AMERICAN GENERAL HOSPITALITY CORP
8-K, 1997-07-09
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549



                                   FORM 8-K



                                CURRENT REPORT
    PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934


        DATE OF REPORT (Date of earliest event reported) JUNE 25, 1997



                   AMERICAN GENERAL HOSPITALITY CORPORATION
            (Exact Name of Registrant as Specified in its Charter)






         MARYLAND                     1-11903           75-2648842
(State or other jurisdiction        (Commission         (IRS Employer
     of incorporation)              File Number)        Identification No.)
 




     3860 W. NORTHWEST HIGHWAY, SUITE 300, DALLAS, TEXAS       75220
           (Address of principal executive offices)         (Zip Code)



       REGISTRANTS TELEPHONE NUMBER, INCLUDING AREA CODE: (214) 904-2000
<PAGE>
 
ITEM 2.   ACQUISITION OR DISPOSITION OF ASSETS

          On June 25, 1997 (i) American General Hospitality Operating
Partnership, L.P. (the "Operating Partnership"), a subsidiary of American
General Hospitality Corporation (the "Company" or "Registrant") acquired the
Marriott Hotel West Loop and the connected office building, 1700 West Loop
Office Tower and (ii) Lake Buena Vista Partners, Ltd. ("LBV Partners"), a
subsidiary of the Operating Partnership acquired the Radisson Twin Towers Hotel
and Convention Center, (together the "MUI Acquisition Hotels") from entities
unaffiliated with the Company and the Operating Partnership. The aggregate
purchase price of the MUI Acquisition Hotels was approximately $115.7 million.
The purchase price was arrived at through arms-length negotiations. A
description of the hotels and an allocation of the purchase price is as follows:

 .         MARRIOTT HOTEL WEST LOOP AND CONNECTED OFFICE BUILDING - On June 25,
          1997 the Operating Partnership acquired the 302 room Marriott Hotel
          and the connected 12 story, 256,000 square foot office building
          located in Houston, Texas from 1700/1750 West Loop S. Limited
          Partnership for an allocated purchase price of approximately $38.1
          million. The Operating Partnership expects to maintain the Marriott
          affiliation and invest approximately $6.1 million to upgrade the hotel
          facilities.

          The Marriott West Loop is leased by the Operating Partnership to AGH
          Leasing, L.P. (the "Lessee") pursuant to a twelve-year participating
          lease which is substiantially similar in form to the Operating
          Partnership's other hotel leases. Effective with the purchase of the
          property, the economic terms of the participating lease provide for
          the payment of annual rent equal to the greater of (i) base rent of
          $2,354,000 or (ii) participating rent equal to the following
          percentages of the respective revenues: Rooms: 20% of the first
          $5,650,000; 65% of the next $1,091,000; and 72.5% thereafter; Food &
          Beverage: 10% of the first $2,217,000; 12.5% thereafter; Telephone &
          Other: 25%. Effective January 1, 1998, the participating lease
          provides for the payment of annual rent equal to the greater of (i)
          base rent of $2,680,000 or (ii) participating rent equal to the
          following percentages of the respective revenues: Rooms: 20% of the
          first $5,179,000; 65% of the next $1,598,000; and 72.5% thereafter;
          Food & Beverage: 10% of the first $2,300,000; 12.5% thereafter;
          Telephone & Other: 25%. Effective January 1, 1999, the participating
          lease provides for the payment of annual rent equal to the greater of
          (i) base rent of $2,781,000 or (ii) participating rent equal to the
          following percentages of the respective revenues: Rooms: 20% of the
          first $5,477,000; 65% of the next $1,248,000; and 72.5% thereafter;
          Food & Beverage: 10% of the first $2,386,000; 12.5% thereafter;
          Telephone & Other: 25%. Effective January 1, 2000, base rent will
          increase annually by the percentage increase in the Consumer Price
          Index ("CPI") and participating tiers will increase by CPI plus .75%.

          The Lessee has entered into a twelve-year management agreement, on
          terms substantially similar to the Lessee's other management
          agreements, with American General Hospitality, Inc. ("AGHI") to manage
          the hotel on behalf of the Lessee and subject to its supervision.

          The office building is currently 68% occupied. Two major leases are in
          the process of being negotiated which, if consummated, would increase
          the occupancy to approximately 80%. The Operating Partnership has
          engaged the office buildings' current manager and leasing agent,
          Premisys, a subsidiary of Prudential Life Insurance, to manage and
          lease the office building. The office building, which is not part of
          the Company's business strategy, is not intended to be a long-term
          asset.

 .         RADISSON TWIN TOWERS HOTEL AND CONVENTION CENTER - On June 25, 1997
          LBV Partners acquired the 742 room Radisson Twin Towers Hotel located
          in Orlando, Florida from Zenith Properties (Orlando), Limited
          Partnership ("Zenith") for an allocated purchase price of
          approximately $77.6 million. LBV Partners expects to invest
          approximately $14.3 million to upgrade and renovate the guest rooms
          and public areas.

          The Radisson Twin Towers Hotel is leased by LBV Partners to Twin
          Towers Leasing, L.P. ("Twin Towers Leasing") pursuant to a twelve-year
          participating lease which is substiantially similar in form to the
          Operating Partnership's other hotel leases. Twin Towers Leasing is
          owned 51% by the Lessee, which is the sole general partner, and 49% by
          Regent Carolina Corporation, which is the sole limited partner. Regent
          Carolina Corporation is the parent of Zenith.

                                       2
<PAGE>
 
          Effective with the purchase of the property, the economic terms of the
          participating lease provide for the payment of annual rent equal to
          the greater of (i) base rent of $5,881,000 or (ii) participating rent
          equal to the following percentages of the respective revenues: Rooms:
          30% of the first $4,172,000; 65% of the next $1,364,000; and 75%
          thereafter; Food & Beverage: 10% of the first $4,705,000; 15%
          thereafter; Telephone & Other: 35%. Effective January 1, 1998, the
          participating lease provides for the payment of annual rent equal to
          the greater of (i) base rent of $6,298,000 or (ii) participating rent
          equal to the following percentages of the respective revenues: Rooms:
          30% of the first $9,516,000; 65% of the next $1,715,000; and 75%
          thereafter; Food & Beverage: 10% of the first $4,882,000; 15%
          thereafter; Telephone & Other: 35%. Effective January 1, 1999, the
          participating lease provides for the payment of annual rent equal to
          the greater of (i) base rent of $6,534,000 or (ii) participating rent
          equal to the following percentages of the respective revenues: Rooms:
          30% of the first $12,300,000; 65% of the next $2,960,000; and 75%
          thereafter; Food & Beverage: 10% of the first $5,065,000; 15%
          thereafter; Telephone & Other: 35%. Effective January 1, 2000, base
          rent will increase annually by the percentage increase in the CPI and
          participating tiers will increase by CPI plus .75%.

          Twin Towers Leasing has entered into a twelve-year management
          agreement, on terms substantially similar to the Lessee's other
          management agreements with AGHI to manage the hotel on behalf of Twin
          Towers Leasing and subject to its supervision.

          The cash required to purchase the MUI Acquisition Hotels was provided
from borrowings under the Operating Partnership's Line of Credit.

          The Company currently owns an approximate 87.1% interest in the
Operating Partnership. AGH GP, Inc., a wholly owned subsidiary of the Company,
is the sole general partner of the Operating Partnership and owns a 1.0%
interest in the Operating Partnership. AGH LP, Inc., also a wholly owned
subsidiary of the Company, owns an 86.1% limited partnership interest in the
Operating Partnership. The remaining 12.9% is held by the former owners of the
hotels acquired by the Operating Partnership.

                                       3
<PAGE>
 
ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

(a), (b) As it is currently impracticable for the Company to provide the
     financial statements required by this Item 7, the Company will file by
     amendment to the Report the required financial information as soon as
     practicable, but not later than 60 days after the date on which this report
     was required to have been filed.

(c)  Exhibits

          Exhibit No.                    Description
          -----------                    ----------- 
   
          2.1       Hotel Purchase Agreement by and between American General
                      Hospitality Operating Partnership, L.P. and 1700/1750 West
                      Loop S. Limited Partnership and Zenith Properties
                      (Atlanta), Inc. and Zenith Properties (Orlando), Limited
                      Partnership dated April 15, 1997

          2.2       First Amendment to Hotel Purchase Agreement by and between
                      American General Hospitality Operating Partnership, L.P.
                      1700/1750 West Loop S. Limited Partnership and Zenith
                      Properties (Atlanta), Inc. and Zenith Properties
                      (Orlando), Limited Partnership dated April 15, 1997

                                       4
<PAGE>
 
Pursuant to the requirements of the Securities and Exchange Act of 1934. the
Registrant has duly caused the report to be signed on its behalf by the
undersigned thereunto duly authorized.


Dated:  July 9, 1997

                    American General Hospitality Corporation
                    (Registrant)



                    By:  /s/ Kenneth E. Barr
                         ------------------------------------------
                    Kenneth E. Barr
                    Executive Vice President and
                    Chief Financial Officer
                    (Principal Financial Officer)

                                       5

<PAGE>
 
                                                                     EXHIBIT 2.1

                          PURCHASE AND SALE AGREEMENT


                                BY AND BETWEEN


                  1700/1750 WEST LOOP S. LIMITED PARTNERSHIP
                                      and
                       ZENITH PROPERTIES (ATLANTA), INC.
                                      and
               ZENITH PROPERTIES (ORLANDO), LIMITED PARTNERSHIP

                            COLLECTIVELY AS SELLER
                                      AND

                         AMERICAN GENERAL HOSPITALITY
                          OPERATING PARTNERSHIP, L.P.

                                   AS BUYER

                                    FOR THE

                         MARRIOTT HOTEL WEST LOOP AND
                  1700 WEST LOOP OFFICE TOWER, HOUSTON, TEXAS
                                      and
                   RADISSON HOTEL ATLANTA, ATLANTA, GEORGIA
                                      and
               RADISSON TWIN TOWERS HOTEL AND CONVENTION CENTER,
                               ORLANDO, FLORIDA


                                  DATED AS OF

                                April 15, 1997
<PAGE>
 
Section                                                                 Page No.

1.   DEFINITIONS.........................................................  1

2.   PURCHASE AND SALE...................................................  10
     2.1  Conveyance of Property.........................................  10
          ----------------------
     2.2  Excluded Items.................................................  11
          --------------

3.   PURCHASE PRICE......................................................  11
     3.1  Deposit........................................................  11
          -------
     3.2  Additional Deposit.............................................  12
          ------------------
     3.3  Non-Refundable Fee.............................................  12
          ------------------
     3.4  Consumables....................................................  13
          -----------
     3.5  Cash Balance...................................................  13
          ------------
     3.6  Allocation of Purchase Price...................................  13
          ----------------------------

4.   DUE DILIGENCE PERIOD................................................  13
     4.1  Matters To Be Reviewed.........................................  13
          ----------------------
     4.2  Delivery of Copies;............................................  13
          -------------------
     4.3  Title and Title Commitment.....................................  17
          --------------------------
     4.4  Buyer's Right to Terminate the Agreement.......................  20
          ----------------------------------------

5.   ENTRY ON PROPERTY...................................................  20

6.   PROPERTY "AS-IS"....................................................  22
     6.1  No Side Agreements or Representations; As-is Purchase..........  22
          -----------------------------------------------------
     6.2  Release........................................................  22
          -------
     6.3  Estoppel Certificates..........................................  23
          ---------------------
     6.4  Survival.......................................................  23
          --------

7.   CONDITIONS TO CLOSING...............................................  23

7.1  Conditions Precedent to Buyer's Obligations.........................  23
     -------------------------------------------
7.2  Conditions Precedent to Seller's Obligations........................  23
     --------------------------------------------

8.   DELIVERIES AT CLOSING...............................................  24
     8.1  By Seller......................................................  24
          ---------
     8.2  By Buyer ......................................................  25
          --------
     8.3  By Buyer and Seller............................................  26
          -------------------
     8.4  By Escrow Agent to Seller and Buyer............................  27
          -----------------------------------

9.   COSTS AND EXPENSES..................................................  27
     9.1  Buyer's Costs..................................................  27
          -------------
<PAGE>
 
Section                                                                 Page No.

      9.2  Equal Division of Costs.......................................  27
           -----------------------
      9.3  Seller's Costs................................................  27
           --------------
      9.4  Other Costs...................................................  28
           -----------
 
10. ADJUSTMENTS AND PRORATIONS...........................................  28
     10.1  Prorations....................................................  28
           ----------
     10.2  Taxes and Assessments.........................................  28
           ---------------------
     10.3  Rents and Security Deposits...................................  28
           ---------------------------
     10.4  Lease Expenses................................................  29
           --------------
     10.5  Utilities.....................................................  31
           ---------
     10.6  House Banks and Other Accounts................................  31
           ------------------------------
     10.7  Personal Property.............................................  31
           -----------------
     10.8  Other  Prorations.............................................  31
           -----------------
     10.9  Method of Proration...........................................  32
           -------------------
     10.10 Closing Statement and Adjustments.............................  32
           ---------------------------------
     10.11 Accounts Receivable...........................................  32
           -------------------
     10.12 Accounts Payable..............................................  32
           ----------------
     10.13 Contracts for Capital Improvements............................  33
           ----------------------------------
     10.14 Survival......................................................  33
           --------
 
11.  SELLER'S REPRESENTATIONS, WARRANTIES AND COVENANTS..................  33
     11.1  Authority.....................................................  34
           ---------
     11.2  Actions.......................................................  34
           -------
     11.3  Due Execution.................................................  34
           -------------
     11.4  Valid and Binding.............................................  34
           -----------------
     11.5  Leases; Possession of the Property............................  34
           ----------------------------------
     11.6  Non-Foreign Entity............................................  34
           ------------------
     11.7  Violations of Laws............................................  34
           ------------------
     11.8  Suits.........................................................  34
           -----
     11.9  Collective Bargaining Agreements..............................  34
           --------------------------------
     11.10 Operational Contracts and Leases..............................  35
           --------------------------------
<PAGE>
 
Section                                                                 Page No.

     11.11  Tangible Personal Property...................................  35
            --------------------------
     11.12  Lease for Adjacent Land......................................  35
            -----------------------
     11.13  Updated Financial Statement..................................  35
            ---------------------------
     11.14  Pre-Closing Covenants........................................  35
            ---------------------
     11.15  Survival.....................................................  39
            --------
 
12.  BUYER'S REPRESENTATIONS, WARRANTIES AND COVENANTS...................  39
     12.1   Independent Investigation....................................  39
            -------------------------
     12.2   As Is Acquisition............................................  39
            -----------------
     12.3   Hazardous Substances.........................................  40
            --------------------
     12.4   Authority....................................................  40
            ---------
     12.5   Actions......................................................  40
            -------
     12.6   Due Execution................................................  40
            -------------
     12.7   Valid and Binding............................................  40
            -----------------
     12.8   Review of Documents..........................................  40
            -------------------
     12.9   Authority to Do Business.....................................  41
            ------------------------
     12.10  Waiver of Default............................................  41
            -----------------
     12.11  Survival.....................................................  41
            --------
 
13.  ASSUMPTION OF ALL OPERATIONAL CONTRACTS.............................  41
     13.1   Assignment...................................................  41
            ----------
     13.2   Consent......................................................  41
            -------
     13.3   Survival.....................................................  41
            --------
14.  TRANSFER OF LIQUOR LICENSES.........................................  41
     14.1   Acknowledgments..............................................  41
            ---------------
     14.2   Buyer's Obligation to Comply with Statutes...................  42
            ------------------------------------------
     14.3   Transfer of Licenses Not a Condition Precedent...............  42
            ----------------------------------------------
     14.4   Indemnification..............................................  42
            ---------------
     14.5   Survival.....................................................  42
            --------
15.  HAZARDOUS SUBSTANCES................................................  42
     15.1   Seller's Representations and Warranties......................  42
            ---------------------------------------
     15.2   Notices Regarding Hazardous Substances.......................  43
            --------------------------------------
     15.3   Mutual Indemnifications......................................  43
            -----------------------
     15.4   Environmental Release........................................  44
            ---------------------
     15.5   Environmental Audit..........................................  44
            -------------------
     15.6   Survival.....................................................  45
            --------
<PAGE>
 
Section                                                                 Page No.

16.  INDEMNIFICATIONS....................................................  45
     16.1   Indemnification by Buyer.....................................  45
            ------------------------
     16.2   Indemnification by Seller....................................  45
            -------------------------
     16.3   Survival.....................................................  46
            --------                                                       --
 
17.  CONDEMNATION AND DESTRUCTION........................................  47
     17.1   Eminent Domain or Taking.....................................  47
            ------------------------
     17.2   Damage or Destruction........................................  47
            ---------------------
 
18.  INSURANCE SUBSEQUENT TO THE CLOSING.................................  48
 
19.  ADVANCE BOOKINGS....................................................  48
 
20.  LICENSE, FRANCHISE AND MANAGEMENT AGREEMENT.........................  49
     20.1  General Acknowledgments.......................................  49
           -----------------------
     20.2  Marriott Franchise Agreement..................................  50
           ----------------------------
     20.3  Radisson (Atlanta) and Radisson (Orlando).....................  50
           -----------------------------------------
     20.4  Survival......................................................  50
           -------- 
 
21.  HOTEL PERSONNEL.....................................................  50
 
22.  SAFE DEPOSIT BOXES..................................................  51
 
23.  BAGGAGE INVENTORY...................................................  52
 
24.  DEFAULT; REMEDIES...................................................  52
     24.1  Default by Seller.............................................  52
           -----------------
     24.2  Default by Buyer..............................................  52
           ----------------
 
25.  ARBITRATION OF DISPUTES.............................................  53
 
26.  ASSIGNMENT..........................................................  54
 
27.  NOTICES.............................................................  55
 
28.  BROKERS.............................................................  56
 
29.  ESCROW AGENT........................................................  57
     29.1  General.......................................................  57
           -------
     29.2  Written Demand................................................  57
           --------------
<PAGE>
 
Section                                                                 Page No.

     29.3  Disposition of Deposit........................................  57
           ----------------------
     29.4  Fees..........................................................  57
           ----
 
30.  MISCELLANEOUS.......................................................  58
     30.1  Counterparts..................................................  58
           ------------
     30.2  Partial Invalidity............................................  59
           ------------------
     30.3  Possession of the Property....................................  59
           --------------------------
     30.4  Waivers.......................................................  59
           -------
     30.5  Successors and Assigns........................................  59
           ----------------------
     30.6  Professional Fees.............................................  59
           -----------------
     30.7  Entire Agreement..............................................  59
           ----------------
     30.8  Time of Essence...............................................  59
           ---------------
     30.9  Construction..................................................  59
           ------------
     30.10 Governing Law.................................................  59
           -------------
     30.11 Confidentiality...............................................  60
           ---------------
     30.12 Financing.....................................................  61
           ---------
     30.13 Survival......................................................  61
           --------
     30.14 Buyer's Individual Liabilities................................  61
           ------------------------------
     30.15 Seller's Individual Liabilities...............................  62
           -------------------------------
     30.16 Letter of Guaranty............................................  62
           ------------------
     30.17 Escrow For Unpaid Sales Taxes.................................  62
           -----------------------------
<PAGE>
 
EXHIBITS
 
 
     EXHIBIT A-1  -  LEGAL DESCRIPTION OF HOUSTON REAL PROPERTY
     EXHIBIT A-2  -  LEGAL DESCRIPTION OF ATLANTA REAL PROPERTY
     EXHIBIT A-3  -  LEGAL DESCRIPTION OF ORLANDO REAL PROPERTY
     EXHIBIT B    -  ALLOCATION OF PURCHASE PRICE
     EXHIBIT C    -  LEASES AND RENT ROLL
     EXHIBIT D    -  LIST OF OPERATIONAL CONTRACTS
     EXHIBIT E    -  LIST OF TANGIBLE PERSONAL PROPERTY
     EXHIBIT F    -  FORM OF TENANT ESTOPPEL CERTIFICATE
     EXHIBIT G    -  FORM OF SELLER'S CERTIFICATE
     EXHIBIT H    -  FORM OF SPECIAL WARRANTY DEED
     EXHIBIT I    -  FORM OF FIRPTA CERTIFICATE
     EXHIBIT J    -  FORM OF BILL OF SALE
     EXHIBIT K    -  FORM OF ASSIGNMENT AND ASSUMPTION OF LEASES AND SECURITY 
                     DEPOSITS
     EXHIBIT L    -  FORM OF TENANT NOTICE
     EXHIBIT M    -  FORM OF ASSIGNMENT AND ASSUMPTION OF CONTRACTS
     EXHIBIT N    -  FORM OF ASSIGNMENT AND ASSUMPTION OF INTANGIBLE PERSONAL 
                     PROPERTY
     EXHIBIT O    -  FORM OF NO LIEN, POSSESSION AND GAP AFFIDAVIT
     EXHIBIT P    -  WRITTEN NOTICES OF VIOLATIONS OF MUNICIPAL, STATE, OR 
                     FEDERAL LAW, ORDINANCE, REGULATION OR CODE RECEIVED BY 
                     SELLER
     EXHIBIT Q    -  ACTIONS, SUITS, LITIGATION OR CONDEMNATION PROCEEDINGS AS 
                     TO WHICH SELLER HAS BEEN SERVED WITH LEGAL PROCESS
     EXHIBIT R    -  CONTRACTS FOR CAPITAL IMPROVEMENTS
     EXHIBIT S    -  ENVIRONMENTAL REPORTS

(The schedules and exhibits have been omitted, but shall be provided to the 
Commission upon request.)

<PAGE>
 
                          PURCHASE AND SALE AGREEMENT


     THIS  PURCHASE AND SALE AGREEMENT ("AGREEMENT") is made and entered into as
of April 15, 1997, by and between 1700/1750 WEST LOOP S. LIMITED PARTNERSHIP,
ZENITH PROPERTIES (ATLANTA), INC., AND ZENITH PROPERTIES (ORLANDO) LIMITED
PARTNERSHIP  (hereinafter collectively referred to as "SELLER"), and AMERICAN
GENERAL HOSPITALITY OPERATING PARTNERSHIP, L.P., together with its successors
and permitted assigns (hereinafter referred to as "BUYER").

     Buyer and Seller agree as follows:

SECTION 1/1/.  DEFINITIONS.

     For the purposes of this Agreement, the following capitalized terms shall
be defined as follows:

     (a)  "ACCOUNTS RECEIVABLE": Shall mean accounts receivable generated from
the operation of the Property for the period of time prior to the Cut-Off Time;
provided, however that the term "Accounts Receivable" shall not include specific
items which are otherwise subject to adjustment and proration in accordance with
Section 10 hereof.
- ----------

     (b)  "ACCOUNTS PAYABLE": Shall mean accounts payable  incurred as the
result of  the operation of the Property for the period of time prior to the
Cut-Off Time, including, but not limited to, all unpaid federal, state and local
taxes (other than real estate and personal property taxes), employment taxes,
occupancy taxes, excise taxes and sales taxes assessed against the Property or
its operation, or against Seller; provided, however that the term "Accounts
Payable" shall not include specific items which are otherwise subject to
adjustments and prorations in accordance with Section 10 hereof.
                                              ----------        

     (c) "ACTUAL KNOWLEDGE OF BUYER":  Shall mean, and be limited to, the actual
knowledge of  Bruce Wiles, Kenneth Barr,  and Russ Valentine,  after due inquiry
of Buyer's employees and agents conducting the due diligence investigation of
the Property.  Buyer represents that Kenneth Barr, Bruce Wiles and Russ
Valentine are the officers of  Buyer primarily responsible for  Buyer's due
diligence analysis of the Property.

     (d) "ACTUAL KNOWLEDGE OF SELLER":  Shall mean, and be limited to, the
actual 
- ------------                                        
     /1/All references to "Section" shall refer to Section numbers of this 
                           -------
        Agreement.

                                       1
<PAGE>
 
knowledge of George Tang and Angie Yam, after due inquiry of the Manager. Seller
represents that George Tang and Angie Yam are the two employees of Seller most
knowledgeable concerning the Property.

     (e)  "ASSIGNMENT AND ASSUMPTION OF CONTRACTS":  Shall  mean the document
described in Section 8.1(g) hereof.
             --------------        

     (f)  "ASSIGNMENT AND ASSUMPTION OF INTANGIBLE PERSONAL PROPERTY":  Shall
mean the document described in Section 8.1(h) hereof.
                               --------------        

     (g)  "ASSIGNMENT AND ASSUMPTION OF LEASES":  Shall  mean the document
described in Section 8.1(d) hereof.
             --------------        

     (h) "ATLANTA REAL PROPERTY":  Shall mean  that certain real property
located in the County of Fulton, State of Georgia described in Exhibit A-2, upon
which the Radisson Hotel, having a street address of 165 Courtland Street,
Atlanta, Georgia is located, together with all of Seller's right, title and
interest, if any, in and to all rights-of-way, streets, alleys, easements, and
strips or gores of land appurtenant to the aforedescribed real property.

     (i)  "BENEFIT PLANS":  Shall mean any of the following relating to Property
Employees: (i) employee pension plan as defined in Section 3(2) of the Employees
Retirement Income Security Act of 1974, as amended ("ERISA"), (ii) employee
welfare benefit plans as defined in Section 3(1) of ERISA, (iii) any profit
sharing, pension, deferred compensation, bonus, stock option, stock purchase,
severance or incentive plan or agreement, or (iv) any plan or policy providing
for "fringe benefits" to employees, including, without limitation, health plans
and benefits, vacation, paid holidays, sick leave, personal leave, employee
discount, education benefit or similar programs.

     (j )  "BILL OF SALE":  Shall  mean the document described in Section 8.1(c)
                                                                  -----------   
hereof.

     (k)  "BROKER" OR "BROKERS":  Shall mean the individual or collective
reference to Mr. Greg Rice, Solid Rock Advisors, Inc., Honolulu, Hawaii, which
is the Seller's Broker ("Seller's Broker").  Buyer has engaged no Broker
relative to the transaction contemplated by this Agreement.
 
     (l)  "CLOSING":  Shall mean the closing of the transaction contemplated by
this Agreement at a location to be mutually agreed upon by Seller and Buyer.

     (m)  "CLOSING DATE":  Shall mean July 1, 1997 which is the last date on
which the Closing can occur, unless (i) Buyer exercises its extension rights as
set forth in Section 3.2 
                     ---

                                       2
<PAGE>
 
to extend the Closing Date, in which case the Closing Date shall be July 15,
- ---------------------------
1997 or (ii) the Closing Date is extended pursuant to Section 4.3 (g)

     (n)  "CONSUMABLES":  Shall mean all unopened cartons of consumables,
including food and beverage consumables and non-food and beverage consumables,
merchandise held for sale to the public, and  linens exceeding 3-par owned by
Seller and located at the Property and used in connection with the ownership,
operation and/or maintenance of the Property as of the Closing Date.

     (o)  "CONTRACTS FOR CAPITAL IMPROVEMENTS":  Shall mean those contracts for
capital improvements to the Property entered into by Seller prior to the
Effective Date as set forth in Exhibit S.

     (p)  "CUT-OFF TIME":  Shall mean 12:01 a.m. on the Closing Date.

     (q)  "DEED":  Shall have the meaning given thereto in Section 8.1(a)
                                                           --------------
hereof.

     (r)  "DEPOSIT":  Shall mean the earnest money deposit  of $ 7,500,000 in
the form of cash or an irrevocable, unconditional letter of credit in favor of
and reasonably satisfactory to Seller which shall be deposited into escrow with
Escrow Agent on or before the  second business day following the execution of
this Agreement by both Seller and Buyer, plus all interest earned thereon as set
forth in Section 3.1 hereof.
         -----------        

     (s)  "DOCUMENTS":  Shall mean documents relating to the items described
in Section 4.1 hereof.
   -----------        
     (t)  "DUE DILIGENCE PERIOD":  Shall mean the forty-five (45) day period
starting on the Effective Date and ending at 5:00 p.m. Eastern  time on May 30,
1997.

     (u)  "EFFECTIVE DATE":  Shall mean the date of this Agreement, April 15,
1997, which shall be the date this Agreement is fully executed and from which
all dates in this Agreement are measured.

     (v)  "EMPLOYEE CONTRACTS":  Shall mean  all contracts, agreements and
commitments, oral or written, including collective bargaining, labor and
individual employee agreements, relating to the  Property Employees.

     (w)  "ENVIRONMENTAL AUDIT":  Shall mean any environmental audit, review or
testing of the Property performed by Buyer or any third party or consultant
engaged by Buyer to conduct such study.

                                       3
<PAGE>
 
     (x)  "ENVIRONMENTAL LAW":  Shall mean any law, statute, ordinance or
regulation pertaining to health, industrial hygiene or the environment,
including, without limitation, CERCLA (Comprehensive Environmental Response,
Compensation and Liability Act of 1980) and RCRA (Resources Conservation and
Recovery Act of 1976).

     (y)  "ENVIRONMENTAL REPORT(S)":  Shall mean those certain environmental
reports, surveys, assessments, and/or audits set forth on Exhibit S to be
furnished by Seller to Buyer within ten (10) days after the Effective Date.

     (z)  "ESCROW AGENT":  Shall mean Commonwealth Land Title Company of Dallas.

     (aa) "EXCLUDED ITEMS":  Shall mean those items set forth in 
Section 4.2(b) hereof.
- --------------

     (bb) "EXHIBITS":  Shall mean the following exhibits, each of which  shall
be attached hereto to this Agreement or attached subsequently as provided herein
and which are incorporated herein by reference:
 
     Exhibit A-1  -  Legal Description of Houston Real Property
     Exhibit A-2  -  Legal Description of Atlanta Real Property
     Exhibit A-3  -  Legal Description of Orlando Real Property
     Exhibit B    -  Allocation of Purchase Price
     Exhibit C    -  List of Leases and Rent Roll
     Exhibit D    -  List of the  Operational Contracts
     Exhibit E    -  List of Tangible Personal Property
     Exhibit F    -  Form of Tenant Estoppel Certificate
     Exhibit G    -  Form of Seller's Certificate
     Exhibit H    -  Form of Special Warranty Deed
     Exhibit I    -  Form of FIRPTA Certificate
     Exhibit J    -  Form of Bill of Sale
     Exhibit K    -  Form of Assignment and Assumption of Leases and Security
                     Deposits
     Exhibit L    -  Form of Tenant Notice
     Exhibit M    -  Form of Assignment and Assumption of Contracts
     Exhibit N    -  Form of Assignment and Assumption of Intangible Personal
                     Property
     Exhibit O    -  Form of No Lien, Possession and Gap Affidavit
     Exhibit P    -  Written Notices of Violations of Municipal, County, State, 
                     or Federal Law, Ordinance, Regulation or Code Received by
                     Seller
     Exhibit Q    -  Actions, Suits, Litigation or Condemnation Proceedings as 
                     to 

                                       4
<PAGE>
 
                     Which Seller Has Been Served With Legal Process
     Exhibit R    -  Contracts for Capital Improvements
     Exhibit S    -  Environmental Reports

     (cc)  "EXTENDED DUE DILIGENCE PERIOD":  Shall mean  the additional fifteen
(15) day period beginning at the end of the Due Diligence Period and ending at
5:00 p.m. Eastern Time on June 16, 1997 as set forth in Section 3.2 hereof.
                                                        -----------        

     (dd)  "FIRPTA CERTIFICATE":  Shall mean the document described in Section
                                                                       -------
8.1(b) hereof.
- ------        

     (ee)  "HAZARDOUS SUBSTANCE":  Shall mean any substance, material or waste
which is or becomes designated, classified or regulated as being "toxic" or
"hazardous" or a "pollutant" or which is or becomes similarly designated,
classified or regulated, under any Environmental Law, including but not limited
to asbestos, petroleum and petroleum products.

     (ff)  "HOTEL":  Shall collectively mean those certain hotels commonly known
as the Marriott Hotel West Loop, having a street address of 1700 West Loop
South, Houston, Texas,  the Radisson Hotel Atlanta, having a street address of
165 Courtland Street, Atlanta, Georgia, and the Radisson Twin Towers Hotel and
Convention Center, Orlando,  having a street address of 5780 Major Blvd.,
Orlando, Florida.

     (gg)  "HOTEL BOOKINGS": Shall mean all contracts, agreements and other
arrangements with respect to future bookings at the Hotel, including, without
limitation, those pertaining to future room reservations, convention or meeting
room reservations, airline agreements, corporate account agreements and other
arrangements for the future use and occupancy of the Hotel, exclusive, however,
of any "trade out agreements" for which Seller has already received the benefit
thereof.

     (hh)  "HOTEL EMPLOYEES": Shall mean any person or persons  employed in
connection with the operation or management of the Hotel.

     (ii)  "HOTEL MANAGEMENT AGREEMENT": Shall collectively mean  those certain
Management agreements between Seller and Hotel Manager providing for the
management of the Hotel dated January 8, 1994 (Houston),  January 21, 1994
(Atlanta), and November 29, 1995 (Orlando).

     (jj)  "HOTEL MANAGER": Shall mean Signature Hospitality Resources, Inc.,
which is the entity managing the operation of the Hotel.

                                       5
<PAGE>
 
     (kk) "HOTEL REAL PROPERTY": Shall  mean the Real Property exclusive of the
1700 West Loop Office Tower.

     (ll)  "HOUSTON REAL PROPERTY": Shall mean  that certain real property
located in the County of Harris, State of Texas described in Exhibit A-1, upon
which the Marriott Hotel West Loop, having a street address of 1750 West Loop
South, Houston, Texas and the 1700 West Loop Office Tower, having a street
address of 1700 West Loop South, Houston, Texas, are located, together with all
of Seller's right, title and interest, if any, in and to all rights-of-way,
streets, alleys, easements, and strips or gores of land appurtenant to the
aforedescribed real property.

     (mm)  "IMPROVEMENTS":  Shall mean all buildings, improvements and fixtures
situated on the  Real Property.

     (nn)   "INTANGIBLE PERSONAL PROPERTY":  Shall mean, to the extent
assignable, all of Seller's right, title and interest, if any, in and to any and
all warranties, guaranties, contracts, agreements, licenses, permits, utility
contracts, approvals (governmental or otherwise), surveys, plans and
specifications, and other rights relating to the ownership, operation and
maintenance of all or any part of the Real Property,  the Improvements, and/or
the Tangible Personal Property, excluding the Leases, the Operational Contracts
and the Liquor Licenses, but specifically including, without limitation, all of
Seller's right, title and interest, if any, in and to the names "West Loop" and
"Twin Towers Hotel" and any and all other tradenames or trademarks used by
Seller in connection with the Hotel (other than those owned by Hotel Manager,
Marriott, or Radisson Licensor) (including any intangible assets related to such
name), all telephone and facsimile numbers in use at the Hotel, all trademarks
(other than trademarks used under or in connection with the License Agreements),
and goodwill currently owned by Seller and related specifically  to the Hotel
and the Hotel operations.
 
     (oo)  "LEASE" OR "LEASES":  Shall mean all of the right, title and interest
of Seller as landlord under any and all written leases for space, occupancy
agreements and other use agreements  located at or on the  Real Property and all
guaranties by third parties of the obligations of tenants, concessionaires, and
other entities thereunder, and any security deposits related thereto.  A list of
the Leases and a rent roll with respect to Leases in existence on the Effective
Date is set forth in Exhibit C attached hereto.

     (pp)  "LIQUOR LICENSES": Shall mean all alcoholic beverage licenses issued
in connection with the sale of alcoholic beverages  at the  Real Property.

     (qq)  "MANAGER": Shall mean collectively the Hotel Manager and the Office
Manager.

                                       6
<PAGE>
 
     (rr)  "MARRIOTT  FRANCHISE AGREEMENT":  Shall mean that certain  Franchise
Agreement dated January 5, 1994 between Marriott  and 1700/1750 West Loop S.
Limited Partnership pertaining to the operation of the Marriott Hotel West Loop,
Houston, Texas, as a Marriott licensed hotel.

     (ss)  "MARRIOTT":  Shall mean Marriott International, Inc.

     (tt)  "NOTICES":  Shall mean those Notices to be sent in the manner as
provided in Section 27 hereof.

     (uu)   "NON-REFUNDABLE DEPOSIT": Shall mean the sum of Five Hundred
Thousand Dollars ($500,000) in U.S. Funds, which shall be deposited by Buyer
into escrow with the Escrow Agent pursuant to and in accordance with Section 3.2
                                                                     -----------
hereof in the event Buyer elects to either extend the Due Diligence Period or
the Closing Date as provided in Section 3.2 hereof.

     (vv)   "NON-REFUNDABLE FEE": Shall have the meaning given thereto in
                                                                         
Section 3.3 hereof.
- -----------        

     (ww)  "OFFICE MANAGEMENT AGREEMENT": Shall mean that management agreement
between 1700/1750 West Loop S. Limited Partnership and Premisys Real Estate
Services, Inc. for the providing for the management of the 1700 West Loop Office
Tower dated September 29, 1993.

     (xx)  "OFFICE MANAGER": shall meant Premisys Real Estate Services, Inc.,
the entity which is managing the 1700 West Loop Office Tower.

     (yy)  "OPERATIONAL CONTRACT NOTICE": Shall have the meaning given thereto
in Section 8.1(f) hereof.
   --------------        

     (zz)  "OPERATIONAL CONTRACTS":  Shall mean all right, title and interest of
Seller, if any, in and to any and all contracts, purchase orders, service
contracts, equipment leases, maintenance contracts, utility contracts, billboard
contracts or billboard leases, travel agency agreements, telephone service
agreements,  and other agreements pertaining to the ownership, operation and
maintenance of the  Real Property, the Improvements and/or the Tangible Personal
Property, excluding the Marriott License Agreement, the Radisson License
Agreement (Atlanta), the Radisson License Agreement (Orlando), the Hotel
Management Agreement and the Office Management Agreement.  A list of the
Operational Contracts in existence as of the Effective Date is set forth in
Exhibit D.

                                       7
<PAGE>
 
     (aaa)  "ORLANDO REAL PROPERTY":  Shall mean that certain real property
located in the County of Orange, State of Florida, described in Exhibit A-3 upon
which the Radisson Twin Towers Hotel and Convention Center, having a street
address of 5780 Major Blvd., Orlando, Florida is located (and also including
that certain real property upon which the laundry facility used in connection
with the Radisson Twin Towers Hotel and Convention Center, having a street
address of 5824 Precision Drive, Orlando, Florida is located) together with all
of Sellers' right, title and interest, if any, in and to all rights-of-way,
streets, alleys, easements, and strips or gores of land appurtenant to the
aforedescribed real property.

     (bbb) "PARKING LEASE":  Shall mean that certain 65 Year Lease between The
First National Bank of Atlanta and James Alva Barnes, as Trustees under the Will
of Joseph Herbert Barnes, as Lessor, and Marriott Motor Hotels, Inc., as Lessee,
and Robert S. Jordan Company, as Agent, dated December 14, 1966.

     (ccc) "PERMITTED EXCEPTIONS":  Shall have the meaning given thereto in
Section 4.3(a) hereof.
- --------------        

     (ddd)  "PROPERTY":  Shall collectively mean (i)  the Houston Real Property;
(ii) the Atlanta Real Property; (iii) the Orlando Real Property, (iv) the
Improvements, (v) Seller's interest in the Parking Lease; (vi) Seller's interest
in the Tunnel Agreement; (vii) the Tangible Personal Property, (viii) the
Intangible Personal Property, (ix) the Leases, (x) the Operational Contracts,
(xi)  the Supply Inventories, and (xii) the Hotel Bookings.

     (eee)  "PURCHASE PRICE":  The Purchase Price for the Property shall be One
Hundred Forty-Nine Million Dollars ($149,000,000) plus Seller's actual cost for
the Consumables. In the event Buyer elects to take the Extended Due Diligence
Period or elects to extend Closing pursuant to Section 3.2 hereof, the Purchase
                                               -----------                     
price shall be increased by the amount of the Non-Refundable Deposit.
 
     (fff)  "PROPERTY EMPLOYEES":  Shall mean any person or persons employed in
connection with the operation or management of the Property.

     (ggg)  "RADISSON LICENSE AGREEMENT (ATLANTA)":  Shall mean that certain
License Agreement dated March 30, 1994, between Radisson Licensor and Zenith
Properties (Atlanta), Inc., pertaining to the operation of the Radisson Hotel,
Atlanta, Georgia as a Radisson licensed hotel.

     (hhh)  "RADISSON LICENSE AGREEMENT (ORLANDO)":  Shall mean that certain
License Agreement dated February 16, 1995, between Radisson Licensor and Zenith
Properties (Orlando), Limited Partnership, pertaining to the operation of the
Radisson Twin Towers 

                                       8
<PAGE>
 
Hotel and Convention Center, Orlando, Florida as a Radisson licensed hotel.

     (iii)  "RADISSON LICENSOR":  Shall mean Radisson Hotels International, Inc.

     (jjj)  "REAL PROPERTY":  Shall mean collectively, the Atlanta Real
Property,  the Houston Real Property, and the Orlando Real Property.

     (kkk)  "RENT ROLL:  Shall have the meaning given thereto in Section 10.3(b)
                                                                 ---------------
hereof.

     (lll) "SUPPLY INVENTORIES":  Shall mean such provisions, other than
consumables, as all merchandise, supplies, inventory and other items used for
the operation and maintenance of guest rooms, guest services, restaurants,
lounges, swimming pools, health clubs, and other common areas and recreational
areas located within or relating to the Improvements, including, without
limitation as applicable, all stationery, advertising and promotional materials,
guest cleaning, paper and other supplies, upholstery material, carpets, rugs,
engineers' supplies, paint and painters' supplies, and pool and other
recreational area cleaning and maintenance supplies, china, glassware,
silverware, linens, uniforms, works of art, materials and supplies; fuel;  guest
room, office and other supplies and similar items, as they exist from time to
time, which are (i) actually owned by Seller, (ii) located on the Hotel Real
Property, and (iii) used or intended for use but not for sale in connection with
the ownership, operation and maintenance of the Hotel Real Property and
Improvements.

     (mmm)  "SURVEY": Shall have the meaning given to such term in Section
                                                                   -------
4.3(d) hereof.
- ------        

     (nnn)  "TANGIBLE PERSONAL PROPERTY":  All furniture, furnishings, fittings,
vehicles, computer hardware and software, equipment, tools, machinery,
apparatus, cabinets, appliances, keys and operating and maintenance equipment,
signs, mechanical fixtures and equipment and systems; all copy machines,
computers, facsimile machines and other office equipment; all pool and health
club and fitness equipment and furnishings; all vans, automobiles and other
motor vehicles; all televisions, telephones and other furnishings; and all
stoves, ovens, freezers, refrigerators, dishwashers, disposals, kitchen
equipment and utensils and other restaurant and bar equipment, apparatus and
utensils, and other items of personal property, to the extent any of the
foregoing are (i) owned by Seller, (ii) located on the Real Property, and (iii)
used in connection with the ownership, operation and maintenance of the Real
Property. A list of the Tangible Personal Property located on the Real Property
on the Effective Date is set forth on Exhibit E, which list shall be subject to
minor adjustments for items which are lost, misplaced, used up, worn out or
become obsolete between the Effective Date and the Closing Date, but with
respect to such items, Buyer shall be entitled to receive at Closing any
applicable credit as provided by Section 10.7 below.
                                 ------------ 

                                       9
<PAGE>
 
     (ooo)  "TENANT NOTICE":  Shall have the meaning given thereto in Section
                                                                      -------
8.1(e) hereof.
- ------        

     (ppp)  "TITLE COMMITMENT": Shall  have the meaning given thereto in Section
                                                                         -------
4.3(b) hereof.
- ------        
 
     (qqq)  "TITLE COMPANY":  Shall mean Commonwealth Land Title Insurance
Company.

     (rrr) "TITLE POLICY":  Shall have the meaning given thereto in Section
                                                                    -------
4.3(b) hereof.
- ------        

     (sss)  "TUNNEL AGREEMENT":  Shall mean that certain Agreement between the
City of Atlanta, Marriott Motor Hotels, Inc., The First National Bank of Atlanta
and James Alva Barnes, as Trustees of the Estate of Joseph Herbert Barnes, and
Whitestone Properties, Inc., dated June 21, 1968.

     (ttt)  "UNIFORM SYSTEM OF ACCOUNTS":  Shall mean the Uniform System of
Accounts for Hotels, as approved and adopted by the American Hotel and Motel
Association (8th revised edition).

     (uuu)  "UCC SEARCH":  Shall have the meaning given to such term in Section
                                                                        -------
4.3(c) hereof.
- ------        

     (vvv)  "WARN ACT":  Shall mean the Federal Worker Adjustment and Retraining
Notification and Adjustment Act Statute.

     (www)  " 1700 WEST LOOP OFFICE TOWER":  Shall mean the office building
having a street address of 1700 West Loop South, Houston, Texas.

SECTION 2.  PURCHASE AND SALE.

     2.1  Conveyance of Property.  Upon and subject to the terms and conditions
          ----------------------                                               
set forth in this Agreement, Seller agrees to sell the Property to Buyer and
Buyer agrees to buy the Property from Seller.  In consideration of Seller's sale
of the Property to Buyer, and the performance of Seller's obligations hereunder,
Buyer shall (i) pay to Seller the Purchase Price, subject to adjustments and
prorations at Closing, as provided by this Agreement, and (ii) perform all of
Buyer's other obligations hereunder, which shall include certain indemnities set
forth herein.  In consideration of Buyer's purchase of the Property from Seller
and the performance of Buyer's obligations hereunder, Seller shall (i) convey
the Property to Buyer for the Purchase Price, subject to adjustments and
prorations at Closing, as provided 

                                       10
<PAGE>
 
by this Agreement, and (ii) perform all of Seller's other obligations hereunder,
which shall include certain indemnities set forth herein. Buyer acknowledges
that an important component of the transaction contemplated by this Agreement is
the sale of the Property in its entirety and therefore, notwithstanding any
allocation of the Purchase Price which may be provided for in this Agreement,
Buyer shall not be entitled to purchase individually either the Atlanta Real
Property, the Houston Real Property, or the Orlando Real Property (or any
combination thereof) without also purchasing the other properties unless at
Closing Seller is unable to deliver one or two of the properties in accordance
with the terms of this Agreement, due to no fault of Buyer in which case, Buyer
may elect to either (i) terminate this Agreement with a return of the Deposit
and, if applicable, the Non-Refundable Deposit, or (ii) proceed to Closing on
the remaining properties for the portion of the Purchase Price allocated thereto
on Exhibit B, subject to adjustments and prorations as set forth herein.

     2.2  Excluded Items.  Buyer expressly acknowledges that the following items
          --------------                                                        
are excluded from the Property to be conveyed and transferred pursuant to this
Agreement:  (i) any trade fixtures or articles of personal property belonging to
guests of the Hotel; (ii) any trade fixtures, furniture, furnishings or articles
of personal property owned by any tenant under any Lease; (iii) any trade
fixtures, furniture, furnishings or articles of personal property owned by third
party suppliers of services or equipment pursuant to the Operational Contracts;
(iv) any trade fixtures, furniture, furnishings and articles of personal
property owned by the Manager (Seller shall provide a separate list of these
items during the Due Diligence Period);  and (v) any right, title or interest of
the Licensor in or to any trademarks and/or trade names used at the Property and
any other part of the Marriott or Radisson franchise systems.

SECTION 3.  PURCHASE PRICE.

     The Purchase Price for the Property shall be paid as follows:

     3.1  Deposit.  On or before the  second business day following the
          -------                                                      
execution of this Agreement by both Buyer and Seller, Buyer shall deposit the
Deposit of Seven Million Five Hundred Thousand Dollars ($7,500,000) with Escrow
Agent by confirmed wire transfer of U.S. funds or by an irrevocable,
unconditional letter of credit drawn upon Bank One Texas, N.A., in favor of and
reasonably satisfactory to Seller, Escrow Agent shall invest the Deposit
promptly upon the replacement of the letter of credit with cash as provided
below  in an interest bearing account and all interest accruing thereon shall
become a part of the  Deposit. All interest accruing on the  Deposit shall
accrue for the account of Buyer and shall be applied against the Purchase Price
at Closing, unless the  Deposit is paid to Seller or returned to Buyer in
accordance with the provisions of the Agreement, in which event all interest
earned thereon shall also be paid to Seller or Buyer, as the case may be.   If
at or prior to the 

                                       11
<PAGE>
 
expiration of the Due Diligence Period or the Extended Due Diligence Period, as
the case may be, Buyer does not provide Seller with written notice of its
election to proceed with Closing as provided herein, then Escrow Agent shall
immediately cause the Deposit to be returned to Buyer and this Agreement shall
be considered terminated. If at or prior to the end of the Due Diligence Period
or the extended Due Diligence Period, as the case may be, Buyer delivers to
Seller written notice of its intention to proceed to Closing, Buyer shall also
immediately replace said letter of credit with wire transferred US funds, in the
amount of $7,500,000, failing which, this Agreement shall terminate and Escrow
Agent shall immediately cause the Deposit to be returned to Buyer. Except as
otherwise provided to the contrary in this Agreement, the Deposit shall become
nonrefundable upon Buyer's election to proceed with Closing at or prior to the
expiration of the Due Diligence Period or Extended Due Diligence Period as the
case may be, (as evidenced by Buyer's written notice to Seller and, if
applicable, the conversion of the above described letter of credit to cash). 

     3.2  Non-Refundable Deposit.  At or prior to the end of the Due Diligence
          ----------------------                                              
Period, Buyer shall have the right to elect to take the Extended Due Diligence
Period, provided Buyer has delivered written notice to Seller of its intention
to do so and  Buyer has also deposited into escrow with the Escrow Agent the
Non-Refundable Deposit by confirmed wire transfer of US funds.  If Buyer elects
to take the Extended Due Diligence Period, the Purchase Price shall increase by
the amount of the Non-Refundable Deposit. At the end of the Extended Due
Diligence Period, if Buyer elects to proceed to Closing, the amount of the Non-
Refundable Deposit shall be added to  the Purchase Price, but shall  be non-
refundable to Buyer for any reason whatsoever other than as provided in Section
                                                                        -------
2.1 and Section 24 hereof.  If at the end of the Extended Due Diligence Period
- ---     ----------                                                            
Buyer does not elect to proceed to Closing, the Escrow Agent shall immediately
release the Non-Refundable Deposit to Seller and this Agreement shall be deemed
terminated.  Only in the event Buyer does not elect to take the Extended Due
Diligence Period, Buyer shall have the right to extend the Closing Date for a
period of fifteen (15) days provided Buyer has, at least two (2) business days
prior to the Closing Date, (i) delivered written notice to Seller with its
intention to take such an extension, and (ii) deposited the Non-Refundable
Deposit into escrow with the Escrow Agent by confirmed wire transfer of U.S.
Funds.  The amount of the Non-Refundable Deposit shall be added to the Purchase
Price, but shall be non-refundable to Buyer for any reason whatsoever other than
as provided in Section 2.1 and Section 24 hereof. In the event Buyer then does
               -----------     -----------                                    
not proceed to closing on the extended Closing Date, in addition to any other
remedies provided in this Agreement, Escrow Agent shall immediately release the
Non-Refundable Deposit and the Deposit to Seller.

     3.3  Non-Refundable Fee.  In addition to, but separate from, the Deposit
          ------------------                                                 
and in consideration of the rights granted under this Agreement to Buyer to
terminate this Agreement at or prior to the expiration of the Due Diligence
Period, and to receive the return 

                                       12
<PAGE>
 
of the Deposit at the end of the Due Diligence Period, Buyer shall deliver the
sum of One Thousand Dollars ($1,000) in cash to Seller contemporaneously with
the full execution of this Agreement as a Non-Refundable Fee. Payment of the 
Non-Refundable Fee, which is fully earned by Seller upon its receipt and shall
be non-refundable for any reason whatsoever, is a condition precedent to the
formation of this Agreement. Buyer acknowledges that consideration for the
rights granted under this Agreement to terminate this Agreement at or prior to
the termination of the Extended Due Diligence Period is the Non-Refundable
Deposit described in Section 3.2 above.
                     -----------
 
     3.4  Consumables.  At Closing, Buyer shall pay to Seller, in addition to
          -----------                                                        
the Purchase Price, an amount equal to Seller's actual invoice cost for the
Consumables.

     3.5  Cash Balance.  On the Closing Date, Buyer shall pay to the Escrow
          ------------                                                     
Agent the balance of the Purchase Price, subject to adjustments and prorations
as provided herein, by confirmed wire transfer of  U.S. funds.

     3.6  Allocation of Purchase Price.    For documentary stamp, transfer tax,
          ----------------------------                                         
sales tax and other applicable transfer requirements, and title insurance
purposes, Seller and Buyer agree that the Purchase Price shall be allocated
among the Properties and with respect to each Property, among the Real Property,
Improvements and personalty (Tangible Personal Property and Supply Inventories),
as set forth on Exhibit B.

 SECTION 4.  DUE DILIGENCE.

     4.1  Matters To Be Reviewed.  Buyer shall have the right to undertake
          ----------------------                                          
investigations and studies of all aspects of the Property , including, without
limitation,  the right to physically inspect the Hotel, to conduct soil tests,
environmental tests and inspections, and other tests and inspections (so long as
such tests and inspections do not unreasonably interfere with the use and
occupancy of the Hotel by Seller, by guests or patrons of the Hotel, or by
tenants), and to examine any books, records and other financial information
pertaining to the Hotel, to evaluate the Hotel and the matters described herein.

     4.2  Delivery of Copies.
          ------------------ 

          (a) Except as otherwise provided herein, Seller shall use its best
efforts to deliver to Buyer, within  five (5) business days following the
Effective Date,   to the extent such exists, complete copies (or where
specifically indicated, original counterparts) of the Documents listed below,
together with all amendments, modifications, renewals or extensions thereof,
which are in the possession of either Seller or Manager:

                                       13
<PAGE>
 
          (i) All agreements, contracts, approvals or other documentation with
              respect to the Intangible Personal Property relating to the
              Property or any part thereof which are still in effect;

         (ii) Operating statements prepared by Manager, budgets, State income
              tax returns for the Property, for the current year to date and
              previous years of Seller's ownership (the "Financial Statements"),
              including the itemization of (1) annual insurance premiums for
              each such year for fire, extended coverage, workers' compensation,
              vandalism and malicious mischief, general liability, business
              interruption, rents and other forms of insurance shown thereon;
              (2) expenses incurred for water, electricity, natural gas, sewer
              and other utility charges; (3) total rents and revenues collected
              from tenants and from hotel guests and other patrons of the Hotel;
              (4) management fees; (5) maintenance, repairs and other expenses
              relating to the management and operation of the Property; (6)
              historical occupancy statistics for the Hotel; and (7) all capital
              expenditures made during the aforementioned periods;

        (iii) All Liquor Licenses;

         (iv) All of the most recent real estate and personal property tax
              statements and notices of publicly assessed value for the Real
              Property and Improvements;

          (v) To the extent in Seller's possession or control or readily
              obtainable without material expense, all engineering and
              architectural plans, drawings and specifications relating to the
              Property, as well as copies of any environmental reports,
              boundary surveys, engineering reports and subsurface studies
              affecting the Property. If the Property is purchased by Buyer,
              all such documents and information shall thereupon be and become
              the property of Buyer without payment of any additional
              consideration therefor; provided, however, in the event that the
              Closing does not actually occur, Buyer shall return such
              information to Seller;

         (vi) All Operational Contracts and a schedule of such Operational
              Contracts (the "Schedule of Operational Contracts");

        (vii) All Leases (other than guest or room booking and reservation
              contracts), a schedule of such Leases (the "Schedule of Leases")
              and all 

                                       14
<PAGE>
 
              agreements for real estate commissions, brokerage fees,
              finder's fees or other compensation payable by Seller in
              connection therewith which would be binding on Buyer after Closing
              and during the Due Diligence Period Seller shall provide to Buyer
              information regarding leasing Commissions payable subsequent to
              Closing and information regarding all "expenses" (as defined in
              Section 10.4(b)) paid or payable in connection with any Leases,
              ---------------                                                
              extensions or renewals entered after January 1, 1997;


       (viii) A rent roll, including for each Lease (1) the name of the tenant;
              (2) the suite; (3) the base rental rate; (4) the amount of prepaid
              rent; (5) the amount of each security deposit; (6) the applicable
              percentage rental rate, if any, and the means of calculation
              thereof; (7) the date of the Lease; and (8) the expiration date of
              the Lease;

         (ix) To the extent in Seller's possession or control, all notices
              received from governmental authorities in connection with the
              Property;

          (x) A list of all current Property Employees and their salaries or
              wages and all employment benefits accompanied by copies of all
              Employee Contracts and Benefit Plans;

         (xi) A copy of the Parking Lease and the Tunnel Agreement;

        (xii) The Marriott Franchise Agreement, the Radisson License Agreement
              (Atlanta) and the Radisson License Agreement (Orlando) and a
              current deficiency report and the two most recent inspection
              reports of each franchisor of the Hotel, together with any Product
              Improvement Plan ("PIP") requirements, if any, previously
              submitted to Seller by such franchisor or to which Seller has
              agreed;

       (xiii) An inventory of the Tangible Personal Property ( a listing of
              which is to be delivered to Buyer within 21 days following the
              Effective Date);

        (xiv) A schedule of all deposits given in connection with Hotel Bookings
              (the "Schedule of Hotel Booking Deposits");

         (xv) A description of the existing insurance covering the Property;

        (xvi) An unaudited operating statement of the Property as of March 31,
              1997 

                                       15
<PAGE>
 
              setting forth all operating assets and liabilities of the
              Property together with a statement setting forth the following:
              (a) Seller's cost of the Property, and (b) the cost of
              improvements made by Seller since the date of Seller's
              acquisition;

       (xvii) A schedule of any litigation, arbitration or administrative
              proceedings pending or threatened with respect to the Property;

      (xviii) A copy of Seller's existing title insurance policy and a
              copy of the existing survey for the Property;

        (xix) Any leases of adjacent land or facilities used in connection
              with the operation of the Property; and

         (xx) Seller's 1997 capital and operating budgets and Seller will make
              available at the Property all materials relating to its marketing
              program; and

In the event any of the Documents set forth above are not delivered to Buyer
within fifteen (15) days following the Effective Date (twenty-one (21) days with
respect to the list of Tangible Personal Property) and the same are of a
material nature, then the Due Diligence Period shall be extended by the total
number of days of the delay in the delivery of any such material Documents.
Except as otherwise provided herein, Buyer shall have the right to make a
written request to Seller to furnish any  additional items not previously
furnished to Buyer, or made available to Buyer, and not otherwise obtained by
Buyer, provided that such request states with particularity the items requested
to be furnished and such request is received by Seller no later than five (5)
business days prior to the expiration of the Due Diligence Period or extended
Due Diligence Period, as the case may be.  Upon receiving such request, Seller
shall promptly furnish copies of all items properly requested by Buyer, except
the Excluded Items (as defined in Section 4.2(b) below), to Buyer or make them
                                  --------------                              
reasonably available to Buyer for inspection at the  Property, but only to the
extent that such items are  in Seller's  possession  or the possession of the
Manager.

          (b) Under no circumstances shall Seller be obligated to furnish the
following  Excluded Items to Buyer:

               (i)   any privileged documents;

              (ii)   the contents of any loan files maintained by Seller;

                                       16
<PAGE>
 
             (iii)   any appraisals prepared internally by Seller, and the
valuation sections and information of any appraisals prepared by outside
appraisers, brokers or consultants; and

              (iv)   internal memoranda, analyses and business plans;
correspondence and other materials to or from Seller's Broker and potential
third party buyers; and correspondence and other material between Seller and
Seller's Broker.

          (c) Seller shall provide to Buyer, immediately upon receipt, copies of
all written notices, other than minor or immaterial operational notices,
received by Seller, including  those notices received by the Manager, between
the Effective Date and the Closing Date from third parties concerning the
Property or its operation.  Seller shall allow Buyer and Buyer's agents to
consult with the Manager at any time prior to the Closing concerning the
operation of the Property (except with respect to the Excluded Items),
including, without limitation, any notices received by the Manager or any other
matter concerning the Property.

          (d) Buyer expressly agrees that Seller is furnishing to Buyer copies
of the Documents and all other such documents and information described above or
furnished pursuant to request by Buyer for informational purposes only and
except as is otherwise expressly set forth in this Agreement, without
representation or warranty as to the accuracy or completeness of the contents of
same; provided, however, that Seller shall not intentionally purge, remove or
alter any items from such Documents and information and file(s) except for the
Excluded Items.  Buyer covenants and agrees that it  will conduct such due
diligence as it deems necessary or appropriate on all matters referred to in
such Documents and information, or otherwise relating to the Property.  In the
event this Agreement is terminated, or in the event the sale of the Property
fails to close for any reason, and notwithstanding anything to the contrary
which may be contained herein, Buyer shall return to Seller, without charge, all
Documents, information and other materials provided to Buyer or its agents
(including Buyer's Broker) by Seller.  The provisions of this Section 4.2(d)
                                                              --------------
shall survive the Closing or any earlier termination of this Agreement.

     4.3  Title and Title Commitment.
          -------------------------- 

          (a) At Closing, fee simple title to the Real Property and Improvements
shall be conveyed to Buyer by Seller by the Deed, subject only to (i) taxes and
assessments for the year of Closing and subsequent years not yet due and
payable, (ii) matters of title and survey respecting the Houston Real Property,
the Atlanta Real Property, the Orlando Real Property, and Improvements, approved
or deemed approved by Buyer in accordance with this Section 4.3, (iii) matters
                                                    ----------- 
affecting the condition of title to the Real Property and/or Improvements 

                                       17
<PAGE>
 
created by or with the written consent of Buyer, (iv) subject to matters of
survey approved or deemed approved by Buyer in accordance with this Section 4.3,
                                                                    ------------
any matters which would be shown by a current accurate survey or inspection of
the Real Property and Improvements, (collectively, the "Permitted Exceptions").
With respect to matters of Title, Seller shall be obligated to remove (i) all
mortgages, deeds of trust, deeds to secure debt, and like encumbrances, (ii) all
other monetary liens and judgments, and (iii) any other encumbrances created by
Seller after the Effective Date.

          (b) Within ten (10) days following the Effective Date, the Title
Company shall furnish to Buyer  the Title Commitment issued, together with hard
copies of all exceptions thereto.  The Title Commitment shall commit the Title
Company to issue to Buyer, upon compliance with the requirements set forth in
the Title Commitment, an Owner's Policy (the "Title Policy") insuring Buyer as
the owner of the  Real Property and Improvements, in an amount equal to the
portion of the Purchase Price allocated to the  Real Property and the
Improvements.

          (c) UCC Search.  Within ten (10) days following the Effective Date,
              ----------                                                     
Buyer shall obtain current written reports (the "UCC Searches") from the Office
of the Secretary of State of the states where the Hotel is located, where Seller
maintains its principal place of business and where Seller was formed, and the
UCC filing offices of the counties where the Hotel is located and where Seller
maintains its principal place of business, reflecting the results of current
searches of the Uniform Commercial Code Records maintained by such offices, said
UCC Searches to be made under the name of Seller, its general partner, if any,
and any trade names used by Seller at the Hotel.  Buyer may order additional UCC
searches immediately prior to closing hereunder.

          (d) Survey.  Within ten (10) days following the Effective Date, Seller
              ------                                                            
and Buyer shall cause a current "as built" survey or updated survey (the
"Survey") of the Real Property and Improvements to be prepared, in accordance
with the Minimum Standard Detail Requirements for ALTA/ACSM Real Property Title
Surveys and the items set forth in Table A thereto (other than contours and
elevations of the Real Property but including elevations of the Improvements)
and certified by a professional land surveyor licensed in the state in which
each Hotel is located.  The Survey shall, without limiting the foregoing, (i)
set forth a metes and bounds description of the Real Property, and (ii) contain
a certification by the surveyor in form reasonably acceptable and addressed to
Seller, Buyer and the Title Company.

          (e) Buyer shall have  a period of  ten (10) days  from the receipt of
the Title Commitment, UCC Searches  and the Survey  within which to examine
such documents and to notify Seller in writing of any  matters to which Buyer
objects.  If Buyer fails to notify 

                                       18
<PAGE>
 
Seller of any matters to which Buyer objects within such period, all title and
survey matters shall be deemed approved. If Buyer timely notifies Seller of
specific disapproved exceptions or other objections to Title or the Survey
within such period, Seller shall have fourteen (14) days after receipt of
Buyer's written notification of objections in which to advise Buyer in writing
that:

                (i)  Seller shall cause the objections to be removed or remedied
(which may include, by way of illustration, but not limitation, obtaining, an
endorsement to the Title Commitment, deleting or affirmatively insuring over
such title and/or survey exception (provided any such endorsement is acceptable
to Buyer's lender); or

               (ii)  Seller shall not cause the objections to be removed or
remedied.
 
          (f)  If Seller does not notify Buyer in writing of its election within
the fourteen (14) day period, Seller shall be deemed to have elected not to
cause the objections to be removed or remedied. If Seller elects not to cause
objections to be removed or remedied, by either delivery of the Seller's notice
called for in Section 4.3 (e) above or by failing to deliver said notices then
              ---------------                                                 
Buyer shall have five (5) business days after the due date for the receipt of
Seller's notice to elect in writing, as its remedy, to:

                (i)  subject to Buyer's other rights under this Agreement with
respect to its due diligence review of the Property, to proceed with the
purchase and acquire the Property subject to the objections; or

               (ii)  terminate this Agreement by written notice to Seller and
Escrow Agent, in which case the Deposit and any interest accrued thereon shall
be returned to Buyer, whereupon the parties shall be released from all further
obligations under this Agreement, except those which survive termination of this
Agreement.

          (g)  If Buyer does not give Seller written notice of its election
within such five (5) business day period, Buyer shall be deemed to have elected
to terminate this Agreement as provided in (ii) immediately above. Buyer shall
also promptly notify Seller after the expiration of the Due Diligence Period or
the Extended Due Diligence Period, as the case may be, of any objections to
matters arising after the expiration of the Due Diligence Period or the Extended
Due Diligence Period, as the case may be, revealed in any updates or
continuations of the Title Commitment, the UCC Searches or the Survey, in which
case the provisions and the time periods set forth in Subsections (e) and (f) of
this Section 4 shall apply and if necessary, the Closing Date shall be extended
to comply with said time periods.

          (h)  At Closing, Seller shall cause Escrow Agent to "mark up" and
deliver 

                                       19
<PAGE>
 
to Buyer the Title Commitment, or to issue an endorsement to the Title
Commitment, in each case deleting all Schedule B - section 1 requirements, the
standard printed exceptions for mechanic's liens and for parties in possession
(other than tenants and hotel guests), and the "gap" exception. By Closing,
Seller shall, at Seller's sole expense, cancel the Hotel Management Agreement
and the Office Management Agreement and any other management agreements
affecting the Property. Seller shall also cancel, effective as of the Closing
Date, any of such Operational Contracts and Leases objected to by Buyer which
are, terminable by their terms, at no cost or penalty to Seller (Seller shall
                --------------                                               
have no obligation to breach any such Operational Contract or Lease, however).

     4.4  Buyer's Right to Terminate the Agreement. If, at or prior to the
          ----------------------------------------                        
expiration of the Due Diligence Period, Buyer: (a) delivers written notice to
Seller of Buyer's election to proceed to Closing and, if applicable, causes the
letter of credit described in Section 3.1 above to be converted to cash by wire
                              -----------                                      
transfer of US funds; or (b) delivers written notice to Seller of Buyer's
election to take the Extended Due Diligence Period and has deposited into escrow
with the Escrow Agent the Non-Refundable Deposit, then this Agreement shall
remain in full force and effect.  However, if during the Due Diligence Period or
the Extended Due Diligence Period Buyer determines, in Buyer's sole and absolute
discretion that Buyer does not elect to proceed to Closing and Buyer delivers
either written notice of the same to Seller at or prior to the expiration of the
Due Diligence Period, or the Extended Due Diligence Period or fails to timely
deliver to Seller  items (a) or (b) described in the preceding sentence of this
Section at the end of the Due Diligence Period, or at the end of the Extended
Due Diligence Period, fails to deliver to Seller the identical items set forth
in (a) above,  then this Agreement shall terminate, the Deposit  shall be
returned to Buyer, and in the event of the Extended Due Diligence Period, the
Non-Refundable Deposit shall immediately be released to Seller and thereafter
Seller and Buyer shall have no further obligations or liabilities one to the
other hereunder except for any indemnity or liability of Buyer pursuant to
Section 5 hereof and other obligations which this Agreement shall state
- ---------                                                              
expressly survive termination hereof.

SECTION 5.  ENTRY ON PROPERTY.

     Buyer and Buyer's representatives, agents, designees and consultants shall
have the right, at mutually convenient times and upon three (3) business days
prior written notice to Seller (which notice must describe the scope of the
planned testing and investigations), to enter upon the Property, and to conduct
soil tests, engineering studies, an Environmental Audit and other studies and
investigations regarding the environmental, structural, and mechanical condition
of the Property, including, without limitation, structural, mechanical and
electrical studies and investigations, and upon 24 hours prior notice for all
other feasibility and other studies regarding the Property as Buyer considers
necessary or desirable; 

                                       20
<PAGE>
 
provided, however, that:

     (a)  all tests and investigations shall be at Buyer's sole cost and
expense;

     (b)  the persons or entities performing such tests and investigations shall
be properly licensed and qualified and shall have obtained all appropriate
permits therefor;

     (c)  Seller shall have the right of approval (which shall not be
unreasonably withheld or delayed) of any proposed physical testing or drilling;

     (d)  Buyer shall advise Seller in advance of the dates of all tests and
investigations and shall schedule all tests and investigations during normal
business hours whenever feasible unless otherwise requested by Seller;

     (e)  Seller shall have the right to have a representative of Seller
accompany Buyer and Buyer's representatives, agents or designees at all times
while they are on the Property;

     (f)  any entry by Buyer, its representatives , agents or designees shall
not interfere with Seller's use of the Property or the use of the Property by
any tenant or Hotel guest or occupant; such right of entry is expressly subject
to and conditioned upon the rights of tenants under the Leases and Hotel guests;

     (g)  Buyer shall indemnify, defend and hold Seller and Seller's affiliates,
subsidiaries, officers, directors and agents harmless for, from and against any
and all claims, damages, costs, liabilities and losses (including reasonable
attorneys' fees and costs sustained by Seller, and including any violations of
Environmental Laws and/or damages related to Hazardous Substances, and including
construction liens filed against the  Real Property and/or the Improvements
located thereon) arising out of or caused by any entry or other inspection by
Buyer or its agents, designees or consultants unless arising out of or caused by
the negligence of Seller, its agents, or Property Employees, provided Buyer
shall have no obligations hereunder with respect to any existing conditions
unless the actions of Buyer, its agents, designees, or consultants have
exacerbated the same and then only to the extent of such exacerbation;

     (h)  If the transaction contemplated  by this Agreement does not close for
any reason, Buyer, at its sole cost and expense, shall restore the Property to
the condition it was in prior to Buyer's inspection.  Until such restoration is
complete, Buyer shall take all steps necessary to ensure that any conditions on
the Property created by Buyer's testing will not interfere with the normal
operation of the Property or create any dangerous, unhealthy, unsightly or noisy
conditions on the Property; and

                                       21
<PAGE>
 
     (i)  Prior to any entry involving physical testing, drilling or other
physical disturbance, Buyer shall obtain, maintain and provide Seller, or shall
cause any consultant, contractor or other person entering the Property to
obtain, maintain and provide Seller, with proof of comprehensive general
liability insurance in the amount of at least $1,000,000 combined, single limit
coverage, naming Seller as an additional insured and with such coverages and
issued by such licensed insurance company as are reasonably satisfactory to
Seller.  The provisions of this Section 5 shall survive the Closing or any
                                ---------                                 
earlier termination of this Agreement.

                                       22
<PAGE>
 
SECTION 6.  PROPERTY "AS-IS".

     6.1  No Side Agreements or Representations; As-Is Purchase.  Buyer
          -----------------------------------------------------        
represents to, and covenants with Seller that Buyer will conduct such inspection
and examination of the Property during the Due Diligence Period or the Extended
Due Diligence Period, as the case may be, as Buyer deems prudent and necessary
to determine whether to acquire the Property pursuant to this Agreement.  Buyer
acknowledges that at the conclusion of the Due Diligence Period, or the Extended
Due Diligence Period, as the case may be, Buyer will elect whether to terminate
this Agreement pursuant to Section  4.4 or whether to acquire the Property
                           ------------                                   
pursuant to the terms hereof.  Buyer further acknowledges and agrees that in the
event Buyer elects not to terminate this Agreement and to acquire the Property
pursuant to the terms hereof, Buyer will accept all of the Property, in its then
condition "AS-IS AND WITH ALL FAULTS", subject to the provisions of Section 17
                                                                    ----------
with respect to condemnation or casualty.  Seller and Buyer agree that, except
as otherwise provided in this  Agreement, the  Property shall be sold "as-is,
where is, with all faults"  with no right of set-off or reduction of the
Purchase Price and except as expressly set forth in    this Agreement or in any
document delivered at Closing,  such sale shall be without representation or
warranty of any kind, express or implied, including, without limitation,
warranty of income potential, operating expenses, uses, merchantability or
fitness for a particular purpose and Seller (on its own behalf and on behalf of
its employees and agents), does hereby disclaim and renounce any representation
or warranty except as set forth in this Agreement or in any document delivered
at Closing. For the purposes of this Agreement, the term "as-is" shall mean
(without limitation thereon) as-is with respect to (a) the physical and
environmental condition of the Property, including defects seen and unseen and
conditions natural and artificial), (b) the title to the  Real Property, (c) the
matters set forth in the Documents  and any other documents, reports, memoranda
or financial projections furnished to Buyer and/or  (d) and all laws,
ordinances, rules and regulations to which the Property is subject under any
applicable governmental or regulatory jurisdiction; excluding, however, any
matters which Seller has agreed in writing to remedy or remove pursuant to the
terms of this Agreement or in accordance with the provisions of Section 4
                                                                ---------
hereof.  Notwithstanding the foregoing, nothing in this Section 6.1 or in
                                                        -----------      
Section 6.2 hereof shall limit, release or diminish Seller's liability to Buyer
- -----------                                                                    
for any breach of Seller's representations,  warranties and covenants set forth
in this Agreement hereof which is properly asserted by Buyer in writing within
the one (1) year period following Closing.
 
     6.2  Release.  Except as expressly provided in this Agreement, Buyer and
          -------                                                            
anyone claiming by, through or under Buyer hereby fully and irrevocably releases
Seller and its respective employees, officers, directors, representatives,
agents, servants, attorneys, real estate brokers, affiliates, parent companies,
subsidiaries, successors and assigns, and all persons, firms, corporations and
organizations acting on their behalf, from any and all claims 

                                       23
<PAGE>
 
that it may now have or hereafter acquire against Seller or any of its
respective employees, officers, directors, representatives, agents, servants,
attorneys, affiliates, parent companies, subsidiaries, successors and assigns,
and all persons, firms, corporations and organizations acting on their behalf
for any costs, loss, liability, damage, expenses, demand, action or cause of
action arising from or related to any construction defects, errors, omissions or
other conditions, latent or otherwise, geotechnical, seismic, or environmental,
affecting the Property or any portion thereof.
 
     6.3.  Estoppel Certificates.  Seller shall use reasonable good faith
           ---------------------                                         
efforts to  obtain tenant estoppel certificates from the tenants under the
Leases, substantially in the form attached hereto as Exhibit F. In the event
Seller cannot for any reason obtain a tenant estoppel certificate from a tenant,
Seller shall deliver to Buyer, in lieu thereof, a Seller's Certificate, in the
form attached hereto as Exhibit G.  Provided, however, Seller shall  use
reasonable, good faith efforts to obtain estoppel certificates for the Parking
Lease,  the Tunnel Agreement, and from CBM Engineers, Network Information
Systems and Gulf Interstate prior to the end of the Due Diligence Period.

     6.4  Survival.  The provisions of this Section 6 shall survive the Closing
          --------                          ---------                          
or any earlier termination of this Agreement.

SECTION 7.  CONDITIONS TO CLOSING.

     7.1  Conditions Precedent to Buyer's Obligations.  The Closing and Buyer's
          -------------------------------------------                          
obligations with respect to this transaction are subject to the following
conditions  precedent: (i) Seller's express  representations,  warranties and
covenants set forth in this Agreement  shall be true and correct and complied
with in all material respects as of the Closing Date;  (ii)  Seller shall have
delivered the items described in Section 8.1; (iii) on the Closing Date title to
                                 -----------                                    
the Property shall be subject only to the Permitted Exceptions; and (iv) Seller
shall have terminated the Hotel Management Agreement and the Office Management
Agreement .  The conditions set forth in this Section 7.1 are solely for the
                                              -----------                   
benefit of Buyer and may be waived only by Buyer, with such waiver to be in
writing to Seller.

     7.2  Conditions Precedent to Seller's Obligations.  The Closing and
          --------------------------------------------                  
Seller's obligations with respect to this transaction are subject to the
following conditions precedent: (i) Buyer's delivery to Escrow Agent on or
before the Closing Date, of the Purchase Price, as adjusted by the net amount of
the payments, prorations and adjustments required under this Agreement, (ii)
Buyer's delivery to Seller of the items to be delivered pursuant to Section 8.2
                                                                    -----------
of this Agreement;   and (iii) each of Buyer's representations,  warranties and
covenants set forth in  this Agreement shall  be true and correct and complied
with in all material respects on and as of the Closing Date.  The conditions set
forth in this  Section7.2 are solely for the  
               ----------

                                       24
<PAGE>
 
benefit of Seller and may be waived only by Seller, with such waiver to be in
writing to Buyer.

SECTION 8.  DELIVERIES AT CLOSING.

     8.1  By Seller.  At least one business day prior to the  Closing Date,
          ---------                                                        
Seller shall deliver or cause to be delivered to Escrow Agent the following
items for each Property:

          (a) A Special Warranty Deed (or local law equivalent) ("DEED"),
substantially in the form attached to this Agreement as Exhibit H, duly executed
and acknowledged by Seller and in recordable form approved by the Title Company,
conveying the  Real Property and Improvements to Buyer, subject to the Permitted
Exceptions (if requested by Buyer, Seller shall provide a separate deed for the
Orlando laundry facility);

          (b) A Transferor's Certificate of Non-Foreign Status ("FIRPTA
CERTIFICATE") in the form attached to this Agreement as Exhibit I duly executed
by Seller;

          (c) A bill of sale ("BILL OF SALE") substantially in the form attached
to this Agreement as Exhibit J, duly executed by Seller;

          (d) Two (2) original counterparts of an Assignment and Assumption of
Leases ("ASSIGNMENT AND ASSUMPTION OF LEASES") substantially in the form
attached to this Agreement as Exhibit K, duly executed by Seller;

          (e) A notice to each tenant under the Leases, advising such tenant of
the transfer of the Property (the "TENANT NOTICE") substantially in the form
attached to this Agreement as Exhibit L, duly executed by Seller;

          (f) A notice to each other party to the Operational Contracts,
advising such party of the transfer of the Property and that such party should
communicate with and look to Buyer regarding performance under the applicable
Operational Contract (the "OPERATIONAL CONTRACT NOTICE");

          (g) Two (2) original counterparts of an Assignment and Assumption of
Contracts ("ASSIGNMENT AND ASSUMPTION OF CONTRACTS") substantially in the form
attached to this Agreement as Exhibit M duly executed by Seller;

          (h) Two (2) original counterparts of an Assignment and Assumption of
Intangible Personal Property ("ASSIGNMENT AND ASSUMPTION OF INTANGIBLE PERSONAL
PROPERTY") substantially in the form attached to this Agreement as Exhibit N,
duly executed 

                                       25
<PAGE>
 
by Seller;

          (i) A No Lien, Possession and Gap Affidavit substantially in the form
attached to this Agreement as Exhibit O, duly executed by Seller with any
changes reasonably requested by the Title Company to omit standard exceptions;

          (j) All keys and safe and lock combinations necessary to obtain access
to the Property;

          (k) Originals (to the extent in Seller's possession or control), or
copies, of all Operational Contracts, Leases,  and permits and licenses;

          (1) Such corporate resolutions, certificates of good standing and/or
other corporate documents relating to Seller as may be reasonably required by
Buyer or the Title Company in connection with the transaction contemplated by
this Agreement;

          (m) Original executed  estoppel certificates from the other parties to
the Parking Lease and the Tunnel Agreement and original executed tenant estoppel
certificates and/or Seller's Certificates, substantially in the forms required
by Section 6.3, for all of the Leases; provided that the estoppel certificates
for the Parking Lease and the Tunnel Agreement, and the estoppel certificates
and/or Seller's Certificates for CBM Engineers, Network Information Systems,
Gulf Interstate, and tenants occupying not less than two-thirds (2/3rds) of the
balance of the occupied square footage at the 1700 West Loop Office Tower, shall
reflect no material defaults and no material discrepancies from the information
provided to Buyer during the Due Diligence Period or the Extended Due Diligence
Period, as the case may be;

          (n) Original motor vehicle certificates of title, if any, duly
assigned to Buyer;

          (o) Acknowledgment of the terminations of the Hotel Management
Agreement and the Office Management Agreement or Seller's certification of the
delivery of said terminations in accordance with the terms of this Agreement;

          (p) Such additional documents, affidavits or instruments as may be
reasonably required by Buyer or either Title Company including, but not limited
to, separate recordable assignments for the Parking Lease and the Tunnel
Agreement in order to effectuate the Closing of the transaction contemplated by
this Agreement.

          (q) An opinion of Seller's counsel of Seller's authority to consummate
the 

                                       26
<PAGE>
 
transaction contemplated herein and of Seller's due execution of the
instruments of conveyance.

     8.2  By Buyer.  At least one business day prior to Closing Date (except in
          --------                                                             
the case of (a) below, which shall be delivered on the Closing Date), Buyer
shall deliver or cause to be delivered to Escrow Agent the following items:

          (a) The balance of the Purchase Price in accordance with Section 3.5,
                                                                   ----------- 
subject to adjustments and prorations as provided herein;

          (b) Two (2) original counterparts of the Assignment and Assumption of
Leases duly executed by Buyer;

          (c) Two (2) original counterparts of the Assignment and Assumption of
Contracts duly executed by Buyer;

          (d) Two (2) original counterparts of the Assignment and Assumption of
Intangible Personal Property duly executed by Buyer;

          (e) Wherever applicable, a re-sale tax certificate exempting Buyer
from payment of  sales tax for  items held for resale and inventory, unless
Buyer otherwise elects to pay such sales tax at the Closing;

          (f) Tenant Notices addressed to each tenant under the Leases, signed
by Buyer;

          (g) Operational Contract Notices addressed to each party to an
Operational Contract, signed by Buyer;

          (h) Such corporate resolutions, certificates of good standing and/or
other corporate documents relating to Buyer as may be reasonably required by
Seller or the Title Company in connection with the transaction contemplated by
this Agreement; and

          (i) An opinion of Buyer's counsel of Buyer's authority to consummate
the transactions contemplated herein.

          (j) Such additional documents, affidavits or instruments as may be
reasonably required by Seller or the Title Company in order to effectuate the
Closing of the transaction contemplated by this Agreement.

                                       27
<PAGE>
 
     8.3  By Buyer and Seller.  Buyer and Seller shall each execute and/or
          -------------------                                             
deliver a closing statement and such other instruments consistent with this
Agreement as are reasonably required in transactions of this type and nature in
Harris County, Texas,  Fulton County, Georgia, and Orange County, Florida.  In
addition Seller and Buyer hereby designate Escrow Agent as the "Reporting
Person" for the transaction pursuant to Section 6045(e) of the Internal Revenue
Code, if applicable.

     8.4  By Escrow Agent to Seller and Buyer.   On the Closing Date and at such
          -----------------------------------                                   
time as the adjustments and prorations to the Purchase price have been agreed
upon and completed and upon confirmation of the receipt of the Purchase Price
and provided all of the conditions precedent have been satisfied, the Escrow
Agent shall deliver the Deed as well as the other documents and items referenced
in Sections 8.1 and 8.2 that are appropriate to be delivered to Buyer.
   --------------------                                                
Likewise, at the same time Escrow Agent shall deliver the Purchase Price and the
appropriate items and documents referred in Sections 8.1 and 8.2 to Seller.
                                            --------------------           
Effective upon delivery of the Deed, actual possession of the Real Property
(subject to the rights of tenancies under the Leases and of Hotel guests) shall
pass from Seller to Buyer. Buyer's acceptance of such Deed shall be deemed to be
the full performance and discharge of Seller's obligations hereunder, except for
those obligations herein which are expressly stated to survive the Closing
hereunder.

SECTION 9.  COSTS AND EXPENSES.

     9.1  Buyer's Costs.   Buyer shall pay (i)  all recording costs of the Deed,
          -------------                                                         
(ii) all expenses or costs related to Buyer's due diligence, (iii)  Buyer's
legal, accounting and consulting fees and expenses, (iv) any brokerage or
advisory fees related to the transfer of the Property payable to Solid Rock
Advisors, Inc. and/or Mr. Greg Rice; (v) any premium for any affirmative
coverage and/or endorsements which Buyer elects to obtain with respect to the
Title Policy and the premium for any lender's policy which Buyer elects to
obtain (including any required endorsements)  (vi) all other customary closing
costs in the states of Texas, Georgia and Florida, which are customarily paid by
Buyers in the respective locations of the Property and (vii) Buyer shall also be
solely responsible for all costs and expenses associated with obtaining any
financing it may require, including, without limitation, any costs and expenses
associated with the execution, delivery or recording of the lender's documents,
if required; provided however, that obtaining any such financing shall not be a
condition precedent to Buyer's obligation to close nor shall it form the basis
for delaying the Closing or imposing any conditions on Closing.

     9.2  Equal Division of Costs.  Seller and Buyer shall divide and pay
          ------------------------                                       
equally all search fees, premiums and all other costs associated with the
issuance of  the basic Title Policy, deed stamps, transfer taxes, intangibles
taxes, documentary taxes, any escrow costs, 

                                       28
<PAGE>
 
sales taxes and survey costs for the Surveys.

     9.3  Seller's Costs.  Seller shall pay (i) the cost of preparing or
          --------------                                                
obtaining documents, consents, estoppels and terminations to be delivered by
Seller to Buyer pursuant to this Agreement (but specifically excluding however,
any sums paid or to be paid to a franchisor or licensor as a prerequisite to the
termination of any franchise or license agreement if Buyer requests that a
franchise or license be terminated); (ii) any costs required to remove any non-
Permitted Exceptions which Seller elects to remedy; (iii) Seller's legal
accounting and consultant expenses, (iv) all fees due Mr. Yet King Loy of
Goddard & Smith International Realty, Inc., and (v) other closing costs
customarily paid by sellers in the respective locations of the Property.

     9.4  Other Costs.  Each party shall pay its own attorneys' fees, and the
          -----------                                                        
fees and expenses of any other professionals or consultants retained by it.

SECTION 10.  ADJUSTMENTS AND PRORATIONS.

     10.1 Prorations.  It is the intent of Seller and Buyer that, except as
          ----------                                                       
expressly provided in this Agreement to the contrary, all income and expenses of
the Property shall be prorated as of the Closing Date with the intent that
Seller shall have the benefit of all income and be responsible for all expenses
and liabilities incurred in connection with the Property prior to the Cut-Off
Time, and Buyer shall have the benefit of all income and be responsible for all
expenses and liabilities of the Property incurred from and after the Cut-Off
Time.  The Purchase Price shall be adjusted based on the prorations between
Seller and Buyer as of the Cut-Off Time as provided by this Section 10.
                                                            ---------- 

     10.2 Taxes and Assessments.  All real estate and personal property taxes
          ---------------------                                              
and assessments on the Property for the tax year in which the Closing occurs
shall be prorated as of the Closing Date based on the actual current tax bills,
using the maximum discounts allowed by law.  If the Closing takes place before
the real estate and personal property taxes are fixed for the tax year in which
the Closing occurs, real estate and personal property taxes shall be prorated on
the basis of the taxes for the immediately preceding year.  All delinquent taxes
and all delinquent assessments, if any, on the Property shall be paid at Closing
from funds accruing to Seller.  Taxes which have been prorated based on the
prior year's taxes shall be reprorated upon written request of either party made
to the other within thirty (30) days after the tax bills are rendered.  Any tax
refunds received by Buyer which are allocable to the period prior to Closing
shall be promptly paid by Buyer to Seller.   Similarly, Seller shall promptly
reimburse Buyer for taxes and assessments paid by Buyer that exceed Buyer's pro
rata share of such taxes and assessments for the year of Closing. Each party
shall be responsible for any tax refunds owed to tenants for its period of
ownership of the Property.

                                       29
<PAGE>
 
     10.3 Rents and Security Deposits.
          --------------------------- 

          (a) Rents allocable to the period prior to Closing shall be the
property of Seller and rents allocable to the period after Closing shall be the
property of Buyer.  Rents and expense escalations or other reimbursements due to
Seller as landlord under the Leases and actually collected prior to the Closing
Date and attributable to both Seller's and Buyer's period of ownership shall be
prorated as of the Closing Date.  Uncollected rents and expense escalations or
other reimbursements due  Seller under the Leases shall not be prorated at the
time of Closing and Seller shall have the right to take all necessary and
appropriate action to collect all such rents and expenses.  Such collection
efforts may include the bringing of lawsuits by Seller to collect such rents and
expenses.  If any Lease contains obligations on the part of any tenant for tax,
escalation, percentage, or overage payments and the same are not yet payable as
of the Closing Date, and if Seller's portion of same is collected by Buyer, then
Buyer shall promptly remit such amounts to Seller, less actual third party
collection costs, if any. Buyer shall in good faith exercise commercially
reasonable efforts to collect all past due rents and expenses, if any, on
Seller's behalf and any such amounts so collected shall be received in trust for
Seller and Buyer shall tender the same to Seller upon receipt, less actual
third party collection costs, if any; provided, however, that Buyer shall not be
required to file suit or institute other collection procedure to collect such
sums on Seller's behalf, and provided further that all rents, escalations and
other reimbursements due under the Leases, collected by Buyer on or after the
Closing Date shall  be applied (unless the tenant otherwise specifies in
writing) first to all amounts due under the Leases to Seller which are
delinquent thirty (30) days or less at the time of Closing, second, to amounts
owed to Buyer since the Closing, and third, to amounts owed to Seller which are
more than thirty (30) days delinquent at the time of Closing.  Buyer shall not
have an exclusive right to collect the sums due Seller under the Leases; and
Seller hereby retains all its rights to pursue any tenant under the Leases for
sums due Seller for periods attributable to Seller's ownership of the Property.
Buyer shall receive a credit against the Purchase Price for (i) all security
deposits, which shall be assigned to Buyer at Closing, plus any interest due
thereon as required by the particular lease or applicable law; and (ii) pre-paid
rentals held by Seller under the Leases.

          (b) Attached hereto as Exhibit C is a current Rent  Roll for the
Property. On that date which is ten (10) days prior to the Closing, Seller shall
provide Buyer with an updated rent roll (or other document) which will itemize
all security deposits and deductions made therefrom.  This updated Rent Roll
shall be used to establish the adjustments and credits described above.  Buyer
assumes the obligation to tenants for such security deposits credited against
the Purchase Price and shall indemnify and hold Seller harmless from any claim
with respect thereto (which obligation shall survive the Closing).

                                       30
<PAGE>
 
     10.4 Lease Expenses.
          -------------- 

          (a)  Leasing Commissions.  If Closing occurs, Seller shall indemnify
               --------------------                                           
and hold Buyer harmless from any claims for leasing commissions  ("Commissions")
paid or payable prior to the Effective Date with respect to existing Leases.
Notwithstanding the preceding sentence, Seller and Buyer agree that at Closing
Buyer shall reimburse Seller for a pro rata portion of commissions paid or
payable with respect to the lease or renewal of leases prior to Closing for the
term with Gulf Interstate Engineering, Inc., the Brazilian Consulate and H.K.
Ward.  The portion of reimbursement to Seller shall be prorated between Seller
and Buyer based on the  term or renewal terms, as the case may be, of the
foregoing Leases and the Closing Date with  Buyer being responsible for that
portion of the Commissions  equal to the amount of the term of the respective
leases remaining after the Closing Date.  If Closing occurs, Buyer shall pay and
shall indemnify and hold Seller harmless from any and all  Commissions  payable
with respect to the renewal, extension or expansion of existing Leases
subsequent to Closing, including Commissions payable pursuant to lease
commission agreements, but only to the extent such commission agreements are
disclosed to Buyer in writing during the Due Diligence Period or the Extended
Due Diligence Period, as the case may be.  Buyer agrees to cooperate with and to
assist Seller in obtaining a complete release of liability for payment of the
Commissions with Buyer thereby formally assuming such obligations.

          (b)  Lease Expense Reimbursement.  If  Closing occurs, Buyer shall (i)
               ----------------------------                                     
reimburse Seller on the Closing Date for a pro rata portion of any and all fees
paid or expenses incurred, including Tenant upfitting and improvement costs
(collectively the "Expenses"), paid or incurred by Seller prior to Closing Date
which are attributable to (pursuant to the amortization described below) periods
extending beyond the Closing Date, arising our of or in connection with  (a) the
Leases, (including any extensions, renewals or expansions under the Leases)
entered into by Seller on or after January 1, 1997 and (b) any new leases within
the Property which were approved by Seller and if required, Buyer on or after
the Effective Date as provided below.  Such prorata portion shall be determined
by "amortizing" the applicable Expenses over the initial term of the applicable
Lease, with Buyer to be responsible for that portion attributable to the period
commencing on the Closing Date and forward.  If Seller desires to execute a
renewal, amendment, extension or expansion of a Lease or execute a new lease
with a potential tenant for space in the Property after the Effective Date, but
prior to the end of the Due Diligence Period or the Extended Due Diligence
Period, as the case may be, Seller shall promptly provide Buyer with a summary
of the material terms  (with rent and other economic terms at market rates)
which Seller proposes to offer the applicable tenant with respect to the
applicable space (which summary shall include the identity of the tenant and
copies of any applicable financial information with respect to such tenant
provided to Seller without representation or warranty of any kind and 

                                       31
<PAGE>
 
an estimate of the cost of tenant improvements, free rent, leasing commissions
and other leasing expenses) and Seller shall retain the full right, power and
authority at any time prior to the expiration of the Due Diligence Period or the
Extended Due Diligence Period, as the case may be, to execute a lease under the
terms set forth in such summary, and Seller shall promptly advise Buyer of
Seller's election to do so. Upon the expiration of the Due Diligence Period or
the Extended Due Diligence Period, as the case may be, if Seller desires to
execute a renewal, amendment or expansion of the Lease to the extent within
Seller's discretion under the terms of the particular Lease, or a new lease,
Seller shall likewise provide the necessary summary to Buyer and Buyer shall
advise Seller in writing whether or not it approves of the summary (said
approval not to be unreasonably withheld), within five (5) business days after
receipt of each summary. If Buyer fails to notify Seller within such time
period, Buyer shall be deemed to have approved the terms set forth in such
summary and Seller shall be free to enter into the transaction contemplated by
such summary.

     10.5 Utilities.  Seller shall notify all utility companies servicing the
          ---------                                                          
Property of the sale of the Property to Buyer and shall request that such
companies send Seller a final bill for the period ending on the last day before
the Closing.  Buyer shall notify the utility companies that all utility bills
for the period commencing on the Closing Date are to be sent to Buyer,  and
Buyer shall arrange for substitute deposits with the utility companies as may be
required.  If following the Closing either Buyer or Seller receives a bill for
utilities or other services provided to the Property for the period in which the
Closing occurred, Buyer and Seller shall  prorate the bill based on the period
of each party's ownership of the Property.

     10.6 House Banks and Other Accounts.  Seller shall at Closing transfer  all
          ------------------------------                                        
house banks to Buyer, presenting Buyer with a certified statement setting out
the amount contained in the house banks as of the Cut-Off Time, and  credit to
Seller shall be made at Closing.  All cash, including, without limitation, any
cash located in FF&E Reserve Accounts as required under the Marriott Franchise
Agreement, Radisson License Agreement (Atlanta) and Radisson License Agreement
(Orlando) and any cash located in  any bank and investment accounts maintained
for the benefit of  Seller, as of the Closing Date, shall belong to Seller and
Seller may, at its option, "close out" all such accounts.

     10.7 Personal Property.  If any items of Tangible Personal Property as
          -----------------                                                
identified in the list of Tangible Personal Property set forth in Exhibit E are
lost or misplaced, prior to Closing, Buyer shall receive at Closing a credit
against the Purchase Price for the value of same, provided that (i) the value of
any individual lost or misplaced item exceeds $1,000, or (ii) the value of all
lost or misplaced items exceeds $20,000 in the aggregate.

     10.8 Other  Prorations.  All payments payable under Operational Contracts
          -----------------                                                   
and Intangible Personal Property, including all licenses, permits and inspection
fees (calculated 

                                       32
<PAGE>
 
on the basis of the period covered); fees and expenses paid or payable under the
License Agreements to the extent assigned to Buyer; guest room revenue from the
Hotel (based upon the guest ledger prepared by Seller as of the date prior to
the Closing Date), whether in cash or accounts receivable, reduced, as
applicable, by any commissions or other similar amounts owing with respect to
room rentals; revenues from the minibars, vending machines, coin telephones or
other income producing equipment; income and expenses from the operation of any
parking garage, restaurants, bars or banquet facilities; and all other revenue
and expenses normal to the operation and maintenance of the Real Property and
the Improvements located thereon shall be calculated and prorated as set forth
in Section 10.1 above; provided that (i) Hotel room income
   ------------                                           
for the night preceding the Closing Date shall be divided equally between Buyer
and Seller as and when collected net of all applicable collection charges,
including, without limitation, any applicable credit charge commissions or
similar charges; (ii) prepaid Hotel Bookings (and/or deposits with respect to
same), to the extent actually in the possession of Seller, shall be credited to
Buyer at Closing and (iii) payroll, Benefit Plans and taxes related to Property
Employees and Benefit Plans shall be the responsibility of Seller up to the Cut-
Off Time and Seller shall pay all Property Employees all amounts owed to such
employees, including amounts owed on account of accrued and unpaid benefits
(whether or not earned) including accrued and unpaid vacation pay and sick
leave.  The net amount of such prorations and credits owed by Seller or Buyer
shall be paid in cash or by credit on the Closing Statement executed at Closing.

     10.9 Method of Proration.  All prorations shall be made as of the date of
          -------------------                                                 
Closing based on a 365 day year  and on the actual number of days elapsed.
 
     10.10     Closing Statement and Adjustments.  On or before the date which
               ---------------------------------                              
is ten (10) business days prior to the Closing Date, Buyer and Seller agree to
jointly prepare a pro-forma closing statement and a pro-forma proration
schedule.  The pro-forma closing statement and pro-forma proration schedule
shall be updated by Buyer and Seller as required, but at least three (3)
business days prior to the Closing Date. The parties further agree that
prorations and adjustments to the Purchase Price shall be made as early on the
Closing Date as practicable.  In the event the information necessary to make
such adjustments has not been furnished to the parties such that all of the
prorations cannot be finalized on the Closing Date, at a time when Seller and
Buyer have agreed on all other matters, and the Closing shall have been
otherwise completed, then the parties agree to instruct the Escrow Agent that
the Closing shall be completed, and  the parties will take such efforts as may
be required to obtain the necessary information and complete the prorations
which have not been finalized as of the Closing Date, such final reconciliation
to occur not later than thirty (30) days after the Closing Date.  Upon such
final reconciliation of such prorations, the net amount payable pursuant to the
prorations shall be paid by the party owing same to the party entitled to same,
by separate check.  All errors and adjustments with respect to this Section 10
                                                                    ----------
shall be 

                                       33
<PAGE>
 
adjusted as soon as same are determined, but in any event within one (1) year
after the Closing Date.

     10.11  Accounts Receivable.  Seller shall prepare or cause  to be
            --------------------                                      
prepared an itemized schedule of all Accounts Receivable known to Seller,
including outstanding balances.  All Accounts Receivable shall remain the
property of Seller and there shall be no adjustment to the Purchase Price for
Accounts Receivable.  Seller shall be solely responsible for the collection of
its Accounts Receivables.  Following the Closing Date, to the extent Buyer
receives any  such Accounts Receivable belonging to Seller, Buyer shall hold all
such sums so received in trust for the benefit of Seller and promptly remit the
same to Seller.  Seller or its agent shall have the right to examine Buyer's
books and records in order to monitor the collection of Accounts Receivable and
to insure their proper allocation in accordance with the provisions of this
Agreement. With regard to any Accounts Receivable collection made after the
Closing Date from any person or entity who is indebted to the Property, both
with respect to Accounts Receivable accruing prior to the Closing Date and to
accounts receivable accruing subsequent to the Closing Date, such collections
received by Buyer after the Closing Date shall be applied first to the
indebtedness  accruing prior to the Closing Date, unless the account debtor
specifies in writing that the payment is to be applied to a particular account,
in which event the payment shall be applied to the account so designated.

     10.12  Accounts Payable.  Seller shall prepare or  cause  to be prepared
            ----------------                                                 
at Closing, an itemized schedule of all Accounts Payable known to Seller or the
Manager, consisting of those Accounts Payable which are not prorated pursuant to
this Section 10 (but rather pertain to prior periods).  All Accounts Payable
     ----------                                                             
shall remain the responsibility of and shall be paid for by Seller.

     10.13  Contracts for Capital Improvements.  Except as otherwise provided in
            ----------------------------------                                  
Section 10.4(b) or Section 11.10(e), Seller agrees that unless Buyer shall
otherwise agree in writing, all costs and expenses arising under any contract
for capital improvements to the Property entered into by Seller prior to the
Effective Date shall be borne by Seller, and Buyer shall not be required to pay
any such costs or expenses.  To the extent any work under any such contract is
not completed by the Closing Date, Buyer shall provide access to the Property
for the completion of such work and shall look solely to the applicable
contractor for any claim arising out of the performance of such work.  Seller
shall furnish to Buyer a list of any such capital improvements within fifteen
(15) days after the Effective Date.

     10.14  Survival.  The provisions of this Section 10 shall survive the
            --------                          ----------                 
Closing.

SECTION 11. SELLER'S REPRESENTATIONS, WARRANTIES AND COVENANTS.

                                       34
<PAGE>
 
     Seller makes the representations, warranties and covenants set forth in
this Section  11 and acknowledges that Buyer will rely on such representations,
     -------- --                                                               
warranties and covenants in acquiring the Property.  The representations,
warranties, and covenants set forth in this Section  11 shall survive Closing
                                            -------- --                      
for a period of one year; provided, however, that any claims for any alleged
breach of representations and warranties under this Section  11 must be made by
                                                    -------- --                
Buyer in writing (stating the  legal basis for same), within such one year
period, but in no event later than forty-five (45) days after Buyer first learns
of or discovers such breach, and to the extent claims are not so made (stating
the  legal basis for same) within the applicable period specified herein, such
claims shall be deemed forever waived and barred.

     11.1   Authority.  Seller has the legal power, right and authority to enter
            ---------                                                           
into this Agreement and the instruments referenced herein, and to consummate
this transaction.

     11.2   Actions.  All requisite action (corporate, trust, partnership or
            -------                                                         
otherwise) has been taken by Seller in connection with the entering into of this
Agreement, the instruments referenced herein, and the consummation of this
transaction.  No further consent of any partner, shareholder, creditor,
investor, judicial or administrative body, governmental authority or other party
is required on the part of the Seller.

     11.3   Due Execution.  The individuals executing this Agreement and the
            -------------                                                   
instruments referenced herein on behalf of Seller and the partners, officers or
directors of Seller, if any, have the legal power, right, and actual authority
to bind each party to the terms and conditions of those documents.

     11.4   Valid and Binding.  This Agreement and all other documents required 
            -----------------       
to close this transaction are and shall be valid, legally binding obligations of
and enforceable against Seller in accordance with their terms, subject only to
applicable bankruptcy, insolvency, reorganization, moratorium laws or similar
laws or equitable principles affecting or limiting the rights of contracting
parties generally.

     11.5 Leases; Possession of the Property.  Except for (i) the Leases, (ii)
          ----------------------------------                                  
Hotel Bookings, (iii) current Hotel guests and occupants, (iv) Seller has not
entered into any lease or other agreement for possession with any person or
entity (except Buyer) pursuant to which such person or entity has any current or
future right or interest to occupy, possess or use all or any portion of the
Property after the Closing Date.

     11.6 Non-Foreign Entity.  Seller is not a "foreign person" within the
          ------------------                                              
meaning of Section 1445(f)(3) of the Internal Revenue Code.

     11.7 Violations of Laws.  Except as set forth in Exhibit P, Seller has no
          ------------------                                                  
actual 

                                       35
<PAGE>
 
knowledge of and has received no written notice of any uncured violation of any
municipal, county, state or federal law, ordinance, regulation or code
(including environmental laws) which affect or involve the Property.

     11.8 Suits.  Except as set forth in Exhibit Q,  Seller has not been served
          -----                                                                
with any summons or complaint or other papers or process in, or has any
knowledge of, any actions, suits, litigation arbitrations, administrative
proceedings or condemnation proceedings which affect or involve the Property.

     11.9  Collective Bargaining Agreements.   Seller has not entered into any
           --------------------------------                                   
collective bargaining agreement concerning any employees at the Property and no
such collective bargaining agreement covering employees at the Property has been
entered into by any third party manager engaged by Seller to manage the
Property.

     11.10  Operational Contracts and Leases.
            -------------------------------- 
 
          (a)  Operational Contracts.  To the actual knowledge of Seller: (i)
               ------------------------                                      
the Schedule of Operational Contracts when delivered, will be a true, correct
and complete list of all Operational Contracts and contain an accurate listing
of all deposits in effect at that time; (ii) the copies of the Operational
Contracts, when delivered to Buyer, will be true, complete and correct copies of
such Operational Contracts including, without limitation, all amendments,
modifications, renewals and extensions thereof;  (iii) all Operational Contracts
are in full force and effect and no material default exists thereunder which has
not been disclosed to Buyer and no condition exists that, with the giving of
notice or passage of time, or both, would constitute a material default.  To the
extent any Operational Contract exists which is not included on the Schedule of
Operational Contracts, Buyer shall have no obligation to assume the liability
for such omitted Operational Contract.

          (b)  Leases.  To the actual knowledge of Seller: (i) the Schedule of
               ------                                                         
Leases when delivered, will be a true, correct and complete list of all Leases
and contain an accurate listing of all deposits in effect at that time; (ii) the
copies of the Leases, when delivered to Buyer, will be true, complete and
correct copies of such Leases including, without limitation, all amendments,
modifications, renewals and extensions thereof; (iii) all Leases are in full
force and effect and no material default exists thereunder which has not been
disclosed to Buyer and no condition exists that, with the giving of notice or
passage of time, or both, would constitute a material default.

     11.11 Tangible Personal Property.  All Tangible Personal Property
           --------------------------                                 
(other than those covered by the Operational Contracts) and all Supply
Inventories have been fully paid for and are owned by Seller free and clear of
all liens and encumbrances.

                                       36
<PAGE>
 
     11.12. Lease for Adjacent Land.  Except for the Parking Lease and the
            -----------------------                                       
Tunnel Agreement, there are no leases or licenses for the use of adjacent land
or facilities.

     11.13. Updated Financial Statement.  To the extent that the Financial
            ----------------------------                                  
Statements provided by Seller pursuant to Section 4.2 hereof for the current
year do not include any period up to and including the Closing Date, Seller
shall, within twenty-five (25) days after the Closing Date, provide Buyer with
monthly unaudited Financial Statements, and income statements applicable to such
period inclusive of the Closing Date.

     11.14 Pre-Closing Covenants.  Notwithstanding all of Buyer's rights to
           ---------------------                                           
purchase the Property under this Agreement, but subject to the terms and
provisions of this  Section  11.14, Seller hereby retains all rights to own,
                    -------- -----                                          
operate, lease, contract, or otherwise exercise the rights of the ownership of
the Property prior to Closing without the consent or approval of Buyer;
provided, however, that so long as this Agreement remains in full force and
effect:

          (a) Seller shall not convey any interest in the Property other than
provided for in this Agreement and shall not subject the Property to any
additional liens, encumbrances, covenants, conditions, easements, rights of way
or similar matters after the Effective Date, except as may be otherwise provided
for in this Agreement, which will not be removed or eliminated at or prior to
Closing;

          (b) Except as may be required as part of its responsibilities as
landlord under a Lease, Seller shall not make any new material alterations to
the Property except those alterations contemplated by Seller's current Contracts
for Capital Improvements Plan pursuant to Section 10.13 and those material
                                          -------------                   
alterations which may be required of an emergency nature without Buyer's prior
written consent;

          (c) Seller shall maintain and operate  the Property in substantially
the same condition, and the Supply Inventories at substantially the same levels,
as of the Effective Date, ordinary wear and tear excepted, and shall use
reasonable good faith efforts to cause the Manager to manage the Property in
substantially the same manner as the Manager has managed the Property during the
period from the date on which the Manager was appointed as manager of the
Property to the Effective Date including, without limitation, Seller shall:

               (i) accept Hotel Booking (exclusive of "trade-out" agreements)
                   for the use of the Hotel on terms not less favorable than the
                   terms typically arranged by Seller as of the date of this
                   Agreement and in accordance with Seller's prior practice;

              (ii) maintain the current level of advertising and other
                   promotional 

                                       37
<PAGE>
 
                   activities for Hotel facilities;

             (iii) remain in substantial compliance with all current License
                   Agreements;

              (iv) keep and maintain the Property in a state of repair and
                   condition consistent with the requirements of clause (c)
                   above;

               (v) not cause or permit the removal of Tangible Personal Property
                   from the Property except for the purpose of discarding and
                   replacing, where needed or appropriate, worn items, and
                   timely make all repairs, maintenance, and replacements to
                   keep the Property and all Tangible Personal Property in good
                   operating condition;

              (vi) not allow any permit, license or other Intangible Personal
                   Property or other right currently in existence with respect
                   to the operation, use, occupancy or maintenance of the
                   Property to expire, be canceled or otherwise terminated,
                   except pursuant to their respective terms, without Buyer's
                   prior written consent;

             (vii) except in the exercise of Seller's reasonable business
                   judgment, not cancel any existing Hotel Bookings for the use
                   of Property facilities or new Hotel Bookings obtained by
                   Seller after the date of this Agreement, and continue to book
                   contracts and reservations consistent with prior practices;

            (viii) keep the existing insurance coverage for the Property in full
                   force and effect;

        (d) Following the expiration of the Due Diligence Period or Extended Due
Diligence Period, as the case may be, and upon Buyer's election to proceed to
Closing Seller shall permit Buyer to establish and maintain a shadow management
operation with respect to the Hotel prior to the Closing Date. Subject to the
provisions of Section 5, personnel from Buyer's shadow management operation
              ---------                                          
shall have reasonable access during normal business hours to all books, records
and other information in the possession or control of Seller or its agents
concerning the Hotel and shall have the right (at Buyer's expense) to establish
duplicate books and records in order to effect a smooth transition in the
ownership and management of the Hotel; provided, however, that Buyer and its
shadow management operation and employees (a) shall not unreasonably interfere
with the normal management 

                                       38
<PAGE>
 
and operation of the Hotel (b) shall hold all information acquired from such
books and records confidential in accordance with the provisions of this
Agreement, (c) shall repair any damage to the physical condition of the Hotel
caused by Buyer or its agents in any such shadow management operation, and (d)
shall not be deemed to have assumed management responsibilities prior to closing
by virtue of such shadow management.

        (e) Subject to the provisions contained in Section 5 above, Buyer and
Buyer's authorized representatives and employees shall have the right, at
Buyer's sole cost, risk and expense, from time to time to enter upon and pass
through the Property during normal business hours and upon reasonable notice to
Seller to examine and inspect, subject to and not including the Excluded Items,
all of the then existing books, records, surveys, plans, specifications,
permits, certificates of occupancy and other files that are relevant to the
management, ownership, operation, use, occupancy, construction or leasing of the
Property, are in Seller's possession or control, and have not been otherwise
provided to Buyer as required elsewhere herein.  Further, subject to, and not
including the Excluded Items, Buyer's representatives shall have access to all
financial and other information relating to the Property sufficient to enable
them to prepare audited financial statements in conformity with Regulation S-X
of the Securities and Exchange Commission (the "SEC") and to enable them to
prepare a registration statement, report or disclosure statement for filing with
the SEC on behalf of  American General Hospitality Corporation (the REIT) and/or
its affiliates.  On or before that date which is ten (10) days prior to the
expiration of the Due Diligence Period, Seller shall furnish to Buyer a draft of
the formal representation letter that Seller will execute with respect to its
financial records.  Seller will arrange for its external auditors to allow
Buyer's accountant, Coopers & Lybrand, to access their audit work papers, not
including Extended Items, for as many years (provided such records or work
papers exist) as are required for SEC reporting purposes and will allow Coopers
& Lybrand to make copies and extracts of such work papers.

          (f) Seller shall keep and perform all of the material obligations to
be performed by Seller under the Operational Contracts.  After expiration of the
Due Diligence Period, or the Extended Due Diligence Period as the case may be,
Seller shall not, without the prior written consent of Buyer, which shall not be
unreasonably withheld or delayed, enter into any new Operational Contracts
unless the same can be terminated without penalty on not more than sixty (60)
days notice or upon the sale of the Property.  Buyer's consent to any new
Operational Contracts shall be deemed given unless Buyer shall object to same in
writing within ten (10) days after Seller shall have delivered a copy of the
proposed Operational Contract to Buyer;

          (g) Seller shall keep and perform all of the material obligations to
be performed by Seller under the Leases.  After the expiration of the Due
Diligence Period, or 

                                       39
<PAGE>
 
the Extended Due Diligence Period, as the case may be, Seller shall not, without
Buyer's written consent, which shall not be unreasonably withheld or delayed,
enter into any new Leases or modify the terms of any existing Leases. Buyer's
consent to any new Leases or modifications of any existing Lease shall be deemed
given unless Buyer shall object to same in writing within five (5) business days
after Seller shall have advised Buyer in writing of the material terms and
provisions of same (the rentals and other sums payable shall be at market rate),
including an estimate of expenses related thereto. Buyer shall be responsible
for all brokerage commissions and tenant improvement costs associated with any
such new or modified Lease unless Buyer shall have objected to same within such
five business day period, or unless this transaction fails to close. Buyer shall
be responsible to pay, or to reimburse Seller for, as applicable, its pro rata
share of any and all brokerage commissions and tenant improvement costs
associated with the exercise by any of the tenants under the Leases, after the
Effective Date, of any options to renew or extend the term of such Leases in
accordance with the terms of such Leases, unless this transaction fails to close
for any reason.

          (h) Seller shall deliver written notice  containing a summary of terms
to Buyer contemporaneously with entering into any written contractual
arrangement for Hotel Bookings at any time between the Effective Date and the
Closing Date which (i) provides for consideration to be received by Seller in
excess of $25,000 with respect to any such single contractual arrangement, or
(ii) provides for Hotel Bookings covering any period more than one (1) year
after the Closing Date. Seller shall not, at any time between the Effective Date
and the Closing Date enter into any contractual arrangement,  including  any
"trade out agreements", for the period after the Closing Date which provides for
a rate which is materially below customary or historically established rates for
the applicable facility or service.

          (i) To the extent that Seller learns prior to Closing, to the Actual
Knowledge of Seller, of any material inaccuracy, misstatement or omission in any
of the Documents furnished to Buyer or in any of the representations or
warranties set forth above, Seller shall promptly in writing notify Buyer of
such inaccuracy, misstatement or omission and shall supply Buyer with updated
information or schedules as required.
 
     11.15 Survival.  The provisions of this Section 11 shall survive
           --------                          ----------              
Closing.

SECTION 12.  BUYER'S REPRESENTATIONS, WARRANTIES AND COVENANTS.

     Buyer hereby represents and warrants to Seller as follows, which
representations and warranties shall be true as of and shall survive the
Closing:

                                       40
<PAGE>
 
     12.1  Independent Investigation.  Buyer will make such independent
           --------------------------                                  
investigations as Buyer deems necessary or appropriate concerning the
suitability of the Property and the physical condition of all improvements,
including but not limited to any desired investigations of any surface, soil,
seismic, subsoil, or other physical and/or environmental conditions of or
affecting the Property, the extent or condition of title to the Property, the
feasibility of any improvements to the Property, and all present or future
governmental laws, statutes, rules, regulations ordinances, limitations,
restrictions or requirements concerning the Property or use or suitability of
the Property.
 
     12.2  As Is Acquisition.  Buyer acknowledges that Buyer is a
           -----------------                                     
sophisticated purchaser who is familiar with property of the same type as the
Property, and that Buyer is acquiring the property "as is," in its present state
and condition and "with all faults," without any representation by Seller or its
representatives as to any matter, including the condition of the Property or
Buyer's ability to sell or make improvements to the Property or any portion
thereof, other than those representations and warranties expressly mentioned in
this Agreement.  Subject to Buyer's right to terminate this Agreement during the
Due Diligence Period and the satisfaction of each of the closing conditions set
forth in Section 7.1, no patent or latent condition affecting the Property in
         -----------                                                         
any way, such as but not limited to the matters described above, whether or not
now known or discoverable, or hereafter discovered. shall affect Buyer's
obligation to purchase the Property, or give rise to any right of damages,
rescission or otherwise against Seller.

     12.3  Hazardous Substances.  Except as set forth in Section 15 below, Buyer
           ---------------------                                                
specifically acknowledges that Seller makes no representations or warranties
regarding the presence of any Hazardous Substances on or under the Property and
Buyer has made or will make its own independent investigation of the Property
with regard to the presence of Hazardous Substances Buyer deems appropriate.

     12.4  Authority.  Buyer has the legal power, right and authority to enter
           ----------                                                         
into this Agreement and if Buyer elects to proceed to Closing at the end of  the
Due Diligence Period, or the Extended Due Diligence Period as the case may be,
Buyer will have  the legal power, right and authority to proceed to Closing and
to consummate this transaction.

     12.5 Actions.  All requisite action (corporate, trust, partnership or
          --------                                                        
otherwise) has been taken by Buyer in connection with the entering into of this
Agreement, and, if Buyer elects to proceed to Closing at the end of the Due
Diligence Period or the Extended Due Diligence Period, as the case may be, with
the consummation of this transaction.  Subject as aforesaid, no further consent
of any partner, shareholder, creditor, investor, judicial or administrative
body, governmental authority or other party is required on the part of the
Buyer.

                                       41
<PAGE>
 
     12.6 Due Execution.  The individuals executing this Agreement and the
          --------------                                                  
instruments referred herein on behalf of Buyer and the partners, officers or
trustees of Buyer, if any, have the legal power, right and actual authority to
bind  Buyer to the terms and conditions of those documents.

     12.7 Valid and Binding.  This Agreement and all other documents required to
          ------------------                                                    
close this transaction are and shall be valid, legally binding obligations of
and enforceable against Buyer in accordance with their terms, subject only to
applicable bankruptcy, insolvency, reorganization, moratorium laws or limiting
the rights of contracting parties generally.

     12.8  Review of Documents.  Buyer has or will conduct such review of the
           -------------------                                               
Documents and any other reports or documents related to the Property furnished
by Seller or obtained by Buyer as it deems necessary or appropriate.

     12.9  Authority to Do Business.  Buyer is a duly formed and valid existing
           ------------------------                                             
limited partnership under the laws of the State of  Delaware and, to the extent
required, is or will be qualified to conduct business in the states in which the
Property is located.

     12.10  Waiver of Default.  After Closing, Seller shall have no liability
            -----------------                                                
for, or as the result of, any default  or breach of this Agreement by Seller
which was known to the Actual Knowledge of Buyer prior to Closing.  In the event
that Buyer has Actual Knowledge of Seller's breach or default of this Agreement,
Buyer's election to proceed to Closing shall constitute a waiver of any and all
post-closing rights and remedies against Seller as a result of such default or
breach.

     12.11  Survival.  The provisions of this Section 12 shall survive
            --------                          ----------              
Closing.

SECTION 13.  ASSUMPTION OF ALL OPERATIONAL CONTRACTS.

     13.1 Assignment.  Subject to Section 4 hereof, Seller shall, at Closing,
          ----------                                                         
assign and transfer to Buyer, and Buyer shall assume and agree to perform all
Operational Contracts pursuant to the Assignment and Assumption of Operational
Contracts.

     13.2 Consent.  Seller and Buyer acknowledge that certain Operational
          -------                                                        
Contracts may require the consent of the third party thereto as a condition to
the transfer or assignment of same.  Seller and Buyer agree to cooperate with
the other in all reasonable respects, in order to obtain the requisite consents
prior to  Closing.  Buyer shall promptly furnish any information which may be
reasonably requested by an applicable third party for the purpose of obtaining
such third party's consent.  In the event that any required third party consent
has not been obtained on the Closing Date, then, at Seller's option, Seller may
elect to assign or 

                                       42
<PAGE>
 
not assign such Operational Contract, and to the extent so assigned, Buyer shall
nevertheless assume such Operational Contract and Seller shall indemnify Buyer
for any liability arising as a result of the failure to obtain such consent (but
such indemnity shall not excuse Buyer from performing obligations under the
Operational Contracts which are assumed by Buyer).

     13.3 Survival. The provisions of this Section 13 shall survive the Closing.
          --------                         ----------                           

SECTION 14.  TRANSFER OF LIQUOR LICENSES.

     14.1 Acknowledgments.  Buyer and Seller acknowledge that the issuance and
          ---------------                                                     
transfer of the Liquor Licenses is statutorily regulated pursuant to the laws of
the States of Texas,  Georgia, and Florida, and is subject to the approval of
the appropriate agency or commission of each state.  Buyer acknowledges that
Buyer shall be responsible to either arrange for an assignment of the current
liquor license (if allowed by law) or at Buyer's option, to apply for and obtain
a liquor license for the Hotel from the appropriate agency or commission.

     14.2 Buyer's Obligation to Comply with Statutes.  Buyer shall be
          ------------------------------------------                 
responsible for complying, at its sole cost and expense, with all statutes and
regulations applicable to the transfer of the Liquor Licenses (or obtaining new
liquor licenses, if applicable), including, but not limited to, paying all
filing or application fees, licenses and transfer fees, sales or use taxes, and
all other fees and expenses incurred in connection with the transfer of the
Liquor Licenses.  Seller agrees to cooperate with Buyer (provided such
cooperation can be furnished at no cost, expense or liability to Seller) in
obtaining either the transfer of the Liquor Licenses or obtaining new liquor
licenses, including  execution of all required forms and permitting all required
inspections. Seller also agrees to cooperate with Buyer, and shall execute such
transfer forms, applications and other documents as may be reasonably necessary
for Buyer or its designees to obtain all permits, licenses, approvals and other
authorizations necessary or desirable to operate the Hotel and all restaurants,
bars and lounges presently located therein.

     14.3 Transfer of Licenses Not a Condition Precedent.  Buyer acknowledges
          ----------------------------------------------                     
that the transfer of the Liquor Licenses to Buyer (or the issuance of a new
liquor license to Buyer) is not a condition precedent to Closing, and that the
sole risk with respect to the transfer of the Liquor Licenses (or the issuance
of new liquor licenses) is on Buyer.  Seller agrees to use reasonable good faith
efforts to request Hotel Manager to cooperate with Buyer or its designee, if
necessary, in the post-Closing use of the Liquor Licenses if permitted under
local law.

     14.4  Indemnification.  Buyer and Seller agree to indemnify, defend and
           ---------------                                                  
hold  each 

                                       43
<PAGE>
 
other harmless from any and all claims, demands, liabilities, costs, expenses,
charges and losses caused or causes of action and suit or suits of any nature,
whatsoever, arising out of their respective use of the Liquor Licenses or their
respective failure to comply with all applicable laws and regulations concerning
the sale of alcoholic beverages at the Real Property pursuant to the Liquor
Licenses or generally.

     14.5 Survival.  The provisions of this Section 14 shall survive the Closing
          --------                          ----------                          
and the transfer of the Liquor Licenses or the earlier termination of this
Agreement.

SECTION 15.  HAZARDOUS SUBSTANCES.

     15.1 Seller's Representations and Warranties.  Seller has obtained the
          ---------------------------------------                          
Environmental Report(s) for the Property and shall furnish a copy to Buyer.  As
of the date of this Agreement, except as referred to in the Environmental
Report(s):

          (a) since the date of Seller's acquisition of the Property, no
Hazardous Substances are now or have been used or stored on or within any
portion of the Property except those substances which are or have been used or
stored on the Property in the normal course of use and operation of the Property
and in compliance with all applicable Environmental Laws;

          (b) since the date of Seller's acquisition of the Property, there are
and have been no federal, state or local enforcement, clean-up, removal,
remedial or other governmental or regulatory actions instituted or completed
affecting the Property; and

          (c) no claims have been made by any third party against Seller
relating to any Hazardous Substances on or within the Property.

     15.2 Notices Regarding Hazardous Substances.  Except as disclosed in the
          --------------------------------------                             
Environmental Report, from the Effective Date through the Closing Date, Seller
shall promptly notify Buyer if   Seller becomes aware that there may be any
Hazardous Substance on the Property, or in the soil, groundwater or soil vapor
on or under the Property, or that Seller or the Property may be subject to any
threatened or pending investigation by any governmental agency under any law,
regulation or ordinance pertaining to any Hazardous Substance.

     15.3 Mutual Indemnifications.
          ----------------------- 

          (a) Subject to Section 15.4  below, if there are any Third Party
                         -------------                                    
Claims (defined below) against Buyer which arise out of any Hazardous Substances
which became 

                                       44
<PAGE>
 
located in, on or under the Property during the period of time of Seller's
ownership of the Property, Seller shall indemnify, defend (by counsel reasonably
acceptable to Buyer) protect and hold Buyer harmless for, from and against any
and all claims, liabilities, penalties, forfeitures, losses or expenses
(including attorneys' fees) arising therefrom.

          (b) If there are any Third Party Claims (defined below) against Seller
which arise out of any Hazardous Substances which became located in, on or under
the Property during the period of time of  Buyer's ownership of the Property,
Buyer shall indemnify, defend (by counsel reasonably acceptable to Seller)
protect and hold Seller harmless for, from and against any and all claims,
liabilities, penalties, forfeitures, losses or expenses (including attorneys'
fees) arising therefrom.

          (c) As used in this Section 15.3, "Third Party Claims" are defined as
                              ------------                                     
any claims or rights of recovery by any person or entity (including governmental
agencies):

               (i)  which result from injury, damage or loss to or of any person
or property; or

              (ii)  for cost recovery, removal or remedial action.

     Third Party Claims shall also include any costs paid or payable by either
party for damage, loss, injury, investigation, removal, remediation or other
liability in response to any third party claim or in anticipation of any
enforcement or remedial action undertaken or threatened by any government agency
or private party.

     15.4 Environmental Release.  Nothing in Section 15.3 above is meant to
          ---------------------              ------------                  
diminish any party's rights or obligations under any federal, state or local law
pertaining to or concerning Hazardous Substances; but Seller shall not be liable
to Buyer under and Buyer hereby releases Seller from any and all liability under
any such law, for any Third Party Claims or any other claims (including claims
by Buyer) which are attributable to any environmental condition which was
described or referred to in the  Environmental Report(s) or in any Environmental
Audit obtained by Buyer prior to Closing.

     15.5 Environmental Audit.  If during the Due Diligence Period Buyer elects
          -------------------                                                  
to perform an Environmental Audit:

          (a) The Environmental Audit shall be conducted pursuant to standard
quality control/quality assurance procedures and in accordance with Section 5.
                                                                    ---------  
Buyer shall give Seller at least three (3) business days prior notice of any on-
site testing of soil or subsurface conditions.

                                       45
<PAGE>
 
          (b) If any report is prepared as the result of the Environmental
Audit, Buyer shall promptly give Seller a copy of the report.  Prior to the
Closing, Buyer shall keep the report and the information contained therein
confidential and shall not disclose it to any person or entity (other than a
governmental authority to the extent required by law) without Seller's prior
written consent; provided, however, that Buyer may furnish a copy of said report
to any proposed lender in connection with prosecution of an application for a
mortgage loan and to any person or entity contemplating an investment in the
Property as a partner or permitted assignee of Buyer, or to any consultant
engaged  to comment upon the results of, said report and make any disclosures
required by law or advised by counsel to be in accordance with law.  If Buyer
elects during the Due Diligence Period not to acquire the Property or if the
Closing fails to occur for any reason whatsoever, Buyer shall not disclose to
any party the contents of the Environmental Audit or report except pursuant to
valid legal process or with the prior written consent of Seller.

          (c) Any ground water, soil or other samples taken from the Property
shall be properly disposed of by Buyer at Buyer's sole cost and in accordance
with all applicable laws.

     15.6 Survival.  The provisions of Section 15 shall survive the Closing.
          --------                     ----------                           

SECTION 16.  INDEMNIFICATIONS.

     16.1 Indemnification by Buyer.   Buyer agrees to indemnify, defend and hold
          ------------------------                                              
Seller and its officers, agents, attorneys, employees, shareholders, directors,
parents, subsidiaries and affiliates harmless for, from and against any and all
claims, demands, liabilities, costs, expenses (including, but not limited to,
reasonable attorneys' and paralegals' fees and expenses through all
administrative, trial, appellate and bankruptcy proceedings or otherwise),
damages, losses, cause or causes of action and suit or suits of any nature
whatsoever arising out of or related to: (i) any claims based on the actions of
Buyer prior to the Closing Date in connection with Buyer's inspection of the
Property; (ii) the ownership and/or operation of the Property after the Closing
Date; (iii) the failure to comply with the terms of any Operational Contracts,
Liquor Licenses, License Agreements or other license or permits related to the
operation of the Property from and after the Closing Date; (iv) the failure to
comply with the landlord's obligations under any of the Leases after the Closing
Date; (v) Buyer's failure to pay any sales tax liability incurred in connection
with the operation of the Property from and after the Closing Date; (vi) any
misrepresentation or breach of representation or any other provision, warranty
or covenant in this Agreement by Buyer or any document delivered to Seller
pursuant to this Agreement; (vii) any claims asserted by any Hotel Employee of
Buyer, or its hotel manager(s), arising out of, or in any way connected with,
Buyer's or its hotel manager(s') operation of the Hotel after Closing,

                                       46
<PAGE>
 
or any termination of employment (or modification to the terms of employment) of
any Hotel Employee by Buyer , (viii) any charges of unfair labor practices in
connection with Buyer's failure to honor any legal obligations to Buyer's Hotel
Employees, after Closing whether based on tort, contract or federal, state or
local law, statute or regulations, (ix) any claims by hotel guests with respect
to contents of safe deposit boxes and/or luggage checked at the Hotel as
provided in Sections 22 and 23 hereof; (x) the applicability of the WARN Act to
            ------------------                                                
the transaction contemplated by this Agreement and/or any violation of the WARN
Act as a result of the transaction contemplated by this Agreement; and/or (xi)
the termination of the Marriott Franchise Agreement, the Radisson (Atlanta)
License Agreement and/or the Radisson (Orlando) License Agreement and/or (xii)
any other matter for which Buyer has indemnified Seller under this Agreement.
Provided, however, the indemnity set forth in this Section 16.1 shall not in any
                                                   ------------                 
way release Seller from any liability to Buyer resulting from any fraudulent
acts or intentional misrepresentations made by Seller in the procurement of this
Agreement.
 
     16.2  Indemnification by Seller.  Subject to Buyer's purchase of the
           -------------------------                                     
Property "as is, where is" in its present state and condition, and with all
faults as more particularly set forth above in this Agreement, Seller shall
indemnify, defend,  and hold Buyer, and its officers, agents, attorneys,
employees, shareholders, directors, parents, subsidiaries and affiliates
harmless for, from and against any and all claims, demands, liabilities, costs,
expenses (including but not limited to reasonable attorneys' and paralegals'
fees and expenses through all administrative, trial, appellate and bankruptcy
proceedings or otherwise), damages, losses, cause or causes of action and suit
or suits of any nature whatsoever arising out of or related to: (i) the
ownership and operation of the Property prior to Closing; (ii) liabilities or
obligations of Seller under the Operational Contracts, Liquor Licenses, License
Agreements or other licenses or permits related to the operation of the Property
accruing or owing prior to Closing, provided, Seller shall in no way be
responsible to Buyer for acts or omissions of Buyer occurring after Closing
which create liability under the Operational Contracts; (iii) subject to the
limitation period as described in Section 11, any misrepresentation or breach of
                                  ----------                                    
any representation or any other provision, warranty or covenant as set forth in
this Agreement  or any other document delivered at Closing to Buyer pursuant to
this Agreement; (vi) the employees of Seller or Seller's Manager related to
their employment or related to the Property prior to Closing, including without
limitation, the payment of salaries, withholdings for state or federal income
taxes, state disability taxes, worker's compensation insurances, bonuses, sick
pay, vacation pay or fringe benefits  and/or claims, demands and/or liens of any
local, state and/or federal government and/or governmental agencies for such
taxes and withholdings; (v) any charges of unfair labor practices in connection
with Seller's failure to honor any legal obligations to its Property Employees,
prior to closing; (vi) any claims with respect to Seller's holding of or other
dealing with guest baggage or other property arising out of the acts or
omissions of such Seller prior to Closing; (vii) any claims arising out of

                                       47
<PAGE>
 
acts or omissions of such Seller prior to Closing with respect to items claimed
to have been in safe deposits prior to Closing; (viii) Seller's failure to pay
any sales tax liability incurred in connection with the operations of the
Property prior to the Closing Date; and/or (ix) any other matter for which
Seller has indemnified Buyer under this Agreement.  The indemnity set forth in
this Section 16.2 shall not in any way release Buyer from any liability to
     ------------
Seller resulting from any fraudulent acts or intentional misrepresentations made
by Buyer in the procurement of this Agreement. Notwithstanding any provision in
this Agreement to the contrary, Seller shall not be required to indemnify,
defend or hold Buyer harmless from and against any losses, costs or liabilities
whatsoever (i) arising out of or relating to the condition of the Property, all
improvements located thereon, including any construction or other physical
defects or any laws, ordinances or regulations relating thereto except as may
arise; and/or (ii) any matters which are the subject of Buyer's representations
or warranties in this Agreement; and/or (iii) relating to any conditions,
exceptions or items set forth in the Title Commitment and/or (iv) any item,
matter, occurrence or condition which was known or should have been known to the
actual knowledge of Buyer after undertaking reasonable due diligence prior to
the Closing Date.

     16.3 Survival.  The provisions of this Section 16 shall survive Closing or
          --------                          ----------                         
any earlier termination of this Agreement.

SECTION 17.  CONDEMNATION AND DESTRUCTION.

     17.1 Eminent Domain or Taking.  If proceedings under a power of eminent
          ------------------------                                          
domain relating to the Property or any part thereof are commenced prior to
Closing, Seller shall promptly inform Buyer in writing.

          (a) If such proceedings involve the taking of title to all or a
material interest in the Property, Buyer may elect to terminate this Agreement
by notice in writing sent within ten (10) business days of Seller's written
notice to Buyer (or later if the Due Diligence Period or the Extended Due
Diligence Period as the case may be, has, at the time of the notice, more than
ten (10) business days remaining), in which case the Deposit and any interest
accrued thereon, shall be returned to Buyer, and neither party shall have any
further obligation to or rights against the other except any rights or
obligations of either party which are expressly stated to survive termination of
this Agreement.

          (b) If the proceedings do so not involve the taking of title to all or
a material interest in the Property, or if Buyer does not elect to terminate
this Agreement, this transaction shall be consummated as described herein and
any award or settlement payable with respect to such proceeding shall be paid or
assigned to Buyer upon Closing.

          (c) If this sale is not consummated for any reason, any condemnation
award or settlement shall belong to Seller.

                                       48
<PAGE>
 
          (d) For purposes of this Section 17.1, a taking, on a per property
                                   ------------                             
basis, having a value in excess of One Million Dollars ($1,000,000) shall be
deemed material.

     17.2 Damage or Destruction.  Except as provided in this Section, prior to
          ---------------------                                               
the Closing the entire risk of loss of damage by earthquake, hurricane, flood,
landslide, fire or other casualty shall be borne and assumed by Seller.  If,
prior to the Closing, any part of the Property is damaged or destroyed by
earthquake, hurricane, flood, landslide, fire or other casualty, Seller shall
promptly inform Buyer of such fact in writing, including a description of the
property damage,  within ten (10) business days of the same and if the cost of
repairing such damage, per property, is estimated by an architect retained by
Seller to be:

          (a) equal to or less than One Million Dollars ($1,000,000) per
Property or if such architect estimates that repairs and restoration will
require  ninety (90) days or less, starting from the date of loss or damage, to
substantially complete, then Seller shall repair such damage and restore the
damaged property as promptly as possible to as good  or  better condition as
existed immediately prior to such casualty, and in such event Closing shall be
deferred until such repair and restoration is substantially completed (provided,
however, that Buyer may elect to proceed to perform such repairs after Closing
receive a credit against the Purchase Price in an amount equal to the estimated
remaining costs of such repairs); or

          (b) greater than One Million Dollars ($1,000,000) per Property or if
such architect estimates that repairs and restoration will require more than
ninety (90) days, starting from the date of loss or damage, to substantially
complete, then Buyer must elect (as its sole and exclusive remedy)  one of the
following, to (i) terminate this Agreement by giving notice to such effect to
Seller not later than the latest to occur of the last business day prior to
Closing or fifteen (15) business days after receipt of the Casualty Notice, in
which event the Deposit and any interest accrued thereon (or so much thereof as
shall have been delivered by Buyer as of such date) shall be returned to Buyer
and neither Seller nor Buyer shall have any further obligations or liabilities
one to the other hereunder or (ii) proceed with Closing as set forth herein
without repair of the casualty and receive a credit against the Purchase Price
in the amount of the deductible under Seller's property casualty insurance
coverage for the Property plus any amounts previously paid or to be paid to
Seller as insurance proceeds in connection with such casualty, or (iii) proceed
with Closing as set forth herein without repair of the casualty and receive a
credit against the Purchase Price in an amount equal to the reasonable cost of
repair of the casualty.

          (c) Whether or not the sale of the Property is consummated hereunder,
all rights to insurance claims or proceeds in respect of damages or destruction
to the Property occurring prior to Closing shall belong to Seller.

                                       49
<PAGE>
 
SECTION 18.  INSURANCE SUBSEQUENT TO THE CLOSING.

     All insurance policies carried by Seller with respect to the Property or
the operation thereof,  (including, without limitation, workers compensation
policies), may be canceled or modified to remove coverage for the Property by
Seller effective as of the Closing Date (except for any "tail" coverage retained
by Seller at Seller's expense), and it shall be Buyer's responsibility to
acquire such insurance in such amounts as Buyer shall determine it may require.

SECTION 19.  ADVANCE BOOKINGS.

     Buyer shall assume, recognize and honor, for its own account, the terms and
rates of all Hotel Bookings made before the Effective Date.  Hotel Bookings made
between the Effective Date and Closing which are arm's length transactions
entered into in accordance with Seller's standard operating procedures shall be
included within the Hotel Bookings assigned by Seller and assumed by Buyer
pursuant to the Assignment and Assumption of Hotel Bookings, except that any
such Hotel Bookings which are described in Section 11.14(h) shall not be so
                                           ----------------                
included unless Seller obtains Buyer's prior written consent to same before
entering into same.  Buyer shall not be obligated to honor any "trade out
agreements" for which Seller has received the benefit of prior to the Closing
Date and Seller shall be responsible for the payment of same.  Buyer recognizes
that Hotel Bookings may include discounts or other benefits, including, without
limitation, corporate, government or group discounts, weekend discounts or
requirements that Buyer provide ancillary food, beverage or other benefits to
the guests holding such reservations.  Buyer agrees that Seller cannot make and
has not made any representation or warranty that any party holding a Hotel
Booking will utilize or honor such Hotel Booking.  Buyer acknowledges the risk
of non-utilization and non-performance of Hotel Bookings, and acknowledges that
some holders of Hotel Bookings may cancel specifically because of the sale of
the Hotel.  All cancellation fees and forfeited deposits which accrue or are
retainable after the Closing Date shall belong to Buyer.
 
     The provisions of this Section 19 shall survive the Closing.
                            ----------

SECTION 20.  LICENSE,  FRANCHISE AND MANAGEMENT AGREEMENTS.
 
     20.1  General Acknowledgments.  Buyer acknowledges and agrees that: (i) the
           -----------------------                                              
Marriott Franchise Agreement is between Marriott and 1700/1750 West Loop S.
Limited Partnership,  that the Radisson License Agreement (Atlanta) is between
Radisson Licensor

                                       50
<PAGE>
 
and Zenith Properties (Atlanta), Inc., and that the Radisson License Agreement
(Orlando) is between Radisson Licensor and Zenith Properties (Orlando) Limited
Partnership (the above franchise and license agreements are hereinafter referred
to collectively as the "License Agreements"); (ii) Buyer has received copies of
the License Agreements and is familiar with their contents, particularly the
provisions therein relating to Seller's assignment of the License Agreements to
Buyer and the procedures relating to such assignment; (iii) Seller has no right
or power to assign the License Agreements to Buyer absent consent of the
respective Licensor or Franchisor, and (iv) Closing is not contingent upon Buyer
obtaining an assignment of the License Agreements (or otherwise entering into a
contractual arrangement with Marriott or Radisson Licensor to operate the
Property as either a Marriott or Radisson franchise. Buyer shall keep Seller
informed of its progress in securing a written agreement with Marriott and/or
Radisson Licensor. In the event Buyer has not entered into a written agreement
with the appropriate party prior to the Closing Date, authorizing the operation
of the Property under the Marriott or Radisson franchise as the case may be,
Buyer shall, for a period of thirty (30) days after the Closing, permit Seller
and the Hotel Manager and their respective employees, agents and contractors
access to the Property for the purpose of removing the Licensor's trademarks,
trade names, insignia and other items which are required to be removed upon
termination of the License Agreements and to take such other actions as may be
required by the terms of the License Agreements (including removal of any items
of Tangible Personal Property or Inventories which contain or are embossed with
any of the Marriott or Radisson trademarks, tradenames or other identifying
insignia that are not inconsistent with this Agreements and Buyer's rights
hereunder). If the License Agreements are terminated at Closing, Seller shall
pay all fees and charges which are due or have accrued under the License
Agreements upon such termination (but specifically not any fees, charges or
damages due as a result of such termination), and Buyer shall not be responsible
for same. Buyer shall pay when due, any and all fees, charges or damages arising
from the termination of the License Agreements and shall indemnify and hold
Seller harmless from the same. Buyer further acknowledges and Seller agrees that
(i) Seller shall advise Manager of the pending sale of the Property to Buyer,
(ii) the Hotel and Office Management Agreements shall be terminated effective on
and as of the Closing Date, and (iii) if Manager wishes, it may communicate
directly with Buyer to ascertain Buyer's interest in operating the Property
under the Management Agreement.
 
          20.2  Marriott Franchise Agreement.  Buyer has indicated a desire to
                ----------------------------                                  
Seller to continue to operate the Houston Real Property as a Marriott Hotel and
Buyer intends to seek an assignment of the Marriott Franchise Agreement from
Seller.  Pursuant to the Marriott Franchise Agreement, Seller agrees to notify
Marriott of the terms of this proposed transaction and further agrees to provide
Marriott with such information as may be reasonably requested by Buyer to assist
Buyer in obtaining Marriott's consent to the assignment of the Franchise
Agreement.  In the event Marriott does not consent to the

                                       51
<PAGE>
 
assignment of the Franchise Agreement, Buyer will take no action after Closing
to prevent Seller from complying with its obligations under the Franchise
Agreement with respect to the termination thereof.

     20.3  Radisson (Atlanta) and Radisson (Orlando).  Buyer acknowledges that
           -----------------------------------------                          
it has requested Seller to terminate the Radisson (Atlanta) and Radisson
(Orlando) License Agreements (the "Radisson Agreements"), and Seller agrees to
take appropriate steps to terminate the Radisson Agreements effective as of the
Closing.  Buyer agrees that it will take no action after Closing to prevent
Seller from complying with its obligations under the Radisson License Agreements
with respect to the termination thereof.

     20.4 Survival.  The provisions of this Section 20 shall survive Closing.
          --------                          ----------                       

SECTION 21.  HOTEL PERSONNEL.

     Buyer acknowledges that all Hotel Employees are employed by the Manager or
an affiliate thereof, and that Seller shall terminate the Management Agreement
at Closing. Seller covenants and agrees to cause the Manager to terminate all
Property Employees effective as of 11:59 p.m. on the day before the Closing Date
(it being understood that if for any reason the Closing does not occur, such
termination shall be deemed to be rescinded ab initio). Buyer shall cause all of
                                            -- -------                          
those Property Employees it desires to hire to be immediately rehired effective
as of 12:01 a.m. on the Closing Date (it being understood that if for any reason
the Closing does not occur, such rehiring shall be rescinded ab initio), upon
                                                             ---------       
such terms as Buyer (or such other person or entity who may be responsible for
the rehiring) may elect, provided that the failure to hire less than all the
Property Employees and the hiring of Property Employees on different terms does
not result in a violation of or cause the applicability of the Worker Adjustment
and Retraining Notification Act, 29 U.S.C. (S) 2101, et seq. (the "WARN Act")
                                                     -- ---                  
and Buyer (or such other responsible party) shall be responsible for all
employee obligations of the rehired Property Employees accruing from and after
such rehiring. Seller further covenants and agrees that Seller shall (i) cause
the Manager to pay, within thirty (30) days after the Closing Date, all sums, if
any, accrued by Property Employees under the Benefit Plan as of the Cut-Off
Time whether or not earned, (ii) reimburse the Manager for same to the extent
required by the Management Agreement, (iii) indemnify and hold Buyer harmless
from all amounts owed to Property Employees, including amounts owed on account
of accrued and unpaid benefits, up to the Cut Off time on the Closing Date; (iv)
enter into no employment or union contract between the date hereof and Closing
that will be binding on Buyer on or after Closing, (v) Seller shall pay all
wages owed to Property Employees through the Cut-Off Time on the Closing Date
including accrued vacation and sick leave (whether or not earned).
Notwithstanding the foregoing, at Buyer's request, and upon Buyer's express
representation and covenant that Buyer will rehire

                                       52
<PAGE>
 
immediately a sufficient number of Hotel Employees on terms sufficient to render
the WARN Act inapplicable, Seller has refrained from giving any WARN Act
notices. In the event it is determined that the WARN Act is applicable, and
Seller or Manager incurs any loss or liability as a result thereof, such loss or
liability shall be Buyer's responsibility and Buyer agrees to promptly
indemnify, hold harmless and/or reimburse Seller or manager for such loss or
liability. With respect to the Hotel Employees rehired by Buyer, Buyer shall be
solely responsible to advise such Hotel Employees of Buyer's new employment
policies, if any, and of any new terms and conditions of employee's salaries and
benefit plans. Buyer shall be solely responsible for all obligations to rehired
Hotel Employees arising after Closing and Buyer and Seller shall indemnify and
hold the other harmless from and against any loss, cost, expense (including
reasonable attorney fees and disbursements actually incurred) damage or
liability any such party may suffer by reason of the other's default under this
section.

     The provisions of this Section 21 shall survive Closing.
                            ----------                       

SECTION 22.  SAFE DEPOSIT BOXES.

     Seller and Buyer shall, before noon Eastern  time on the day prior to
Closing, give a written notice to all Hotel guests at the Property who have
deposited items in such vaults or safety deposit boxes, stating (i) that each
such guest is requested to present himself or herself at the front Hotel desk of
the Property at any time from noon Eastern time on the day preceding the
Closing to noon Eastern time on the day of the Closing, at which time a
representative of Seller and a representative of Buyer (collectively, the
"Representatives") shall be present at the front desk; (ii) that the
Representatives shall, in each such guest's presence, open and inventory all
items belonging to each such guest in the vault or safety deposit box in
question, and (iii) that upon the taking of the inventory described in clause
(ii) above, each such guest shall be required to sign a new vault or safe
deposit box agreement with Buyer, and (iv) that if any guest fails to present
himself or herself at the front desk as requested, then the Representatives
shall, without opening the applicable safety deposit box or vault, cause the
safety deposit box or vault in question to be sealed, in which case the
Representatives shall sign a statement indicating that the safety deposit box or
vault in question has been sealed without having been opened.  If the applicable
guest subsequently requests delivery of the contents of such safety deposit box
or vault, Buyer shall afford Seller a reasonable opportunity to have a
representative available at such opening.  Provided Seller and Buyer comply with
the foregoing procedure, Seller or Seller's agent shall be responsible for all
items placed in safety deposit boxes and vaults at the Property on or prior to
Closing and Buyer shall be responsible for all items placed in safety deposit
boxes and vaults at the Property after Closing.

                                       53
<PAGE>
 
     The provisions of this Section 22 shall survive Closing.
                            ----------                       

SECTION 23.  BAGGAGE INVENTORY.

     All baggage of Hotel guests who are  in the Property on the date of the
Closing which has been checked with or left in the care of Seller shall on the
date of the Closing be tagged jointly by Seller and Buyer.  Seller shall
indemnify, defend and hold harmless Buyer against any claims, losses or
liabilities incurred by Buyer with respect to such baggage arising out of the
acts of omissions of Seller.  Buyer shall indemnify, defend and hold harmless
Seller against any claims, losses or liabilities incurred by Seller with respect
to such baggage arising out of the acts or omissions of Buyer.

     The provisions of this Section 23 shall survive the Closing.
                            ----------                           

SECTION 24.  DEFAULT; REMEDIES.

     24.1 Default by Seller.  IN THE EVENT THE CLOSING AND THE CONSUMMATION OF
          -----------------                                                   
THE TRANSACTION CONTEMPLATED BY THIS AGREEMENT DO SO NOT OCCUR BY REASON OF
MATERIAL DEFAULT BY SELLER, BUYER AS ITS  SOLE AND EXCLUSIVE REMEDY HEREUNDER,
SHALL BE ENTITLED TO ELECT EITHER (I) TO OBTAIN THE RETURN OF THE DEPOSIT (AND
IF APPLICABLE, THE NON-REFUNDABLE DEPOSIT) AND ANY INTEREST ACCRUED THEREON AND
PAYMENT OF ITS REASONABLE OUT-OF-POCKET EXPENSES PAID TO NON-AFFILIATED THIRD
PARTIES IN CONNECTION WITH THE TRANSACTION, OR (II) HEREBY WAIVING ALL OTHER
ACTIONS, RIGHTS OR CLAIMS FOR DAMAGES, BRING AN EQUITABLE ACTION TO SEEK
SPECIFIC PERFORMANCE OF THIS AGREEMENT ACCORDING TO ITS TERMS.

     Buyer's Initials: __________  Seller's Initials: __________

     24.2 Default by Buyer.  IN THE EVENT THE CLOSING AND THE CONSUMMATION OF
          ----------------                                                   
THE TRANSACTION HEREIN CONTEMPLATED DO  NOT OCCUR AS HEREIN PROVIDED BY REASON
OF ANY MATERIAL DEFAULT OF BUYER, BUYER AND SELLER AGREE THAT IT WOULD BE
IMPRACTICAL AND EXTREMELY DIFFICULT TO ESTIMATE THE DAMAGES SUFFERED BY SELLER
AS A RESULT OF BUYER'S FAILURE TO COMPLETE THE PURCHASE OF THE PROPERTY PURSUANT
TO THIS AGREEMENT, AND THAT UNDER THE CIRCUMSTANCES EXISTING AS OF THE DATE OF
THIS AGREEMENT, THE LIQUIDATED DAMAGES PROVIDED FOR IN THIS SECTION REPRESENT A
REASONABLE ESTIMATE OF THE DAMAGES WHICH SELLER WILL INCUR AS

                                       54
<PAGE>
 
A RESULT OF SUCH FAILURE; THEREFORE, BUYER AND SELLER DO HEREBY AGREE THAT A
REASONABLE ESTIMATE OF THE TOTAL NET DETRIMENT THAT SELLER WOULD SUFFER IN THE
EVENT THAT BUYER DEFAULTS AND FAILS TO COMPLETE THE PURCHASE OF THE PROPERTY IS
AN AMOUNT EQUAL TO THE DEPOSIT AND, IF APPLICABLE, SAID AMOUNT SHALL ALSO
INCLUDE THE AMOUNT OF THE NON-REFUNDABLE DEPOSIT AS WELL (BOTH OF WHICH INCLUDE
ANY ACCRUED INTEREST THEREON); SAID AMOUNT SHALL BE THE FULL, AGREED AND
LIQUIDATED DAMAGES FOR THE BREACH OF THIS AGREEMENT BY BUYER AND SHALL BE
SELLER'S EXCLUSIVE REMEDY FOR BUYER'S BREACH OF THIS AGREEMENT (EXCEPT FOR
BUYER'S INDEMNITY OBLIGATIONS UNDER SECTION 5, WHICH MAY ALSO BE ENFORCED BY
                                    ---------  
SELLER). THE PAYMENT OF SUCH AMOUNT AS LIQUIDATED DAMAGES IS NOT INTENDED AS A
FORFEITURE OR PENALTY.

     Buyer's Initials: __________  Seller's Initials: __________

SECTION 25.  ARBITRATION OF DISPUTES.

     Any controversy or claim arising out of or relating to this agreement or
any agreements or instruments relating hereto or delivered in connection
herewith, including, but not limited to, a claim based on or arising from an
alleged tort shall, at the request of either buyer or seller, be determined by
arbitration in accordance with the Federal Arbitration Act (9 U.S.C. Section 1
et seq.) under the auspices and rules of the American Arbitration Association
("AAA").  The AAA shall be instructed by either or both parties to prepare a
list of three (3) arbitrators who shall be disinterested and shall have
experience in commercial real estate and in the area of the particular issue(s)
connected with the dispute.  Within 10 days of receipt of the list, each party
may strike 1 name from the list. The AAA shall then appoint the arbitrator from
the name(s) remaining on the list.  The arbitration shall be conducted in
Atlanta, Georgia.  Any controversy in interpretation or enforcement of this
provision or whether a dispute is arbitrable, shall be determined by the
arbitrator.  Judgment upon the award rendered by the arbitrator may be entered
in any court having jurisdiction. The institution and maintenance of an action
for judicial relief or in pursuit of an ancillary remedy does not constitute a
waiver of the right of any party, including the plaintiff, to submit the
controversy or claim to arbitration.

     Notice:  By initialing in the space below you are agreeing to have any
dispute arising out of the matters included in the 'Arbitration of Disputes'
provision decided by neutral arbitration as provided by South Carolina law and
you are giving up any rights you might possess to have the dispute litigated in
a Court of by jury trial.  By initialing in the space below you are giving up
your judicial rights to discovery and appeal unless such rights are

                                       55
<PAGE>
 
specifically included in the 'Arbitration of Disputes' provision. If you refuse
to submit to arbitration after agreeing to this provision, you may be compelled
to arbitrate under the authority of South Carolina law. Your agreement to this
arbitration provision is voluntary.

     Notwithstanding the foregoing, Seller and Buyer agree that the following
controversies shall be excluded from the arbitration requirements of this
section: (i) each and every controversy asserted in any action brought by a
third party and in which Seller or Buyer are named or joined defendants
(including counterclaims and third party defendants); (ii) Each and every
controversy brought by Buyer or Seller against a third party; (iii) Each and
every controversy not related to the Agreement, Closing or Property; and/or (iv)
Any action for specific performance and/or injunctive relief brought by Buyer.

     WE HAVE READ AND UNDERSTAND THE FOREGOING AND AGREE TO SUBMIT DISPUTES
ARISING OUT OF THE MATTERS INCLUDED IN THE ARBITRATION OF DISPUTES' PROVISION TO
NEUTRAL ARBITRATION.


     Buyer's Initials__________  Seller's Initials__________


SECTION 26.  ASSIGNMENT.

     Except to an Affiliate (as defined in Rule 12b-2 of the General Rules and
Regulations under the Securities and Exchange Act of 1934, as amended), and
specifically including, but not limited to a joint venture between Buyer and a
third party in which such third party holds less than a fifty percent (50%)
interest and Buyer remains as the controlling party of the joint venture) Buyer
shall not assign this Agreement without obtaining Seller's prior written
consent, which consent may be withheld by Seller in its sole and absolute
discretion for any reason whatsoever.  Any attempted assignment without Seller's
prior written consent shall, at Seller's option, be voidable and constitute a
material breach of this Agreement.  No assignment, including to an Affiliate,
shall be effective against Seller until Buyer delivers to Seller a fully
executed copy of the assignment instrument, which instrument must be
satisfactory to Seller in both form and substance and pursuant to which the
assignee assumes and agrees to perform for the benefit of Seller the obligations
of Buyer under this Agreement, and pursuant to which the assignee makes the
warranties,  representations, and covenants required of Buyer under this
Agreement.  Any  assignment, including to an Affiliate, shall not release Buyer
from any of its obligations under this Agreement and shall demonstrate to the
satisfaction of Seller the assignee's financial ability to consummate the
transaction contemplated by this Agreement.  Subject to the provisions of this
Section 26, Buyer may assign to an Affiliate the right to take title to one or
- ----------                                                                    
more Properties, and to the extent that

                                       56
<PAGE>
 
an Affiliate takes title to a particular Property, Seller agrees that Seller's
representations, warranties, covenants, indemnities and other obligations under
this Agreement with respect to such Property shall extend to and inure to the
benefit of and be enforceable by such Affiliate

 SECTION 27.  NOTICES.

     All notices or other communications required or permitted hereunder must be
in writing, and must be personally delivered (including by means of professional
messenger service) or sent by overnight courier, or sent by registered or
certified mail, postage prepaid, return receipt requested  and by facsimile to
the addresses set forth below.  All notices sent by mail shall be deemed
received two (2) days after the date of mailing, all notices sent by facsimile
shall be deemed sent on the day received if received during business hours on a
business day, or on the next business day if not received during business hours
on a business day, and all notices sent by other means permitted herein shall be
deemed received on the date delivered (or receipt of delivery is refused).  The
address for notices are as follows:

   Seller:          1700/1750 West Loop S. Limited Partnership
                    Zenith Properties (Atlanta), Inc.
                    Zenith Properties (Orlando), Limited Partnership
                    1000 Zenith Parkway
                    Fort Mill, South Carolina  29715
                    Attn:  Mr. George Tang
                    Telephone No.  (803) 547-8118
                    Telecopier No. (803) 548-7002

   with a copy to:  M. Joseph Allman, Esq.
                    Allman Spry Leggett & Crumpler, P.A.
                    380 Knollwood Street, Suite 700
                    Winston Salem, North Carolina  27103
                    Telephone No.  (910) 722-2300
                    Telecopier No. (910) 722-8720

   Buyer:           American General Hospitality Operating Partnership, L.P.
                    American General Hospitality Corporation
                    3860 West Northwest Highway
                    Dallas, Texas 75220
                    Attn:  Steven J. Jorns, President

                                       57
<PAGE>
 
   With copy to:    Douglas A. Raelson, Esquire
                    Battle Fowler L.L.P.
                    Park Avenue Tower
                    75 East 55th Street
                    New York, New York 10022
                    Telephone No. (212) 856-7000
                    Telecopier No. (212) 339-9156

   Escrow Agent:    Commonwealth Land Title Company of Dallas
                    1700 Pacific Avenue, Suite 4740
                    Dallas, Texas 75201
                    Attn: Beverly Griesse
                    Telephone No. (212) 855-8403

SECTION 28.  BROKERS.

     Subject to the completion of the transaction contemplated herein and the
consummation of the Closing,  Buyer shall be responsible for the payment of  any
fees or real estate commissions due Mr. Greg Rice or Solid Rock Advisors, Inc..
Seller shall be responsible for the payment of advisory fees due to Mr. Yet King
Loy of Goddard & Smith International Realty, Inc.  Seller represents and
warrants to Buyer, and Buyer represents and warrants to Seller, that no broker
or finder has been engaged by them, respectively, other than the Brokers whose
names appear in Section 1, in connection with any of the transaction
                ---------                                           
contemplated by this Agreement, or to its knowledge, is in any way connected
with any of such transactions.  Buyer shall indemnify, save harmless and defend
Seller from any liability, cost, or expense arising out of or connected with any
claim for any commission or compensation made by any person or entity claiming
to have been retained or contacted by Buyer in connection with this transaction,
other than the Brokers.  Seller shall indemnify, save harmless and defend Buyer
from any liability, cost, or expense arising out of or connected with any claim
for any commission or compensation made by any person or entity claiming to have
been retained or contacted by Seller in connection with this transaction, other
than the Brokers.  The provisions of Section 28 shall survive the Closing or
                                      ----------                             
any earlier termination of this Agreement.

SECTION 29. ESCROW AGENT.

     29.1 General.  Escrow Agent has agreed to act as escrow agent for the
          -------                                                         
convenience of the parties without fee or other charges for such services as
Escrow Agent.  Escrow Agent shall not be liable: (i) to any of the parties for
any act or omission to act except for its own gross negligence or willful
misconduct; (ii) for any legal effect, insufficiency, or undesirability of any
instrument deposited with or delivered by Escrow Agent or exchanged

                                       58
<PAGE>
 
by the parties hereunder, whether or not Escrow Agent prepared such instrument;
(iii) for any loss or impairment of funds that have been deposited in escrow
while those funds are in the course of collection, or while those funds are on
deposit in a financial institution, if such loss or impairment results from the
failure, insolvency or suspension of a financial institution; (iv) for the
expiration of any time limit or other consequence of delay, unless a properly
executed written instruction has been delivered to Escrow Agent instructing
Escrow Agent to comply with such time limit; or (v) for any default, error,
action or omission of either Seller or Buyer. Escrow Agent shall be entitled to
rely, in good faith, on any document or paper received by it from Buyer or
Seller, or their respective legal counsel, believed by Escrow Agent, in good
faith, to be bona fide and genuine.

     29.2 Written Demand.  Should either Buyer or Seller determine that it is
          --------------                                                     
entitled to payment of the Deposit as a result of the other's default under the
terms of the Agreement, said party shall file a written demand for payment of
the Deposit with Escrow Agent setting forth the basis for such demand.  Upon the
filing of a written demand for payment of the Deposit by Buyer or Seller
pursuant to the provisions hereof, 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
Escrow Agent, such that it is  received by Escrow Agent at any time within ten
(10) days after the mailing of the copy of the written demand 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 of objection, Escrow Agent shall
promptly mail a copy thereof to the party who filed the written demand for the
Deposit.  Provided, however,  this Section 29.2 shall not apply to the return of
                                   ------------                                 
Buyer's Deposit pursuant to Section 4.4 hereof, or to the release of the Non-
                                        -------------------------------------
Refundable Deposit to Seller.
- ----------------------------

     29.3 Disposition of Deposit.  In the event Escrow Agent shall receive a
          ----------------------                                            
notice of objection provided for above within the time therein prescribed,
Escrow Agent shall continue to hold the Deposit until:

          (a) Escrow Agent receives written notice from both the Seller and
Buyer directing the disbursement of the Deposit, in which case Escrow Agent
shall then disburse the Deposit in accordance with the notice from both Seller
and Buyer; or

          (b) In the event of litigation between Seller and Buyer, Escrow Agent
shall deliver the Deposit to the Clerk of Court in which the litigation is
pending;

          (c) Escrow Agent takes such affirmative steps as Escrow Agent may, in
Escrow Agent's reasonable opinion, elect in order to terminate Escrow Agent's
duty, including, but not limited to,  delivering the Deposit to a court of
competent jurisdiction and

                                       59
<PAGE>
 
an instituting an action for interpleader, the costs thereof to be borne by
whichever of Seller or Buyer is the losing party therein; or

          (d) An order of a court of competent jurisdiction is received by
Escrow Agent directing the delivery of the Deposit.

     29.4 Fees.  In the event of any dispute as to the disbursement of monies
          ----                                                               
held by Escrow Agent in escrow, including any interpleader action which may be
filed by Escrow Agent pursuant to this Agreement, Seller and Buyer agree that
they shall be jointly and severally liable for the reasonable fees and expenses
(including attorneys' fees) incurred by Escrow Agent in connection therewith
unless the dispute shall have been finally resolved by the court, in which case
Escrow Agent's reasonable expenses (including attorneys' fees) shall be borne by
the losing party.  Escrow Agent shall not be liable for Escrow Agent's
compliance with any legal process, subpoena, writs, orders, judgments and
decrees of any court, whether issued with or without jurisdiction, and whether
or not subsequently vacated, modified, set aside or reversed.

SECTION 30.  MISCELLANEOUS.
 
     30.1 Counterparts.  This Agreement may be executed in counterparts, each of
          ------------                                                          
which shall be considered an original, but all of which shall constitute one and
the same document. Delivery of an executed counterpart by either party to this
Agreement may be made to the other party by facsimile, and such facsimile shall
have the same force and effect as an original.  Any party so delivering this
Agreement by facsimile shall promptly deliver to the other party by overnight
courier the executed original counterpart of this Agreement.

     30.2 Partial Invalidity.  If any term or provision of this Agreement shall
          ------------------                                                   
be deemed to be invalid or unenforceable to any extent, the remainder of this
Agreement shall not be affected thereby, and each remaining term and provision
of this Agreement shall be valid and be enforced to the fullest extent permitted
by law.

     30.3 Possession of the Property.  Seller shall deliver possession of the
          --------------------------                                         
Property to Buyer upon Closing, subject to the right of any tenants under the
Leases and Hotel guests.

     30.4 Waivers.  No waiver of any breach of any covenant or provision
          -------                                                       
contained herein shall be deemed a waiver of any preceding or succeeding breach
thereof, or of any other covenant or provision contained herein.  No extension
of time for performance of any obligation or act shall be deemed an extension of
the time for performance of any other obligation or act except those of the
waiving party, which shall be extended by a period of time equal to the period
of the delay.

                                       60
<PAGE>
 
     30.5 Successors and Assigns.   Subject to the provisions of Section 26
          ----------------------                                 ----------
hereof, this Agreement is binding upon and inures to the benefit of the
- ------                                                                 
permitted successors and assigns of the parties hereto.

     30.6 Professional Fees.  In the event of the bringing of any action,
          -----------------                                              
arbitration or suit by a party hereto against another party hereunder by reason
of any breach of any of the covenants, agreements or provisions on the part of
the other party arising out of this Agreement, then in that event the prevailing
party shall be entitled to recovery from the other party all costs and expenses
of the action, arbitration or suit, and actual attorneys' fees.

     30.7 Entire Agreement.  This Agreement (including all Exhibits attached
          ----------------                                                  
hereto) constitutes the entire contract between the parties hereto with respect
to the subject matter hereof and may not be modified except by an instrument in
writing signed by both parties hereto.

     30.8 Time of the Essence.  Seller and Buyer hereby acknowledge and agree
          -------------------                                                
that time is strictly of the essence with respect to each and every term,
condition, obligation and provision hereof.

     30.9 Construction.  This Agreement has been prepared by Seller and its
          ------------                                                     
professional advisors and reviewed and modified by  Buyer and its professional
advisers. Seller and Buyer and their respective advisors believe that this
Agreement is the product of all of their efforts, that it expresses their
agreement and that it should not be interpreted in favor of or against either
Buyer or Seller.  The parties further agree that this Agreement shall be
construed to effectuate the normal and reasonable expectations of a
sophisticated Seller and Buyer.  To the extent that the terms and provisions of
this Agreement are in conflict with or are inconsistent with the terms and
provisions of the Assignment and Assumption of Leases and Security Deposits,
Assignment and Assumption of Operational Contracts, Assignment and Assumption of
Intangible Personal Property, the terms and provisions of this Agreement shall
control, notwithstanding that the previously enumerated closing documents were
executed and delivered after the Effective Date of this Agreement.

     30.10 Governing Law.  The parties hereto expressly agree that this
           -------------                                               
Agreement shall be governed by, interpreted under, and construed and enforced in
accordance with the laws of the State of South Carolina, without application of
conflict of law principles.

     30.11 Confidentiality.
           --------------- 

     (a)   Press Releases.  Neither Seller nor any Affiliate thereof (as used in
           --------------                                                       
this Agreement "Affiliate" shall have the meaning ascribed to it in Rule 12b-2
of the General

                                       61
<PAGE>
 
Rules and Regulations under the Securities and Exchange Act of 1934, as amended,
and, when used in connection with Seller or Buyer shall include each officer,
director, and partners thereof) shall issue any press release nor otherwise make
public any information with respect to this Agreement or the transactions
contemplated hereby prior to the Closing Date, without the prior written consent
of Buyer. If required as part of its responsibilities as a public company, Buyer
or its Affiliates may issue press releases, and Buyer or its Affiliates may
refer to this Agreement and the transactions contemplated hereby in any filing
pursuant to securities laws or stock exchange listing obligations or as required
by law or advised by counsel to be in accordance with law, provided that, with
respect to any press release, (i) Buyer has provided Seller with an opportunity
to review and comment upon such release, although any changes to such release
suggested by Seller shall be made in the sole discretion of Buyer or its
Affiliates, and (ii) no such press release shall be issued prior to the
expiration of the Due Diligence Period or Extended Due Diligence Period, as the
case may be. Until such time as a press release has been issued by Buyer,
neither Seller nor Buyer shall discuss or disclose the existence of this
transaction, the terms of this Agreement or the identity of the parties hereto
with any person or entity, except for those employees, prospective lenders,
advisors, attorneys, consultants and other professionals required to implement
the terms of this Agreement, including financing, or to assist in Buyer's due
diligence and who have agreed to maintain the confidentiality of the transaction
and the information they receive. Notwithstanding the preceding sentence, Seller
is authorized to make such disclosure of this transaction and provide such
pertinent information to Marriott and Radisson Licensor as required by the terms
of their respective License Agreements.

     (b) Confidentiality.  Except to the extent otherwise provided herein,
         ---------------                                                  
required by law or advised by counsel to be in accordance with law, or
contemplated by Section 30.11(a), until the consummation of the transactions
                ----------------                                            
contemplated by this Agreement, the parties hereto shall hold, and shall cause
each of their respective Affiliates to hold, all information and documents
obtained in connection with the transactions contemplated hereby confidential
including, any oral and written information concerning the Seller and the Hotel
received from the Seller or from a third party at the direction of the Seller
(collectively the "Due Diligence Material").  The Due Diligence Material shall
not be disclosed, discussed or made known without the prior written consent of
the Seller, except to the employees or board of directors of the Buyer, the OP,
the REIT, or any of their affiliates, to Buyer's prospective lenders and their
counsel, to any hotel franchisors, any marketing company employed to do
feasibility studies, or any investment banking, accounting, legal or other
professional advisors, or to any environmental or engineering consultants with
whom Buyer desires to consult in connection with the proposed transaction.  If
the purchase and sale contemplated hereby are not consummated for any reason
whatever, each party hereto shall, as soon as practicable, return all such
information and documents (and any copies thereof in such party's possession) to
such other party hereto.

                                       62
<PAGE>
 
     Notwithstanding the foregoing, it is acknowledged that the REIT may sell
shares to the general public or in a private placement and that in connection
therewith, the REIT has the absolute and unbridled right to market such
securities and prepare and file all necessary or reasonably required
registration statements and other papers, documents and instruments necessary or
reasonably required in the REIT's judgment, and that of its attorneys and
underwriters, to file a registration statement with respect to its shares with
the U.S. Securities and Exchange Commission and/or similar state authorities and
to cause same to become effective and to disclose therein and thus to its
underwriters, to the U.S. Securities and Exchange Commission and or to similar
state authority and to the public all of the terms, conditions and provisions of
this Agreement, as well as various documents delivered to the REIT and/or Buyer
pursuant to this Agreement provided however, such disclosures shall not be made
until the expiration of the Due Diligence Period or the Extended Due Diligence
Period, without the prior written consent of Seller which shall not be
unreasonably withheld or delayed.

     (c) Survival.  The provisions of this Section 30.11 shall survive the
         --------                          -------------                  
Closing or any earlier termination of this Agreement.

     30.12 Financing.   Buyer's obligations under this Agreement are not
           ---------
contingent upon Buyer's obtaining any third party financing, it being understood
that this is an "all-cash" transaction.

     30.13 Survival.  All obligations of the parties contained herein which
           --------                                                        
by their terms are not to be performed or fulfilled until after Closing and any
other provisions of this Agreement which by their terms survive the Closing or
the earlier termination of this Agreement shall survive the Closing or the
earlier termination of this Agreement.

     30.14 Buyer's Individual Liabilities.  No trustee or officer, agent,
           -------------------------------                               
security holder, or employee of Buyer or its respective affiliates shall ever
have any personal liability for obligations entered into on behalf of Buyer or
its respective affiliates and the assets of any such individuals shall not be
subject to the claims of any person relating to the obligations of Buyer or  its
respective affiliates.
 
     30.15 Seller's Individual Liabilities.  No director, officer, employee
           --------------------------------                                
or agent of Regent Corporation ("RC"), Regent Carolina Corporation ("RCC"), or
Seller, or their other respective affiliates, shall ever have any personal
liability for obligations entered into on behalf of any of RC, RCC, or Seller,
or their respective affiliates and the assets of any such individuals shall not
be subject to the claims of any person or entity relating to the obligations of
RC, RCC, or Seller or any of their respective affiliates.

                                       63
<PAGE>
 
     30.16 Letter of Guaranty.  Not later than ten (10) days before the end
           -------------------                                             
of the Due Diligence Period, Seller shall provide Buyer with a Letter of
Guaranty whereby Regent Carolina Corporation guarantees for a period of one year
following the Closing any post-closing liability of Seller to Buyer under this
Agreement.  In addition, Seller shall provide a similar Letter of Guaranty from
Regent Corporation which will become applicable only in the event a substantial
portion of the assets of Regent Carolina Corporation are sold or transferred
within the year following Closing.  During the Due Diligence Period Buyer shall
satisfy itself concerning the financial strength of the aforementioned
guarantors.

     30.17  Escrow For Unpaid Sales Taxes.  (a)  Seller acknowledges that it has
            -----------------------------                                       
the obligation to pay all sales tax due the State of Florida, Department of
Revenue (the "Department of Revenue") in connection with the operation of the
Orlando Property up to and including the day before the Closing Date (including
any amounts subsequently determined by the Department of Revenue to be due and
owing), and such obligation shall survive Closing.  Seller covenants and agrees
(i) to pay all such sales tax and (ii) to comply with the requirements  of
applicable Florida statutes with respect to the payment of sales tax. Seller
further agrees to escrow such amounts at Closing as may be required by
applicable Florida statutes with respect to the payment of such sales tax.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date and year hereinabove written.



                      THE NEXT PAGE IS THE SIGNATURE PAGE

                                       64
<PAGE>
 
    SIGNATURE PAGE TO PURCHASE AND SALE AGREEMENT BY AND BETWEEN 1700/1750 WEST
LOOP S. LIMITED PARTNERSHIP AND ZENITH PROPERTIES (ATLANTA), INC. AND ZENITH
PROPERTIES (ORLANDO), LIMITED PARTNERSHIP, COLLECTIVELY AS SELLER AND AMERICAN
GENERAL HOSPITALITY OPERATING PARTNERSHIP, L.P. AS BUYER



           "SELLER"                                   "BUYER"

1700/1750 West  Loop S. Limited                American General Hospitality
Partnership                                    Operating Partnership, L.P. 

By: Zenith Properties (Houston), Inc.,         By:  AGH GP, Inc., General
General Partner                                Partner

By: /s/ George Tang                            By: /s/ Bruce G. Wiles      
    ---------------------------                    ---------------------------
Title: Director                                Title: Executive Vice President
       ------------------------                       ------------------------
           "SELLER"

Zenith Properties (Atlanta), Inc.

By: /s/ George Tang
    ---------------------------
Title: Director                
       ------------------------

           "SELLER"

Zenith Properties (Orlando), Limited
Partnership

By: Regent Hospitality Corporation, General
    ---------------------------------------
Partner
 
By: /s/ George Tang
    -----------------------
Title: Director
       --------------------

                                       65


<PAGE>

                                                                     EXHIBIT 2.2
 
                 FIRST AMENDMENT TO PURCHASE AND SALE AGREEMENT


     THIS FIRST AMENDMENT TO PURCHASE AND SALE AGREEMENT ("First Amendment") is
made and entered into as of May 30, 1997, by and between 1700/1750 West Loop S.
Limited Partnership, Zenith Properties (Atlanta), Inc., Zenith Properties
(Orlando), Limited Partnership (hereinafter collectively referred to as
"Seller"), and American General Hospitality Operating Partnership, L.P.
("Buyer").

                                    Recitals
                                    --------

     A.   Buyer and Seller previously entered into a Purchase and Sale Agreement
dated April 15, 1997 (the "Agreement") with respect to the purchase of the
Marriott Hotel West Loop and 1700 West Loop Office Tower, Houston, Texas,
Radisson Hotel Atlanta, Atlanta, Georgia, and Radisson Twin Towers Hotel and
Convention Center, Orlando, Florida, as well as certain other property related
thereto more particularly described in the Agreement.

     B.   Buyer and Seller have agreed to amend the Agreement, subject to and in
accordance with the terms of this First Amendment.

                                     Terms
                                     -----

     Buyer and Seller agree as follows:

     1.   Recitals.  The foregoing recitals are true and are incorporated into
          --------                                                            
this First Amendment.

     2.   Definitions.  Unless otherwise specifically defined in this First
          -----------                                                      
Amendment, all capitalized terms used in this First Amendment shall have the
respective meanings ascribed to them in the Agreement.

     3.   Amendments.  The agreement is hereby amended as follows:
          ----------                                              
 
          3.1. Removal of Atlanta Real Property From Agreement.
               ----------------------------------------------- 

          By execution of this First Amendment  it is acknowledged and agreed by
both Buyer and Seller that the Atlanta Real Property and the Property
attributable thereto are hereby removed from the transaction contemplated by the
Agreement and the Agreement shall be of no further force and effect with respect
to the Atlanta Real Property and the Property attributable thereto and except as
provided in this First Amendment, Buyer shall have no liability or further
obligation with respect thereto.  Further, by execution of this First Amendment
Buyer hereby acknowledges that it is relinquishing any claim or right under the

                                       1
<PAGE>
 
Agreement to or arising from the, Atlanta Real Property and the Property related
thereto and that Seller is free to convey, transfer or dispose of in any manner
the Atlanta Real Property and the Property related thereto free of any claim by
Buyer.

          3.2  Purchase Price.
               -------------- 

               Section 1 (eee) of the Agreement is amended to read in its
entirety as follows:

          (eee) "Purchase Price": The Purchase Price for the property shall be,
$113,600,000 plus Seller's actual cost for the Consumables.   In the event Buyer
elects to take the Extended Due Diligence Period or elects to extend Closing
pursuant to Sections 3.2 hereof, the Purchase Price shall be increased by the
            --------                                                         
amount of the Non-Refundable Deposit.

          3.3  Waiver of Default.  By the execution of this First Amendment
               -----------------                                           
Buyer acknowledges and agrees that it, hereby waives and releases any claims it
may have against Seller arising out of or related to that certain default
alleged by Buyer to have occurred as set forth in that certain letter from
Buyer's counsel Sharyn Gibau-Heyman to Seller's counsel M. Joseph Allman dated
May 14, 1997, which letter is hereby incorporated by reference. Buyer further
acknowledges that the acceptance by Seller of this waiver and release does not
constitute any admission of liability by Seller with respect to said default.

          3.4  Due Diligence Documents.  Buyer agrees to make available at no
               -----------------------                                       
cost to Seller upon written request from Seller, copies of all due diligence
documents, studies, reports, surveys, and environmental reports or audits
undertaken by or on behalf of or received by Buyer with respect to the Atlanta
Real Property.  Seller agrees that said documents will be furnished without
representation or warranty from Buyer as to their accuracy or completeness.

          3.5  Costs and Expenses.  Notwithstanding the provisions of the
               ------------------                                        
Section 9.2 of the Agreement, with respect to the Atlanta Real Property, Buyer
hereby agrees to pay 100% of the costs and expenses which relate to or are
attributable to the Title Commitment, the UCC Searches and the Survey of the
Atlanta Real Property.

          3.6  Closing Date.  Buyer and Seller agree that Section 1(m) is hereby
               ------------                                                     
amended to provide that the Closing Date shall be June 25, 1997.  Buyer shall
use its commercially reasonable efforts with its lender to arrange for an
earlier Closing Date.  Seller and Buyer acknowledge that the Closing Date shall
be extended to July 15, 1997 in the event that Buyer exercises its Section 3.2
extension rights with respect either to the extension of the Due Diligence
Period or, alternatively, to the extension of the Closing Date.

                                       2
<PAGE>
 
          3.7  Title Objections.  Seller agrees that Seller shall use good faith
               ----------------                                                 
efforts to resolve the title objections of Buyer set forth in Paragraph 2(c) of
that certain Title Objection Summary for the Houston Real Property dated May 7,
1997 and the title objections 3(b)(iii) and 3(c) set forth in that certain Title
Objection Summary to Orlando Real Property dated May 7, 1997, but in the event
Seller is unable, after the exercise of good faith efforts, to cure said
objections, Buyer agrees that Buyer will waive the same as title objections.

          3.8  Orlando Limited Partnership.  At Closing, Seller, or its designee
               ---------------------------                                      
will invest the sum of $3,000,000 for a 49% limited partnership interest as the
limited partner in the limited partnership which will lease the Radisson Twin
Towers and Convention Center, Orlando, Florida from Buyer (the "Limited
Partnership").  The general partner of the Limited Partnership will be AGH
Leasing, L.P. The Limited Partnership agreement shall be executed at closing and
shall be substantially in the form of Exhibit A attached hereto, subject to
reasonable changes approved by Seller and Buyer, and shall provide in general
terms:  (i) that the limited partner shall not be required to make any
additional investments other than the initial $3,000,000 investment; (ii) the
49% interest shall stand the first risk of loss up to the amount of the initial
$3,000,000 investment and shall be specifically allocated any losses for income
tax purposes to the extent of losses, if any; (iii) the 49% interest shall be
allocated profits and cash flow in proportion to its partnership interest except
as otherwise set forth in the Limited Partnership agreement; (iv) the limited
partner shall be entitled on an annual basis to restore its capital account via
additional cash investment; and (v) in the instance that such restoration
contribution is not made on a timely basis, the general partner shall accede to
the interest by assuming all obligations of the limited partner and the limited
partner shall be fully and completely released from any and all obligations or
liability of, or to the Limited Partnership or the general partner.  On or
before 5:00 p.m. eastern time June 6, 1997 Seller shall have received from Buyer
an opinion of counsel letter from counsel to the Limited Partnership which shall
be reasonably satisfactory to Seller and which shall provide Seller with
assurances that, provided that Seller has complied with the provisions of the
Limited Partnership Agreement (including any payment obligations in sections 9.4
and 2.1.4.3 thereof): (i)  Seller's maximum liability as a result of its
interest in the Limited Partnership shall not exceed Seller's initial $3,000,000
investment plus amounts wrongfully distributed to Seller from the Partnership;
(ii) the Limited Partnership has been validly formed and will be taxed as a
Limited Partnership; (iii) as limited partner, Seller shall have no liability to
third parties for Limited Partnership obligations except to the extent Seller is
liable to the Limited Partnership; the tax allocation provisions in the Limited
Partnership Agreement (including the provision allocating the first $3,000,000
in losses of the Limited partnership to Seller) satisfy the requirements of
Section 704(b) of the Code and will be respected; and (v) under the Limited
Partnership agreement no income will be allocated to Seller without Seller's
having received an equivalent cash distribution or a credit to its capital
account for such income.  Seller shall have until 5:00 p.m. eastern time June
11, 1997 to notify Buyer in

                                       3
<PAGE>
 
writing of its reasonable approval or reasonable disapproval of said opinion of
counsel letter. Seller's reasonable approval of such opinion of counsel letter
in form reasonably satisfactory to Seller shall be a condition precedent to
Seller's obligation to Close the transaction contemplated herein. In the event
that Seller reasonably disapproves of said opinion of counsel letter, Seller at
its option may terminate the Agreement, in which case Buyer shall be entitled to
the return of the Deposit and thereafter Seller and Buyer shall have no further
obligations or liabilities one to the other hereunder except for any indemnity
or liability of Buyer pursuant to Section 5 hereof and other obligations which
                                  --------- 
 this Agreement shall state expressly survive termination hereof.

          3.9   Exclusion of Laundry Facility Property From Orlando Real
                --------------------------------------------------------
Property.
- -------- 

          Section 1(aaa) of the Agreement is amended to read in its entirety as
follows:

                (aaa) "Orlando Real Property": Shall mean that certain real
property located in the County of Orange, State of Florida, described in Exhibit
A-3 upon which the Radisson Twin Towers Hotel and Convention Center, having a
street address of 5780 Major Blvd., Orlando, Florida is located, (but expressly
excluding from that certain real property described in Exhibit A-3, that certain
real property upon which the laundry facility used in connection with the
Radisson Twin Towers Hotel and Convention Center, having a street address of
5824 Precision Drive, Orlando, Florida is located which is not part of the
Property being conveyed to Buyer under the Agreement), together with all of
Seller's right, title and interest, if any, in an to all rights of way, streets,
alleys, easements and strips or gores of land appurtenant to the aforedescribed
real property.

          3.10 Side Letter -- Laundry Facility.
               ------------------------------- 

          On or before 5:00 p.m. eastern time, June 2, 1997 Buyer and Seller
shall agree on the terms of a letter concerning the provision of laundry
services to the Orlando Real Property.  In the event Buyer and Seller shall fail
to agree on the terms of such letter Buyer may, at its option, terminate the
Agreement in which case Buyer shall be entitled to the return of the Deposit and
thereafter Seller and Buyer shall have no further obligations or liabilities one
to the other hereunder except for any indemnity or liability of Buyer pursuant
to Section 5 hereof and other obligations which this Agreement shall state
   ---------                                                              
expressly survive termination hereof.

     4.   No Other Modifications.  Except as specifically amended by this First
          ----------------------                                               
Amendment, the Agreement shall remain in full force and effect without other
amendment or modification.  Seller and Buyer specifically acknowledge that the
indemnity obligations of Buyer as set forth in Section 5 (g) of the Agreement
and the confidentiality provisions as

                                       4
<PAGE>
 
set forth in Section 30.11(b) of the Agreement, as the same relate to the
Radisson Hotel Atlanta property shall survive the execution of this First
Amendment and shall remain in full force and effect thereto.

     5.   Counterparts.  This Amendment may be executed in counterparts, each of
          ------------                                                          
which shall be considered an original, but all of which shall constitute one and
the same document.  Delivery of an executed counterpart by any party to this
Agreement may be made to the other party by facsimile, and such facsimile shall
have the same force and effect as an original.  Any party so delivering the
other party an original by facsimile transmission shall promptly deliver to the
other party an original executed counterpart of this Amendment, but failure to
do so shall not affect the validity of the execution and delivery of this
Amendment.

     The parties hereto have executed this First Amendment to Purchase and Sale
Agreement as of the date and year hereinabove written.



                      THE NEXT PAGE IS THE SIGNATURE PAGE

                                       5
<PAGE>
 
            SIGNATURE PAGE TO FIRST AMENDMENT TO PURCHASE AND SALE
            AGREEMENT BY AND BETWEEN 1700/1750 WEST LOOP S. LIMITED
         PARTNERSHIP AND ZENITH PROPERTIES (ATLANTA), INC. AND ZENITH
          PROPERTIES (ORLANDO), LIMITED PARTNERSHIP, COLLECTIVELY AS
               SELLER AND AMERICAN GENERAL HOSPITALITY OPERATING
                          PARTNERSHIP, L.P. AS BUYER


           "SELLER"                                      "BUYER"             
                                                                                
1700/1750 West  Loop S. Limited                American General Hospitality
Partnership                                    Operating Partnership, L.P. 
                                                                           
By: Zenith Properties (Houston), Inc.,         By: AGH GP, Inc., General   
General Partner                                Partner                     
                                                                           
By: /s/ George Tang                            By: /s/ Bruce G. Wiles      
    ----------------------------------             -----------------------------
Title: President                               Title: Executive Vice Presidnt
       -------------------------------                --------------------------

                "SELLER"                                 
     
Zenith Properties (Atlanta), Inc.

By: /s/ George Tang           
    ----------------------------------
Title: President
       -------------------------------

           "SELLER"

Zenith Properties (Orlando), Limited
Partnership

By: Regent Hospitality Corporation,
General Partner
 
By: /s/ George Tang
    ----------------------------------
Title: President
       -------------------------------

                                       6


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