damage (the "Rebuilding  Period") under the laws and regulations of
the  federal,  state  and local  governmental  authorities  having  jurisdiction
thereof.  Landlord shall use  commercially  reasonable  efforts to apply for and
obtain all insurance  proceeds  promptly  after the  occurrence of any casualty.
Within sixty (60) days after the date of such damage,  Landlord  shall deliver a
copy of the  Contractor's  Opinion to Tenant which opinion shall state how long,
in the opinion of such independent contractor, it will take to make such repairs
after the date of such damage,  and such opinion  shall be binding on Tenant and
Landlord.  If the repairs can be completed  within the Rebuilding  Period,  this
Lease  shall  remain in full force and effect,  except that if Tenant  shall not
have been able to occupy the Premises or any portion  thereof for the conduct of
its business,  Tenant shall be entitled to a proportional abatement of Base Rent
and Additional  Charges for Operating Expenses and Real Estate Taxes (based upon
rentable  square  footage)  for such part of the  Premises  as shall be rendered
unusable  by Tenant in the  conduct  of its  business  as a result of (i) damage
sustained to such part as a result of such casualty, (ii) lack of access to such
part as a result  of such  casualty  or (iii)  failure  by  Landlord  to  supply
services  required to be supplied by Landlord pursuant to Section 5 to such part
as a result of such casualty,  which  abatement  shall commence upon the date of
such damage and  continue  until the Rent  Recommencement  Date (as  hereinafter
defined).  As used herein,  the term "Rent  Recommencement  Date" shall mean the
earliest  to occur of (A) the date that is one hundred  twenty  (120) days after
the date that  Landlord has completed  any and all repairs  required  under this
Section 10 and  redelivered  to Tenant  the  portion  of the  Premises  that was
damaged in a condition such that Tenant is then able to commence restoration and
repair of the Tenant's Initial  Improvements and any other  improvements in such
portion  of the  Premises  without  interference  of more than an  insignificant
amount,  (B) the date on which  Tenant  first  reoccupies  such  portion  of the
Premises for its business  purposes,  or (C) the date on which Tenant would have
been able to reoccupy  such portion of the  Premises had Tenant used  reasonably
diligent efforts to restore and repair the Tenant's Initial Improvements and any
other  improvements  in such  portion of the Premises  constructed  by or on the
behalf of Tenant  following  the  redelivery  of such portion of the Premises by
Landlord to Tenant in the condition  described in clause (A) above. For purposes
of this  Section  10,  "repair"  or  "repairs"  shall  include  all  repair  and
restorative  work  Landlord  in  Landlord's  good  faith but  nevertheless  sole
discretion deems advisable to restore the Building to the condition it was in on
the Commencement Date,  including without limitation,  all work and improvements
Landlord  deems  advisable to improve the condition and quality of the Building,
whether in the form of government  mandated building code upgrades or otherwise,
but excluding any obligation of Landlord to demolish, repair or restore Tenant's
Initial Improvements or Alterations. Notwithstanding anything to the contrary in
this  Section 10, in the event that a casualty  shall occur at any time prior to
April 1, 2013,  this Lease shall  continue in full force and effect (except that
Base Rent and  Additional  Charges for Operating  Expenses and Real Estate Taxes
shall be abated as  hereinabove  provided) and Landlord shall repair and restore
the  casualty  damage with  reasonable  diligence,  provided  that (I)  Landlord
actually  receives  sufficient  insurance  proceeds  to cover the cost  thereof,
unless  the  reason  Landlord  did not  receive  sufficient  proceeds  is due to
Landlord's  failure  to carry  insurance  required  under this  Lease,  (II) the
Contractor's  Opinion indicates that repairs can be completed within twenty-four
(24) months  after the date of such  damage and (III)  Tenant  shall  deliver to
Landlord written notice, given within thirty (30) days after Tenant's receipt of
the  Contractor's  Opinion,  that Tenant elects to require Landlord to repair or
restore such damage  pursuant to this Section  10(a),  and such notice by Tenant
shall be deemed to be Tenant's  agreement  that any  abatement  of Base Rent and
Additional  Charges for Operating  Expenses and Real Estate Taxes will terminate
at the end of the eighteenth (18th) month following the date of such damage, and
commencing  upon  the  nineteenth  (19th)  month  and  continuing   through  the
twenty-fourth  (24th) month following the date of such damage,  Tenant shall pay
to Landlord Base Rent and  Additional  Charges for  Operating  Expenses and Real
Estate Taxes as such amounts become due pursuant to the terms of this Lease,  as
if such casualty had not occurred.
                  (b)  Damage To  Tenant's  Improvements  And  Property.  If the
Premises  are damaged by fire,  earthquake,  act of God,  the  elements or other
casualty,   Tenant  shall   forthwith   repair  or  replace   Tenant's   Initial
Improvements,  Tenant's Alterations,  Tenant's trade fixtures, Tenant's personal
property  and any other  tenant  improvements  in the  Premises,  to the  extent
damaged by such casualty, after Landlord shall have completed its repairs to the
Building as required by Section 10(a),  provided that,  subject to compliance by
Tenant with the  provisions  of Section 7 hereof,  Tenant may make such other or
additional or new Alterations to the Premises as Tenant may deem appropriate for
its occupancy,  and nothing in this Section shall be deemed to require Tenant to
reinstall Tenant's Initial Improvements.
                  (c) Repair.  If Landlord does not actually receive  sufficient
insurance  proceeds to cover the cost of such repairs (where such failure is not
the result of  Landlord's  failure to  maintain  insurance  required  under this
Lease),  or if such  repairs  cannot be made within the  Rebuilding  Period,  as
determined in Section  10(a),  Landlord  shall elect,  by notice to Tenant given
within  thirty  (30) days  after the  receipt  of the  Contractor's  Opinion  of
Landlord's  intention:  (i) to repair or restore  such  damage,  in which  event
(subject to Tenant's right to terminate set forth in the  immediately  following
sentence)  this Lease shall  continue in full force and effect (except that Base
Rent and Additional  Charges for Operating  Expenses and Real Estate Taxes shall
be partially  abated as  hereinabove  provided)  and  Landlord  shall repair and
restore such damage with reasonable  diligence,  or (ii) to terminate this Lease
as of a date  specified in such notice,  which date shall be not less than sixty
(60) nor more than one hundred  twenty  (120) days after notice is given (or, if
earlier,  the last day of the  Term),  provided  that,  as a  condition  of such
termination,  Landlord  shall  have  concurrently  terminated  any other  leases
covering any of floors two (2) through  seventeen  (17) or the  Penthouse of the
Building,  with  respect to which leases  Landlord has a comparable  termination
right,  it being the intent of the parties that  Landlord not be able to use the
provisions  of this  Section 10 to  terminate  "below  market"  leases.  If such
repairs  cannot be completed  within  eighteen (18) months from the date of such
damage,  Tenant  shall have the  option to  terminate  this Lease by  delivering
written  notice of  termination  to  Landlord  within  thirty  (30)  days  after
Landlord's  notice  to  Tenant  of  Landlord's  determination  set  forth in the
preceding  sentence shall have been given,  which termination shall be effective
as of the date set forth in such notice of termination,  which date shall be not
less than sixty (60) nor more than one hundred twenty (120) days after notice is
given (or, if earlier,  the last day of the Term). In the event that such notice
to terminate is given by Landlord or Tenant as provided above,  this Lease shall
terminate on the date  specified in such  notice.  Landlord  agrees to refund to
Tenant any Base Rent and Additional  Charges for Real Estate Taxes and Operating
Expenses  previously  paid for any  period  of time  subsequent  to such date of
termination.  Tenant  agrees to pay to  Landlord  any Base  Rent and  Additional
Charges accrued and unpaid as of such date of termination.
                  (d)  Repairs Not Timely  Completed.  If neither  Landlord  nor
Tenant shall have exercised its option to terminate pursuant to this Section 10,
but Landlord shall not have,  within one hundred and twenty (120) days after the
date by  which  the  Contractor's  Opinion  indicated  repairs  could  be  made,
completed  the repair of the Building and  redelivered  to Tenant the portion of
the Premises that was damaged in the condition  required by Section 10(a),  then
Tenant  may  notify  Landlord  (with a copy of such  notice  to be  concurrently
delivered by Tenant to  Landlord's  Lender (as  hereinafter  defined),  provided
Landlord shall have provided to Tenant written notice of the name and address of
Landlord's  Lender) that unless  Landlord or  Landlord's  Lender shall cause the
delivery to Tenant of such  portion of the  Premises in the  condition  required
above within  fifteen (15) days  following  the giving of such notice by Tenant,
this Lease shall  terminate upon the expiration of such fifteen (15) day period.
If this Lease shall be terminated  pursuant to this Section 10,  Landlord  shall
promptly  refund to Tenant any Base Rent and  Additional  Charges for  Operating
Expenses  and Real Estate  Taxes paid by Tenant with respect to any period after
the effective date of termination less any sums due and owing Landlord by Tenant
under this Lease.
                  (e)  Waiver.  Tenant  waives  California  Civil Code  Sections
1932(2) and 1933(4)  providing for termination of hiring upon destruction of the
thing hired in lieu of the provisions of this Section 10 which shall govern.
                  (f) Costs of Repair.  If the Premises are to be repaired under
this  Section  10,  Landlord  shall pay the cost of any  injury or damage to the
Building  itself,  excluding  any tenant  improvements  contained  therein,  and
Landlord's  proportionate  share of the cost of any  injury  or damage to tenant
improvements in the Premises paid for by Landlord hereunder, which proportionate
share  shall be based on the ratio of (i) the amount of the  Tenant  Improvement
Allowance  actually  expended by Landlord to (ii) the aggregate cost  (including
hard and soft costs) of Tenant's Initial Improvements and Alterations.  Upon any
event of  casualty  causing  injury  or damage  to  tenant  improvements  in the
Premises  for which  Tenant  seeks  contribution  from  Landlord for the cost of
repair, Tenant shall promptly provide Landlord with the information set forth in
the  immediately  preceding  clause  (ii),  together  with  reasonably  detailed
supporting  documentation.  Tenant  shall  pay the  cost of  repairing  Tenant's
Alterations,   Tenant's  improvements  (subject  only  to  the  two  immediately
preceding  sentences),  Tenant's trade fixtures,  Tenant's personal property and
any other  tenant  improvements  in the Premises  and shall be  responsible  for
carrying such casualty  insurance as it deems  appropriate  with respect to such
other tenant improvements.
                  (g)  Damage  at End of  Term.  Notwithstanding  the  foregoing
provisions  of this Section 10, if any event of casualty  occurs during the last
twelve (12) months of the Term of this Lease, as the same may have been extended
pursuant  to Section  36,  which  event of  casualty  shall cause such damage or
destruction to the Building that Landlord  determines,  in its sole and absolute
discretion, that the cost of repairing any floor of the Premises damaged by such
event to the  condition  required  by  Section  10(a)  shall  cost at least  the
equivalent of three (3) month's Base Rent and  Additional  Charges for Operating
Expenses  and Real Estate Taxes for such floor,  then either  Landlord or Tenant
shall have the right to  terminate  this Lease with respect to such floor of the
Premises upon written  notice to the other within thirty (30) days following the
event of damage or destruction.  In the event that such notice to terminate this
Lease with  respect to any floor of the  Premises is given by Landlord or Tenant
as provided  above,  this Lease shall  terminate  on the date  specified in such
notice,  which date shall be not less than sixty (60) nor more than one  hundred
twenty  (120) days after  notice is given (or, if  earlier,  the last day of the
Term).  Landlord agrees to refund to Tenant any Base Rent and Additional Charges
for Real Estate Taxes and Operating  Expenses  previously paid for any period of
time  subsequent to such date of  termination.  Tenant agrees to pay to Landlord
any Base  Rent and  Additional  Charges  accrued  and  unpaid as of such date of
termination.
                  (h) No Extensions.  None of the time periods contained in this
Section 10 shall be extended by reason of Force Majeure.
         11.       Insurance; Waiver Of Subrogation.
                  (a) Tenant's Liability Insurance. Tenant, at Tenant's expense,
shall  maintain  in full force  during the Term  hereof a policy or  policies of
commercial general liability insurance insuring against claims and liability for
personal injury, death and property damage arising in or about the Premises, the
Building  and  adjoining  areas or ways,  with a carrier or carriers  reasonably
acceptable to Landlord and Landlord's  Lender.  Landlord agrees that any carrier
or  carriers  having a rating of not less than A minus  VIII or better by Best's
Insurance Guide is reasonably  acceptable to Landlord.  The liability under such
insurance  shall not be less than  $10,000,000  combined single limit and with a
deductible  amount  reasonably  acceptable  to Landlord and  Landlord's  Lender,
provided  that any  deductible  within the self  insurance  limits  provided  in
Section  11(b)  below  shall be deemed  reasonably  acceptable.  Such  policy or
policies  of  insurance  shall  (i)  name  Landlord  and  Landlord's  Lender  as
additional insureds, provided Landlord shall have given Tenant written notice of
the name and address of Landlord's Lender,  (ii) be non-assessable,  primary and
non-contributory  with any policies carried by Landlord,  (iii) provide that the
same may not be  canceled  or  materially  amended  except upon thirty (30) days
prior written notice to Landlord and (iv) be issued on an occurrence basis. Such
coverage may be provided by a combination  of commercial  general  liability and
excess umbrella  policies.  Any insurance policy may be maintained by a "blanket
policy"  insuring  other  parties and other  locations so long as the amount and
coverage required to be provided hereunder is not thereby diminished.  Tenant at
all times shall maintain with Landlord a current  certificate or certificates of
said policy or policies.  The amount of insurance  coverage provided for in this
Section 11 shall be increased from time to time during the Term hereof,  but not
more frequently  than every five (5) years,  upon thirty (30) days' prior notice
from Landlord to the extent reasonably  required by circumstances  then existing
if and when  Landlord  reasonably  determines  that such increase is required to
adequately protect the parties named as insureds and the limits of liability for
tenants leasing  comparable  amounts of space in comparable  office buildings in
downtown  San  Francisco  are at such  amounts or if  Landlord  is  required  to
implement such increase by Landlord's Lender.
                  (b) Tenant's Self-Insurance.  Tenant (but not any successor or
assignee of Tenant,  without  Landlord's  prior written  consent,  which consent
Landlord may withhold in its sole and absolute  discretion) shall have the right
to  self-insure  for  up  to a  maximum  amount  of  $1,000,000,  including  the
deductible,  any of the  insurance  required to be carried by Tenant  under this
Section  11 if and so long as (i) the net  worth of  Tenant is not less than Two
Hundred  Million Dollars  ($200,000,000),  and (ii) the current assets of Tenant
are not less than Fifty  Million  Dollars  ($50,000,000),  as shown by  Tenant's
separate,  unconsolidated  audited  financial  statements  delivered to Landlord
within  thirty  (30) days  after  written  request  from time to time while such
self-insurance is in effect (which audited financial  statements shall have been
issued not more than fifteen (15) months prior to the applicable date). Whenever
Tenant elects to self-insure  pursuant to this Section 11(b),  Tenant shall, for
all purposes of this Lease  (including  Section  11(a)  above),  be deemed to be
carrying the  insurance  required to be carried by Tenant under this Section 11.
Tenant  shall  notify  Landlord  in writing  when Tenant  elects to  self-insure
pursuant to this  Section  11(b) and, if Tenant  shall have made such  election,
Tenant  shall  notify  Landlord  when  Tenant is not  self-insuring  at any time
thereafter.  In addition,  during any time that Tenant elects to  self-insure as
permitted  hereunder  with  respect to the  liability  insurance  required to be
carried  pursuant  to  Section  11(a)  of  this  Lease,  a  third  party  claims
administrator  shall perform the claims  management  and loss  adjustment of all
claims within the scope of such coverage but for self-insurance.
                  (c) Landlord's Property Insurance. Landlord shall maintain, or
cause to be maintained,  at its cost and expense but subject to reimbursement as
Additional  Charges for  Operating  Expenses  throughout  the Term,  a policy or
policies  of All Risk or  Special  Form  property  insurance  insuring  the full
replacement cost of the Building (exclusive of foundations and excavations).  If
available,  Landlord shall carry earthquake  insurance on the Building,  and the
amount of such  insurance  policy shall be the greater of (i)  Thirteen  Million
Dollars  ($13,000,000.00) or (ii) based on a probable maximum loss as determined
from  time  to  time by a  reputable  structural  engineer  with  experience  in
evaluating seismic risks of high use office building  structures and as selected
by Landlord and reasonably  satisfactory to Tenant (which probable  maximum loss
shall in no event be less  than  18%)  with not less  than a five  percent  (5%)
deductible based on the full replacement cost of the Building.
                  (d) Landlord's Liability Insurance.  Landlord, with respect to
the Premises, at its cost and expense but subject to reimbursement as Additional
Charges  for  Operating  Expenses,  shall  maintain  or cause to be  maintained,
throughout  the Term,  a policy or  policies  of  commercial  general  liability
insurance   with  limits  of  liability  not  less  than  Ten  Million   Dollars
($10,000,000.00)  combined single limit.  Such coverage (i) may be provided by a
combination of commercial general liability and excess umbrella  policies;  (ii)
shall be issued on an occurrence  basis;  (iii) all  insurance  required by this
Section  11 shall be issued  by  companies  having a rating  of A minus  VIII or
better by Best's  Insurance  Guide;  and (iv) may be maintained under a "blanket
policy",  insuring other parties and other locations,  so long as the amount and
coverage required to be provided hereunder is not thereby  diminished.  Landlord
shall provide to Tenant  certificates of insurance  certifying that the policies
contain the provisions  required hereunder.  Landlord's  insurance shall provide
that the insurer agrees not to cancel or materially  amend the policy without at
least thirty (30) days prior written notice to all  additional  insureds or loss
payees.
                  (e) Deductibles.  All deductibles  under policies of insurance
required  to be  carried  by  either  party  under  this  Section  11  shall  be
commercially  reasonable  under the  circumstances,  subject to any  deductibles
specifically set forth in this Section 11.
                  (f)  Waiver;  Subrogation.  To the extent  lawful and  without
adversely  affecting  any insurance  carried by such party,  Landlord and Tenant
each  releases  and waives any right to recover  against the other party for any
liability for any loss or damage to property and any other loss or damage to the
extent of coverage  under any "All Risk" or "Special  Form"  policy of insurance
maintained by such party,  irrespective of any negligent act or omission of such
other party which may have caused such loss or damage in whole or in part.  Each
party  shall  obtain,  for the  benefit of the other  party,  from the  relevant
insurer, if available, a waiver of any right of subrogation which the insurer of
such party may  acquire  against the other party by reason of the payment of any
such loss covered by such insurance.
         12.       Waiver; Indemnity.
                  (a)  Except to the  extent  due to the  negligence  or willful
misconduct  of  Landlord  and except to the extent  otherwise  provided  in this
Lease,  Landlord  shall not be liable to Tenant or Tenant's  agents,  employees,
contractors  and  invitees  (collectively,  "Tenant's  Agents")  for, and Tenant
waives as against and releases  Landlord and Landlord's  Lender from, all claims
for loss or damage to any property or injury, illness or death of any person in,
upon or about the  Premises  and/or any other  portion of the  Building  and the
Project,  arising  at any time and from any  cause  whatsoever,  including  such
claims  caused in whole or in part by the act,  omission,  or  neglect  of other
tenants, contractors,  invitees or other occupants of the Building or Project or
their  agents  or  employees.  The  foregoing  waiver  and  release  extends  to
Landlord's officers, directors, partners, members, employees and agents.
                  (b)  Except to the  extent  due to the  negligence  or willful
misconduct  of Landlord and subject to Section  11(f),  Tenant shall  indemnify,
defend,  protect and hold Landlord harmless of and from any and all loss, liens,
liability, claims, causes of action, damage, injury, cost or expense arising out
of or in connection  with, or related to injury to or death of persons or damage
to property  occurring or resulting  directly or indirectly  from (i) the use or
occupancy of, or any  occurrence in or the conduct of business in, the Premises,
and/or (ii) the negligent acts or omissions of Tenant or any of Tenant's  Agents
in or about any portion of the Project.  Tenant's indemnity  obligation includes
reasonable  attorneys' fees and costs,  reasonable  investigation  costs and all
other  reasonable costs and expenses  incurred by Landlord.  Landlord shall have
the right of reasonable approval of legal counsel proposed by Tenant for defense
of any claim indemnified  against hereunder or under any other provision of this
Lease,  except  that  if such  counsel  is  appointed  by an  insurance  company
providing a defense to Landlord and/or Tenant, then such counsel shall be deemed
approved by Landlord.  The foregoing  indemnification shall extend to Landlord's
officers, directors, partners and members.
                  (c)  Except to the  extent  due to the  negligence  or willful
misconduct of Tenant and subject to Section  11(f),  Landlord  shall  indemnify,
defend,  protect and hold Tenant  harmless of and from any and all loss,  liens,
liability, claims, causes of action, damage, injury, cost or expense arising out
of or in connection  with, or related to injury to or death of persons or damage
to property occurring or resulting directly or indirectly from (i) the negligent
acts or omissions of Landlord, its agents, employees,  contractors and invitees,
in or about the  Premises or any other  portion of the Project and (ii) the use,
generation,  storage,  handling,  release,  transport or disposal by Landlord or
Landlord's  agents,  employees and contractors of any Hazardous  Materials in or
about the  Premises or any other  portion of the Project.  Landlord's  indemnity
obligation   includes   reasonable   attorneys'   fees  and  costs,   reasonable
investigation  costs and all other  reasonable  costs and  expenses  incurred by
Tenant.  Tenant  shall have the right of  reasonable  approval of legal  counsel
proposed by Landlord for defense of any claim  indemnified  against hereunder or
under  any  other  provision  of this  Lease,  except  that if such  counsel  is
appointed by an insurance company providing a defense to Landlord and/or Tenant,
then  such  counsel   shall  be  deemed   approved  by  Tenant.   The  foregoing
indemnification  shall  extend  to  Tenant's  directors,   officers,   partners,
shareholders, members, employees and agents.
                  (d)  Notwithstanding any other provisions in this Lease to the
contrary,  including  without  limitation  Section  5(g),  Section 9(d) and this
Section  12,  Landlord  in no event  shall be liable  for any  consequential  or
incidental damages,  lost profits,  lost business or other economic loss, except
to the extent due to Landlord's gross negligence or willful misconduct.
                  (e) The  provisions  of this  Section  12  shall  survive  the
termination of this Lease with respect to any indemnified  obligations occurring
prior to such termination. The insurance policy or policies required pursuant to
the  provisions  of  Section  11  by  their  terms  shall  cover  the  indemnity
obligations of the parties under this Section 12.
                  (f) As used in this  Lease,  "Landlord's  Lender"  at any time
shall mean any  unaffiliated  holder of a mortgage  or deed of trust on all or a
portion of the Building or any interest therein at such time.
         13.       Compliance With Legal Requirements.
                  (a)  General.  During  the Term of this  Lease,  Tenant,  with
respect to the  Premises,  at its sole cost and expense,  shall comply  promptly
with  (i)  all  laws,  statutes,   regulations,   ordinances,   building  codes,
governmental  rules,  or  requirements  now in force or which may  hereafter and
during  the  Term be in  force,  (ii)  the  requirements  of any  board  of fire
underwriters or other similar body now or hereafter  constituted,  and (iii) any
direction  or  occupancy  certificate  issued  pursuant to any law by any public
officer or officers  (collectively,  "Requirements"),  insofar as any of clauses
(i) through  (iii)  relate to or affect the  condition,  use or occupancy of the
Premises,  excluding  changes,  alterations or improvements  not necessitated by
Alterations  made by or for Tenant  pursuant  to  Section  7. Any such  mandated
changes,   alterations  or  improvements  or  other  work  not  necessitated  by
Alterations  made by or for Tenant shall be performed  and paid for by Landlord,
and the cost thereof  shall be subject to  inclusion as on Operating  Expense to
the extent permitted under clause (xiii) of the definition of Operating  Expense
in Section 3(a) of this Lease.  Notwithstanding the foregoing, Tenant agrees and
acknowledges  that,  during the Term, except with respect to Landlord's Work and
Tenant's Initial Improvements,  for which Landlord shall be responsible to cause
compliance  with respect only to the elevator  lobbies and restrooms  located in
the  Premises,  Tenant shall be  responsible,  at its sole cost and expense,  to
ensure  compliance of the Premises with the Americans with Disabilities Act (the
"ADA")  and with any and all  other  codes,  rules and  regulations,  including,
without  limitation,  those relating to life safety issues.  The judgment of any
court of  competent  jurisdiction  or the  admission  by Tenant in any action or
proceeding  against  Tenant  (whether  Landlord be a party  thereto or not) that
Tenant has  violated  any law,  statute or  governmental  rule,  regulation,  or
requirement,  shall be  conclusive  of such  violation  as between  Landlord and
Tenant.
                  (b)  Landlord's  Compliance.  Notwithstanding  anything to the
contrary  provided in Section 13(a) above,  Landlord shall, at its sole cost and
expense,  perform all work to the Building  (excluding  the Premises) and to the
elevator lobbies and restrooms  located in the Premises required by Requirements
(including  the ADA and those  relating  to life  safety  issues) as a result of
Tenant's  Initial  Improvements or Landlord's  Work, and Landlord shall not pass
such costs to Tenant as  Operating  Expenses  or  otherwise.  Additionally,  and
except to the extent required of Tenant in Section 7 and Section 13(a), Landlord
shall  comply with all  Requirements  relating to the  Building  (excluding  the
Premises) at the time such  compliance is required to be performed to the extent
that such  non-compliance  would adversely  affect Tenant's use and occupancy of
the Premises or preclude Tenant from installing Tenant's Initial Improvements or
from installing any other Alterations; and if Landlord has failed to effect such
compliance at the time Tenant wishes to perform,  or obtain a permit to perform,
any Alterations,  Landlord shall, at its expense, promptly cause the Building to
comply with such  Requirements.  Any costs expended by Landlord pursuant to this
Section  13(b)  shall be subject to  inclusion  as an  Operating  Expense to the
extent  permitted by the terms of Section 3(a). In complying with the ADA or any
other applicable  building codes during the Term,  Landlord shall not reduce the
number of toilet or lavatory fixtures existing on any floor comprising a portion
of the Premises as of the Term  Commencement,  provided that Landlord shall have
the right in such  circumstance  to  enlarge  any  restroom  area to the  extent
reasonably necessary to do so.
                  (c)       Environmental Matters.
                           (i) As used herein,  the  following  items shall have
the following meanings:
                                    "Environmental  Activity"  means any actual,
proposed or threatened use, storage,  treatment,  existence,  release, emission,
discharge, generation,  manufacture, disposal or transportation of any Hazardous
Materials from,  into, on, under or about the Project,  or any other activity or
occurrence that causes or would cause any such event to exist.
                                    "Environmental   Requirements"   means   all
present and future federal,  state,  regional or local laws relating to the use,
storage,  treatment,   existence,  release,  emission,  discharge,   generation,
manufacture, disposal or transportation of any Hazardous Materials.
                                    "Hazardous  Material"  means at any time any
substances  or materials  which at such time are  classified or considered to be
hazardous or toxic under any Environmental Requirement.
                           (ii) Tenant shall not engage in nor knowingly  permit
the occurrence of any  Environmental  Activity  except in the ordinary course of
Tenant's business or the use of customary  cleaning or office materials and only
in  compliance  with  all   Environmental   Requirements  and  prudent  industry
practices.  Tenant shall,  at its own expense,  procure,  maintain in effect and
comply  with  all  conditions  of any  and  all  permits,  licenses,  and  other
governmental  and  regulatory   approvals   required  under  any   Environmental
Requirements  for any  Environmental  Activity  by  Tenant,  including,  without
limitation, the discharge of (appropriately treated) materials or wastes into or
through any sanitary  sewer serving the Premises,  and upon  termination of this
Lease shall cause all of its Hazardous Materials to be removed from the Premises
in  accordance  with  and  in  compliance  with  all  applicable   Environmental
Requirements.
                           (iii) Upon having actual  knowledge  thereof,  Tenant
shall notify Landlord in writing:
                                    (A) promptly of any  regulatory  action that
has been  instituted,  or  threatened by any  governmental  agency or court with
respect to Tenant that relates to any Environmental Activity;
                                    (B)  promptly  of any claim  relating to any
Environmental Activity by Tenant; or
                                    (C)  immediately of any actual or threatened
material  release  on,  under or about the  Project of any  Hazardous  Material,
except any Hazardous  Material whose  discharge or emission is authorized by and
in  compliance  with a permit  issued by a  federal,  state,  regional  or local
governmental agency pursuant to Environmental Requirements.
                          (iv) Tenant shall provide  Landlord with copies of any
communications with federal,  state, regional or local governments,  agencies or
courts with respect to any Environmental  Activity or Environmental  Requirement
relating to the Premises and any communications with any third party relating to
any claim made or  threatened  with  respect to any  Environmental  Activity  by
Tenant in, on or about the Premises.
                          (v) Tenant shall indemnify,  defend, protect, and hold
Landlord,  Landlord's Lender and each of Landlord's members, partners, employees
and agents, free and harmless from and against any and all claims,  liabilities,
penalties,  forfeitures,  losses or expenses  (including  reasonable  attorneys'
fees) arising from or caused in whole or in part, directly or indirectly, by (A)
an Environmental  Activity by Tenant; or (B) Tenant's failure to comply with any
Environmental  Requirement applicable to Tenant or the Premises.  Landlord shall
have the right of reasonable  approval of legal  counsel  proposed by Tenant for
defense of any claim indemnified  against hereunder or under any other provision
of this Lease,  except that if such counsel is appointed by an insurance company
providing a defense to Tenant and/or Landlord, then such counsel shall be deemed
approved  by  Landlord.  Tenant's  obligations  under this  Section  13(c) shall
include,  without  limitation,  all costs of any repair or  cleanup,  removal or
remediation  action,  or detoxification  or  decontamination  of the Building or
Premises, or the preparation and implementation of any closure,  remedial action
or other  plans in  connection  therewith  that are  required as a result of any
Environmental  Activity by Tenant,  and shall survive the  expiration or earlier
termination of the Term of this Lease.
                          (vi)  Landlord  shall not engage in any  Environmental
Activity  in  the  Building  (other  than  an  Environmental  Activity  that  is
customarily undertaken by owners of office buildings similar to the Building and
that are undertaken in accordance  with  Environmental  Requirements)  nor shall
Landlord  authorize or knowingly  permit any tenant in or other  occupant of the
Building or any other person to engage in any Environmental  Activity other than
in compliance with Environmental  Requirements.  Landlord shall, as an Operating
Expense,  procure,  maintain in effect and comply with all conditions of any and
all permits,  licenses, and other governmental and regulatory approvals required
under any Environmental Requirements for any Environmental Activity by Landlord,
including,   without  limitation,   the  discharge  of  (appropriately  treated)
materials or wastes into or through any sanitary sewer serving the Building.
                                    (A) Upon having  actual  knowledge  thereof,
Landlord shall notify Tenant in writing:
                                    (B) promptly of any  regulatory  action that
has been  instituted,  or  threatened by any  governmental  agency or court with
respect to Landlord that relates to any  Environmental  Activity relating to the
Building;
                                    (C)  promptly  of any claim  relating to any
Environmental Activity by Landlord in, on or about the Building; or
                          (vii) immediately of any actual or threatened material
release on, under or about the Building of any  Hazardous  Material,  except any
Hazardous  Material  whose  discharge  or  emission  is  authorized  by  and  in
compliance  with  a  permit  issued  by a  federal,  state,  regional  or  local
governmental agency pursuant to Environmental Requirements.
                          (viii)  Landlord  shall provide  Tenant with copies of
any communications with federal, state, regional or local governments,  agencies
or  courts  with  respect  to  any   Environmental   Activity  or  Environmental
Requirement relating to the Building and any communications with any third party
relating  to any claim made or  threatened  with  respect  to any  Environmental
Activity by Landlord in, on or about the Building.
                          (ix) Landlord shall indemnify,  defend,  protect,  and
hold  Tenant  and each of  Tenant's  partners,  employees  and  agents  free and
harmless  from  and  against  any  and  all  claims,   liabilities,   penalties,
forfeitures,  losses or expenses (including  reasonable  attorneys' fees) to the
extent arising from or caused in whole or in part,  directly or  indirectly,  by
(A) an  Environmental  Activity by Landlord or (B) Landlord's  failure to comply
with any  Environmental  Requirement  applicable  to  Landlord in respect to the
Project.  Tenant shall have the right of  reasonable  approval of legal  counsel
proposed by Landlord for defense of any claim  indemnified  against hereunder or
under  any  other  provision  of this  Lease,  except  that if such  counsel  is
appointed by an insurance company providing a defense to Landlord and/or Tenant,
then such counsel  shall be deemed  approved by Tenant.  Landlord's  obligations
under this Section 13(c) shall  include,  without  limitation,  all costs of any
repair  or  cleanup,   removal  or  remediation  action,  or  detoxification  or
decontamination   of  the  Building  or  Premises,   or  the   preparation   and
implementation  of any  closure,  remedial  action or other plans in  connection
therewith  that  are  required  as a result  of any  Environmental  Activity  by
Landlord, and shall survive the expiration or earlier termination of the Term of
this Lease.
         14.       Assignment And Subletting.
                  (a) Assignment and Subletting.  Except as expressly  permitted
pursuant to this Section, Tenant shall not, without the prior written consent of
Landlord,  which  consent shall not be  unreasonably  withheld,  conditioned  or
delayed,  assign  this  Lease or any  interest  herein (by  operation  of law or
otherwise),  or sublet the  Premises or any part  thereof,  or permit the use or
occupancy of the Premises (or any right or privilege appurtenant thereto) by any
party other than Tenant. Landlord shall consent or refuse to consent (and in the
case of refusal,  Landlord  shall  specify  Landlord's  reason  therefor) to any
proposed assignment or sublease within fifteen (15) business days after Tenant's
delivery of a written  notice  requesting  approval  thereof,  together with the
information  required under Section 14(b) below. If Landlord fails to respond to
any  proposed  assignment  or sublease  within such  fifteen  (15)  business day
period,  Tenant  shall  have the right to deliver  to  Landlord a notice,  which
notice  shall state in capital  letters at the top of such  notice:  "LANDLORD'S
APPROVAL SHALL BE DEEMED TO BE GIVEN IF LANDLORD DOES NOT REFUSE APPROVAL WITHIN
FOUR (4) BUSINESS DAYS AFTER  LANDLORD  RECEIVES THIS  NOTICE",  and  Landlord's
failure to consent or to consent  within said  additional  four (4) business day
period  from  Landlord's  receipt  of such  notice  shall be  deemed  Landlord's
approval  thereof.  For purposes  hereof,  where Tenant is (i) a partnership,  a
limited liability company or a limited liability partnership, "assignment" shall
include a transfer  of more than  fifty  percent  (50%) of the  equity  interest
therein  or (ii) a  corporation  "assignment"  shall  include  any  (A)  merger,
consolidation or other reorganization of Tenant, (B) liquidation, dissolution or
disposition of all or substantially all of the assets of Tenant or (C) change in
ownership  of more than  fifty  percent  (50%) of the  equity  interest  therein
(except with  respect to a  corporation  whose stock is publicly  owned or whose
stock will be issued,  transferred or sold as part of public offering of stock).
Any of the  foregoing  acts without the consent of Landlord,  except as provided
below,  shall be void and, at the option of  Landlord,  shall give  Landlord the
right to terminate  this Lease  unless such act shall be cured.  Notwithstanding
any provision of this Lease to the contrary,  (I) the merger,  consolidation  or
other  reorganization  of Tenant and any  assignment of this Lease in connection
with a sale of all or  substantially  all of Tenant's assets shall not be deemed
to be an assignment of this Lease requiring  Landlord's consent,  provided that,
in  each  of the  foregoing  instances,  Tenant  shall  notify  Landlord  of the
occurrence of any event referred to in the preceding sentence, and Tenant, or in
the  case of a sale of  Tenant's  assets,  Tenant's  assignee,  continues  as an
existing entity with substantially the same net worth as the net worth of Tenant
immediately prior to such transfer,  assignment or subletting, and (II) the sale
or transfer of stock of Tenant shall not be  considered  an  assignment  of this
Lease.

         Notwithstanding  any  provision of this Lease to the  contrary,  Tenant
shall be  permitted,  without  the  consent  of,  but with  written  notice  to,
Landlord,  to assign or sublet  all or any part of the  Premises  to any  entity
controlling,  controlled  by, or under common  control with,  Tenant  (each,  an
"Affiliate").

         Without  limiting the other instances in which it may be reasonable for
Landlord to withhold its consent to an  assignment or  subletting,  Landlord and
Tenant  acknowledge  that it shall be  reasonable  for  Landlord to withhold its
consent to a proposed assignment or subletting in the following instances:

                           (i) in Landlord's reasonable judgment, the use of the
Premises by the proposed  assignee or sublessee  would violate Section 4 of this
Lease;
                           (ii) in Landlord's  reasonable judgment,  in the case
of an  assignment,  the proposed  assignee does not have a net worth of at least
Seventy-Five Million Dollars  ($75,000,000.00),  and, in the case of a sublease,
the  financial  condition of the proposed  subtenant is such that it cannot meet
its obligations as they come due under the proposed sublease;
                           (iii) Landlord has reasonably  demonstrated to Tenant
that the  proposed  assignee or sublessee  has an  unfavorable  reputation  as a
tenant of property;
                           (iv)  Landlord or another  landlord  has  experienced
previous  lease  defaults by, or is then in  litigation  as a landlord and as an
adverse party  against,  the proposed  assignee or sublessee,  and such proposed
assignee or sublessee is a tenant in such litigation; and
                           (v)  if  the  use of  the  Premises  by the  proposed
assignee or subtenant will violate any applicable law,  ordinance or regulation,
or any use permit issued for the use and occupancy of the Premises.
                  (b) Information;  Landlord's  Options. If at any time, or from
time to time,  during the Term, Tenant desires to assign this Lease or sublet or
permit  the  occupancy  or use by  another  of all or any part of the  Premises,
except where otherwise permitted without Landlord's  consent,  Tenant shall give
notice to Landlord setting forth the following:  (i) the name, address, and type
of entity of the proposed assignee, sublessee, occupier or user; (ii) the nature
of the business  proposed to be carried on in the Premises;  (iii) a copy of the
proposed assignment or sublease  agreement;  and (iv) any other documentation or
information  reasonably requested by Landlord,  including financial  information
covering the proposed assignee, sublessee, occupier or user with respect to such
proposed  subletting.  All such  information  may be  considered  by Landlord in
making Landlord's permitted determinations hereunder,  including the granting or
withholding of consent in respect of a proposed assignment or subletting.
                  (c) Assignment or Subletting Conditions.  Subject to the other
provisions of this Section 14, Tenant may assign this Lease or sublet such space
to any third party on the following conditions:
                           (i) In the  case of a  sublease,  the  same  shall be
subject and subordinate to all of the  provisions,  terms and conditions of this
Lease,
                           (ii) No assignment or sublease  shall be valid and no
assignee  or  sublessee  shall  take  possession  of the  Premises  assigned  or
subleased until an executed counterpart of such assignment or sublease,  in form
and substance  satisfactory to Landlord,  shall have been delivered to Landlord,
and Landlord shall have expressly consented thereto in writing,
                           (iii) No assignee or  sublessee  shall have a further
right to assign or sublet,  except with  Landlord's  prior written consent which
shall not be unreasonably withheld,  conditioned or delayed, as provided in this
Section 14,
                           (iv) An amount  equal to fifty  percent  (50%) of all
sums or other economic  consideration actually received by Tenant as a result of
such assignment or subletting to any entity which is not (A) an Affiliate, (B) a
successor by merger,  consolidation,  other reorganization or an assignment to a
person to which Tenant has sold all or substantially  all of Tenant's assets, or
(C) a Business Partner (as hereinafter defined), however denominated (whether as
consideration for the assignment, rentals under a sublease, or otherwise), which
exceed in the aggregate the total sums which Tenant is obligated to pay Landlord
under this Lease,  after deducting Tenant's actual  out-of-pocket  costs of such
assignment or subletting,  including  without  limitation,  Tenant's  reasonable
architectural,  engineering and legal fees, brokerage commissions,  free rent or
other economic  concessions,  construction costs and cost of rent for any actual
construction  period  not  exceeding  sixty (60) days,  and  attorney's  fees of
Landlord  payable  pursuant  to Section  14(e),  and which  total costs shall be
deducted by Tenant and fully  recovered  before  sharing the same with Landlord,
prorated  to reflect  obligations  allocable  to that  portion  of the  Premises
subject  to such  assignment  or  sublease,  shall be  payable  to  Landlord  as
Additional  Charges  under this Lease  without  affecting  or reducing any other
obligations of Tenant hereunder.
                  (d) Primary Liability.  Regardless of Landlord's  consent,  no
subletting or assignment  shall release  Tenant of Tenant's  obligation or alter
the  primary  liability  of Tenant to pay the rental  and to  perform  all other
obligations  to be performed by Tenant  hereunder.  The  acceptance of rental by
Landlord from any other person shall not be deemed to be a waiver by Landlord of
any provision  hereof.  Consent to one  assignment  or  subletting  shall not be
deemed  consent to any  subsequent  assignment  or  subletting.  In the event of
default by any assignees of Tenant or any successor in interest of Tenant in the
performance of any of the terms hereof,  Landlord may proceed  directly  against
Tenant  without the  necessity of exhausting  remedies  against such assignee or
successor.  Landlord  may  consent to  subsequent  assignments  of this Lease or
sublettings  or  amendments  to this Lease  with  assignees  of Tenant,  without
notifying Tenant, or any successor of Tenant, and without obtaining its or their
consent  thereto,  and such action shall not relieve  Tenant of liability  under
this  Lease,  provided  that  Tenant's  liability  under this Lease  shall be no
greater than it would have been but for such amendment.
                  (e)  Attorneys'  Fees.  If Tenant shall request the consent of
Landlord to any  assignment  or  subletting,  then Tenant  shall pay  Landlord's
actual out-of-pocket and reasonable  attorneys' fees incurred in connection with
the review of the assignment or sublease instrument.
                  (f)  Conflicting  Provisions.  The  provisions of this Section
shall  prevail and govern over any  conflicting  provision in any  assignment or
subletting to which  Landlord gives written  consent.  Any  modification  of the
terms of this  Lease as  between  Tenant  and  Sublessee  will not be binding on
Landlord.
                  (g) Brokerage.  Tenant shall save, indemnify and hold Landlord
harmless from any and all claims for real estate  brokerage of persons  claiming
by or through Tenant arising from any assignment or subletting.
                  (h) Use or Occupancy  by  Affiliates  and  Business  Partners.
Notwithstanding  any  provision of this Lease to the  contrary,  Tenant shall be
permitted  from time to time to allow its Affiliates to use or occupy all or any
portion of the Premises without obtaining  Landlord's consent and without notice
to Landlord.  In addition,  Tenant shall be permitted from time to time to allow
entities with whom Tenant has an ongoing contractual relationship with regard to
the conduct by such entity of a portion of Tenant's  financial services business
(each, a "Business Partner", and collectively,  "Business Partners"),  to use or
occupy one or more portions of the Premises,  provided  that,  (i) the aggregate
amount of space in the  Premises to be occupied  by all such  Business  Partners
shall be less than 22,116 rentable square feet, (ii) such  occupancies  shall be
for a period  of time  less  than  one (1) year in  duration  and  (iii)  Tenant
notifies Landlord in advance of each such occupancy,  which notice shall include
the identity of such Business  Partner,  the number of rentable  square feet and
location of the portion of Premises to be occupied by such Business  Partner and
the commencement and duration of such occupancy. In the event that any Affiliate
and/or  Business  Partner shall use or occupy any portion of the Premises,  each
such  Affiliate  and/or  Business  Partner  shall be  subject  to all  terms and
conditions of this Lease, including, without limitation, Section 4 hereof.
         15.       Rules.
                  Landlord  shall have the right to implement  reasonable  rules
and  regulations  for the  Building  and/or the Project at any time during which
Tenant  shall  not be the sole  office  tenant  in the  Building.  In  addition,
Landlord shall have the right to implement  reasonable rules and regulations for
the Building  and/or the Project upon Tenant's  subletting of any portion of the
Premises,  provided  that any such  rules and  regulations  shall be  subject to
Tenant's  approval,  which shall not be  unreasonably  withheld,  conditioned or
delayed.  Tenant  shall  faithfully  observe  and  comply  with  such  rules and
regulations and all reasonable  modifications  thereof and reasonable  additions
thereto  from time to time  promulgated  in writing by  Landlord,  after  notice
thereof given in accordance with Section 33 of this Lease. Landlord shall not be
responsible to Tenant for the  nonperformance by any other tenant or occupant of
the Building of any of said rules and regulations,  provided that Landlord shall
apply,  enact and enforce the rules and regulations in its good faith discretion
and  a   non-discriminating   fashion.   If  there  shall  be  any  conflict  or
inconsistency  between  the  provisions  of this  Lease or any of the  rules and
regulations, the provisions of this Lease shall prevail.
         16.       Entry By Landlord.
                  (a)  Landlord  may  enter  the  Premises   (other  than  areas
reasonably  designated by Tenant in a notice to Landlord as constituting "Secure
Areas")  and common  areas as to which  Tenant has  exclusive  use  pursuant  to
Section  4, at  reasonable  hours  during  normal  business  hours  on at  least
twenty-four (24) hours' prior notice to Tenant (except as otherwise specifically
provided in clause (iv) below or in  emergencies,  in which case Landlord  shall
give  Tenant  such   notice,   if  any,  as  shall  be   reasonable   under  the
circumstances),  to (i) inspect the same (other than Secure Areas), (ii) exhibit
the same (other than Secure Areas) to  prospective  purchasers or lenders of the
Building or Project,  or during the last  eighteen  (18) months of the Term,  to
prospective  tenants,  (iii) determine  whether Tenant is complying with all its
obligations  hereunder,  (iv) with no prior notice,  supply janitor  service and
with  notice for any other  service  required  or  permitted  to be  provided by
Landlord  to Tenant  hereunder,  (v) post  notices of  non-responsibility  where
Tenant has notified  Landlord that, or Landlord  otherwise is aware that, Tenant
will perform work (vi) to the extent  permitted or required by this Lease,  make
repairs in the  Premises  (vii) make  repairs and  improvements  to any Building
Systems,  including  the  installation  of pipes and  conduits in the plenum and
(viii) where it is  impractical  to do so without  entering the  Premises,  make
repairs,  alterations or  improvements to any portion of the Building other than
the  Premises,  provided  that (A) the  entrances to the  Premises  shall not be
blocked thereby or access impaired, (B) Tenant's ability to conduct its business
in the Premises is not unreasonably  impaired or interfered with, and (C) Tenant
shall have the right to have a representative accompany Landlord during any such
entry,  except in case of  emergency,  where notice to Tenant is not  reasonable
under the  circumstances,  or in case of clause (iv)  above.  In addition to the
foregoing, Landlord and third parties leasing space on the roof of Building (and
their respective  contractors) shall have the right to enter the common areas of
the Building  during Tenant's normal business hours (except in case of emergency
in which  case such  entry may be made at any  time)  and upon  compliance  with
Tenant's  reasonable  security  procedures for purposes of access to the roof in
order to install, test, maintain and remove equipment located on the roof.
                  (b) Without limiting the foregoing,  Landlord may, at any time
or from time to time  during  the Term and  subject  to the  provisions  of this
Section 16, perform  substantial  renovation  work in and to the Building or the
Building Systems (which work may include, but need not be limited to, the repair
or  replacement  of the  Building's  exterior  facade,  exterior  window  glass,
elevators,   electrical  systems,  air  conditioning  and  ventilating  systems,
plumbing system,  telecommunications  system, common hallways, or lobby), any of
which work may require access to the same from within the Premises.  If Landlord
needs to shut down a Building System, Landlord shall give Tenant at least thirty
(30)  days'  notice  (other  than in the event of an  emergency,  in which  case
Landlord shall give Tenant such notice, if any, as shall be reasonable under the
circumstances), which notice shall also set forth the estimated duration of such
shutdown.  Tenant  agrees that (i)  Landlord  shall have access to the  Premises
(except Secure Areas) at all reasonable  times during business  hours,  upon not
less than  twenty-four  (24) hours' prior notice,  and otherwise  subject to the
provisions of this Section 16(b),  for the purpose of performing  such work, and
(ii)  except as  otherwise  provided  in this  Lease,  Landlord  shall  incur no
liability to Tenant,  nor shall  Tenant be entitled to any  abatement of rent on
account of any noise,  vibration,  or other  disturbance to Tenant's business at
the Premises  (provided  that (A) the  entrances  to the  Premises  shall not be
blocked  thereby or access  impaired,  and (B)  Tenant's  ability to conduct its
business in the Premises is not  unreasonably  impaired or interfered  with, and
(C) Tenant  shall  have the right to have a  representative  accompany  Landlord
during any such  entry)  which  shall arise out of said access by Landlord or by
the  performance  by  Landlord of the  aforesaid  renovations  at the  Building.
Landlord shall use reasonable efforts (which may include an obligation to employ
labor at overtime  rates) to avoid  disruption to Tenant's  business  during any
such entry upon the Premises by Landlord.  Landlord  shall  promptly  repair any
damage caused by its entry in the Premises and restore the same to the condition
existing immediately preceding Landlord's entry.
                  (c) Subject to Landlord's  compliance  with the  provisions of
Sections  16(a) and (b),  Tenant  hereby  waives any claim for  damages  for any
injury or inconvenience to or interference with Tenant's  business,  any loss of
occupancy  of the  Premises  or any other loss  occasioned  by any such entry or
entries made by Landlord pursuant to any of the foregoing. Landlord shall at all
times have and retain keys with which to unlock all of the doors in, on or about
the Premises,  excluding Tenant's vaults, safes and Secure Areas. Alternatively,
Tenant may use a card key  system on all locks for all of the doors in,  upon or
about the Premises,  provided  that Landlord  shall be provided by Tenant with a
reasonable  number  of card  keys  for  access  consistent  with  the  preceding
sentence.  Landlord shall have the right to use any and all means which Landlord
may deem proper to open any doors in an  emergency  in order to obtain  entry to
the Premises,  and any entry to the Premises obtained by Landlord by any of said
means, or otherwise, shall not under any circumstances be construed or deemed to
be a  forcible  or  unlawful  entry  into or a detainer  of the  Premises  or an
eviction,  actual or constructive,  of Tenant from the Premises,  or any portion
thereof,  provided  that  Landlord  shall use  reasonable  care in entering  the
Premises. Keys and card keys retained by Landlord hereunder shall be used solely
for access to the Premises for any purpose  permitted  under this Section 16 and
for  access  to the  Premises  in  cases  of an  emergency,  including  entry by
Landlord's  security personnel.  Landlord shall establish,  and use commercially
reasonable  efforts  to  enforce,  procedures  to ensure  that any such keys are
maintained  in  the  exclusive  possession  and  control  of  Landlord  and  its
designated  representatives  and are not lost or copied.  When not in use,  keys
retained by Landlord hereunder shall be kept in the office of the chief engineer
of the Building, janitorial supervisor's office and/or fire control center.
                  (d) Any work performed or installations  made pursuant to this
Section 16 shall be made with  reasonable  diligence and  otherwise  pursuant to
Sections 9(b) and (e).
         17.       Events Of Default.
                  The occurrence of any one or more of the following  events (an
"Event of Default")  shall  constitute a breach of this Lease by Tenant:  (a) if
Tenant shall fail to pay any  installment of Base Rent or Additional  Charges on
account of Real Estate Taxes and Operating Expenses when and as the same becomes
due and payable, and such failure shall continue for more than five (5) business
days  following  notice from Landlord to Tenant of such failure  (except that if
Landlord has notified Tenant in writing on two occasions  during the twelve (12)
months  immediately  preceding  the due date that  Tenant  has failed to pay any
installment  of Base Rent or Additional  Charges on account of Real Estate Taxes
and Operating  Expenses on the due date,  then the failure to pay such Base Rent
or Additional  Charges on account of Real Estate Taxes and Operating Expenses on
the due date shall constitute an Event of Default);  or (b) if Tenant shall fail
to pay any other Additional Charges when and as the same becomes due and payable
and such failure shall continue for more than ten (10) days after Landlord shall
have given Tenant written notice of such default; or (c) if Tenant shall default
in the  performance  or observance  of any other term hereof,  and within thirty
(30) days  following  written  notice from  Landlord to Tenant of such  default,
Tenant shall have failed to cure such default,  or if the nature of such default
is such that it cannot  reasonably  be cured  within such 30 day period,  Tenant
shall not within such 30 day period have  commenced  with prompt  diligence  the
curing of such default, or, having so commenced, shall thereafter have failed to
prosecute  with prompt  diligence the curing of such  default;  or (d) if Tenant
shall make a general assignment for the benefit of creditors,  or shall admit in
writing  its  inability  to pay its debts as they  become  due,  or shall file a
petition in bankruptcy,  or shall be adjudicated a bankrupt or as insolvent,  or
shall file a petition in any proceeding seeking any reorganization, arrangement,
composition, readjustment, liquidation, dissolution, or similar relief under any
present  or  future  statute,  law,  or  regulation,  or  shall  file an  answer
admitting,  or fail to protest  timely the  material  allegations  of a petition
filed  against  it in any  such  proceeding,  or  shall  seek or  consent  to or
acquiesce in the appointment of any trustee,  receiver,  or liquidator of Tenant
or any material part of its  properties;  or (e) if within sixty (60) days after
the  commencement of any proceeding  against Tenant seeking any  reorganization,
arrangement,  composition,  readjustment,  liquidation,  dissolution, or similar
relief under any present or future statute, law, or regulation,  such proceeding
shall  not have  been  dismissed,  or if,  within  sixty  (60)  days  after  the
appointment  without  the consent or  acquiescence  of Tenant,  of any  trustee,
receiver,  or liquidator of Tenant or of a substantial  part of its  properties,
such appointment shall not have been vacated; or (f) if this Lease or any estate
of Tenant  hereunder  shall be levied upon under any attachment or execution and
such  attachment  or execution is not vacated  within sixty (60) days; or (g) if
Tenant  shall  abandon  the  Premises  or be  dispossessed  by process of law or
otherwise.
         18.       Landlord's Right To Terminate.
                  If an Event of Default  shall occur,  then, in addition to any
notice required to be given by Landlord  pursuant to Section 17, Landlord at any
time  thereafter  may  give  a  written   termination   notice  to  Tenant  (the
"Termination  Notice"), and on the date specified in such notice (which shall be
not less than ten (10) days after the giving of such notice,  which notice shall
constitute  the notice  required for all statutory  purposes)  Tenant's right to
possession  shall  terminate,  unless on or before such date all delinquent rent
and all other sums payable by Tenant under this Lease and all costs and expenses
incurred  by or on behalf of Landlord  hereunder  shall have been paid by Tenant
and all other  breaches of this Lease by Tenant at the time existing  shall have
been fully  remedied to the  satisfaction  of Landlord.  Landlord may remove all
persons and property located therein and hold,  administer and dispose of any or
all of such properties in accordance with applicable  California law,  including
California  Civil  Code  Section  1980  et seq.  and  California  Code of  Civil
Procedure  Section 1174.  Landlord may do all things Landlord deems necessary in
order to relet the Premises,  including,  without  limitation  any  alterations,
repair and/or restoration of the Premises.  Upon such termination,  Landlord may
recover  from  Tenant:  (a) the worth at the time of award of the unpaid  rental
which had been earned at the time of  termination;  (b) the worth at the time of
award of the  amount by which the unpaid  rental  which  would have been  earned
after termination until the time of award exceeds the amount of such rental loss
that Tenant proves could have been reasonably avoided; (c) the worth at the time
of award of the amount by which the unpaid rental for the balance of the Term of
this Lease  after the time of award  exceeds the amount of such rental loss that
Tenant proves could be reasonably avoided; and (d) any other amount necessary to
compensate Landlord for all the detriment proximately caused by Tenant's failure
to perform its  obligations  under this Lease or which in the ordinary course of
things would be likely to result therefrom.  The "worth at the time of award" of
the  amounts  referred  to in clauses  (a) and (b) above is computed by allowing
interest at the highest rate legally  permitted under applicable law. The "worth
at the time of award" of the amount  referred to in clause (c) above is computed
by discounting  such amount at the discount rate of the Federal  Reserve Bank of
San  Francisco at the time of award plus one percent (1%).  Notwithstanding  any
other provisions  hereof,  any efforts by Landlord to mitigate damages caused by
Tenant's breach of this Lease shall not constitute a waiver of Landlord's  right
to recover  damages  hereunder  and shall not affect  the right of  Landlord  to
indemnification pursuant to the provisions of Section 12 hereof.
         19.       Continuation Notwithstanding Default.
                  In the event that Tenant  breaches this Lease and abandons the
Premises,  this Lease shall  continue in effect for so long as Landlord does not
terminate Tenant's right to possession,  and Landlord may enforce all its rights
and remedies  under this Lease,  including the right to recover the rental as it
becomes  due under  this  Lease.  Landlord's  remedies  shall  include,  without
limitation,  the  remedy  described  in  California  Civil Code  Section  1951.4
(Landlord may continue the Lease in effect after Tenant's breach and abandonment
and recover rent as it becomes due, if Tenant has the right to sublet or assign,
subject only to reasonable limitations).  Acts of maintenance or preservation or
efforts  to  relet  the  Premises  or the  appointment  of a  receiver  upon the
initiative of Landlord to protect Landlord's interest under this Lease shall not
constitute a termination of Tenant's right to possession.
         20.       Additional Remedies.
                  The remedies provided for in this Lease are in addition to any
other  remedies  available  to  Landlord  at  law or in  equity  by  statute  or
otherwise.
         21.       Landlord's Right To Cure Defaults.
                  Except as otherwise  provided under this Lease, all agreements
and  provisions  to be  performed by Tenant under any of the terms of this Lease
shall be at its sole cost and expense and without any  abatement  of rental.  If
Tenant shall fail to pay any sum of money  required to be paid by it  hereunder,
other than Base Rent and Additional  Charges for Real Estate Taxes and Operating
Expenses,  or shall  fail to perform  any other act on its part to be  performed
hereunder  and such failure  shall  continue for a period of ten (10) days after
notice  thereof by  Landlord  (except in the event of a default  which  Landlord
reasonably  determines to pose a risk of imminent harm to person or property, in
which event Landlord shall have the right to act immediately), Landlord may, but
shall not be  obligated to do so, and without  waiving or releasing  Tenant from
any  obligations of Tenant,  make any such payment or perform any such other act
on Tenant's part to be made or performed as in this Lease provided.  All sums so
paid by Landlord and all necessary  incidental costs shall be deemed  Additional
Charges  hereunder  and shall be payable to  Landlord  within  thirty  (30) days
following  Landlord's  demand therefor,  and Landlord shall have (in addition to
any other right or remedy of Landlord) the same rights and remedies in the event
of the  nonpayment  thereof by Tenant as in the case of default by Tenant in the
payment of Base Rent.
         22.       Litigation Expenses.
                  If either party brings any legal action or proceeding  against
the other (including any cross-complaint,  counterclaim or third party claim) to
enforce or  interpret  this Lease or  otherwise  arising out of this Lease,  the
prevailing party in such action or proceeding shall be entitled to its costs and
expenses of suit and enforcing the judgment awarded to it, including  reasonable
attorneys' fees.
         23.       Eminent Domain.
                  If any part of the Premises  shall be taken as a result of the
exercise of the power of eminent  domain,  this Lease shall  terminate as to the
part of the Premises so taken as of the date of taking,  and either  Landlord or
Tenant  shall have the right to  terminate  this Lease as to the  balance of the
Premises  remaining after a partial taking by written notice to the other within
sixty (60) days after such date,  provided,  however,  that a  condition  to the
exercise by Tenant of such right to terminate  shall be that such partial taking
shall be to such extent and nature as to substantially and permanently handicap,
impede,  or impair  the  conduct of  Tenant's  business  therein.  If all of the
Premises are taken as a result of the  exercise of the power of eminent  domain,
this Lease shall terminate upon the date of taking.  If any part of the Building
(other  than the  Premises)  shall be taken as a result of the  exercise  of the
power of eminent domain, which renders the operation of the remaining portion of
the  Building  economically  infeasible,   as  determined  by  Landlord  in  its
reasonable discretion,  Landlord shall have the right to terminate this Lease by
written  notice to Tenant  within thirty (30) days from the date of such taking;
in the event that Landlord does not so elect,  this Lease shall continue in full
force and effect,  provided  that Tenant is  afforded  continuous  access to the
Premises.  Landlord  agrees to refund  to  Tenant  any Base Rent and  Additional
Charges for Real Estate Taxes and  Operating  Expenses  previously  paid for any
period of time subsequent to such date of  termination.  Tenant agrees to pay to
Landlord any Base Rent and Additional Charges accrued and unpaid as of such date
of termination.
         Landlord  shall  be  entitled  to any  and all  compensation,  damages,
income,  rent,  awards, or any interest therein  whatsoever which may be paid or
made in connection with any exercise of the power of eminent domain,  and Tenant
shall have no claim against Landlord for the value of any unexpired term of this
Lease or otherwise,  except that Tenant shall be entitled to any separate  award
made in  favor  of  Tenant  covering  Tenant's  trade  fixtures  and  relocation
expenses. In the event of a partial taking of the Premises which does not result
in a  termination  of this  Lease,  the Base  Rent and  Additional  Charges  for
Operating  Expenses and Real Estate Taxes  thereafter  to be paid shall abate in
proportion  to that  portion  of the  Premises  that is taken as a result of the
exercise of the power of eminent domain,  and Landlord,  at Landlord's  expense,
shall  undertake such  improvements  in and about the Premises so as to make any
affected portion of the Premises a self-contained unit.
         It is  understood  and agreed  that the  foregoing  provisions  of this
Section are intended to and do fully define and set forth the respective  rights
and  obligations  of the  parties in the event of a taking of the  Premises or a
part thereof,  including without  limitation the circumstances  under which this
Lease shall or may be  terminated,  and the  disposition  of any proceeds of any
insurance or award,  and Landlord and Tenant each  expressly  waives the benefit
and effect of any rights and/or obligations  whether purporting to arise by law,
by governmental order, under any insurance contract, or otherwise (including the
provisions of the California  Code of Civil  Procedure  ss.1265.130),  which are
inconsistent with the rights and obligations set forth herein.
         For purposes hereof the "date of taking" shall be deemed to be the date
that physical  possession of the property  taken is delivered to the  condemning
authority.
         24.       Subordination.
                  Concurrent  with the  execution  of this Lease,  Landlord  and
Tenant shall execute,  acknowledge and deliver a subordination,  non-disturbance
and attornment  agreement in the form attached hereto as Exhibit J (the "SNDA"),
and, in the event that Landlord's Lender has not executed and delivered the SNDA
on or before such date, Landlord shall use its reasonable efforts to obtain from
Landlord's  Lender  as  soon  as  possible  thereafter  the  SNDA  executed  and
acknowledged  by Landlord's  Lender.  In the event  Landlord fails to deliver to
Tenant  an  original  counterpart  of the  SNDA  executed  and  acknowledged  by
Landlord's Lender within fifteen (15) days after the date of this Lease,  Tenant
shall have the option to  terminate  this Lease by and  effective  upon five (5)
business days' written notice  delivered to Landlord,  provided that if Landlord
delivers to Tenant such SNDA  executed and  acknowledged  by  Landlord's  Lender
prior to the  expiration  of such five (5) business  day period,  such notice of
termination shall be void and of no further force or effect and this Lease shall
continue in effect, subject to the terms and conditions hereof.
         Subject to the foregoing,  this Lease shall be subject and  subordinate
at all times to (i) all  ground or  underlying  leases  which may  hereafter  be
executed affecting the Building and (ii) the liens of all mortgages and deeds of
trust  hereafter  placed on or against the Building or on or against  Landlord's
interest  or estate  therein  or on or  against  all such  ground or  underlying
leases, all without the necessity of having further instruments  executed on the
part of Tenant to effect such subordination;  provided,  however,  that any such
future subordination of this Lease shall be conditioned upon concurrent delivery
to Tenant of a subordination,  non-disturbance and attornment  agreement on such
future lender's or ground lessor's  standard form, which Tenant hereby covenants
to  execute  as  long as such  agreement  contains  terms  consistent  with  the
provisions of the SNDA and is otherwise  consistent with then customary industry
and   commercially   reasonable   practices  of   institutional   encumbrancers.
Notwithstanding  the foregoing,  any such lender or ground lessor shall have the
right by written notice to Tenant, to subordinate its deed of trust, mortgage or
ground lease,  as applicable,  to this Lease,  and upon such notice,  this Lease
shall be deemed prior to such deed of trust,  mortgage or ground  lease.  Tenant
agrees to execute and deliver  upon demand such further  instruments  evidencing
such subordination of this Lease to such ground or underlying leases, and to the
liens of any such  mortgages or deeds of trust,  as may be requested by Landlord
and/or in such form as is  reasonably  required by such future lessor or lender,
respectively  (including  provisions  waiving as against  lender  claims of, and
giving to lender notice of and the right to cure,  Landlord  defaults  under the
Lease).
         Landlord  authorizes  Tenant to comply with any notice from  Landlord's
Lender  directing  Tenant to forward all future  rents and other sums payable by
Tenant  under  the  Lease to such  address  specified  in any such  notice  from
Landlord's  Lender.  In no event shall Tenant be charged by Landlord  for, or be
required  by  Landlord  to incur any  costs  for,  or in  connection  with,  the
execution or delivery of any SNDA (except for Tenant's own legal expenses),  and
Landlord  shall  not pass  through  as an  Operating  Expense  any cost  paid or
incurred by Landlord in connection therewith.
         Landlord  warrants and  represents  that as of the date  hereof,  there
exist no liens or  encumbrances  on the  Building,  the Project or the  Premises
superior to this Lease (other than liens for Real Estate  Taxes) and the lien of
a deed of trust in favor of Universal  American  Mortgage Company of California,
which if enforced or foreclosed would result in the termination of this Lease.
         25.       No Merger.
                  The voluntary or other surrender of this Lease by Tenant, or a
mutual  cancellation  thereof,  shall not work a merger,  and,  at the option of
Landlord, either shall operate (a) to terminate all or any existing subleases or
subtenancies  under the Lease or (b) as an  assignment to Landlord of any or all
such subleases and subtenancies.
         26.       Sale.
                  If the original Landlord hereunder,  or any successor owner of
the Building, shall sell or convey the Building, all liabilities and obligations
on the part of the original Landlord,  or such successor owner, under this Lease
accruing  thereafter  shall  terminate,  provided that the transferee shall have
assumed all liabilities and obligations  thereafter accruing,  and thereupon all
such  liabilities  and obligations  shall be binding upon the new owner.  Tenant
agrees to attorn to such new owner.
         27.       Estoppel Certificates.
                  (a) Tenant shall execute, acknowledge and deliver to Landlord,
within ten (10)  business  days  following  request by Landlord,  a  certificate
certifying (i) that this Lease is unmodified and in full force and effect (or if
there  have been  modifications,  that this Lease is in full force and effect as
modified and stating the date and nature of each  modification),  (ii) the date,
if any, to which rental and other sums payable  hereunder have been paid,  (iii)
that no notice has been  received  by Tenant of any  default  which has not been
cured,  except as to defaults  specified in said certificate and (iv) such other
matters as may be  reasonably  requested by Landlord or Landlord's  Lender.  Any
such certificate may be relied upon by any prospective purchaser,  mortgagee, or
beneficiary under any deed of trust on the Building or any part thereof.
                  (b) Landlord shall execute, acknowledge and deliver to Tenant,
within  ten (10)  business  days  following  request  by  Tenant  a  certificate
certifying (i) that this Lease is unmodified and in full force and effect (or if
there  have been  modifications,  that this Lease is in full force and effect as
modified and stating the date and nature of each  modification),  (ii) the date,
if any, to which rental and other sums payable  hereunder have been paid,  (iii)
that no notice has been  received by Landlord of any default  which has not been
cured,  except as to defaults  specified in said certificate and (iv) such other
matters  as may be  reasonably  requested  by Tenant  or  Tenant's  assignee  or
sublessee.  Any such certificate may be relied upon by any prospective  assignee
of this Lease or sublessee of all or a portion of the Premises.
         28.       No Light, Air, Or View Easement.
                  Any  diminution  or  shutting  off of light air or view by any
structure which may be erected on lands adjacent to the Building shall in no way
affect this Lease or impose any  liability on Landlord,  provided  that Landlord
shall not cause the  construction of any building in the Project which will shut
off light or air to, or view from, the Building.
         29.       Holding Over.
                  (a) General.  If, without objection by Landlord,  Tenant holds
possession of any portion of the Premises  after  expiration of the Term of this
Lease,  Tenant  shall  become a tenant  from  month  to  month  upon the  terms,
conditions and provisions herein specified but at a monthly rental equivalent to
one hundred and  twenty-five  percent (125%) of the then  prevailing fair market
month-to-month  rental for the Premises as reasonably determined by Landlord but
in no event  less  than  the Base  Rent and  Additional  Charges  for  Operating
Expenses  and Real  Estate  Taxes  being paid by Tenant in the last month of the
Term of this Lease, payable in advance on or before the first day of each month.
                  (b) Single Floor or Contiguous Floors. Notwithstanding Section
29(a) above,  in the event that Tenant shall hold  possession  of (i) all or any
portion of a single floor of the Premises or (ii) all or any portion of a number
of  contiguous  floors of the  Premises,  then Tenant shall become a tenant from
month to month,  with respect only to such single floor or contiguous  floors of
the Premises  (and not the entire  Premises),  as the case may be, on the terms,
conditions and provisions herein specified but at a monthly rental equivalent to
one hundred and  twenty-five  percent (125%) of the then  prevailing fair market
month-to-month  rental for such floor or contiguous  floors, as the case may be,
of the Premises as  reasonably  determined by Landlord but in no event less than
the Base Rent and  Additional  Charges for  Operating  Expenses  and Real Estate
Taxes  being paid by Tenant in the last month of the Term of this Lease for such
floor or  contiguous  floors of the  Premises,  as the case may be,  payable  in
advance on or before  the first day of each  month.  Each  party  shall give the
other notice at least one month prior to the date of termination of such monthly
tenancy of its intention to terminate such tenancy.
         30.       Abandonment.
                  If Tenant shall vacate, abandon, or surrender the Premises, or
be dispossessed by process of law or otherwise,  any personal property belonging
to Tenant  and left on the  Premises  shall be deemed  to be  abandoned,  at the
option of Landlord, except such property as may be mortgaged to Landlord.
         31.       Surrender.
                  Tenant  shall  at the  end of the  Term  hereof  surrender  to
Landlord the Premises and all alterations, additions and improvements thereto in
good order and condition, ordinary wear and tear and damage by fire, earthquake,
other  casualty,  act of God, or the elements  excepted.  Subject to  Landlord's
right to  require  removal  pursuant  to  Section  7  hereto,  all  improvements
installed in the Premises by Tenant, shall, without compensation to Tenant, then
become  Landlord's  property  free and clear of all claims to or against them by
Tenant or any third person claiming through Tenant,  and Tenant shall defend and
indemnify Landlord against all liability and loss arising from such claims.
         In the event  that  Tenant at any time shall  lease a portion,  but not
all, of the Premises for any reason, including, without limitation,  pursuant to
Section 2(a), Section 10(g), Section 23, Section 29 or Section 36, Tenant agrees
to execute, within ten (10) business days of the expiration or other termination
of the Lease with respect to any floor or floors of the  Premises,  an amendment
to  this  Lease  in a  form  reasonably  satisfactory  to  Landlord  and  Tenant
relinquishing  Tenant's  exclusive  access to any common areas of the  Building,
including, without limitation,  elevators, as well as Tenant's rights to install
and maintain Building security systems pursuant to Section 39 (other than in the
Premises).
         32.       Waiver.
                  The waiver by either party of any term, agreement,  condition,
or  provision  herein  contained  shall  not be  deemed  to be a  waiver  of any
subsequent  breach  of the same or any  other  term,  agreement,  condition,  or
provision  herein  contained,  nor shall any custom or  practice  which may grow
between the parties in the  administration  of the terms  hereof be construed to
waive or to lessen the right of such party to insist upon the performance by the
other party in strict  accordance with said terms. The subsequent  acceptance of
Base Rent or Additional  Charges hereunder by Landlord shall not be deemed to be
a waiver of any preceding breach by Tenant of any term, agreement, condition, or
provision of this Lease,  other than the failure of Tenant to pay the particular
Base Rent or Additional Charges so accepted,  regardless of Landlord's knowledge
of such  preceding  breach  at the  time of  acceptance  of  such  Base  Rent or
Additional Charges.
         33.       Notice.
                  All notices and demands  provided in this Lease to be given or
made or sent,  or which  may be  given or made or sent by one  party to  another
party,  and all other writings to be given or made or which may be given or made
by one party to the other, shall be given by hand delivery,  reputable overnight
courier or United States mail, registered or certified,  postage prepaid, return
receipt  required,  and addressed to such party at the address  specified in the
Basic Lease  Information,  or to such other place as such party may from time to
time  designate  in a notice to the other party or parties.  Any notice given in
accordance  with this  Section  33 shall be deemed to have been given (a) on the
date of hand  delivery  if sent by hand  delivery  or (b) on the date of  actual
delivery (or refusal thereof),  as shown on the return receipt or other delivery
record if sent by any other means permitted  hereunder.  Landlord shall have the
right to serve any and all dispossessory or distraint proceedings and notices in
any manner permitted by law.
         34.       Complete Agreement.
                  There  are no oral  agreements  between  Landlord  and  Tenant
affecting this Lease, and this Lease supersedes and cancels any and all previous
negotiations,  arrangements,  brochures, agreements, and understandings, if any,
between  Landlord  and Tenant or displayed by Landlord to Tenant with respect to
the subject matter of this Lease. There are no representations  between Landlord
and Tenant  other than those  contained  in this Lease,  and all  reliance  with
respect to any representations is solely upon such representations.
         35.       Corporate Authority.
                  (a) If  Tenant  signs as a  corporation,  each of the  persons
executing  this Lease on behalf of Tenant does hereby  covenant and warrant that
Tenant is a duly  authorized  and existing  corporation,  that Tenant has and is
qualified to do business in California,  that the corporation has full right and
authority to enter into this Lease, and that the person(s)  signing on behalf of
the corporation were authorized to do so. Upon Landlord's request,  Tenant shall
provide Landlord with evidence  reasonably  satisfactory to Landlord  confirming
the foregoing covenants and warranties.
                  (b) Each  person  executing  this Lease on behalf of  Landlord
does hereby covenant and warrant that Landlord is a duly authorized and existing
limited liability company,  that Landlord has and is qualified to do business in
California, that Landlord has full right and authority to enter into this Lease,
and that such person  signing on behalf of Landlord is authorized to do so. Upon
Tenant's  request,  Landlord  shall  provide  Tenant  with  evidence  reasonably
satisfactory to Tenant confirming the foregoing covenants and warranties.
         36.       Options to Extend.
                  Tenant shall have the option to extend this Lease with respect
to all or a portion of the Premises for two additional  consecutive terms (each,
an "Extension Period"), in accordance with the terms of this Section 36.
                  (a)  First  Extension  Options.  Upon  the  expiration  of the
initial Term of this Lease,  Tenant  shall have the right to exercise  either of
the following extension options (collectively, the "First Extension Options"):
                           (i) Tenant shall have the option to extend this Lease
with respect the entire Premises, for a term commencing May 1, 2018 and ending
                                    (A) with  respect  to floors  three  through
seven of the Building and that  designated  portion of the Garage being shown as
"Area A" on Exhibit K, on April 30, 2023;
                                    (B) with  respect  to floors  eight  through
twelve of the Building and that designated  portion of the Garage being shown as
"Area B" on Exhibit K, on April 30, 2024;
                                    (C) with  respect to floors two and thirteen
through the Penthouse of the Building,  the Crossover  Space and that designated
portion of the Garage  being shown as "Area C" on Exhibit K, on April 30,  2025;
and otherwise  upon the same terms and  conditions as this Lease except for Base
Rent (the "Entire Premises Extension Option"); or
                           (ii)  Tenant  shall  have the  option to extend  this
Lease with respect to either (A) floors two through eight of the Building or (B)
floors two through nine of the  Building,  in either case for a term  commencing
May 1, 2018 and ending on April 30, 2025,  and otherwise upon the same terms and
conditions as this Lease except for Base Rent (the "Partial  Premises  Extension
Option").  In the event that Tenant  exercises  the Partial  Premises  Extension
Option,  Tenant  shall  have the  additional  option to extend  this  Lease with
respect to those  portions of the Garage and/or  Crossover  Space being shown as
the "Garage Premises" and "Crossover Premises",  respectively, on Exhibit L, for
a term  commencing  May 1, 2018 and ending on April 30, 2025, and otherwise upon
the same terms and conditions as this Lease except for Base Rent.
                  (b) Second Extension Options.  Provided that Tenant shall have
exercised  either of the First  Extension  Options,  upon the  expiration of the
first  Extension  Period,  Tenant shall have the right to exercise either of the
following  additional  extension  options  (collectively,  the "Second Extension
Options"):
                           (i) If Tenant  shall have  previously  exercised  the
Entire Premises Extension Option, then Tenant shall have the right:
                                    (A)  to  further   extend  this  Lease  with
respect to the entire  Premises  for a Term  commencing,  as to each  respective
floor of the Premises,  on the date  immediately  following the final day of the
first Extension  Period with respect to such floor, and ending on the date seven
(7) years from such date,  and otherwise  upon the same terms and  conditions as
this Lease except for Base Rent; or
                                    (B)  to  further   extend  this  Lease  with
respect to either (I) floors two  through  eight of the  Building or (II) floors
two through nine of the Building,  in either case for a Term  commencing,  as to
each respective  floor of the Premises,  on the date  immediately  following the
final day of the first Extension  Period with respect to such floor,  and ending
on April 30, 2032,  and  otherwise  upon the same terms and  conditions  as this
Lease except for Base Rent. In the event that Tenant further  extends this Lease
as set forth in this  Section  36(b)(i)(B),  Tenant  shall  have the  additional
option to extend this Lease with respect to those  portions of the Garage and/or
Crossover Space being shown as the "Garage  Premises" and "Crossover  Premises",
respectively,  on Exhibit L, for a term  coterminous with the term of the Second
Extension  Option  being  exercised  pursuant to this Section  36(b)(i)(B),  and
otherwise upon the same terms and conditions as this Lease except for Base Rent.
                           (ii) If Tenant shall have  previously  exercised  the
Partial Premises  Extension Option,  then Tenant shall have the right to further
extend  this Lease with  respect to the same such  floors of the  Building  with
respect to which Tenant shall have  previously  exercised  the Partial  Premises
Extension  Option,  for a term  commencing  May 1, 2025 and  ending on April 30,
2032,  and otherwise upon the same terms and conditions as this Lease except for
Base Rent. In addition, in the event that Tenant shall have previously exercised
its option to extend this Lease with  respect to a portion of the Garage  and/or
to a portion of the  Crossover  Space in  connection  with its  exercise  of the
Partial Premises  Extension Option,  then Tenant shall have the right to further
extend this Lease with respect to the same such portion or portions, as the case
may be, of the  Premises for a term  commencing  May 1, 2025 and ending on April
30, 2032,  and otherwise upon the same terms and conditions as this Lease except
for Base Rent.
                  (c) Conditions. Notwithstanding any of the foregoing, Tenant's
right to exercise any of the Extension Options shall be subject to the following
conditions:
                           (i) At the time of  exercising  each  such  Extension
Option,  Tenant shall  occupy,  and shall not have  assigned or sublet more than
one-half of the aggregate rentable area then constituting the Premises.
                           (ii) Each Extension Option shall be exercised,  if at
all,  by written  notice of  exercise  given to Landlord by Tenant not more than
thirty-six  (36)  months  nor  less  than  eighteen  (18)  months  prior  to the
expiration date of this Lease, as extended, if applicable.  Such notice, once so
given,  shall not be withdrawn or rescinded by Tenant.  Tenant hereby  expressly
acknowledges  and agrees that time is of the  essence for  purposes of notice of
exercise  of such  option  and that  Tenant's  failure  to do so within the time
period set forth  above  will  relieve  Landlord  of any  obligation  under this
Section 36.
                           (iii)    Anything     herein    to    the    contrary
notwithstanding,  if, on the date Tenant exercises the Extension Option,  (a) an
Event of Default shall have occurred and be continuing under this Lease, (b) any
monetary default not constituting an Event of Default exists under the Lease, or
(c) Tenant shall have made a general  assignment  for the benefit of  creditors,
shall have  admitted  in writing its  inability  to pay its debts as they become
due, shall have filed a petition in bankruptcy,  or been  adjudicated a bankrupt
or as  insolvent,  shall  have filed or had filed  against it a petition  in any
proceeding seeking any reorganization,  arrangement, composition,  readjustment,
liquidation, dissolution, or similar relief under any present or future statute,
law, or  regulation,  or shall have sought or suffered  the  appointment  of any
trustee,  receiver,  or  liquidator  of  Tenant  or  any  material  part  of its
properties,  or this  Lease or any  estate of Tenant  hereunder  shall have been
levied upon under any  attachment  or execution,  then  Landlord  shall have, in
addition to all of Landlord's other rights and remedies  provided in this Lease,
the right to  terminate  such  Extension  Option  upon notice to Tenant and this
Lease  shall  thereafter  terminate  in  accordance  with  its  terms as if such
Extension  Option  were never  exercised,  provided,  that,  in the event that a
monetary default not constituting an Event of Default by Tenant exists under the
Lease at the time Tenant  exercises  the  Extension  Option,  Landlord  shall so
notify Tenant within ten (10) days of receiving  Tenant's  notice of exercise of
such Extension  Option that Landlord is terminating  such Extension  Option.  If
Landlord  fails to so notify  Tenant,  then Tenant's  Extension  Option shall be
valid and  effective  notwithstanding  that Tenant was in  monetary  default not
constituting an Event of Default on the date of exercising the Extension Option.
Nothing in this Section  36(c)(iii)  shall preclude  Tenant from  exercising its
Extension  Option  after  Tenant  cures a default  under clause (b) of the first
sentence hereof if the conditions set forth in Section 36(c)(ii) are satisfied.
                           (iv) The  Base  Rent  payable  during  any  Extension
Period  shall be an amount equal to the greater of the Base Rent payable for the
last month of the Term of the Lease  immediately  preceding the  commencement of
such Extension  Period or one hundred  percent  (100%) of the Prevailing  Market
Rent (as  hereinafter  defined),  which  greater  amount  shall be prorated on a
rentable  square foot basis as necessary in the event that the Extension  Option
shall be  exercised  with  respect to a portion,  but not all, of the  Premises.
"Prevailing  Market Rent" shall mean such net rents as constitute the prevailing
net rents agreed to be paid generally by new and renewing tenants, which tenants
are strong credit tenants which occupy a minimum of 100,000 square feet in other
comparable  buildings in the south of Market  Street,  San  Francisco  financial
district  (collectively,  "Comparable  Tenants"),  for comparable  space and for
comparable terms pursuant to new leases entered into by such other tenants on or
about the  commencement  of the  relevant  Extension  Period.  Determination  of
Prevailing  Market Rent shall take into  consideration all relevant lease terms,
effective  rental rates,  the  Additional  Charges for Real Estate and Operating
Expenses  being paid by Tenant at the  commencement  of the  relevant  Extension
Period,  building  identification and signage,  any tenant concessions (any such
concessions  to  include,  without  limitation,  free rent,  tenant  improvement
allowances,  construction  time,  leasing  commissions paid to tenants' brokers,
lease  assumptions  and  relocation  allowances),  location of floors within the
Building in the case of a partial  exercise,  and other  economic  factors being
obtained  by such other  Comparable  Tenants.  In the event that the  prevailing
market  for  leases to  Comparable  Tenants  includes  any  tenant  concessions,
Landlord shall either make  comparable  concessions to Tenant or reduce Tenant's
Base Rent by the amount required to fully amortize the aggregate  amount of such
concessions  over the term of the relevant  Extension  Period at Landlord's then
cost of funds  (or,  in the event  that  Landlord  does not  borrow  funds,  the
Effective Rate).
                           (v)  The  parties  shall  attempt  in good  faith  to
mutually  determine  Prevailing  Market Rent for the purposes of determining the
Base Rent payable during an Extension  Period.  If they do so, such rental as so
determined shall be the rental for such Extension  Period. If they are unable to
do so within  thirty (30) days after  Landlord's  receipt of Tenant's  notice of
exercise of any  Extension  Option,  either party hereto shall have the right to
elect to arbitrate the  determination  of  Prevailing  Market Rent in accordance
with the terms set forth in this Section 36. To the extent that  arbitration has
not been  completed  prior to the  expiration of any preceding  period for which
Base Rent has been  determined,  Tenant  shall  continue to pay Base Rent at the
rate in  effect  immediately  prior  to  such  expiration,  with an  appropriate
adjustment  being made once Prevailing  Market Rent is ultimately  determined by
arbitration.
                           (vi) In the event of arbitration, the judgment or the
award  rendered  in any such  arbitration  may be  entered  in any court  having
jurisdiction and shall be final and binding between the parties. The arbitration
shall be conducted  and  determined  in the City and County of San  Francisco in
accordance  with  the  then  prevailing   rules  of  the  American   Arbitration
Association or its successor for  arbitration of commercial  disputes  except to
the extent that the procedures mandated by said rules shall be modified herein.
                           (vii) The party making demand for  arbitration  shall
do so in writing,  specifying  in such demand the name and address of the person
to act as the arbitrator on its behalf.  The arbitrator  shall be qualified as a
real estate  appraiser  familiar with the Prevailing  Market Rent of first-class
commercial office space in the south of Market Street,  San Francisco  financial
district  area who would  qualify as an expert  witness  over  objection to give
opinion testimony  addressed to the issue in a court of competent  jurisdiction.
Within  fifteen (15) days after the service of the demand for  arbitration,  the
non-demanding  party shall give notice to such demanding  party,  specifying the
name and address of the person designated by the  non-demanding  party to act as
arbitrator on its behalf who shall be similarly qualified.  If the non-demanding
party  shall  fail to  notify  the  demanding  party of the  appointment  of its
arbitrator, within or by the time above specified, then the arbitrator appointed
by the demanding party shall be the arbitrator to determine the issue.
                           (viii) In the event that two  arbitrators  are chosen
as set forth above,  the  arbitrators so chosen shall,  within fifteen (15) days
after the second arbitrator is appointed  appoint a third arbitrator,  who shall
be a  competent  and  impartial  person  with  qualifications  similar  to those
required  of the first two  arbitrators.  In the event  they are unable to agree
upon such  appointment  within seven (7) days after  expiration  of said fifteen
(15) day period,  the third  arbitrator  shall be selected by the then Presiding
Judge of the Superior Court of the State of California, having jurisdiction over
the City and County of San Francisco.
                           (ix)  The  issue  shall  be  resolved  by  the  three
arbitrators  within fifteen (15) days of the appointment of the third arbitrator
in accordance with the following  procedure.  The arbitrator selected by each of
the parties shall state in writing his or her  determination  of the  Prevailing
Market Rent supported by the reasons  therefor with  counterpart  copies to each
party.  The  arbitrators  shall  arrange  for a  simultaneous  exchange  of such
proposed resolutions.  The role of the third arbitrator shall be to select which
of  the  two  proposed   resolutions  more  closely   approximates  his  or  her
determination  of Prevailing  Market Rent.  The third  arbitrator  shall have no
right to  propose  a middle  ground  or any  modification  of  either of the two
proposed  resolutions.  The  resolution  such third  arbitrator  chooses as more
closely  approximating his or her determination shall constitute the decision of
the arbitrators and be final and binding upon the parties.
                           (x) In the event of a failure,  refusal or  inability
of any arbitrator to act, such arbitrator's  successor shall be appointed in the
same manner as provided for the initial  appointment  of such  arbitrator.  Each
party shall pay the fee and expenses of its respective arbitrator and both shall
share the fee and expenses of the third arbitrator,  and the attorneys' fees and
expenses of counsel for the respective parties and of witnesses shall be paid by
the respective party engaging such counsel or calling such witnesses.
                           (xi)  Landlord and Tenant shall  execute an amendment
to this  Lease,  setting  forth the lease  terms to apply  during  the  relevant
Extension Period,  within fifteen (15) business days of the final  determination
of Prevailing Market Rent with respect to such Extension Period.
         37.       Right of First Offer.
                  (a)  Landlord  hereby  grants  to  Tenant,  on the  terms  and
conditions  hereinafter  set forth,  the  continuing  right of first  offer (the
"Right of First  Offer") to lease any retail space  located in the Building (the
"Retail Space"),  as any such Retail Space shall become available for lease from
time to time both before  Landlord shall lease it to third parties and after the
initial  leasing of the Retail Space.  Landlord  shall deliver to Tenant written
notice  (the  "Retail  Space  Offer  Notice"),  upon  learning  of the  upcoming
availability of any Retail Space for lease (the "Available Retail Space"), which
Retail Space Offer Notice shall set forth the following information with respect
to such Available  Retail Space:  the rentable  area, the location,  the date of
availability and the terms upon which Landlord is willing to lease the Available
Retail Space.  Tenant shall have the right,  within ten (10) business days after
receipt of such Retail Space Offer Notice, to deliver to Landlord written notice
that  Tenant  either (i) elects to lease the  Available  Retail  Space upon such
terms  included in the Retail  Space Offer  Notice or (ii)  rejects the Right of
First  Offer.  In the event that Tenant  shall have  rejected the Right of First
Offer or shall fail to timely exercise such Right of First Offer within such ten
(10) business  days,  Tenant shall be deemed to have rejected the Right of First
Offer,  and Landlord  shall be free to lease the  Available  Retail Space to any
other  prospective  tenant,  within a period of nine (9)  months  from  Tenant's
receipt of the Retail Space Offer Notice, on terms not Materially More Favorable
(as hereinafter  defined) than those offered to Tenant in the Retail Space Offer
Notice.  In the event  that  either  Landlord  desires  to enter a lease  with a
prospective  tenant upon terms Materially More Favorable than those set forth in
the  Retail  Space  Offer  Notice  or  Landlord  does not  enter  into a binding
commitment  to lease the  Available  Retail  Space  within  nine (9) months from
Tenant's  receipt of the Retail Space Offer Notice,  then,  prior to leasing the
Available  Retail Space to any  prospective  tenant,  Landlord  shall deliver to
Tenant an updated  Retail Space Offer Notice  containing  the terms  Landlord is
willing to accept from the  prospective  tenant,  or if there is no  prospective
tenant,  upon such revised terms Landlord would like to propose,  and the rights
and obligations of Landlord and Tenant with respect to such updated Retail Space
Offer Notice shall be the same as for the initial Retail Space Offer Notice.
                  (b) In the event that Tenant shall  timely  exercise the Right
of First Offer with respect to any Available Retail Space in accordance with the
terms hereof,  Landlord and Tenant shall execute an amendment to this Lease with
respect to such  Available  Retail  Space upon the terms set forth in the Retail
Space Offer Notice within fifteen (15) business days of such exercise by Tenant,
but the  parties'  failure so to  execute  such  agreement  shall not affect the
validity or enforceability of Tenant's exercise.
                  (c) Anything  herein to the contrary  notwithstanding,  Tenant
shall have no Right of First Offer with respect to any Available Retail Space in
the event that an Event of Default shall have  occurred and be continuing  under
this Lease at the time such Retail Space becomes available for lease.
                  (d) As used herein,  "Materially  More  Favorable"  shall mean
terms having a Net Present Value (as hereinafter  defined) that is less than the
Net Present Value of the terms set forth in the Retail Space Offer Notice by ten
(10) percent or more. The "Net Present Value" of a proposed lease shall mean the
present  value  (using a discount  factor of nine percent (9%) per annum) of the
net rental payable under such proposed lease less the present value of all lease
concessions   granted  thereunder   (including,   without   limitation,   tenant
improvement allowances,  lease buy-out payments,  move-in allowances and similar
concessions other than free rent).
                  (e)  Tenant's  Right of First Offer with respect to any of the
Retail Space is subject to all  existing  rights of tenants of such Retail Space
during the Term of this Lease.  So long as Tenant leases all of the office space
in the  Building  under this  Lease,  in the event that any tenant in any of the
Retail Space whose lease contains an option to extend (each, a "Retail  Tenant")
negotiates an extension of its lease on terms other than those  specifically set
forth in its option to extend contained in its lease,  Landlord shall deliver to
Tenant written  notice of the terms offered by such Retail Tenant.  Tenant shall
have the right,  within ten (10) business days after receipt of such notice from
Landlord, to deliver to Landlord written notice that Tenant elects to lease such
Retail Space upon the same terms offered by the Retail  Tenant.  If Tenant shall
not timely deliver such notice of election, Landlord shall be free thereafter to
lease such Retail Space to the Retail Tenant.
         38.       First Right of Purchase.
                  (a)  Landlord  hereby  grants  to  Tenant,  on the  terms  and
conditions hereinafter set forth, a one-time first right of purchase (the "First
Right of  Purchase")  with  respect to the  Building  or any  interest  therein.
Landlord shall deliver to Tenant written notice (the "Right of Purchase Notice")
of any  intention  by Landlord  to sell the  Building  or any  interest  therein
(except in  connection  with a Booth Family  Transfer),  which Right of Purchase
Notice  shall set forth the price and  material  terms  upon which  Landlord  is
willing to sell the  Building  or such  interest.  Tenant  shall have the right,
within  fifteen (15) business days after such  delivery,  to deliver to Landlord
written  notice that Tenant elects to negotiate for the purchase of the Building
or such other  interest  offered by Landlord (the "Election to  Negotiate").  If
Tenant  shall have  rejected  the First  Right of  Purchase or in the event that
Tenant  shall fail to timely  deliver  the  Election  to  Negotiate  within such
fifteen  (15)  business  days,  Tenant  shall be deemed to have  elected  not to
negotiate for the purchase of the Building or such other interest,  and Landlord
shall be free thereafter to sell the Building or such interest therein described
in the Right of Purchase  Notice  upon any terms and  conditions  acceptable  to
Landlord.
                  (b) In the event that Tenant shall timely deliver the Election
to Negotiate in accordance with the terms hereof,  Tenant shall submit a written
counter-proposal  to Landlord within thirty (30) business days of delivering the
Election to  Negotiate,  which  counter-proposal  shall set forth the terms upon
which  Tenant is willing to  purchase  the  Building  or such  interest  therein
described  in the Right of  Purchase  Notice.  Upon the timely  delivery of such
counter-proposal  to Landlord,  Tenant  shall have the  exclusive  right,  for a
period of one hundred and twenty (120) days from  Tenant's  receipt of the Right
of Purchase  Notice  (the  "Negotiation  Period"),  to  negotiate  and execute a
purchase and sale  agreement  with  Landlord for the purchase of the Building or
such interest therein  described in the Right of Purchase  Notice.  Landlord and
Tenant hereby agree to negotiate in good faith during such  Negotiation  Period,
unless the parties shall mutually agree to earlier terminate such negotiations.
                  (c) In the event that  Landlord  and Tenant  fail to execute a
purchase and sale agreement  within the  Negotiation  Period,  Landlord shall be
free thereafter to sell the Building or such interest  therein  described in the
Right of Purchase  Notice upon any terms and conditions  acceptable to Landlord;
provided,  however,  that in the event that,  following  the  expiration  of the
Negotiation Period,  Landlord desires to accept a third party bona fide offer to
purchase  the  Building,  then prior to  accepting  such offer,  Landlord  shall
deliver to Tenant  written  notice of the terms offered by such third party (the
"Third Party Buyer"). If Landlord shall notify Tenant that the Third Party Buyer
has offered to purchase the  Building  for a price more than seven  percent (7%)
below the lowest  price  offered by  Landlord to Tenant  during the  Negotiation
Period,  as determined on a  cash-equivalent  basis,  then Tenant shall have the
right,  within  fifteen  (15)  business  days of such notice from  Landlord,  to
deliver to Landlord  written  notice that it elects to purchase  the Building on
the exact terms  proposed by such Third Party Buyer,  in which case,  Tenant and
Landlord shall execute a mutually binding purchase and sale agreement evidencing
such terms within  thirty (30) days of  Landlord's  receipt of such  election by
Tenant,  and  Landlord  and  Tenant  shall  consummate  such  purchase  and sale
transaction in accordance with the terms of such agreement.  If Tenant shall not
timely  deliver such notice of election,  Landlord  shall be free  thereafter to
sell the Building to such Third Party Buyer.
                  (d)  In  the  event  of  any   dispute   with  regard  to  the
determination  of whether  any offer by the Third  Party  Buyer  falls more than
seven  percent (7%) below the lowest offer made by Landlord to Tenant during the
Negotiation  Period  (each  such offer  being  determined  on a  cash-equivalent
basis),  Landlord  and Tenant  mutually  shall  designate  one of the  following
so-called "Big Six" accounting firms, which firm shall not then be, or have been
previously at any time during the  immediately  preceding  five (5) year period,
engaged  by  either  party  in any  capacity,  to make  such  evaluation,  which
evaluation  shall  be  final  and  binding  upon  Landlord  and  Tenant:   Price
Waterhouse,  Ernst & Young,  Coopers & Lybrand,  Arthur Andersen LLP, Deloitte &
Touche and KPMG Peat Marwick LLP. If none of the  foregoing  firms shall be duly
qualified,  or if Landlord and Tenant shall fail to agree on a firm within three
(3) business days of written notification by the contesting party of the subject
dispute,  the dispute  shall be resolved by such  independent  certified  public
accounting  firm of  national  reputation  as  selected  by the  then  presiding
President of the Bar  Association of San Francisco,  upon the written request of
either party.  The accounting  firm selected  pursuant to the terms hereof shall
make its final determination within ten (10) business days of its retention.
                  (e) Anything herein to the contrary  notwithstanding,  subject
only to the  immediately  following  sentence,  at Landlord's  sole option,  any
exercise of the First Right of Purchase shall not be effective in the event that
either (i) an Event of Default shall have occurred and be continuing  under this
Lease on the date Landlord  would have  delivered the Right of Purchase  Notice,
but for the existence  such Event of Default,  or (ii) an Event of Default shall
occur at any time after the date Landlord delivers the Right of Purchase Notice.
In either of such events,  at Landlord's  sole option,  Landlord  shall have the
right to sell the Building or any interest  therein on any terms and  conditions
acceptable to Landlord, provided that, in the event of clause (i) only, Landlord
shall have  provided  Tenant with written  notice (A) stating that such Event of
Default has occurred and is continuing,  (B) containing such  information as set
forth in a Right of Purchase  Notice and (C) providing that Tenant's First Right
of Purchase shall thereafter terminate unless Tenant shall cure such outstanding
Event of Default within ten (10) days (the "Right of Purchase Default  Notice").
In the event that  Tenant  fails to cure such Event of Default  within  such ten
(10) day period, Tenant's First Right of Purchase shall terminate,  and Landlord
shall be free thereafter to sell the Building or such interest therein described
in the Right of Purchase  Notice  upon any terms and  conditions  acceptable  to
Landlord.  In the event that Tenant shall cure such Event of Default within such
ten (10) day period,  Tenant shall have until the fifteenth  (15th) business day
from the date of the Right of Purchase Default Notice to deliver to Landlord the
Election to Negotiate in accordance  with the terms of Section 38(a).  If Tenant
shall  reject  the Right of  Purchase  Default  Notice  or shall  fail to timely
deliver the Election to Negotiate  within the relevant fifteen (15) business day
period, Tenant shall be deemed to have elected not to negotiate for the purchase
of the Building or such other interest, and Landlord shall be free thereafter to
sell the Building or such  interest  therein  described in the Right of Purchase
Notice upon any terms and conditions acceptable to Landlord. Notwithstanding any
of the foregoing,  Tenant shall have no First Right of Purchase pursuant to this
Section  38(e),  and  Landlord  shall have no  obligation  to deliver a Right of
Purchase  Default  Notice,  in the event that  pursuant to the  occurrence of an
Event of  Default  Landlord  shall  have given  Tenant a  Termination  Notice in
accordance with Section 18 hereof.
                  (f) Except as  specifically  set forth herein,  Tenant's First
Right of Purchase hereunder shall be a one-time right.
                  (g) Notwithstanding any of the foregoing, Tenant's First Right
of Purchase  hereunder  shall not arise upon,  and Tenant shall have no right to
exercise  the First Right of  Purchase  with  respect  to, (i) any Booth  Family
Transfer,  (ii) any transfer of the Premises to the Landlord's  Lender or to any
affiliate of Landlord's Lender through  foreclosure  proceedings or deed-in-lieu
of  foreclosure  and  (iii)  any  transfer  of the  Premises  to a  third  party
immediately  succeeding a transfer described in the immediately preceding clause
(ii).
                  (h) Notwithstanding any of the foregoing, Tenant's First Right
of Purchase  hereunder shall apply only in the event of a disposition  involving
solely all or a portion of the  Building or any interest  therein,  and Tenant's
First  Right of Purchase  hereunder  shall not arise,  and Tenant  shall have no
right to exercise the First Right of Purchase, in the event that any interest in
any other building  owned by Landlord is included  together with the interest in
the Building in a single sale to a single purchaser.
         39.       Building Security.
                  (a)  Tenant  shall  be  permitted  to  install,  maintain  and
operate, so long as Tenant occupies the entirety of the Premises as tenant under
this Lease,  at its sole cost and  expense,  card  readers,  turnstiles,  closed
circuit  television or other security  devices and wiring related thereto in the
main lobby of the Building to control entry to and exit from the  Premises,  all
without  charge by  Landlord.  In  addition,  Tenant  may,  at its own  expense,
install,  maintain and operate its own card key,  closed circuit  television and
other  security  systems and wiring  related  thereto in the Premises and in the
elevators serving the Premises,  all without charge by Landlord.  Landlord shall
not be responsible  for monitoring any such systems.  At all times that Landlord
and its other  permitted  users shall park in the Garage or use the  maintenance
shop in the  Garage  during  the  Term,  Landlord  shall  comply  and  cause its
permitted  users to  comply  with  Tenant's  reasonable  security  arrangements.
Notwithstanding  the  foregoing,  Landlord  and its  permitted  users shall have
reasonable  access to the  portion of the Garage not  included  in the  Premises
seven (7) days per week,  twenty-four  (24) hours per day,  subject to  Tenant's
reasonable security requirements.
                  (b) Each party and its security personnel shall cooperate with
the  other  party  and its  security  personnel  in  implementing  the  parties'
respective security  requirements  within or about the Building.  Landlord's and
Tenant's security  personnel shall communicate from time to time with respect to
security  issues and give each to the other such  notices as may be necessary or
appropriate  from time to time,  or at any time,  under the  circumstances  with
respect to emergencies  and other  security-related  matters as soon as possible
after the occurrence thereof.
                  (c) If at any time  during  the  Term,  the  Building  and the
building  known by the address 221 Main Street ("221 Main  Street") are not both
owned or managed by an entity  controlled  by any member or members of the Booth
Family,  then  Tenant  may at any time  lock or seal  the  doorway  between  the
Building and 221 Main Street.
         40.       Signage.
                  (a) Landlord  agrees that Tenant's  signage rights (the "Major
Signage  Rights") shall include the following:  exclusive  signage rights in the
main lobby of the Building,  as well as exclusive  monument signage in the plaza
adjacent to the Building and within the property line of the Building,  with the
exact  location and type of signage to be mutually and  reasonably  agreed to by
the parties hereto.  In addition,  Tenant shall have the exclusive right, at its
option,  to name the Building  "The Schwab  Building" or another  similar  name,
using prominent  exterior  building  signage on the faces of the Building and on
the roof thereof and to install an electro-lux  (lighted stock market ticker) in
the main lobby of the  Building.  Tenant's  foregoing  signage  rights  shall be
subject only to compliance with all applicable  laws,  regulations,  ordinances,
rules  or  requirements  now in  force  or  which  may  hereafter  be in  force,
including,  without  limitation,  obtaining all necessary  permits and approvals
from the City and County of San Francisco.  Landlord shall cooperate  reasonably
with and  assist  Tenant in  securing  any and all such  necessary  permits  and
approvals.  All costs  incurred  with  respect to Tenant's  signage,  including,
without limitation, all costs of design,  fabrication,  installation and removal
thereof, and of obtaining approval therefor, shall be paid solely by Tenant, and
Tenant hereby indemnifies, defends and holds Landlord, harmless from any and all
costs, damages, liabilities and losses incurred in connection with such signage,
including,   without  limitation,  in  connection  with  the  use,  maintenance,
installation  and  removal  thereof.  Tenant  shall not be  charged  any rent or
additional fee by Landlord for the signage rights provided herein, provided that
the market value of Tenant's  signage  shall be considered  in  determining  the
Prevailing Market Rent for the Premises  applicable during any Extension Period.
If Tenant  changes  its trade name to a name other than  Charles  Schwab,  or if
Tenant  shall assign this Lease,  Tenant may change the  Building  signs and any
other signs installed by Tenant to reflect its name, and if Tenant determines to
change the  type-face  and style of such sign (in  addition  to the name),  such
change in typeface  and style  shall be subject to  Landlord's  approval  (which
shall not be unreasonably withheld, conditioned or delayed).
                  (b) In the event that Tenant  exercises any  Extension  Option
with  respect to either  floors two through  eight of the Building or floors two
through  nine of the  Building,  Tenant shall  retain the Major  Signage  Rights
during the relevant Extension Period.
                  (c) Tenant shall, at its sole cost and expense,  remove all of
its signage upon the expiration or earlier  termination of this Lease and repair
any and all damage caused by such removal.
                  (d) Except as otherwise set forth in this Section 40, no sign,
placard, picture,  advertisement,  name or notice shall be inscribed, displayed,
printed or affixed on or to any part of the outside or inside (if  visible  from
the outside) of the Building  without the written  consent of Landlord first had
and  obtained,  and  Landlord  shall  have the  right to remove  any such  sign,
placard,  picture,  advertisement,  name or notice, without notice to and at the
expense of Tenant, if Tenant fails to promptly remove such sign or the like upon
notice from Landlord to do so.
         41.       Satellite Dish.
                  Landlord   shall   permit   Tenant  to  install  one  or  more
communications  satellite dishes in an area of  approximately  one hundred (100)
square  feet  located  on the  roof of the  Penthouse  of the  Building  in such
location  as (a)  shall  be  available  for  such  installation  at the  time of
Landlord's  receipt of a written request from Tenant for the designation of such
area,  (b) shall be  designated  by  Landlord,  subject to  Tenant's  reasonable
approval,  and (c)  shall  not  interfere  with the  transmission  of any  other
communications  devices  located  prior  thereto on the roof of the  Building by
Landlord or any third parties leasing space from Landlord. No rent or Additional
Charges  shall be payable by Tenant or charged by Landlord for the  placement or
use of the dish or dishes. Tenant shall be granted reasonable access to the roof
of the Building to the extent reasonably  necessary to enable Tenant to install,
maintain,  repair  and  operate  the dish or dishes,  and Tenant  shall have the
right,  subject to  Landlord's  prior written  approval (not to be  unreasonably
withheld,  delayed  or  conditioned),  to run  wires  between  the  roof and the
Premises in  appropriate  locations and through  conduits in the  Building.  The
physical  specifications and manner of installation of any such satellite dishes
shall be  subject to  Landlord's  prior  written  approval,  which  shall not be
unreasonably  withheld,  conditioned  or  delayed.  Tenant  hereby  indemnifies,
defends and holds Landlord harmless from any and all costs, damages, liabilities
and losses  incurred in connection  with any such satellite  dishes,  including,
without limitation,  in connection with the use,  maintenance,  installation and
removal thereof and access thereto.
         42.       Miscellaneous Provisions.
                  (a) The words  "Landlord"  and "Tenant" as used herein,  shall
include the plural as well as the singular.
                  (b)  If  there  be  more  than  one  Tenant,  the  obligations
hereunder imposed upon Tenant shall be joint and several.
                  (c) Time is of the  essence  of this Lease and each and all of
its provisions.
                  (d) Submission of this instrument for examination or signature
by Tenant does not  constitute a reservation  of or option for lease,  and it is
not  effective  as a lease or  otherwise  until  execution  and delivery by both
Landlord and Tenant.
                  (e) The agreements, conditions and provisions herein contained
shall, subject to the provisions as to assignment,  apply to and bind the heirs,
executors, administrators, successors and assigns of the parties hereto.
                  (f) The term  "business day" as used herein means a day of the
week,  other  than a  Saturday  or Sunday,  during  which  banks in the State of
California, are required to be open for business.
                  (g) Tenant shall have the right to install vending machines in
the Premises for food, snacks and beverages.
                  (h) If any  provision of this Lease shall be  determined to be
illegal  or  unenforceable,  such  determination  shall  not  affect  any  other
provision of this Lease and all such other provisions shall remain in full force
and effect.
                  (i) This Lease shall be governed by and construed  pursuant to
the laws of the State of California.
                  (j) All remedies  hereinbefore  and hereafter  conferred  upon
Landlord or Tenant shall be deemed  cumulative  and no one shall be exclusive of
the other,  or shall in any way limit the  availability to Landlord or Tenant of
any other remedy conferred by law, whether or not specifically  conferred by the
provisions of this Lease.
                  (k) All  indemnities  of Tenant  contained in this Lease shall
survive the  expiration  or other  termination  hereof with  respect to any act,
condition  or event  which is the  subject  matter of such  indemnity  and which
occurs  prior  to  such  expiration  or  other  termination.   (l)  The  parties
acknowledge  and agree that each party has reviewed  and  revised,  and has been
provided the  opportunity of its respective  counsel to review and revise,  this
Lease,  and no rule of construction to the effect that any ambiguities are to be
resolved against the drafting party shall be employed in the  interpretation  or
construction of this Lease, or any amendments or exhibits thereto,  or any other
document executed and delivered by either party in connection therewith.
         43.       Exhibits.
                  The exhibit(s) and addendum,  if any,  specified in any of the
Sections of this Lease are attached to this Lease and by this  reference  made a
part hereof.
         44.       Brokerage.
                  Each  party  warrants  and  represents  to the other that such
party has not  retained the  services of any real estate  broker,  finder or any
other  person  whose  services  would  form  the  basis  for any  claim  for any
commission or fee in connection with this Lease or the transactions contemplated
hereby except for real estate  brokerage  services  rendered by Colliers  Damner
Pike to Tenant and by The CAC Group,  Inc. to Landlord,  the commissions  earned
with respect to which Landlord shall pay to such brokers  pursuant to a separate
agreement. Each party agrees to save, defend, indemnify and hold the other party
free and  harmless  from any breach of its warranty  and  representation  as set
forth  in  the  preceding  sentence,  including  the  other  party's  reasonable
attorneys' fees.
         45.       Limitation Of Liability.
                  With the exception of actions arising from  Landlord's  fraud,
bad faith or willful  misconduct,  any  liability  of Landlord  under this Lease
shall be limited to  Landlord's  interest in the Building and the parcel of real
property on which the Building is located,  any  appurtenant  rights thereto and
the proceeds thereof.  Notwithstanding the foregoing, in the event that Landlord
defaults in its  obligation  to disburse  any portion of the Tenant  Improvement
Allowance in  accordance  with the terms of the Work Letter,  the  limitation of
liability  contained  in this  Section 45 shall not apply to the extent that any
such undisbursed amounts exceed such limitation of liability.
         46.       Lease Memorandum.
                  The parties acknowledge and agree that this Lease shall not be
recorded,  but rather each party  hereto  shall  execute and  acknowledge,  upon
fulfillment of the condition  precedent specified in Section 50, a Short Form of
Lease in the form attached hereto as Exhibit M (the  "Memorandum").  The parties
further agree that the Memorandum  shall be recorded in the Official  Records of
the City and County of San Francisco,  California (the "Official Records"). Upon
the expiration or termination of this Lease for any reason, Tenant hereby agrees
and covenants to deliver to Landlord a termination of lease in the form attached
hereto as Exhibit N to be recorded in the Official Records.
         47.       Landlord's Failure to Pay the Tenant Improvement Allowance.
                  If  Landlord   shall  fail  to  pay  the  Tenant   Improvement
Allowance, or any installment thereof, on or before the date the same is due and
payable in  accordance  with the terms of the Work Letter or if  Landlord  shall
fail to pay Tenant on or before the date the same is due and  payable  any other
sums due Tenant from Landlord  under this Lease,  such unpaid amounts shall bear
interest  from the date due until paid at the highest rate legally  permitted by
law,  if, but only if,  Tenant  shall  have first  given  Landlord  notice  that
Landlord's  payment is past due and  Landlord  fails to pay same within five (5)
business days after Tenant's notice is given, and that Tenant's notice states in
capital  letters at the top of such notice:  "IF  LANDLORD  DOES NOT PAY THE SUM
THAT IS PAST DUE AND REFERRED TO IN THIS LETTER  WITHIN FIVE (5)  BUSINESS  DAYS
AFTER THIS  NOTICE IS GIVEN,  INTEREST  WILL  ACCRUE  FROM THE DATE SUCH SUM WAS
DUE".  Payment of  interest  shall not excuse or cure any default  hereunder  by
Landlord.

         48.       Building Directory.

                  Landlord  shall reserve on the Building  directory,  or in any
computerized Building directory, Tenant's Pro Rata Share (as set forth in Column
H of Exhibit B) of the total  Building  directory  spaces  then on the  Building
directory for purposes of identifying  Tenant's name, divisions and/or principal
employees.  All costs for the initial strip or inputting of names shall be borne
by Landlord and all reasonable costs for replacement of such strips or inputting
shall be borne by Tenant.
         49.       Quiet Enjoyment.
                  Upon  paying  the  Base  Rent  and   Additional   Charges  and
performing  all its  obligations  under this Lease,  Tenant may  peacefully  and
quietly  enjoy the  Premises  during the Term as against all persons or entities
claiming by or through  Landlord,  subject,  however,  to the provisions of this
Lease and any encumbrances as specified in Section 24.
         50.       Conditions Precedent.
                  (a)  This  Lease  and  Landlord's  obligations  hereunder  are
subject to the express condition  precedent of approval by Landlord's Lender. If
Landlord's  Lender  does not approve  this Lease on or before 5:00 p.m.  Pacific
Daylight Time on August 15, 1997,  either  Landlord or Tenant may terminate this
Lease on notice to the other without further liability.
                  (b) This Lease and Tenant's obligations  hereunder are subject
to the express condition  precedent of approval by the Board of Directors of The
Charles  Schwab  Corporation.  If such Board shall not approve  this Lease on or
before 5:00 p.m.  Pacific  Daylight Time on August 15, 1997,  either Landlord or
Tenant  may  terminate  this  Lease  on  notice  to the  other  without  further
liability.

         IN WITNESS WHEREOF, the parties have executed this Lease as of the date
set forth in the Basic Lease Information.

LANDLORD:                                              TENANT:

MAIN PLAZA, LLC,                              CHARLES SCHWAB & CO., INC.,
a California limited liability company         a California corporation



By /s/ Corwin Booth                           By /s/ Steven L. Scheid
- ------------------------                      ------------------------------
         Corwin Booth                                Steven L. Scheid
         Manager                              Executive Vice President and
                                                 Chief Financial Officer





                                    Exhibit A

                                   Floor Plans


                                   Exhibit B

                      Schedule of Information re: Premises




                   (A)          (B)            (C)            (D)           (E)            (F)             (G)            (H)

    Floor        Target        Target         # of         Rentable        Annual       Monthly Base   Tentant's Pro   Tenant's Pro
                Delivery    Commencement      Days           Area         Base Rent        Rent (1)      Rata Share     Rata Share
                   Date         Date          from                                                        (Taxes,       (All Other
                                           (A) to (B)                                                   Insurance,      Expenses)
                                                                                                         Security)
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                  

   Garage       01/01/98      01/01/98          0           21,072     $  240,000.00   $  20,000.00
  Crossover     01/01/98      04/01/98          90          16,947     $  246,294.00   $  20,525.00
    Space
      2         10/01/97      02/09/98         131          22,188     $  465,948.00   $  38,829.00       5.93%           6.17%
      3         10/01/97      02/09/98         131          22,131     $  464,751.00   $  38,729.00       5.92%           6.16%
      4         10/01/97      02/09/98         131          22,131     $  464,751.00   $  38,729.00       5.92%           6.16%
      5         10/01/97      02/09/98         131          22,131     $  464,751.00   $  38,729.00       5.92%           6.16%
      6         11/01/97      02/23/98         114          22,200     $  466,200.00   $  38,850.00       5.94%           6.18%
      7         11/01/97      03/02/98         121          22,200     $  466,200.00   $  38,850.00       5.94%           6.18%
      8         12/01/97      03/16/98         105          22,200     $  466,200.00   $  38,850.00       5.94%           6.18%
      9         12/01/97      03/23/98         112          22,197     $  466,137.00   $  38,845.00       5.93%           6.18%
      10        01/01/98      04/06/98          95          22,150     $  465,150.00   $  38,763.00       5.92%           6.16%
      11        01/01/98      04/13/98         102          21,956     $  461,076.00   $  38,423.00       5.87%           6.11%
      12        02/01/98      05/11/98          99          22,442     $  471,282.00   $  39,274.00       6.00%           6.24%
      13        02/01/98      05/18/98         106          22,442     $  471,282.00   $  39,274.00       6.00%           6.24%
      14        03/01/98      06/08/98          99          22,442     $  471,282.00   $  39,274.00       6.00%           6.24%
      15        03/01/98      06/15/98         106          22,442     $  471,282.00   $  39,274.00       6.00%           6.24%
      16        04/01/98      06/24/98          84          22,442     $  471,282.00   $  39,274.00       6.00%           6.24%
      17        04/01/98      06/24/98          84          22,824     $  479,304.00   $  39,942.00       6.10%           6.35%
  Penthouse     04/01/98      06/24/98          84           2,911     $   61,131.00   $   5,094.00       0.78%           0.81%
                                                         ---------------------------------------------------------------------------
    Total                                                   397,448    $8,034,303.00   $ 669,528.00       96.1%          100.0%

- ---------------------------
(1) Subject to adjustment pursuant to Section 3 (b)(ii) and Section 3(b)(iii) of the Lease.






                                    Exhibit C

                      Schedule of Information re: Premises


                                    Exhibit D

                           Notice of Commencement Date



                                    Exhibit E

                           Standard Building Services


                                   Exhibit F

                        Examples of Base Rent Adjustment




                                    Exhibit G

                       Categories of Landlord's Statement




                                    Exhibit H

                            Confidentiality Agreement



                                    Exhibit I

                                Cleaning Schedule



                                    Exhibit J

                                      SNDA



                                    Exhibit K

               Garage Schedule - Entire Premises Extension Option



                                    Exhibit L

       Garage/Crossover Space Schedule - Partial Premises Extension Option






                                    EXHIBIT M

WHEN RECORDED RETURN TO:
CORBIN SILVERMAN & SANSEVERINO LLP
805 THIRD AVENUE
NEW YORK, NEW YORK  10022
ATTENTION:  RAYMOND A. SANSEVERINO, ESQ.
- --------------------------------------------------------------------------------


                               SHORT FORM OF LEASE

         THIS SHORT FORM OF LEASE (this  "Agreement")  is made and entered  into
this 8th day of August 1997 by and between MAIN PLAZA, LLC, a California limited
liability  company  ("Landlord"),  and CHARLES  SCHWAB & CO., INC., a California
corporation ("Tenant").

         This  Agreement is made and entered into based on the following  facts,
understandings and intentions of Landlord and Tenant:

         A.  Landlord and Tenant have  entered into a written  lease dated as of
August 8, 1997,  (the  "Lease"),  pursuant  to which  Landlord  leased to Tenant
certain space (the "Premises") in a building commonly known as and by the street
address 211 Main Street (the "Building") on a parcel of real property  described
in Exhibit A attached hereto, in the City and County of San Francisco,  State of
California.  Capitalized  terms  used  but not  defined  herein  shall  have the
meanings ascribed to them in the Lease.

         B. Landlord and Tenant  desire to enter into and record this  Agreement
in the Official Records of San Francisco  County, so that third parties may have
constructive notice of the Lease.

         NOW THEREFORE, Landlord and Tenant acknowledge and agree as follows:

         1.  Initial  Term.  Landlord  leases to Tenant and Tenant  leases  from
Landlord the Premises on the terms and  conditions  contained in the Lease.  The
initial term of the Lease shall commence with respect to each  respective  floor
of the Premises upon the date that Landlord delivers possession of such floor to
Tenant in  accordance  with the  terms of,  and in the  condition  required  by,
Section  2(b) of the  Lease,  and shall  expire on April 30,  2018,  subject  to
earlier termination or extension as provided for in the Lease.

        2. Extension  Options.  Subject to the  requirements  and conditions set
forth in  Section 36 of the  Lease,  Tenant  shall have the option to extend the
Lease  with  respect  to all or a portion  of the  Premises  for two  additional
consecutive  terms of a maximum of seven (7) years each in  accordance  with the
terms of Section 36 of the Lease

        3. Right of First Offer.  Subject to the requirements and conditions set
forth  in  Section  37 of the  Lease,  Landlord  hereby  grants  to  Tenant  the
continuing  right of first offer to lease any Retail Space, as such Retail Space
shall become  available for lease from time to time both before  Landlord  shall
lease it to third parties and after the initial leasing of the Retail Space

        4. First Right Of Purchase.  Subject to the  requirements and conditions
set forth in Section 38 of the Lease,  Landlord  hereby grants to Tenant a first
right of purchase with respect to the Building or any interest therein.

        5. Addresses. The addresses of Landlord and Tenant are as follows:

                  TENANT:     101 Montgomery Street
                              San Francisco, California 94104
                  Attention:  Senior Vice President
                              Administrative Services

                              with copies to:
                              P. O. Box 881566
                              c/o Corporate Real Estate Lease Administration
                              San Francisco, California 94188-1566

                              and

                              Charles Schwab & Co., Inc.
                              101 Montgomery Street
                              San Francisco, California 94104
                              Attn:    Mary Templeton, Esq.
                                       Senior Vice President and General Counsel

                              and

                              Corbin Silverman & Sanseverino LLP
                              805 Third Avenue
                              New York, New York 10022
                              Attn:    Raymond A. Sanseverino, Esq.

                  LANDLORD:   Main Plaza, LLC
                              101 Howard Street, Suite 404
                              San Francisco, California 94105

         6. Purpose of Agreement;  Conflict.  This Agreement is entered into and
recorded only for the purpose of imparting notice of the Lease to third parties.
In the event of any conflict  between the terms of this  Agreement  and those of
the Lease, the terms of the Lease shall prevail.

         7. Effect Of Agreement;  Incorporation  Of Lease Terms.  This Agreement
does not alter, amend or in any way modify the Lease and further incorporates by
reference all of the terms and provisions of the Lease.

         IN WITNESS WHEREOF, the parties have executed this Agreement on the day
and year first written above.


                                            LANDLORD:

                                            MAIN PLAZA, LLC, a California
                                            limited liability company


                                            By: /s/ Corwin Booth
                                               -------------------------
                                                    Corwin Booth
                                                    Manager

                                            TENANT:

                                            CHARLES SCHWAB & CO., INC., a
                                            California corporation


                                            By: /s/ Steven L. Scheid
                                                -------------------------
                                                    Steven L. Scheid
                                                    Executive Vice President and
                                                    Chief Financial Officer





                                   Attachment

                               Notary Public Form




                                    Exhibit N

                              Termination of Lease