AGREEMENT


         THIS  AGREEMENT  made  this  11TH day of  March,  1996  between  KELLER
CARNEGIE  ASSOCIATES,  a New Jersey limited  partnership having an office at 103
Carnegie  Center,  Princeton,  New Jersey  08540  ("Seller")  and CENTURY  PLAZA
ASSOCIATES, a New Jersey general partnership,  having an office at 11 Commercial
Drive, Cranford, New Jersey 07016 ("Purchaser").

                                    RECITALS

         A. Seller is the owner of the Premises (as hereinafter defined) located
in the County of Mercer,  Township of Princeton,  State of New Jersey,  commonly
known as 103 Carnegie Center, Princeton, New Jersey.

         B. Seller has agreed to sell to Purchaser,  and Purchaser has agreed to
purchase  from Seller,  the Premises (as  hereinafter  defined),  subject to the
terms and conditions set forth herein.

         NOW, THEREFORE, in consideration of the mutual promises hereinafter set
forth and of other good and valuable consideration,  the receipt and sufficiency
of which are hereby  acknowledged,  the parties hereto,  intending to be legally
bound hereby, do hereby agree as follows:

         1.       SUBJECT OF CONVEYANCE.

                  Seller hereby agrees to sell and convey,  and Purchaser hereby
agrees  to  purchase,  subject  to all terms  and  conditions  set forth in this
Agreement:

                           (i) those  certain  plots,  pieces or parcels of land
situate,  lying and being in the County of Mercer,  Township  of  Princeton  and
State of New Jersey comprised of  approximately  9.892 acres in the aggregate of
developed land, as described in Exhibit A annexed hereto (the "Land"); and

                           (ii)  the   buildings,   open   parking   areas   and
improvements, including without limitation, all mechanical, electrical, heating,
ventilation,  air conditioning and plumbing  fixtures,  systems and equipment as
well as all compressors,  engines,  elevators and escalators, if any, erected on
the Land and  commonly  known as  Carnegie  Center,  Princeton,  New Jersey (the
"Buildings"); and

                           (iii) All leases and other agreements with respect to
the  occupancy  of the Land and  Buildings,  together  with all  amendments  and
modifications  thereto, and rents,  additional rents,  reimbursements,  profits,
income, receipts and Security Deposits thereunder ("Leases") and all of Seller's
right,  title and  interest in and to those  contracts  and  agreements  for the
servicing,  maintenance  and  operation  of the  Land  and  Buildings  ("Service
Contracts") to the extent Purchaser elects to assume same as provided in Section
9 herein; and

                           (iv) all right,  title and  interest,  if any, of the
Seller in and to those certain fixtures, equipment, furniture and other personal
property affixed to or appurtenant to the Land and Buildings including,  without
limitation, all carpets, drapes and other furnishings; maintenance equipment and
tools; keys to locks on or in the Buildings; and all other machinery, equipment,
meters,  boilers, repair parts, fixtures and tangible personal property of every
kind and character and all accessions and additions  thereto owned by and in the
possession of Seller and attached to or located upon and used in connection with
the ownership,  maintenance, or operation of the Land or Buildings which are not
the  property of tenants of the  Buildings or of other  persons  (the  "Personal
Property"); and

                           (v) all right,  title and  interest,  if any,  of the
Seller in and to any land lying in the bed of any public  street,  road,  alley,
easements,  rights of way, water, water courses,  hereditaments or avenue opened
or proposed,  in front of or adjoining  said Land and  Buildings,  including all
strips and gores  between  the Land and  abutting  property,  to the center line
thereof; and

                           (vi) all right, title and interest of Seller, if any,
in and to all site plans,  surveys,  soil and substrata  studies,  architectural
drawings, plans and specifications,  engineering plans and studies, floor plans,
landscape plans, operating or maintenance manuals and other plans and studies of
any kind owned by Seller,  if any, with respect to the Land, the  Buildings,  or
the Personal Property ("Plans"); and

                           (vii)  all  books,  records,   promotional  material,
tenant data,  leasing material and forms, past and current rent rolls, paid bill
files, bank statements,  tax returns,  market studies, keys, and other materials
of any kind  owned  by  Seller,  if any,  which  are or may be used in  Seller's
ownership or use of the Land, the Buildings or the Personal Property ("Books and
Records"); and

                           (viii) all right,  title and  interest of Seller,  if
any, in and to the use of the name "Carnegie Center" and any other name by which
the property is commonly known, and all goodwill, if any, related to the name by
which the property is commonly known; and

                           (ix) all right, title and interest of Seller, if any,
in and to any and all  licenses and permits  owned or held by Seller  (including
any  certificates of occupancy) to the extent such are assignable and in any way
related  to or  arising  out of or used in  connection  with  the  ownership  or
operation of the Land,  the  Buildings or the Personal  Property  (collectively,
"Licenses and Permits"); and

                           (x) all other rights,  privileges  and  appurtenances
owned by Seller,  if any,  and in any way  related  to the rights and  interests
described above in this Section.

(The  foregoing  properties,  rights and  interests  set forth or  described  in
sub-sections (i) - (x) of this Section 1 are hereinafter  collectively  referred
to as the "Premises".)


         2.       DEFINITIONS OF CERTAIN TERMS.

                  For purposes of this Agreement,  unless the context  otherwise
requires:

                           "Additional   Rent"  shall  mean  any   component  of
additional  rent,  however  characterized,  under  a  Lease,  including  without
limitation,  real estate taxes, electrical charges,  utility costs and operating
expenses.

                           "Additional  Rent  Credit"  shall mean the  aggregate
amount due to all Tenants on account of the  overpayment  during  calendar  year
1995 or any other prior year of any Additional Rent.

                           "Appurtenances"  shall  mean  all  right,  title  and
interest,  if any, of Seller in and to any award or payment made, or to be made,
(x) for any taking in condemnation,  eminent domain or agreement in lieu thereof
of land  adjoining all or any part of the Land or  Buildings,  (y) for damage to
the Land or  Buildings  or any part  thereof  by  reason  of  change of grade or
closing of any such street,  road,  highway or avenue, and (z) for any taking in
condemnation  or eminent domain of any part of the Land or Buildings  other than
provided for in Section 19.

                           "Broker" is as defined in Section 16.

                           "Brokerage Fund" is as defined in Section 15.

                           "Cash Payment" is Ten Million ($10,000,000)  Dollars,
subject to adjustments as provided herein.

                           "Closing" is on or about March 20, 1996,  but subject
to the provisions of Section 22.

                           "Closing  Date" shall mean the date on which the deed
to the Premises shall be delivered and title thereto conveyed to Purchaser.

                           "Deed"  shall  mean a  bargain  and  sale  deed  with
covenants in proper  statutory  form for  recording so as to convey to Purchaser
good and marketable  title to the fee simple of the Premises,  free and clear of
all liens and encumbrances, except the Permitted Encumbrances.

                           "Deposit" is Two Hundred  Fifty  Thousand  ($250,000)
Dollars.

                           "DOT" is as defined in Section 19.

                           "Element" is as defined in Section 26.

                           "Environmental  Documents"  is as  defined in Section
26.

                           "Escrow  Agent"  is First  American  Title  Insurance
Company.

                           "Escrow" is as defined in Section 15.

                           "Escrow Agreement" is as defined in Section 15.

                           "Estoppel Certificate" is as defined in Section 7.

                           "Execution  Date" is the date  that a fully  executed
copy of this Agreement is in the possession of counsel to Purchaser and Seller.

                           "Expenses Fund" is as defined in Section 15.

                           "Governmental  Authorities"  shall  mean any  agency,
board, bureau, commission, department or body of any municipal, county, state or
federal  governmental  unit, or any subdivision  thereof,  having,  asserting or
acquiring  jurisdiction  over all or any part of the Premises or the management,
operation, use or improvement thereof.

                           "Hazardous   Materials"   shall   include,    without
limitation,  gasoline,  petroleum products,  explosives,  radioactive materials,
polychlorinated  biphenyls,  asbestos or any materials containing  asbestos,  or
related or similar  materials,  or any other substance or material  defined as a
hazardous or toxic substance or waste or toxic  pollutant by any federal,  state
or local law, ordinance, rule, or regulation.

                           "Inspection  Period" is the period  commencing on the
Execution Date and ending March 20, 1996.

                           "ISRA" is the Industrial Site Recovery Act,  N.J.S.A.
13:1K-6 et seq.,  the  regulations  promulgated  thereunder  and any amending or
successor legislation and regulations.

                           "ISRA Compliance Date" is as defined in Section 26.

                           "Lease Extensions" is as defined in Section 8.

                           "Major Facility" is as defined in the Spill Act.

                           "Master Lease" is as defined in Section 15.

                           "NJDEP" is the New Jersey Department of Environmental
Protection.

                           "Permitted Encumbrances" is as defined in Section 5.

                           "Premises" is as defined in Section 1.

                           "Purchase Price" is as defined in Section 4.

                           "Rent  Roll" is the rent  roll for the  Premises  set
forth in Exhibit G in the form required under Section 9(b).

                           "Security  Deposits" are those deposits  posted under
the Leases and all other  deposits,  if any,  in the  nature of  security  for a
Tenant's performance under its Lease.

                           "Seller's Equity" is as defined in Section 9.

                           "Service  Contracts"  shall mean those  contracts set
forth in Exhibit H.

                           "Spill  Act"  shall mean the Spill  Compensation  and
Control Act,  N.J.S.A.  58:10-23.11  et seq.,  together  with any  amendments or
revisions thereof and any regulations promulgated thereunder and any amending or
successor legislation and regulations.

                           "Tenant  Improvement  Fund" is as  defined in Section
15.

                           "Tenants"  shall  mean any and all  occupants  of the
Premises as of the date hereof.

                           "Tests and Studies" is as defined in Section 3.

                           "Title  Company" is First  American  Title  Insurance
Company.

                           "Title Policy" is as defined in Section 17.


         3.       INSPECTION PERIOD; PURCHASER'S RIGHT OF
                           INSPECTION PRIOR TO CLOSING

                  During the Inspection Period,  Purchaser, at its sole expense,
may  perform  Tests  and  Studies  and  may  inspect  the  physical   (including
environmental)  and  financial  condition  of the  Premises,  including  but not
limited  to  the  Leases,  contracts,  engineering  and  environmental  reports,
development  approval  agreements,  permits and approvals and Service Contracts,
which  inspection  shall be  satisfactory  to Purchaser in its sole  discretion.
Purchaser may terminate  this  Agreement  for any reason,  by written  notice to
Seller given within the Inspection  Period.  In the event  Purchaser  terminates
this  Agreement,  Purchaser  shall be entitled to the return of the Deposit with
interest  earned  thereon,  and  this  Agreement  shall be null and void and the
parties hereto shall be relieved of all further obligations  hereunder except as
otherwise provided herein.

                  During  the  Inspection  Period,  Purchaser,  its  agents  and
contractors,  shall have the right to enter upon the  Premises  and  perform (or
cause to be performed)  tests,  investigations  and studies of or related to the
Premises   including,   but  not  limited  to,  soil   borings,   ground   water
investigation,   percolator   tests,   surveys,   architectural,    engineering,
subdivision,  environmental, access, financial, market analysis, development and
economic  feasibility  studies  and other  tests,  investigations  or studies as
Purchaser,  in its sole  discretion,  determines  is  necessary  or desirable to
satisfy   Purchaser  of  the  feasibility  of  owning  and  using  the  Premises
(collectively  the  "Tests and  Studies"),  provided  that it shall give  Seller
notification  of its  intention  to conduct  any such  inspection  and that such
inspection  shall  not  unreasonably   impede  the  normal  day-to-day  business
operation of the  Premises.  Such right of  inspection  and the exercise of such
right  shall  not  constitute  a  waiver  by  Purchaser  of  the  breach  of any
representation  or warranty of Seller  which might have been  disclosed  by such
inspection.

                  Seller agrees to permit  Purchaser access to the Premises upon
prior notice to Seller for the purpose of performing  the Tests and Studies.  To
assist  Purchaser  in the  performance  of its Tests  and  Studies,  Seller  has
previously  delivered to Purchaser true and complete copies of all test borings,
environmental   reports  (including,   without  limitation,   all  Environmental
Documents),  surveys, title materials and engineering and architectural data and
the like relating to the Premises  that are in Seller's  possession or under its
control and, in the event any additional  materials or  information  come within
Seller's  possession or control after the date of this  Agreement,  Seller shall
promptly submit true and complete copies of the same to Purchaser.  Seller shall
cooperate with Purchaser in facilitating the Tests and Studies and shall obtain,
at no cost or expense to Seller, any consents that may be necessary in order for
Purchaser to perform the same. Purchaser shall repair and restore any portion of
the surface of the Premises  disturbed by Purchaser,  its agents or  contractors
during the  conduct of any of the Tests and  Studies to  substantially  the same
condition as existed prior to such disturbance.


         4.       PURCHASE PRICE AND TERMS OF PAYMENT.

                  The purchase price for the Premises is Ten Million Two Hundred
Fifty  Thousand and xx/100  Dollars  ($10,250,000.00)  (the  "Purchase  Price"),
payable as follows:

                  (a) Delivery of the Deposit to the Escrow Agent,  within three
(3) days of the  Execution  Date,  which shall be held  pursuant to the terms of
Section 24; and

                  (b) The Cash Payment, by a bank,  certified or cashier's check
on the  Closing  Date or by the wiring of federal  funds to Seller or the Escrow
Agent, subject to adjustment as provided herein.


         5.       MATTERS TO WHICH THIS SALE IS SUBJECT

                  The  Premises  are sold and are to be conveyed  subject to the
following (collectively the "Permitted Encumbrances"):

                  (a) The liens of real estate taxes,  personal  property taxes,
water charges, and sewer charges provided same are not due and payable;

                  (b) The rights of Tenants, as tenants only;

                  (c)  Those  restrictions,  covenants,  agreements,  easements,
matters  and  things  affecting  title to the  Premises  and  more  particularly
described  in  Exhibit  "D"  annexed  hereto and by this  reference  made a part
hereof;

                  (d) Any and all  laws,  statutes,  ordinances,  codes,  rules,
regulations,  requirements,  or  executive  mandates  as the same may be amended
subsequent  to the date  hereof  affecting  the  Premises  adopted by the United
States, the State of New
Jersey, the Township of Princeton and any and every other Governmental Authority
having jurisdiction thereof;

                  (e) The state of facts shown on that certain  survey  prepared
by Thomas  Tyler Moore  Associates  Inc. and dated June 8, 1987 and revised June
18,  1987 and any  update of said  survey and any other  state of facts  which a
recent and accurate survey of the Premises would actually show, provided same do
not impair the use of the Premises as an office building and do not render title
uninsurable at standard rates; and

                  (f) Those Service  Contracts (as hereinafter  defined) and, to
the extent  permitted  herein,  replacements  and renewals  thereof  (subject to
apportionment  as provided in this  Agreement) if and to the extent the same are
assumed by Purchaser, at its option, at Closing.


         6.       ADJUSTMENTS

                  (a) The following items with respect to the Premises are to be
apportioned  as of midnight on the date  preceding the Closing and shall be paid
to the appropriate parties outside of the Purchase Price:

                           (i) Rents,  escalation  charges and percentage  rents
payable by Tenants as and when collected. Purchaser shall use reasonable efforts
to collect  delinquent  additional  rents. All monies received from Tenants from
and  after the  Closing  shall  belong to  Purchaser  and  shall be  applied  by
Purchaser  to  current  rents and other  charges  under  the  Leases  and to any
delinquencies then due Purchaser.  After application of such monies to any rents
and charges due to Purchaser  (whether current or delinquent),  Purchaser agrees
to remit to Seller any excess  amounts paid by a Tenant to the extent paid prior
to Closing.  Delinquent additional rents received after Closing shall be applied
first to any delinquent additional rents owed to Purchaser,  and thereafter paid
to Seller.  The  provisions  of this  subsection  6(a) shall survive the Closing
Date.

                           (ii) The  Additional  Rent Credit.  At least ten (10)
days prior to Closing,  Seller shall deliver to Purchaser a schedule showing the
portion of the Additional Rent Credit allowable to each Tenant and a description
of the nature of such overpayment. Purchaser agrees to remit said amount to each
Tenant on the schedule.  Seller  acknowledges its obligation to each Tenant with
respect to any claims for overpayment of Additional Rent for any period prior to
the  Closing  Date  other  than as set  forth on said  schedule,  and that  such
obligation shall survive the Closing.  In the event that any Tenant shall assert
a  claim  against  Purchaser  for  any  Additional  Rent  Credit,  Seller  shall
indemnify,  defend and hold  harmless  Purchaser  for any loss,  cost or expense
arising  therefrom,  including  without  limitation  the amount of the claim and
reasonable  counsel fees and  disbursements  (whether or not in-house or outside
counsel).

                           (iii) Utility charges  payable by Seller,  including,
without limitation,  electricity,  water charges and sewer charges. If there are
meters on the  Premises,  Seller  will cause  readings  of all said meters to be
performed not more than five (5) days prior to the Closing Date.

                           (iv) Amounts payable under the Service Contracts,  to
the extent Purchaser assumes such Service Contracts at Closing.

                           (v)  Real  estate  taxes  due and  payable  over  the
calendar year. If the Closing Date (as  hereinafter  defined) shall occur before
the tax rate is fixed, the  apportionment of real estate taxes shall be upon the
basis of the tax rate for the  preceding  year  applied to the  latest  assessed
valuation.  If subsequent  to the Closing Date,  real estate taxes (by reason of
change in either  assessment  or rate or for any other  reason) for the Premises
should be  determined to be higher or lower than those that are  apportioned,  a
new  computation  shall be made, and Seller agrees to pay Purchaser any increase
shown by such  recomputation  and vice versa.  The provisions of this Subsection
6(a)(v) will survive the Closing Date.

                           (vi) Income from  vending  machines,  if any, and all
other income, if any, other than rents.

                           (vii) All charges levied for the maintenance charges,
membership  fees,  dues or other  charges  as  provided  in the  Declaration  of
Covenants,  Conditions  and  Restrictions,  as amended  (as defined in the Title
Policy).

                  (b) At the Closing,  Seller shall  deliver to Purchaser a list
of the Additional  Rents billed to Tenants for the calendar year 1996 (both on a
monthly basis and in the aggregate), the basis for which the monthly amounts are
being billed and the amounts  incurred by Seller on account of the components of
Additional Rent for calendar year 1996. Upon the  reconciliation by Purchaser of
the Additional Rents billed to Tenants,  and the amounts  actually  incurred for
calendar year 1996,  Seller and Purchaser  shall be liable for  overpayments  of
Additional  Rents,  and shall be entitled to payments from Tenants,  as the case
may be, on a pro rata basis based upon each party's  period of ownership  during
calendar year 1996.

                  (c)  Except  as  otherwise  provided  in this  Agreement,  the
adjustments  shall be made in  accordance  with the  customs in respect to title
closings in the State of New Jersey.

                  (d)  Any  errors  in  calculations  or  adjustments  shall  be
corrected or adjusted as soon as practicable after the Closing.


         7.       ESTOPPEL CERTIFICATES

                  (a) Seller  represents to Purchaser  that Seller has delivered
to each Tenant an estoppel certificate in the form annexed hereto as Exhibit "E"
for  Tenant's  execution,  completed to reflect the  Tenant's  particular  Lease
status.

                  (b) Seller agrees to use its best reasonable efforts to obtain
from all Tenants and deliver  same to Purchaser  (i) the  estoppel  certificates
referred  to in  subsection  7(a),  or at a minimum and in  satisfaction  of the
remainder of this  Section 7, (ii)  estoppel  certificates  in the form in which
each  Tenant  is  obligated  to  deliver  same as  provided  in its  Lease.  All
certificates referred to in (i) and (ii) above shall be collectively referred to
as "Estoppel Certificates".

                  (c) As a condition  to Closing,  Seller  shall  deliver (i) an
Estoppel  Certificate  from each Tenant  which is leasing  demised  space in the
Premises of 10,000 square feet or more and (ii) Estoppel  Certificates  from the
remaining Tenants leasing  seventy-five (75%) percent of the aggregate remaining
square footage of the Premises.

                  (d) For an Estoppel  Certificate  to be deemed  delivered  for
purposes of this Agreement, it must certify that the Tenant's most recent rental
payment  under its Lease was made not more than one (1) month prior to the month
in which the Closing occurs.

                  (e) Seller  shall  deliver  its own  Estoppel  Certificate  on
behalf of each Tenant  which has failed to deliver such  certificate  on its own
behalf.

         8.       ITEMS TO BE DELIVERED BY SELLER ON THE CLOSING DATE

                  On the Closing  Date,  Seller,  at its sole cost and  expense,
will deliver or cause to be delivered to Purchaser  the  following  documents in
connection  with the Premises in form and substance  reasonably  satisfactory to
Purchaser:

                  (a) The Deed duly executed and  acknowledged.  The delivery of
the Deed shall  also be deemed to  transfer  all of  Seller's  right,  title and
interest in and to the Personal Property.

                  (b) All  original  Leases and all other  documents  pertaining
thereto,  and certified  copies of such Leases or other  documents where Seller,
using its best efforts, is unable to deliver originals of same.

                  (c) All other original  documents or instruments  initialed by
or on behalf of the  parties  to this  Agreement  or  referred  to  herein,  and
certified  copies of same where  Seller,  using its best  efforts,  is unable to
deliver originals.

                  (d) A letter  to  Tenants  advising  the  Tenants  of the sale
hereunder  and  directing  that rent and other  payments  thereafter  be sent to
Purchaser or its designee, as Purchaser shall so direct.

                  (e) Duly executed and  acknowledged  assignment of all Leases,
Security  Deposits  and  Intangible  Property in the form of Exhibit "F" annexed
hereto.

                  (f) A cashier's  check to the order of Purchaser in the amount
of the Security Deposits and any prepaid rents,  together with interest required
to be paid thereon.

                  (g) An affidavit,  or such other  documents as required by the
Title  Company,  executed  by Seller  certifying  (i)  against  any work done or
supplies delivered to the Premises which might be grounds for a materialman's or
mechanic's  lien under or  pursuant to New Jersey  law,  in form  sufficient  to
enable the Title  Company  affirmatively  to insure  Purchaser  against any such
lien,  (ii) that the  signatures  on the Deed are  sufficient to bind Seller and
convey the Premises to  Purchaser,  (iii) the  conveyance  is not  prohibited or
restricted  in any way under the laws of the  State of New  Jersey  and (iv) the
Rent  Roll.  Seller  shall  also  deliver  a  survey  affidavit  in the form and
substance required by the Title Company.

                  (h) Any and all  affidavits and other  instruments  (including
but not  limited to all  organizational  documents  of the  Seller and  Seller's
general  partner  including  limited  partnership  agreements,  certificates  of
partnership, by laws, articles of incorporation, and good standing certificates)
and  documents  which the Title  Company  shall  reasonably  require in order to
insure title to  Purchaser,  subject to no  exceptions  other than the Permitted
Encumbrances.

                  (i) The Estoppel Certificates required in Section 7.

                  (j) Plans, Books and Records.

                  (k) Intentionally deleted.

                  (l) A Rent Roll, current as of the Closing Date,  certified by
Seller as being true and correct in all respects.

                  (m) All proper instruments as shall be reasonably required for
(i) the  conveyance  of title to the  Appurtenances,  and  (ii)  subject  to the
provisions  of Section 19, the  assignment  of and/or  collection  rights to any
condemnation or eminent domain claims,  awards or payments, as well as the right
to claim or collect  damages  resulting  from damage to the Premises or any part
thereof  by reason of the  changing  of grade or closing  of any  street,  road,
highway or avenue.

                  (n) Duly executed and acknowledged assignment of those Service
Contracts  which  Purchaser  has  elected to assume in the form of  Exhibit  "H"
annexed hereto.

                  (o) A certificate signed by an officer of Seller to the effect
that  Seller is not a  "foreign  person"  as that  term is  defined  in  Section
1445(f)(3) of the Internal Revenue Code of 1986, as amended.

                  (p) All such transfer and other tax  declarations  and returns
and information returns, duly executed and sworn to by Seller as may be required
of Seller by law in connection with the conveyance of the Premises to Purchaser,
including but not limited to, Internal Revenue Service forms 1099-S and 1096.

                  (q) A  statement  setting  forth the  Purchase  Price with all
adjustments and prorations shown thereon.

                  (r) The  Seller's  closing  certificate  with  respect  to the
representations and warranties described in Section 9 hereof.

                  (s) The  Additional  Rent  list  and  Additional  Rent  Credit
schedule described in Section 6 hereof.

                  (t) The Escrow Agreement described in Section 15 hereof.

                  (u) Lease extension and  modification  agreements  executed by
Kurt Salmon Associates ("Salmon") and Ronin Development Corporation ("Ronin") on
terms  previously  approved by Purchaser  and  otherwise  in form and  substance
reasonably acceptable to Purchaser  (collectively,  the "Lease Extensions").  If
Seller  shall be  unable  to  obtain  the Lease  Extensions  after  having  used
reasonable  efforts to obtain same,  then Seller perform as described in Section
15.

                  (v) A  certification  from the  Association (as defined in the
Title  Policy)  that  all  charges,   including   monthly   common  charges  and
assessments,  have been paid  through  the  Closing  Date  with  respect  to the
Premises.

                  (w) Evidence  sufficient  to Purchaser  and the Title  Company
that Scottish & York Realty,  Inc. has no rights or options now or in the future
with respect to the Premises.

         9.       SELLER'S REPRESENTATIONS AND WARRANTIES

                  In order to induce Purchaser to purchase the Premises,  Seller
hereby  warrants,  represents  and agrees that the  following are true as of the
date hereof and will be true on the Closing Date:

                  (a)  Annexed  hereto as Exhibit  "C" is a true,  complete  and
correct schedule of all Leases, which Leases are valid and bona fide and are now
in full force and effect.  No defaults exist  thereunder and no condition exists
which,  with the passage of time or the giving of notice or both,  will become a
default;  the Leases  constitute  all of the leases,  tenancies  or  occupancies
affecting the Premises on the date hereof; all Tenants have commenced occupancy;
other than as set forth in the Leases, there are no agreements which confer upon
any  Tenant  or any other  person  or entity  any  rights  with  respect  to the
Premises,  nor is any Tenant  entitled  now or in the future to any  concession,
rebate,  offset,  allowance or free rent for any period,  nor has any such claim
been asserted by any Tenant.

                  (b) Annexed hereto as Exhibit "G" (the "Rent Roll") is a true,
complete  and  correct  listing of all Leases,  which sets forth:  (i) the total
number of Tenants at the  Premises;  (ii) the name of each  Tenant;  (iii) fixed
rent actually  being  collected;  (iv)  expiration  date or status of the Leases
(including  all  rights or  options  to  renew);  (v)  Security  Deposits;  (vi)
arrangements  under  which any Tenant is  occupying  space on the date hereof or
will in the future,  occupy such space; (vii) any notices given by any Tenant of
an intention to vacate space in the future; and (viii) the base year(s) and base
year amounts for all items of rent or  additional  rent billed to each Tenant on
that basis.  Seller has performed all of the obligations and observed all of the
covenants required of the landlord under the terms of the Leases.

                  (c)  All  work,  alterations,  improvements  or  installations
required to be made for or on behalf of all Tenants under the Leases have in all
respects  been  carried  out,  performed  and  complied  with,  and  there is no
agreement  with any  Tenant  for the  performance  of any work to be done in the
future.  No work has been  performed  at the  Premises  which  would  require an
amendment to the certificate of occupancy, and any and all work performed at the
Premises  to the date  hereof  and to the  Closing  Date has been and will be in
accordance with the rules,  laws and regulations of all applicable  authorities.
All bills and claims for labor  performed and materials  furnished to or for the
benefit of the Premises will be paid in full on the Closing Date.

                  (d)  There  are  no  service   contracts,   union   contracts,
employment  agreements  or  other  agreements  affecting  the  Premises  or  the
operation  thereof,  except the Service Contracts.  True,  accurate and complete
copies of the Service  Contracts have been initialed by the parties.  All of the
Service  Contracts  are and will on the Closing Date be  unmodified  and in full
force and effect  without  any default or claim of default by any of the parties
thereto.  All sums  presently  due and  payable  by  Seller  under  the  Service
Contracts have been fully paid and all sums which become due and payable between
the date hereof and the Closing Date shall be fully paid on the Closing Date.

                  (e) There are no actions, suits, labor disputes, litigation or
proceedings currently pending or, to the knowledge of Seller, threatened against
or  related  to Seller or to all or any part of the  Premises  or the  operation
thereof, nor does Seller know of any basis for any such action.

                  (f) There are no outstanding  requirements or  recommendations
by (i) the insurance company(s) which issued the insurance policies insuring the
Premises;  (ii) any board of fire underwriters or other body exercising  similar
functions,  or (iii) the holder of any mortgage,  which require or recommend any
repairs or work to be done on the Premises.

                  (g) No Tenants  are in arrears for the payment of rent for any
month preceding the month of the date of this Agreement, nor has Seller received
notice of an  intention  to vacate from any Tenant,  except as noted on the Rent
Roll.

                  (h)  Subject  to the  terms  of  this  Agreement,  Seller  has
received  no  written  notice  and  has no  knowledge  of  (i)  any  pending  or
contemplated annexation or condemnation proceedings, or private purchase in lieu
thereof,  affecting or which may affect the Premises,  or any part thereof, (ii)
any   proposed  or  pending   proceeding   to  change  or  redefine  the  zoning
classification of all or any part of the Premises, (iii) any proposed or pending
special  assessments  affecting  the Premises or any portion  thereof,  (iv) any
penalties or interest due with respect to real estate taxes assessed against the
Premises  and (v) any  proposed  change(s) in any road or grades with respect to
the roads providing a means of ingress and egress to the Premises. Seller agrees
to furnish Purchaser with a copy of any such notice received within two (2) days
after receipt.

                  (i) Seller has provided Purchaser with all reports in Seller's
possession  or under  its  control  related  to the  physical  condition  of the
Premises and all Books and Records  necessary  for  Purchaser to conduct its due
diligence and Tests and Studies.

                  (j)  Seller  has  no  knowledge  of  any  notices,  suits,  or
judgments  relating to any  violations  (including  environmental)  of any laws,
ordinances  or  regulations   affecting  the  Premises,  or  any  violations  or
conditions  that may give rise  thereto  and has no reason to  believe  that any
Governmental Authorities contemplates the issuance thereof.

                  (k) There are no employees  working at or in  connection  with
the Premises.  There is currently no union agreement  affecting the Premises and
none will be in effect on the Closing Date.

                  (l)  Annexed  hereto  as  Exhibit  " L" is a  schedule  of all
leasing   commission   obligations   affecting  the  Premises.   The  respective
obligations  of Seller and Purchaser  with respect to said  commissions  are set
forth in Section 15.

                  (m)  Seller  (A)  is a duly  organized  and  validly  existing
limited partnership (corporation) under the laws of the State of New Jersey, and
is duly authorized to transact business in the State of New Jersey;  (B) has all
requisite  power and  authority  to execute and deliver this  Agreement  and all
other  documents and  instruments  to be executed and delivered by it hereunder,
and to perform its  obligations  hereunder  and under such other  documents  and
instruments  in order to sell the  Premises  in  accordance  with the  terms and
conditions  hereof and all necessary actions of the general and limited partners
(stockholders  and  board of  directors)  of Seller  to  confer  such  power and
authority upon the persons  executing this Agreement and all documents which are
contemplated by this Agreement on its behalf have been taken.

                  (n) This Agreement,  when duly executed and delivered, will be
the legal,  valid and binding  obligation of Seller,  enforceable  in accordance
with  the  terms of this  Agreement.  Seller's  performance  of its  duties  and
obligations under this Agreement and the transfer documents  contemplated hereby
will not conflict with, or result in a breach of or default under, any provision
of  any of  Seller's  organizational  documents,  any  agreements,  instruments,
decrees, judgments,  injunctions,  orders, writs, laws, rules or regulations, or
any  determination  or award of any court or  arbitrator,  to which  Seller is a
party or by which its assets are or may be bound.

                  (o)  No  petition  in  bankruptcy  (voluntary  or  otherwise),
assignment for the benefit of creditors,  or petition seeking  reorganization or
arrangement or other action under Federal or State bankruptcy laws is pending or
threatened against, or contemplated by Seller.

                  (p) No person, firm, or entity has any rights in, or rights to
acquire all or any part of the Premises.

                  (q) The Personal Property is now owned and will on the Closing
Date be owned by Seller free and clear of any conditional bills of sale, chattel
mortgages,  security  agreements  or  financing  statements  or  other  security
interests of any kind.

All  representations  and warranties  provided by Seller in this Agreement shall
survive the Closing Date for a period of one (1) year and shall not be merged in
the delivery of the Deed. Seller agrees to indemnify and hold Purchaser harmless
against all claims,  liabilities,  losses,  deficiencies  and damages as well as
reasonable  expenses  (including  attorney's  fees),  and interest and penalties
related  thereto,  asserted by any third party against or incurred by Purchaser,
by  reason  of or  resulting  from any  breach,  inaccuracy,  incompleteness  or
nonfulfillment  of the  covenants,  representations  and  warranties  of  Seller
contained in this  Agreement.  Any recovery by Purchaser  from Seller under this
Section  shall be limited  to  Seller's  Equity in the  Premises  (as  hereafter
defined) unless Seller has made a willful misrepresentation under this Section 9
whereupon  recovery by Purchaser shall not be limited in any manner  whatsoever.
"Seller's  Equity" in the  Premises  shall  mean the net amount of the  Purchase
Price  actually  received by Seller after  deducting from the Purchase Price all
charges  and costs of Seller  including,  but not  limited to, the payoff of the
Mutual Benefit Life mortgage,  the Tenant  Improvement Fund, the Brokerage Fund,
the Expenses Fund, the  consulting/brokerage  payment to Salvatore Frassetto and
Seller's expenses in connection with this transaction.


         10.      SELLER'S COVENANTS

                  Seller  covenants  and agrees that between the date hereof and
the Closing Date it shall perform or observe the  following  with respect to the
Premises:

                  (a) Seller,  as  landlord,  will not enter into any new leases
with respect to the Premises,  or renew or modify any Lease, without Purchaser's
prior written consent.

                  (b) If prior to the Closing  Date Seller  shall have  received
from  (i) any  insurance  company  which  issued a policy  with  respect  to the
Premises,  (ii) any board of fire underwriters or other body exercising  similar
functions,  or (iii)  the  holder  of any  mortgage,  any  notice  requiring  or
recommending any repair work to be done on the Premises, Seller will do the same
expeditiously  and  diligently  at its own cost and expense prior to the Closing
Date.

                  (c) Seller  will  operate  and  maintain  the  Premises in the
ordinary  course of business and use reasonable  efforts to reasonably  preserve
for  Purchaser  the  relationships  of Seller and Seller's  Tenants,  suppliers,
managers,  employees and others having on-going relationships with the Premises.
Seller will  complete any capital  expenditure  program  currently in process or
anticipated  to be  completed.  Seller  will not defer  taking  any  actions  or
spending any of its funds, or otherwise manage the Premises differently,  due to
the pending sale of the Premises.

                  (d)      Seller shall not:

                           (i) Enter into any agreement  requiring  Seller to do
work for any Tenant after the Closing Date without  first  obtaining the written
consent of Purchaser; or

                           (ii) Accept the surrender of any Service  Contract or
Lease, or grant any concession, rebate, allowance or free rent.

                  (e) Seller shall not,  between the date hereof and the Closing
Date,  apply  any of such  Security  Deposits  with  respect  to any  Tenant  in
occupancy on the Closing Date.

                  (f) Subject to the provisions of this  Agreement,  between the
date hereof and the Closing Date, Seller will not renew, extend or modify any of
the Service Contracts without the prior written consent of the Purchaser in each
instance first had and obtained. At the Closing, Seller will cancel or will have
previously  cancelled  (effective  on the Closing  Date) all  Service  Contracts
except  those  which  Purchaser  has  agreed  in  writing  to  assume,  with all
cancellations at Seller's sole cost and expense.

                  (g) Seller shall not remove any Personal Property, fixtures or
equipment  located in or on the  Premises,  except as may be required for repair
and  replacement.  All  replacements  shall  be free  and  clear  of  liens  and
encumbrances  and shall be of quality at least equal to the  replaced  items and
shall be deemed included in this sale, without cost or expense to Purchaser.

                  (h) Seller shall,  upon request of Purchaser at any time after
the date  hereof,  assist  Purchaser  in its  preparation  of audited  financial
statements,  statements of income and expense,  and such other  documentation as
Purchaser may reasonably  request,  covering the period of Seller's ownership of
the Premises.

                  (i) Between the date hereof and the Closing Date,  Seller will
make all required payments under any mortgage  affecting the Premises within any
applicable grace period,  but without  reimbursement  by Purchaser  therefor and
Seller shall also pay all of its interest and related obligations under any such
mortgage  through and including the Closing Date.  Seller shall also comply with
all other terms covenants, and conditions of any mortgage on the Premises.

                  (j)  Seller  shall not cause or permit  the  Premises,  or any
interest therein, to be alienated,  mortgaged, liened, encumbered (other than by
mechanic's or materialman's  liens or claims which are removed or bonded against
prior to Closing) or otherwise be transferred.

                  (k) Up to and  including  the Closing  Date,  Seller agrees to
maintain and keep such hazard, liability and casualty insurance policies in full
force and effect in such amounts and covering such risks sufficiently to protect
the Premises and to protect,  to a reasonable and prudent  extent,  the owner of
the  Premises,  in  such  amounts  as are  required  so as not  to be  deemed  a
co-insurer,  and for actual replacement cost, against any loss, damage, claim or
liability.

                  (l)  Seller  shall  permit   Purchaser   and  its   authorized
representatives  to  inspect  the Books and  Records  of its  operations  at all
reasonable  times for a period of one (1) year  subsequent  to the Closing Date.
All Books and Records not conveyed to Purchaser  hereunder  shall be  maintained
for Purchaser's inspection at Seller's address as set forth above.

                  (m) All violations of laws, statutes, ordinances, regulations,
orders or  requirements  affecting  the Premises of which Seller has  knowledge,
whether  or not such  violations  are now noted in the  records  of or have been
issued by any Governmental Authorities,  will be complied with by Seller and the
Premises will be conveyed free of any such violations.

                  (n)  Seller  shall  retain  the  books  and  records  used  in
determining  additional  rent  amounts  under the Leases for a period of two (2)
years after notification of said amounts are given to Tenants.

         11.      CONDITIONS PRECEDENT TO PURCHASER'S OBLIGATIONS.

                  The  obligations  of Purchaser to purchase the Premises and to
perform the other  covenants and obligations to be performed by Purchaser on the
Closing Date shall be subject to the following  conditions  (all or any of which
may be waived, in whole or in part, by Purchaser):

                           (i) The representations and warranties made by Seller
herein shall be true and correct in all respects  with the same force and effect
as though such  representations  and  warranties  had been made on and as of the
Closing Date.

                           (ii) Seller shall have  performed  all  covenants and
obligations  undertaken  by Seller in  Section  10  hereof in all  respects  and
complied  with all  conditions  required by this  Agreement  to be  performed or
complied with by it on or before the Closing Date.

                           (iii) The Title Company is  unconditionally  prepared
to issue to  Purchaser  a Title  Policy  meeting the  requirements  set forth in
Section 17 hereof for an "insurable title".

                           (iv) Seller shall have  delivered to Purchaser all of
the documents enumerated in Section 8 hereof.

         12.      SELLER'S CREDIT

                  (a) For a period of three (3)  months  following  the  Closing
Date,  Seller shall have the  nonexclusive  right to present to Purchaser leases
for up to  2,500  square  feet of space at the  Premises  vacant  as of the date
hereof provided the following conditions are met:

                           (i) the  minimum  rent  shall be at least  $19.00 per
square foot gross  (including  fixed and  additional  rent) for each year of the
lease;

                           (ii) the  lease  term  shall be for no less than five
(5) years and no more than ten (10) years;

                           (iii)  there are no tenant  rent  concessions  of any
kind whatsoever contained in the lease;

                           (iv) the lease is on the same form as the Leases;

                           (v) the  creditworthiness of the proposed tenant and,
to the extent not otherwise  provided  herein,  the terms and  conditions of the
proposed  lease  (and  any  brokerage  agreement  executed  therewith)  shall be
satisfactory to Purchaser, in its reasonable discretion;

                           (vi) the tenant is a bona fide third party;

                           (vii)  the lease  shall  have  been  executed  by the
tenant  thereunder and shall be a valid,  binding and enforceable  obligation of
said party upon the execution thereof by Purchaser as a landlord thereunder; and

                           (viii) the  procuring  broker,  if any,  shall be any
broker other than Cali Realty Corporation or an affiliate thereof.

If Seller  procures any leases in accordance with conditions (i) through (viii),
then within thirty (30) days following the tenant  thereunder  taking  occupancy
and commencing the payment of regular  installments of rent, Purchaser shall pay
to Seller an amount  derived by multiplying  7.692 times the difference  between
(a) the  gross  rent to be paid  over the  first  year of the  lease and (b) the
projected  operating  expenses  during  the  first  full  year of the  lease and
thereafter  subtracting  the  aggregate  of the  tenant  improvement  costs  and
brokerage  commissions  associated  with  the  lease.  Following  such  payment,
Purchaser  shall be responsible for any tenant  improvement  costs and brokerage
commission incurred with respect to said lease; to the extent previously paid by
Seller, Purchaser shall reimburse Seller against actual receipts marked "paid."

                  (b) Purchaser  shall have no obligation to accept any lease or
leases from Seller  which lease in the  aggregate  is in excess of 2,500  square
feet of said vacant space at the Premises. In the event Purchaser shall accept a
lease or leases in the aggregate in excess of 2,500 square feet, Seller's credit
shall only be applicable to a pro rata amount based upon 2,500 square feet.

                  (c)  Seller's  rights  as set  forth  in this  Section  12 are
nonexclusive.  As a result, Seller shall only have the rights so provided herein
during said three (3) month  period only so long as any of said vacant  space is
available  and only for so much of said  vacant  space as is  available.  Seller
shall have no right or claim to any credit if said vacant space is leased by any
other party.

If any  payments  are  made to  Seller  pursuant  to this  Section  12 and it is
determined by a Governmental  Authority that transfer taxes are due with respect
to said payments,  Purchaser  shall withhold the applicable  amount for transfer
tax purposes and pay said amount over to the appropriate Governmental Authority.

         13.      EXPENSES

                  (a) Seller shall pay the fees,  costs and expenses of Seller's
counsel,  and any and all  sales  taxes,  transfer  taxes,  documentary  stamps,
customary  recording fees and other taxes and charges imposed in connection with
the  delivery  and  recording  of  the  Deed,   all  customary   prorations  and
appointments and one-half of all reasonable escrow fees.

                  (b)  Purchaser  shall pay the  fees,  costs  and  expenses  of
Purchaser's  counsel,  all title insurance  premiums and charges,  all recording
fees, all survey or surveyor  charges,  and any fees, costs or expenses incurred
by Purchaser in connection with its inspection of the Property,  including,  but
not  limited  to, any  architects',  engineers',  accountants',  appraisers'  or
contractors'  fees or costs,  all  customary  prorations  and  appointments  and
one-half of all reasonable escrow fees.

                  (c) The  obligations of Seller and Purchaser set forth in this
Section  13  shall  survive  the  Closing  or the  earlier  termination  of this
Agreement.


         14.      TAX REDUCTION AND APPEALS

                  Seller is hereby  authorized  to continue  the  proceeding  or
proceedings  now pending for the  reduction  of the  assessed  valuation  of the
Premises  as set forth on  Exhibit  "J" and to  litigate  or settle  the same in
Seller's  discretion.  Purchaser is hereby  authorized by Seller, in Purchaser's
sole discretion,  to file any applicable proceeding for the 1996 fiscal year for
the reduction of the assessed valuation of the Premises.

The net refund of taxes,  if any, for any tax year for which Seller or Purchaser
shall be entitled  to share in the refund  shall be divided  between  Seller and
Purchaser  in  accordance  with  the  apportionment  of  taxes  pursuant  to the
provisions  hereof.  The  provisions  of this Section  shall survive the Closing
Date.


         15.      LEASING COMMISSIONS AND
                  TENANT IMPROVEMENT OBLIGATIONS

                  (a) All  leasing  commissions  due on account of the  original
term of all Leases made before the date of this  Agreement  and  extensions  and
renewals  which are presently  effective (but not renewals or extensions of such
leases which are exercised after the Closing Date) shall be paid by Seller.  All
leasing  commissions  on account of  extensions or renewals of Leases made after
the  Closing  Date  shall  be paid by  Purchaser  with  the  exception  of those
pertaining to the Lease  Extensions  as further set forth in Sections  15(b) and
(c). All tenant improvements obligations shall be satisfied prior to the Closing
Date with the exception of those  pertaining to the Lease  Extensions as further
set forth in  Sections  15(b) and (c).  The  provisions  of this  Section  shall
survive the Closing.

                  (b) (i) In the event that the Lease  Extensions  are delivered
at Closing,  Seller  shall  direct that a portion of the  Purchase  Price in the
aggregate  amount of (a) 110% of the tenant  improvement  allowances  granted to
Salmon  and  Ronin for  tenant  improvements  to be  performed  by a  contractor
acceptable to Purchaser (the "Tenant  Improvement Fund"), (b) 100% of the amount
of brokerage  commissions relating to the Salmon and Ronin lease extensions (the
"Brokerage Fund") and (c) 100% of certain other  identifiable costs and expenses
set forth in Exhibit "K" (the  "Expenses  Fund") be remitted  directly to Escrow
Agent pursuant to the terms of the escrow agreement (the "Escrow  Agreement") in
form and  substance  to be agreed  upon  between  the  parties  hereto and to be
disbursed to Purchaser in accordance with the terms of the Escrow Agreement. The
Escrow Agent shall disburse at Closing amounts escrowed under the Brokerage Fund
and the Expenses Fund upon (i) receipt of invoices received from certain brokers
and/or vendors and (ii) approval of such invoices from Purchaser.

                           (ii)  In  the  event  that  only  one  of  the  Lease
Extensions  is executed and  delivered at Closing,  then (X) the  aforedescribed
Funds  described  in Section  15(b)(i)  shall be funded at  Closing  only to the
extent necessary to cover the tenant improvements and brokerage  commissions for
said Lease  Extension plus the Expenses Fund, (Y) the Master Lease (as hereafter
defined) shall be entered into for the space not leased and (Z) the Escrow shall
be   reduced  by   $200,000.00,   which   amount   shall  be  used  to  pay  the
brokerage/consulting fee to Salvatore Frassetto. If Seller does not deliver both
Lease Extensions fully executed at Closing,  then neither of the  aforedescribed
Funds shall be funded and the  provisions of the  following  paragraph (c) shall
govern.

                  (c) If Seller does not deliver fully executed Lease Extensions
by the Closing Date,  Seller and  Purchaser  hereby agree to proceed as follows:
(a) a portion of the Purchase  Price up to Eight  Million Five Hundred  Thousand
($8,500,000.00)  Dollars shall be used to satisfy that certain  mortgage made by
Seller to The Mutual  Benefit Life Insurance  Company in the original  principal
amount of  $10,000,000.00  (b) to remit the remainder of the Purchase Price (the
"Escrow") to the Escrow Agent pursuant to the terms of the Escrow Agreement, (c)
to perform their respective  obligations under this Agreement,  and (d) to enter
into a master lease between Seller, as tenant, and Purchaser,  as landlord, (the
"Master Lease") for the space which was to have been occupied by Ronin,  Salmon,
or both, as applicable, following the Lease Extensions had such Lease Extensions
been entered into. The payments by Seller under the Master Lease are obligations
secured and guaranteed by the Escrow;  provided,  however, that Seller's maximum
obligation  under the Master Lease shall be limited to the amount of the Escrow.
The Master Lease shall be on Purchaser's  standard form of lease under the terms
and conditions  previously agreed upon between the parties. The rent obligations
of Seller,  as tenant,  under the Master Lease shall be paid directly out of the
Escrow in accordance with the terms and conditions of the Escrow Agreement.

         (d) When and if both Lease  Extensions  are signed  under the terms and
conditions of this  Agreement,  or  replacement  leases  acceptable to Purchaser
covering all of the space  demised  under the Master Lease are signed,  then the
balance of the Escrow less an amount  equal to the greater of (i) the amounts to
be escrowed as the Tenant Improvement Fund, the Brokerage Fund and Expenses Fund
as  provided  in  paragraph  (b)  above or (ii) 110% of the  tenant  improvement
allowances  granted under the replacement  leases for tenant  improvements to be
performed by a contractor acceptable to Purchaser plus 100% of the amount of the
actual brokerage  commissions relating to the replacement leases plus any of the
then unpaid  identifiable  costs and expenses  described in paragraph  (b) above
shall be released to Seller.


         16.      BROKER

                  Purchaser and Seller  represent  that they have not dealt with
any brokers,  finders or salesmen except Keller,  Dodd and Woodworth,  Inc. (the
"Broker"), in connection with this transaction,  and agree to indemnify,  defend
and hold each other  harmless from and against any and all loss,  cost,  damage,
liability  or expense,  including  reasonable  attorneys'  fees,  which they may
sustain,  incur or be exposed to by reason of any claim for fees or commissions.
The commission payable to Broker shall be paid by Seller. The provisions of this
Section shall survive the Closing Date or other termination of this Agreement.


         17.      TITLE REPORT

                  (a)  Purchaser   agrees   promptly  after  execution  of  this
Agreement to order a report of title or title  commitment from the Title Company
and to direct the Title Company to provide Seller with a copy thereof.  It shall
be a condition to Closing that Seller transfer, and that the Title Company agree
to  insure,  title to the  Premises  in the amount of the  purchase  price (at a
standard rate for such  insurance) in the name of Purchaser,  after  delivery of
the Deed, by a standard 1992 ALTA Owners  Policy,  with ALTA  endorsements  Form
8.1, Form 9 and any other endorsements as required by Purchaser  attached,  free
and clear of all liens, encumbrances and other matters, other than the Permitted
Encumbrances (the "Title Policy").  The Title Company shall provide  affirmative
insurance that any Permitted  Encumbrances have not been violated,  and that any
future  violation  thereof will not result in a forfeiture or reversion of title
and the  exception  for taxes shall apply only to the current  taxes not yet due
and payable.  Seller shall provide such affidavits and undertakings as the Title
Company  insuring  title to the  Premises  may  require and shall cure all other
defects and exceptions.  The words "insurable  title" and "insurable" as used in
this  Agreement are hereby  defined to mean title which is insurable at standard
rates (without  special  premium) by the Title Company  without  exception other
than  the  Permitted  Encumbrances,  and  standard  printed  policy  and  survey
exceptions.  Seller shall be  obligated  to expend up to the  Purchase  Price to
cause title to the Premises to be conveyed to  Purchaser in the manner  required
under this Agreement.

                  (b)  If,  at the  Closing,  Seller  is  unable  to  convey  to
Purchaser  insurable title to the Premises subject to and in accordance with the
provisions  of this  Agreement,  Seller shall be entitled,  upon written  notice
delivered to Purchaser at or prior to the Closing, to reasonable adjournments of
the Closing  Date one or more times,  for a period or periods not to exceed,  in
the  aggregate,  thirty (30) days,  to enable  Seller to convey such title or to
fulfill such obligations. If Seller does not so elect to adjourn the Closing, or
if at the  adjourned  date  Seller is still  unable to  convey  insurable  title
subject to, and in  accordance  with the  provisions  of, this  Agreement,  then
Purchaser  may, at its option,  (a) terminate  this  Agreement by written notice
delivered as provided in Section 23 hereof, in which event the sole liability of
Seller  shall be to direct  Title  Company to refund the Deposit  with  interest
thereon  to  Purchaser,  and to refund to  Purchaser  all  charges  made for (i)
examining the title, (ii) any appropriate  additional municipal searches made in
accordance with this Agreement,  and (iii) survey and survey inspection charges;
or (b) accept title to the Premises  subject to such  defect(s),  in which event
such defect(s)  shall become  Permitted  Encumbrance(s).  Upon such refund being
made to Purchaser in  accordance  with clause (a) of the  immediately  preceding
sentence,  then this Agreement shall automatically become void and of no further
force or effect,  and neither party shall have any  obligations of any nature to
the other hereunder or by reason hereof,  except obligations which,  pursuant to
the  provisions  of  this  Agreement,   are  expressly  stated  to  survive  the
termination  of this  Agreement.  If Seller  elects to  adjourn  the  Closing as
provided above,  this Agreement shall remain in effect for the period or periods
of adjournments, in accordance with its terms.

                  (c) Upon notice to Seller,  Purchaser  shall have the right to
cause one or more title  insurance  companies,  whether or not through  abstract
agencies, to insure Purchaser's title to the Premises on a co-insurance basis or
to change title companies, so long as in each instance, said company and agency,
to the extent applicable,  is a duly licensed title insurance company authorized
to conduct business in the State of New Jersey.


         18.      CASUALTY LOSS

                  (a) If prior to the Closing  Date any part of the  Premises is
damaged as the result of fire or other casualty and the estimated cost of repair
of the damage exceeds $100,000.00, Purchaser shall have the option to either (i)
accept  title to the  Premises  without  any  abatement  of the  purchase  price
whatsoever,  in which event on the Closing  Date all of the  insurance  proceeds
shall be assigned by Seller to Purchaser and any moneys theretofore  received by
Seller in  connection  with such  fire or other  casualty  shall be paid over to
Purchaser,  or (ii) cancel this  Agreement  and the  Deposit  together  with all
interest earned thereon shall be returned to Purchaser by the Escrow Agent,  and
upon such return neither party shall have any further liability or obligation to
the other.  In the event that the  damages  shall not exceed  $100,000.00,  this
Agreement shall remain in full force and effect, the insurance proceeds shall be
assigned by Seller to Purchaser  and all sums  received by Seller in  connection
therewith  shall be paid  over to  Purchaser.  Seller  shall  maintain  adequate
insurance on the Premises to cover the full  replacement  value of the Buildings
without reduction for depreciation,  including  adequate rental value insurance,
so as not to be deemed a co-insurer and for actual  replacement  costs,  with no
more than a  $5,000.00  deductible  and  Seller  shall give  Purchaser  a credit
therefor on the Closing Date in case of fire or other casualty  occurring before
the Closing Date.

                  (b) Seller  shall not settle any fire or casualty  loss claims
in connection  with the Premises  without  obtaining  Purchaser's  prior written
consent.

                  (c) Seller  hereby  agrees to furnish  Purchaser  with written
notification of any such fire or casualty within  twenty-four (24) hours of such
event.


         19.      CONDEMNATION

                  (a)  Notwithstanding  anything to the  contrary  contained  in
Section  19(b)  below,  in the  event  of the  institution  of any  proceedings,
judicial,  administrative  or  otherwise,  which  shall  relate to the  proposed
material  taking of any portion of the  Premises by eminent  domain prior to the
Closing  Date,  or in the event of the  material  taking of any  portion  of the
Premises by eminent domain prior to the Closing Date,  Purchaser  shall have the
right and option to terminate this Agreement by giving the Seller written notice
to such effect at any time after its receipt of written notification of any such
occurrence. Any damage to or destruction of the Premises as a result of a taking
by eminent domain shall be deemed  "material" for purposes of this Section 19 if
the estimate of the damage,  which  estimate  shall be performed by an insurance
adjustor and Purchaser's architect,  shall exceed $100,000.00.  Should Purchaser
so  terminate  this  Agreement in  accordance  with this Section 19, the Deposit
together with interest earned thereon shall immediately be returned to Purchaser
by the Escrow Agent and upon such return,  neither  party shall have any further
liability or obligations to the other. In the event Purchaser shall not elect to
cancel  this  Agreement,  Seller  shall  assign all  proceeds  of such taking to
Purchaser, and same shall be Purchaser's sole property, and Purchaser shall have
the sole right to settle any claim in connection with the Premises.

                  (b) The  parties  hereby  agree that Seller  shall  retain the
condemnation awards, payments or compensation attributable to and resulting from
that  certain   condemnation   proceeding  by  the  New  Jersey   Department  of
Transportation  (the "DOT") for the  property  more  particularly  described  in
Exhibit "I"  annexed  hereto.  In the event that the outcome of such  proceeding
shall result in the taking by the DOT of more property than  contemplated by the
parties  in Exhibit  "I",  Purchaser  shall  receive  any  awards,  payments  or
compensation attributable to such excess taking.

         20.      REMEDIES

                  (a) In the event  Purchaser  fails to perform  on the  Closing
Date,  Purchaser's sole liability and Seller's sole recourse shall be limited to
the  amount  of the  Deposit.  Seller  agrees  that  retention  of  the  Deposit
constitutes fixed and liquidated damages resulting from Purchaser's default, and
Seller waives any other claim, at law or in equity,  either against Purchaser or
against any person, known or unknown, disclosed or undisclosed.

                  (b) (i) If, after  complying with the terms of this Agreement,
Seller  shall be unable to convey the Premises in  accordance  with the terms of
this  Agreement,  the sole obligation and liability of Seller shall be to direct
the Escrow Agent to refund to Purchaser the Deposit,  and to pay Purchaser's net
cost of examining  title,  which cost is not to exceed the charges  fixed by the
local board of title  underwriters  and  actually to be paid by  Purchaser,  and
survey charges actually to be paid by Purchaser, which charges are not to exceed
$5,000,  whereupon  this  Agreement  shall be deemed  cancelled  and the parties
hereto  shall  be  released  of  all  obligations  and  liabilities  under  this
Agreement, except those that are expressly stated to survive the cancellation or
termination of this Agreement.

                           (ii)  In the  event  of any  default  on the  part of
Seller or  Seller's  failure  to comply  with any  representation,  warranty  or
agreement in any material respect,  Purchaser shall be entitled to (a) terminate
this  Agreement  upon  notice to Seller,  in which  event the  Deposit  shall be
returned by Escrow Agent to Purchaser  and neither party shall  thereafter  have
any further  obligations  under this  Agreement  (b) commence an action  against
Seller seeking specific performance of Seller's obligations under this Agreement
or (c) in the event of a willful default by Seller, Purchaser may pursue any and
all of its remedies at law or in equity or any combination thereof.

                  (c) The acceptance of the Deed by Purchaser  shall be deemed a
full performance and discharge of every agreement and obligation of Seller to be
performed  under this Agreement,  except those,  if any, which are  specifically
stated in this Agreement to survive the Closing.


         21.      ASSESSMENT

                  If, on the Closing  Date,  the  Premises  or any part  thereof
shall be or shall have been affected by an assessment or  assessments  which are
or may become payable in annual installments,  of which the first installment is
either  then a charge or lien or has been paid,  then for the  purposes  of this
Agreement all the unpaid  installments of any such  assessment,  including those
which are to become due and payable after the Closing  Date,  shall be deemed to
be due and  payable  and to be liens  upon the  Premises  and  shall be paid and
discharged by Seller on the Closing Date.


         22.      CLOSING

                  The closing and  delivery  of the Deed (the  "Closing")  shall
take place at the offices of Pryor,  Cashman,  Sherman & Flynn, 410 Park Avenue,
New York,  New York 10022 on or about the Closing  Date.  Upon notice to Seller,
Purchaser may elect to accelerate  the Closing Date to a date not less than five
(5) days after the date of Purchaser's notice.


         23.      NOTICE

                  All  notices,  demands,  requests,  or other  writings in this
Agreement provided to be given or made or sent, or which may be given or made or
sent,  by either  party  hereto to the  other or by  Escrow  Agent,  shall be in
writing  and shall be  delivered  by  depositing  the same  with any  nationally
recognized  overnight delivery service, or by telecopy or fax machine, in either
event with all transmittal  fees prepaid,  properly  addressed,  and sent to the
following addresses:

       If to Purchaser:          Century Plaza Associates
                                 c/o Cali Realty Acquisition Corporation
                                 11 Commercial Drive
                                 Cranford, New Jersey  07016
                                 Attn: John J. Cali and Roger W. Thomas, Esq.
                                 (908) 272-8000 (tele.)
                                 (908) 272-6755 (fax)

       with a copy to:           Andrew S. Levine, Esq.
                                 Pryor, Cashman, Sherman & Flynn
                                 410 Park Avenue
                                 New York, New York  10022
                                 (212) 326-0414 (tele.)
                                 (212) 326-0806 (fax)

       If to Seller:             Mr. C. Lawrence Keller
                                 Keller Carnegie Associates
                                 103 Carnegie Ceter
                                 Princeton, New Jersey  08540
                                 (609) 452-8880 (tele.)
                                 (609) 520-1730 (fax)

       with a copy to:           George C. Witte, Jr., Esq.
                                 McCarter & English
                                 Four Gateway Center
                                 100 Mulberry Street
                                 Newark, New Jersey  07101
                                 (201) 622-4444 (tele.)
                                 (201) 624-7070 (fax)

       If to Escrow Agent:       First American Title Insurance Company
                                 228 East 45th Street
                                 New York, New York 10017
                                 (212) 922-9700
                                 (212) 922-0881

or to such other  address  as either  party may from time to time  designate  by
written  notice  to the  other  or to the  Escrow  Agent.  Notices  given by (i)
overnight  delivery  service as aforesaid shall be deemed received and effective
on the first  business day  following  such  dispatch  and (ii)  telecopy or fax
machine shall be deemed given at the time and on the date of machine transmittal
provided same is sent prior to 4:00 p.m. on a business day (if sent later,  then
notice shall be deemed given on the next  business day) and if the sending party
receives a written send verification on its machines and forwards a copy thereof
by regular  mail  accompanied  by such notice or  communication.  Notices may be
given by counsel for the parties  described  above,  and such  Notices  shall be
deemed  given by  Purchaser  or  Seller,  as the case may be,  for all  purposes
hereunder.


         24.      ESCROW AGREEMENT

                  Upon the signing of this  Agreement by the parties,  Purchaser
shall  deliver the Deposit to Escrow  Agent.  The parties agree that the Deposit
shall be held by the Escrow Agent in escrow and  disposed of only in  accordance
with the provisions of this Section 24. The parties agree that if the Deposit is
cash, such cash shall be invested in an assignable interest-bearing  certificate
of deposit,  money market fund, treasury bill or other similar security approved
by Seller and  Purchaser,  and all interest  accruing  thereon  shall be paid to
Purchaser, except as otherwise provided herein.

                  (a) The Escrow  Agent will deliver the Deposit to Seller or to
Purchaser, as the case may be, under the following conditions:

                           (i) To Seller on the Closing Date;

                           (ii)  To  Seller  upon  receipt  of  written   demand
therefor, such demand stating that Purchaser has defaulted in the performance of
this  Agreement  and  specifically  setting  forth the  facts and  circumstances
underlying such default. The Escrow Agent shall not honor such demand until more
than five (5) days have elapsed after the Escrow Agent has mailed a copy of such
demand to Seller or Purchaser,  as the case may be, nor thereafter if the Escrow
Agent  shall  have  received  written  notice of  objection  from  Purchaser  in
accordance with the provisions of clause (b) of this Section 24; or

                           (iii) To  Purchaser  upon  receipt of written  demand
therefor,  such  demand  stating  that this  Agreement  has been  terminated  in
accordance  with  the  provisions   hereof,  or  Seller  has  defaulted  in  the
performance  of this  Agreement,  and  specifically  setting forth the facts and
circumstances  underlying the same. The Escrow Agent shall not honor such demand
until more than five (5) days have  elapsed  after the Escrow Agent has mailed a
copy of such demand to Seller or Purchaser,  as the case may be, nor thereafter,
if the Escrow Agent shall have  received  written  notice of objection  from the
other party in accordance with the provisions of clause (b) of this Section 24.

                  (b) Upon the  filing of a written  demand  for the  Deposit by
Purchaser or Seller,  pursuant to subclause  (ii) or (iii) of clause (a) of this
Section 24, the Escrow  Agent shall  promptly  mail a copy  thereof to the other
party.  The other  party  shall have the right to object to the  delivery of the
Deposit by filing  written notice of such objection with the Escrow Agent at any
time  within  five  (5) days  after  the  mailing  of such  copy to it,  but not
thereafter.  Such notice shall set forth the basis for objecting to the delivery
of the Deposit.  Upon receipt of such  notice,  the Escrow Agent shall  promptly
mail a copy thereof to the party who filed the written demand.

                  (c) In the event the  Escrow  Agent  shall have  received  the
notice of objection provided for in clause (b) above and within the time therein
prescribed,  the Escrow Agent shall  continue to hold the Deposit  until (i) the
Escrow Agent  receives  written  notice from Seller and Purchaser  directing the
disbursement  of said  Deposit,  in which  case,  the  Escrow  Agent  shall then
disburse said Deposit in accordance with said direction, or (ii) in the event of
litigation  between  Seller and  Purchaser,  the Escrow Agent shall  deliver the
Deposit to the Clerk of the Court in which said litigation is pending,  or (iii)
the Escrow  Agent takes such  affirmative  steps as the Escrow Agent may, in the
Escrow  Agent's  reasonable  opinion,  elect in order to  terminate  the  Escrow
Agent's duties  including,  but not limited to,  depositing the Deposit with the
Court and bringing an action for interpleader,  the costs thereof to be borne by
whichever of Seller or Purchaser is the losing party.

                  (d) The  Escrow  Agent  may act upon any  instrument  or other
writing  believed  by it in  good  faith  to be  genuine  and to be  signed  and
presented by the proper person and it shall not be liable in connection with the
performance  of any duties  imposed upon the Escrow Agent by the  provisions  of
this Agreement, except for damage caused by the Escrow Agent's own negligence or
willful  default.  The Escrow  Agent  shall  have no duties or  responsibilities
except  those set  forth  herein.  The  Escrow  Agent  shall not be bound by any
modification  of this  Agreement,  unless the same is in  writing  and signed by
Purchaser and Seller,  and, if the Escrow Agent's duties hereunder are affected,
unless Escrow Agent shall have given prior written consent thereto. In the event
that the Escrow  Agent shall be  uncertain  as to the Escrow  Agent's  duties or
rights hereunder,  or shall receive instructions from Purchaser or Seller which,
in the  Escrow  Agent's  opinion,  are in  conflict  with any of the  provisions
hereof,  the  Escrow  Agent  shall be  entitled  to hold and apply  the  Deposit
pursuant  to clause  (c) above and may  decline  to take any other  action.  The
Escrow Agent shall not charge a fee for its services as escrow agent.

         25.      ASSIGNMENT.

                  Purchaser shall have the right, at its sole option,  to assign
its rights hereunder to First American  Exchange  Corporation or to an affiliate
of Purchaser upon written notice to Seller.  Seller shall,  within five (5) days
after  receiving such notice,  consent to such  assignment.  No such  assignment
shall relieve Purchaser of its obligations hereunder.


         26.      ENVIRONMENTAL REPRESENTATIONS

                  (a)  Seller  represents  and  warrants  that (a)  there are no
Hazardous  Materials on or at the Premises,  except those in compliance with all
applicable federal, state and local laws, ordinances, rules and regulations; (b)
no owner or  occupant  nor any  prior  owner or  occupant  of the  Premises  has
received  any notice or advice  from any  Governmental  Authority  or any source
whatsoever  with  respect to  Hazardous  Materials  on,  from or  affecting  the
Premises;  (c) no  portion of the  Premises  has ever been used by Seller or any
former owner, occupant or operator to generate,  manufacture,  refine,  produce,
treat,  store,  handle,  dispose of,  transfer,  process or transport  Hazardous
Materials,  whether or not any of those  parties has  received  notice or advice
from any  Governmental  Authority or other source with respect  thereto;  (d) no
portion of the Premises is now, or has ever been used as a "Major Facility," and
Seller has not used, and does not intend to use, any portion of the Premises for
that purpose;  and (e) Hazardous  Materials have not been  transported  from the
Premises to another  location  which is not in  compliance  with all  applicable
federal,  state or local environmental laws, regulations or permit requirements.
Seller  covenants  that the Premises has been kept free of Hazardous  Materials,
and neither  Seller nor any  occupant  of the  Premises  has used,  transported,
stored,  disposed  of or in any manner  dealt with  Hazardous  Materials  on the
Premises,  except in compliance  with all  applicable  federal,  state and local
laws, ordinances,  rules and regulations.  Seller has complied with, and ensures
compliance by all occupants of the Premises with, all applicable federal,  state
and local laws,  ordinances,  rules and  regulations,  and has kept the Premises
free and clear of any liens imposed pursuant to such laws, ordinances,  rules or
regulations.  In the event that  Seller  receives  any notice or advice from any
governmental agency or any source whatsoever with respect to Hazardous Materials
on, from or affecting the Premises, Seller shall immediately notify Purchaser.

                  (b)  Seller  represents  and  warrants  that no lien  has been
attached  to the  Premises  as a result of any action by the  Commission  of the
NJDEP  or its  successor  or its  designee  pursuant  to the  New  Jersey  Spill
Compensation Fund as such term is defined in the Spill Act expending monies from
said fund to pay for "cleanup and removal costs" or "natural  resources" damages
as a  result  of any  "discharge"  of any  "hazardous  substances"  on or at the
Premises, as such terms are defined in the Spill Act. Seller further represents,
covenants  and agrees  that  Seller  has not in the past,  and does not now own,
operate or control any Major  Facility or any hazardous or solid waste  disposal
facility.

                  (c) Notwithstanding anything to the contrary contained in this
Agreement, the obligation of the Purchaser to pay the Cash Payment and otherwise
close  title  to the  Premises  on the  Closing  Date  shall be  subject  to the
condition that Seller obtain a Letter of Non-Applicability pursuant to ISRA from
the Industrial Site Evaluation Element or its successor  (hereinafter called the
"Element") of the NJDEP, on or before the Closing Date  (hereinafter  called the
"ISRA  Compliance  Date").  If this  condition is not satisfied on or before the
ISRA  Compliance  Date,  Purchaser  shall  have  the  right to  extend  the ISRA
Compliance  Date or to terminate this  Agreement,  in which event this Agreement
shall be rendered null and void and of no further force or effect,  Seller shall
promptly  reimburse  Purchaser  for the costs of  obtaining  its  title  search,
appraisal  and any survey of the  Premises  obtained by  Purchaser,  the Deposit
shall  promptly be paid to  Purchaser,  and neither party shall have any further
liability or obligation to the other under or by virtue of this Agreement.

                  (d)  Seller  shall  provide  Purchaser  with all  information,
reports,  studies  and  analysis  which  Seller  delivered  to the NJDEP for the
application and issuance of the Letter of Non-Applicability.

                  (e) For purposes of this  Agreement,  the term  "Environmental
Documents" shall mean all environmental documentation in the possession or under
the control of Seller concerning the Premises or its environs including, without
limitation,  all sampling plans, cleanup plans, preliminary assessment plans and
reports,  site  investigation  plans and  reports,  remedial  investigation  and
reports, remedial action plans and reports or the equivalent,  sampling results,
sampling result quality assurance/quality control documentation,  correspondence
to or from  the  Element  or any  other  municipal,  county,  state  or  federal
Governmental  Authority,  submissions  to the  Element  or any other  municipal,
county,  state  or  federal  Governmental  Authority  and  directives,   orders,
approvals  and  disapprovals  issued by the  Element  or any other  Governmental
Authority.   Within  five  (5)  days  from  the  date  of  this  Agreement,  and
subsequently promptly upon receipt by Seller or Seller's representatives, Seller
shall  deliver to  Purchaser:  (i) all  Environmental  Documents  concerning  or
generated by or on behalf of  predecessors  in title or former  occupants of the
Premises;  (ii) all  Environmental  Documents  concerning  or generated by or on
behalf  of  Seller,   whether  currently  or  hereafter   existing;   (iii)  all
Environmental  Documents  concerning  or generated by or on behalf of current or
future occupants of the Premises,  whether currently or hereafter existing;  and
(iv) a description of all known operations,  past and present, undertaken at the
Premises,  and  existing  maps,  diagrams  and  other  Environmental   Documents
designating the location of past and present operations at the Premises and past
and present storage of hazardous or toxic  substances,  pollutants or wastes, or
fill  materials,  above or below ground,  in, on, under or about the Premises or
its environs.

                  (f) Seller shall  notify  Purchaser in advance of all meetings
scheduled  between Seller or Seller's  representatives  and NJDEP and Purchaser,
and Purchaser's  representatives  shall have the right,  without obligation,  to
attend and participate in all such meetings.

                  (g) Seller shall indemnify, defend and hold harmless Purchaser
from and against all claims, liabilities,  losses, damages, penalties and costs,
foreseen or unforeseen  including,  without  limitation,  counsel,  engineering,
attorney and other  professional  or expert  fees,  which  Purchaser  may incur,
resulting directly or indirectly,  wholly or partly, from any  misrepresentation
or breach of warranty by Seller or by reason of  Seller's  action or  non-action
with  regard to  Seller's  obligation  under this  Section  26. Any  recovery by
Purchaser  from  Seller  under this  Section  26(g) shall be limited to Seller's
Equity in the Premises.

                  (h) This Section 26 shall survive  Closing for a period of one
(1) year unless Seller has made a willful  misrepresentation  under this Section
26 whereupon  the  indemnification  provisions  of this Section 26 shall survive
indefinitely  and  recovery  by  Purchaser  shall not be  limited  in any manner
whatsoever.


         27.      SECTION 1031 EXCHANGE.

                  Purchaser and First American Exchange Corporation have entered
into that certain Exchange Agreement whereby First American Exchange corporation
has agreed to act as a  qualified  intermediary  for Section  1031 tax  deferred
exchanges. Purchaser and Purchaser's designee reserves the right to include this
transaction  as part of an Internal  Revenue  Code,  Section  1031 tax  deferred
exchange for the benefit of Purchaser or Purchaser's designee.  Seller agrees to
cooperate with Purchaser,  Purchaser's  designee and any outside parties and use
reasonable  efforts to assist Purchaser and Purchaser's  designee in achieving a
Section 1031 exchange, including but not limited to, the assignment by Purchaser
of all of its rights and obligations hereunder. Seller further agrees to execute
any and all documents  (subject to the reasonable  approval of Seller's counsel)
as are reasonably necessary in connection therewith,  provided that the close of
escrow  for the  conveyance  of the  Premises  shall not be  contingent  upon or
subject to the  completion of such exchange.  Purchaser  agrees to indemnify and
hold Seller  harmless from any  extraordinary  costs,  expenses or  liabilities,
including  attorney's  fees,  incurred  by Seller  which are a direct  result of
Seller's participation in such exchange.


         28.      MISCELLANEOUS

                  (a) If any  instrument  or  deposit is  necessary  in order to
obviate a defect in or  objection or exception  to title,  the  following  shall
apply:  (i) any such  instrument  shall be in such form and shall  contain  such
terms and conditions as may be required by the Title Company to omit any defect,
objection or exception  to title,  (ii) any such deposit  shall be made with the
Title Company,  and (iii) Seller agrees to execute,  acknowledge and deliver any
such instrument and to make any such deposit.

                  (b) This Agreement  constitutes the entire  agreement  between
the  parties  and  incorporates  and  supersedes  all  prior   negotiations  and
discussions between the parties.

                  (c) This  Agreement  cannot be amended,  waived or  terminated
orally, but only by an agreement in writing signed by the party to be charged.

                  (d) This Agreement  shall be  interpreted  and governed by the
laws of the State of New Jersey and shall be binding upon the parties hereto and
their respective successors and assigns.

                  (e) Whenever in this  Agreement  there is a provision  for the
return of the  Deposit,  the  provision  shall be deemed to include all interest
earned thereon and paid to Purchaser.

                  (f) The caption headings in this Agreement are for convenience
only  and  are not  intended  to be part of  this  Agreement  and  shall  not be
construed to modify,  explain or alter any of the terms, covenants or conditions
herein contained.

                  (g) If any term,  covenant or condition  of this  Agreement is
held to be invalid,  illegal or  unenforceable  in any respect,  this  Agreement
shall be construed without such provision.

                  (h) Each party shall, from time to time, execute,  acknowledge
and deliver such further  instruments,  and perform such additional acts, as the
other party may  reasonably  request in order to  effectuate  the intent of this
Agreement.  Nothing  contained in this  Agreement  shall be deemed to create any
rights or  obligations  of  partnership,  joint  venture or similar  association
between  Seller  and  Purchaser.  This  Agreement  shall  be  given  a fair  and
reasonable construction in accordance with the intentions of the parties hereto,
and without regard to or aid of canons  requiring  construction  against Seller,
Purchaser or the party whose counsel drafted this Agreement.

                  (i) This  Agreement  shall not be effective  or binding  until
such time as it has been  executed  and  delivered by all parties  hereto.  This
Agreement may be executed by the parties  hereto in  counterparts,  all of which
together shall constitute a single Agreement.

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

                         PURCHASER

                         CENTURY PLAZA ASSOCIATES

                         By:  Cali Sub IV, Inc.,  its managing
                                   general partner

                         By: /s/
                                       Name: Roger W. Thomas
                                       Title: Vice President - General Counsel


                         SELLER

                         KELLER CARNEGIE ASSOCIATES, a New Jersey
                                  Limited Partnership

                         By:  103 Carnegie Associates, L.P., a New Jersey
                                    limited partnership


                                 By:    /s/
                                       Name:  C. Lawrence Keller
                                       Title: General Partner

                                 By: /s/
                                       Name:  Stuart R. Alpert
                                       Title: General Partner

         The undersigned  joins in the execution of the Agreement solely for the
purpose of  acknowledging  the receipt of the Deposit and its  agreement to hold
the Deposit in escrow in accordance with the terms hereof.

ESCROW AGENT

FIRST AMERICAN EXCHANGE CORPORATION

By:__/s/____________________________
      Name: Diane Schappo
      Title: Assistant Vice President




                                    Exhibit A

                                     (Land)




                                    Exhibit B

                           (List of Personal Property)






                                    Exhibit C

                              (Tenant Lease Dates)





                                    Exhibit D

                             (Permitted Exceptions)







                                    Exhibit E
                             (Estoppel Certificates)






                                    Exhibit F

                             (Assignment of Leases)







                                   SCHEDULE A

                                     Leases







                                   SCHEDULE B

                                Security Deposits







                                    Exhibit G

                                   (Rent Roll)














                                    Exhibit H

                               (Service Contracts)





                                    Exhibit I

                 (Map Setting Forth Property Under Condemnation
          Proceeding with the New Jersey Department of Transportation)






                                    Exhibit J

                           (Tax Reduction Proceeding)

None.






                                    Exhibit K

                    (Certain Identifiable Costs and Expenses)






                                    Exhibit L

                        (Schedule of Leasing Commissions)