HEALTH MANAGEMENT ASSOCIATES INC
8-K, 1996-06-21
GENERAL MEDICAL & SURGICAL HOSPITALS, NEC
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<PAGE>
 
                                 UNITED STATES
                       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:  June 10, 1996


                      HEALTH MANAGEMENT ASSOCIATES, INC.
- -------------------------------------------------------------------------------
            (Exact name of Registrant as specified in its charter)


      DELAWARE                     000-18799              61-0963645      
- --------------------------------------------------------------------------------
(State or other jurisdiction       (Commission           (IRS Employer
    of incorporation)              File Number)       Identification No.)


5811 PELICAN BAY BLVD., SUITE 500, NAPLES, FLORIDA     33963-2710
- --------------------------------------------------------------------------------
     (Address of principal executive offices)          (Zip Code)


       Registrant's telephone number, including area code: (941)598-3131



- --------------------------------------------------------------------------------
         (Former name or former address, if changed since last report)



                       This report consists of 75 pages.
<PAGE>
 
 Item 2.  Acquisition or Disposition of Assets
 ---------------------------------------------

  On June 10, 1996 the Company completed the acquisition of the Midwest City
Regional Hospital, a 208-bed hospital located in Midwest City, Oklahoma County,
Oklahoma. The transaction, which was the result of an arms-length negotiation,
includes a thirty year lease of the buildings and equipment from the Midwest
City Memorial Hospital Authority. To complete the transaction, the Company
defeased two outstanding bond issues, paid off the balance of an outstanding
mortgage, and assumed certain other debt at closing. In addition, the Company
purchased the hospital's working capital as of May 31, 1996, which is subject to
post-closing settlement upon completion of an independent audit.

  The total acquisition cost was approximately $69,776,000.  The following
summarizes a preliminary allocation of the transaction cost to the major
categories of assets acquired and liabilities assumed:

       Working capital                 $ 6,463,000
       Leasehold acquisition cost-
            buildings and equipment     64,600,000
       Long-term debt                   (1,287,000)
                                       ----------- 

                                       $69,776,000
                                       ===========

  The source of funds for the acquisition was cash on hand of the Company.  The
Company intends to continue use of the assets acquired as a hospital facility.

  The above transaction was closed effective June 10, 1996 pursuant to a
Definitive Agreement and Lease Agreement, both dated May 21, 1996 among Midwest
City Memorial Hospital Authority, an Oklahoma Public Trust, and Midwest City
HMA, Inc. and Health Management Associates, Inc.  The foregoing description of
the acquisition is qualified in its entirety by reference to the Definitive
Agreement and Lease Agreement, which are filed as Exhibit 2.1 at page 8 of this
Report.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits
- ---------------------------------------------------------------------------

  (a) and (b)  Financial Statements and Pro Forma Financial Information

  At the time of this Report, it is impracticable to provide the financial
statements (including a manually-signed accountants' report) and the unaudited
pro forma financial information required by Item 7(a) and (b) of Form 8-K.  The
required financial statements, manually-signed accountants' report and unaudited
pro forma financial information will be filed by the Registrant, under cover of
Form 8-K/A, as soon as practicable, but not later than August 23, 1996.

  (c)  Exhibits

  See Index to Exhibits

                                       2
<PAGE>
 
                                  SIGNATURES
                                  ----------


  Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this Report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                            Health Management Associates, Inc.
                            ----------------------------------
                                        (Registrant)



                            By: /s/ Stephen M. Ray
                               -------------------------------
                               Stephen M. Ray
                               Senior Vice President - Finance
                               (Duly authorized officer and
                               Principal Financial Officer)

Date:  June 17, 1996

                                       3
<PAGE>
 
                               INDEX TO EXHIBITS

(1)  Underwriting agreement

     Not applicable

(2)  Plan of acquisition, reorganization, arrangement, liquidation or
     succession.

     2.1  Definitive Agreement and Lease Agreement, both dated May 21, 1996,
          among Midwest City Memorial Hospital Authority, an Oklahoma Public
          Trust, and Midwest City HMA, Inc. and Health Management Associates,
          Inc. are included herein as Exhibit 2.1 at page 8 of this Report.


(4)  Instruments defining the rights of security holders, including indentures.

     The Fourth Restated Certificate of Incorporation, previously filed and
     included as Exhibit 3.4 to the Company's Registration Statement on Form S-
     1, Amendment No. 2 (Registration No. 33-36406), is incorporated herein by
     reference.

     The Certificate of Amendment of the Fourth Restated Certificate of
     Incorporation, previously included as Exhibit 3.2 to the Company's Annual
     Report on Form 10-K for the fiscal year ended September 30, 1992, is
     incorporated herein by reference.

     By-laws, as amended, previously filed and included as Exhibit 3.2 to the
     Company's Quarterly Report on Form 10-Q for the quarter ended December 31,
     1995, is incorporated herein by reference.

     Amended and Restated Credit Agreement, dated September 29, 1998, between
     Liberty National Bank and Trust Company of Louisville, the Company, HMA
     Holding Corp. and certain subsidiaries, including subsequent Amendments One
     through Five thereto, previously filed and included as Exhibits 4.7 through
     4.11 and 4.15 to the Company's Registration Statement on Form S-1
     (Registration No. 33-36406), is incorporated herein by reference.

     Sixth Amendment to Amended and Restated Credit Agreement, dated June 10,
     1991, between the Company and Liberty National Bank and Trust Company of
     Louisville, previously filed and included as Exhibit 4.17 to the Company's
     Registration Statement on Form S-1 (Registration No. 33-43193), is
     incorporated herein by reference.

                                       4
<PAGE>
 
                         INDEX TO EXHIBITS (Continued)

     Seventh Amendment to Amended and Restated Credit Agreement, dated June 16,
     1992, between the Company and Liberty National Bank and Trust Company of
     Louisville, previously filed and included as Exhibit 4.1 to the Company's
     Quarterly Report on Form 10-Q for the quarter ended June 30, 1992, is
     incorporated herein by reference.

     Eighth Amendment to Amended and Restated Credit Agreement, dated November
     30, 1992, between the Company and Liberty National Bank and Trust Company
     of Louisville, previously filed and included as Exhibit 4.10 to the
     Company's Annual Report on Form 10-K for the fiscal year ended September
     30, 1992, is incorporated herein by reference.

     Ninth Amendment to Amended and Restated Credit Agreement, dated October 18,
     1993, between the Company and Liberty National Bank and Trust Company of
     Louisville, previously filed and included as Exhibit 4.14 to the Company's
     Annual Report on Form 10-K for the fiscal year ended September 30, 1993, is
     incorporated herein by reference.

     Term Loan Agreement among Riverview Regional Medical Center, Inc. and NCNB
     National Bank of Florida, the Bank of Nova Scotia and the Banks named
     therein, dated July 6, 1992, Parent Guaranty Agreement made as of July 6,
     1992, and Interest Rate Swap transaction, effective July 15, 1992,
     previously filed and included as Exhibit 4.1 to the Company's Quarterly
     Report on Form 10-Q for the quarter ended June 30, 1992, is incorporated
     herein by reference.

     Fourth Amended and Restated Credit and Reimbursement Agreement among the
     Company and NationsBank of Florida National Association and the Banks named
     therein, dated December 1, 1994, previously filed and included as Exhibit
     4.12 to the Company's Annual Report on Form 10-K for the year ended
     September 30, 1994, is incorporated herein by reference.

     Amended and Restated Parent Guaranty Agreement of Health Management
     Associates, Inc. related to a Term Loan agreement made July 6, 1992 among
     Riverview Regional Medical Center, Inc., NationsBank of Florida, National
     Association, and the Banks named therein, made as of December 1, 1994,
     previously filed and included as Exhibit 4.1 to the Company's Quarterly
     Report on Form 10-Q for the quarter ended March 31, 1995, is incorporated
     herein by reference.

     Credit Agreement between Gaffney HMA, Inc. and First Union National Bank of
     North Carolina, dated September 2, 1993, and Guaranty Agreement between
     Health Management Associates, Inc. and First Union National Bank of North
     Carolina, made as of

                                       5
<PAGE>
 
                         INDEX TO EXHIBITS (Continued)


     September 2, 1993, previously filed and included as Exhibit
     4.2 to the Company's Quarterly Report on Form 10-Q for the
     quarter ended March 31, 1995, are incorporated herein by reference.

     Modification Agreement (to the Guaranty Agreement between Health Management
     Associates, Inc. and First Union National Bank of North Carolina related to
     the Credit Agreement dated September 2, 1993 between Gaffney HMA, Inc. and
     First Union National Bank of North Carolina) between Health Management
     Associates, Inc. and First Union National Bank of North Carolina, made as
     of December 16, 1994, previously filed and included as Exhibit 4.3 to the
     Company's Quarterly Report on Form 10-Q for the quarter ended March 31,
     1995, is incorporated herein by reference.

     Modification Agreement (to the Guaranty Agreement dated November 20, 1987
     for a Mortgage Construction Loan to Orlando HMA, Inc.) by and between
     Health Management Associates, Inc. and First Union National Bank of
     Florida, made as of April 10, 1995, previously filed and included as
     Exhibit 4.1 to the Company's Quarterly Report on Form 10-Q for the quarter
     ended June 30, 1995, is incorporated herein by reference.

     Modification Agreement (to the Guaranty Agreement dated August 19, 1988 for
     a Mortgage Construction Loan to Martin HMA, Inc.) by and between Health
     Management Associates, Inc. and First Union National Bank of Florida, made
     as of April 10, 1995, previously filed and included as Exhibit 4.2 to the
     Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 1995
     is incorporated herein by reference.

(16) Letter re change in certifying accountant

     Not applicable.

(17) Letter re director resignation

     Not applicable.

(20) Other documents of statements to security holders

     Not applicable.

(23) Consents of experts and counsel.

     Not applicable.

(24) Power of Attorney.

     Not applicable.


                                       6
<PAGE>
 
                         INDEX TO EXHIBITS (Continued)



(27) Financial Data Schedule.

     Not applicable.

(99) Additional Exhibits.

     Not applicable.



                                       7

<PAGE>
 
                                                                     EXHIBIT 2.1
<PAGE>
 
                              DEFINITIVE AGREEMENT


                               DATED MAY 21, 1996


                                     AMONG


                   MIDWEST CITY MEMORIAL HOSPITAL AUTHORITY,
                            AN OKLAHOMA PUBLIC TRUST


                                      AND


                             MIDWEST CITY HMA, INC.


                                      AND


                       HEALTH MANAGEMENT ASSOCIATES, INC.
<PAGE>
 
                               TABLE OF CONTENTS
 
 
ARTICLE 1.  DEFINITIONS                                        1
            1.1  Definitions.................................  1
            1.2  Interpretation..............................  6
 
ARTICLE 2.  BASIC TRANSACTIONS                                 6
            2.1  Lease of Leased Assets......................  6
            2.2  Purchase of Certain Assets..................  6
            2.3  Assets Excluded from Transactions...........  6
            2.4  Assumption of Certain Liabilities...........  6
            2.5  Purchase Price..............................  7
            2.6  Post-Closing Adjustment.....................  7
 
ARTICLE 3.  CLOSING                                            8
            3.1  Closing                                       8
            3.2  Actions of Sub and HMA at Closing...........  8
            3.3  Actions of the Authority at Closing.........  9
            3.4  Payment of Tax-Exempt Debt..................  10
 
ARTICLE 4.  REPRESENTATIONS AND WARRANTIES OF THE AUTHORITY    10
            4.1  Organization and Authorization..............  10
            4.2  Assets; Title...............................  11
            4.3  Consents; Absence of Conflicts With Other 
                 Agreements, Etc.............................  11
            4.4  Binding Obligations.........................  12
            4.5  Financial Statements........................  12
            4.6  No Additional Material Liabilities..........  12
            4.7  Licenses                                      12
            4.8  Medicare Participation; Accreditation.......  13
            4.9  Regulatory Compliance.......................  13
           4.10  Contracts                                     13
           4.11  Equipment                                     14
           4.12  Insurance                                     14
           4.13  Employee Benefit Plans......................  14
           4.14  Employee Relations..........................  14
           4.15  Litigation or Proceedings...................  15
           4.16  Special Funds...............................  15
           4.17  Medical Staff Matters.......................  15
           4.18  Subsequent Results..........................  15
           4.19  Environmental Matters.......................  15
           4.20  Taxes.......................................  16
           4.21  No Broker's Fees............................  16
           4.22  Disclosure..................................  17
 
ARTICLE 5.  REPRESENTATIONS AND WARRANTIES OF SUB AND HMA      17
            5.1  Organization and Authorization of HMA.......  17
            5.2  Organization and Authorization of Sub.......  17
            5.3  Consents; Absence of Conflicts With Other 
                 Agreements, Etc.............................  17
            5.4  Binding Obligations.........................  18
            5.5  Sub's Regulatory Compliance.................  18
            5.6  Litigation or Proceedings...................  18
            5.7  No Broker's Fees............................  18

                                      (i)
<PAGE>
 
            5.8  Disclosure..................................  18
 
ARTICLE 6.  PRE-CLOSING ACTIONS BY THE AUTHORITY               18
            6.1  Transition; Access..........................  18
            6.2  Operations..................................  19
            6.3  Negative Covenants..........................  19
            6.4  Regulatory Approvals........................  20
            6.5  Additional Financial Information............  20
            6.6  Closing Conditions..........................  20
 
ARTICLE 7.  PRE-CLOSING ACTIONS BY SUB AND HMA                 20
            7.1  Regulatory Approvals........................  20
            7.2  Closing Conditions..........................  20
 
ARTICLE 8.  CONDITIONS PRECEDENT TO SUB'S AND HMA'S OBLIGA-
            TIONS............................................  21
            8.1  Representations, Warranties and Covenants...  21
            8.2  Opinion of the Authority's Counsel..........  21
            8.3  Pre-Closing Confirmations...................  22
            8.4  Actions or Proceedings......................  22
            8.5  Leasehold Title Insurance Matters...........  22
            8.6  No Adverse Change...........................  23
            8.7  Other Instruments and Documents.............  23
 
ARTICLE 9.  CONDITIONS PRECEDENT TO THE AUTHORITY'S OBLIGA-
            TIONS............................................  23
            9.1  Representations, Warranties and Covenants...  23
            9.2  Opinion of Sub's and HMA's Counsel..........  23
            9.3  Pre-Closing Confirmations...................  24
            9.4  Actions or Proceedings......................  24
            9.5  Other Instruments and Documents.............  24
 
ARTICLE 10.  INDEMNIFICATION                                   25
           10.1  Indemnification by HMA......................  25
           10.2  Indemnification by the Authority............  25
           10.3  Indemnification Procedure...................  26
 
ARTICLE 11.  FURTHER COVENANTS                                 27
           11.1  Terminating Cost Reports....................  27
           11.2  Insurance Coverage..........................  27
           11.3  Confidentiality.............................  27
           11.4  Publicity                                     28
           11.5  Costs of Transaction........................  28
           11.6  Preservation of Books and Records...........  28
           11.7  Cooperation.................................  29
 
ARTICLE 12.  IN GENERAL                                        29
           12.1  Enforcement Expenses........................  29
           12.2  Notices                                       29
           12.3  Schedules and Other Instruments.............  30
           12.4  Survival                                      30
           12.5  Choice of Law...............................  30
           12.6  Benefit                                       30
           12.7  Waivers and Consents........................  30
           12.8  Severability................................  31

                                      (ii)
<PAGE>
 
           12.9  Inferences..................................  31
          12.10  Entire Agreement............................  31
          12.11  Amendment                                     31
          12.12  Counterparts................................  31
 
Table of Schedules ..........................................  33

                                     (iii)
<PAGE>
 
                              DEFINITIVE AGREEMENT


     THIS DEFINITIVE AGREEMENT (this "AGREEMENT") is made and entered into on
May 21, 1996, by and among MIDWEST CITY MEMORIAL HOSPITAL AUTHORITY, an Oklahoma
public trust (the "AUTHORITY"), and MIDWEST CITY HMA, INC., an Oklahoma
corporation ("SUB"), and HEALTH MANAGEMENT ASSOCIATES, INC., a Delaware
corporation ("HMA").

     WHEREAS, the Authority operates certain facilities located in The City of
Midwest City, Oklahoma (the "CITY"), consisting of:  a general acute care
hospital licensed by the State of Oklahoma for 208 beds known as Midwest City
Regional Hospital (the "HOSPITAL"), together with all businesses owned or leased
by the Hospital or by the Authority in connection with the Hospital, including
the Renaissance Women's Center, home health services and offices, including all
real property, whether developed or undeveloped, associated with any of the
foregoing (all of which, including the Hospital, being hereinafter sometimes
referred to collectively as the "HOSPITAL FACILITIES");

     WHEREAS, certain of the assets comprising the Hospital Facilities are owned
by the Authority, and certain of the assets comprising the Hospital Facilities
are owned by the City and leased to the Authority pursuant to that certain
Amended Lease Agreement dated October 28, 1963, as amended, between the City and
the Authority (the "CITY LEASE");

     WHEREAS, the Authority desires to lease or sublease, as the case may be,
the Hospital Facilities to Sub, and Sub desires to lease or sublease, as the
case may be, the Hospital Facilities from the Authority, all as set forth in
that certain Lease Agreement of even date herewith among the Authority (as
Lessor), Sub (as Lessee) and HMA (as Guarantor) (the "LEASE"), and the Authority
desires to sell to Sub certain assets related to the Hospital Facilities and Sub
desires to purchase such assets, all on the terms and conditions set forth in
this Agreement; and

     WHEREAS, Sub is the wholly-owned subsidiary of HMA, and HMA has agreed to
all of the terms of this Agreement.

     NOW, THEREFORE, for and in consideration of the premises, and the
agreements, covenants, representations and warranties hereinafter set forth, and
other good and valuable consideration, the receipt and adequacy of which are
hereby acknowledged, the parties agree as follows:

ARTICLE 1.  DEFINITIONS

     1.1  DEFINITIONS.  In addition to the other definitions contained in the
heading paragraph and the Recitals of this Agreement and in Section 1.2, the
following terms will, when used in this Agreement, have the following respective
meanings:

     "AFFILIATE" means an entity which, directly or indirectly, controls, is
controlled by, or is under common control with, the referenced party.
<PAGE>
 
     "ASSETS" means, collectively, the Leased Assets and the Purchased Assets.

     "ASSUMED LIABILITIES" has the meaning given it by Section 2.4(b).

     "AUDITORS" means Baird, Kurtz & Dobson, the certified public accountants
regularly retained by the Authority.

     "CLOSING" means the consummation of the transactions contemplated by this
Agreement.

     "CLOSING BALANCE SHEET" means the audited balance sheet of the Authority as
of the Effective Date, prepared in accordance with GAAP consistently applied
with the prior year's audited statements, as more fully described in Section
2.6(a).

     "CONFIDENTIAL INFORMATION" has the meaning given it by Section 11.3.

     "CONTRACTS" means, collectively, the capitalized leases, operating leases,
contracts, agreements and commitments of the Hospital, or of the Authority in
respect of any of the Hospital Facilities, whether written or oral, that are set
forth in Schedule 2.2 (including the Employment Agreement of Oscar Karl
Weinmeister, Jr. and the First Amendment thereto, which was renewed by the
Authority on May 14, 1996), together with all other capitalized leases,
operating leases, contracts, agreements and commitments added to Schedule 2.2
subsequent to Closing by mutual agreement of the parties.

     "CURRENT ASSETS" has the meaning given it by Section 2.2.

     "CURRENT LIABILITIES" has the meaning given it by Section 2.4(b).

     "EFFECTIVE DATE" means 12:01 a.m., local time, on June 1, 1996.

     "ENVIRONMENTAL ASSESSMENT" has the meaning given it by Section 4.19.

     "ENVIRONMENTAL LAWS" means, collectively, all federal, state and local
statutes, regulations, ordinances, codes, published guidelines and policies,
directives and orders (including all amendments thereto) pertaining to
environmental matters (which includes air, water vapor, surface water,
groundwater, soil or natural resources), including the Comprehensive
Environmental Response, Compensation and Liability Act, the Medical Waste
Tracking Act, the Resource Conservation and Recovery Act, the Clean Air Act, the
Federal Water Pollution Control Act, the Safe Water Drinking Act and the Toxic
Substance Control Act.

     "ENVIRONMENTAL PERMITS" means all applicable permits, licenses,
registrations, orders, authorizations and approvals of any Governmental Entity
required under any Environmental Law.

     "ESCROW ACCOUNT" means the interest-bearing escrow account created pursuant
to an Escrow Agreement agreed to and executed by the

                                       2
<PAGE>
 
parties and Boatmen's First National Bank of Oklahoma, as escrow agent, on or
before the Effective Date, and all references herein to actions taken with
respect to the Escrow Account mean actions taken in accordance with the
provisions of such Escrow Agreement.

     "ESTIMATED PURCHASE PRICE" has the meaning given it by Section 2.5.

     "EXCLUDED ASSETS" means, collectively:  (a) all of the Hospital's Cash,
Investments, Escrowed Funds and Funded Depreciation, all as shown on the Closing
Balance Sheet; (b) the City Lease and all other leases, contracts, agreements
and commitments of the Hospital, or of the Authority in respect of any of the
Hospital Facilities, not set forth in Schedule 2.2; (c) all employee benefit
agreements, arrangements, plans and programs, and all funds and accounts related
thereto, whether relating to employees of the Hospital or the Authority or
otherwise; (d) all supplies and inventory disposed of or exhausted, and all
items of equipment disposed of, prior to the Effective Date in the ordinary
course of business and in accordance with the terms hereof; (e) all corporate or
governmental books and records, bank account records, documents subject to
attorney-client privilege, proprietary information not owned by the Authority,
tax returns of the Authority, and all records which by law the Authority is
required to retain in its possession; and (f) those items set forth in Schedule
2.3.

     "FINANCIAL STATEMENTS" means:  (a) the audited balance sheets of the
Authority as of December 31, 1993, 1994 and 1995, and the related audited
statements of revenues and expenses, fund balances and cash flows for the years
then ended; and (b) the unaudited balance sheet of the Authority as of March 31,
1996, and the related unaudited statements of revenues and expenses, fund
balances and cash flows for the three-months then ended; in each case prepared
in accordance with GAAP consistently applied with the prior year's audited
statements (unless otherwise noted in the notes thereto).

     "FIRST MORTGAGE BONDS" means those certain several series of bonds issued
by the Authority under that certain First Mortgage Revenue Bond Indenture, dated
August 15, 1963, as supplemented.

     "FIRST PARTY" has the meaning given it by Section 11.3.

     "FUNDED DEPRECIATION AMOUNT" means an amount equal to the Authority's
Funded Depreciation, as set forth on the Closing Balance Sheet.

     "GAAP" means generally accepted accounting principles.

     "GOOD TITLE" means (a) with respect to the Premises, good and marketable
title, and (b) with respect to the Assets other than the Premises, good and
clear title.

     "GOVERNMENTAL ENTITY" means any federal, state or local court, legislative
body, governmental body, municipality, political subdivision, department,
commission, board, bureau, agency or

                                       3
<PAGE>
 
authority.

     "HAZARDOUS SUBSTANCES" means and includes:  (a) any hazardous materials,
hazardous wastes, hazardous substances and toxic substances as those or similar
terms are defined under any Environmental Law; (b) Medical Waste; (c) any
asbestos or any material that contains any hydrated mineral silicate, including
chrysolite, amosite, crocidolite, tremolite, anthophylite and/or actinolite,
whether friable or non-friable; (d) any polychlorinated biphenyls or
polychlorinated biphenyl-containing materials or fluids; (e) radon; (f) any
other hazardous, radioactive, toxic or noxious substance, material, pollutant or
solid, liquid or gaseous waste; (g) any pollutant or contaminant (including
petroleum, petroleum hydrocarbons, petroleum products, crude oil or any
fractions thereof, natural gas or synthetic gas) that in its condition,
concentration or area of release could have a significant effect on human
health, the environment or natural resources; and (h) any substance that,
whether by its nature or its use, is or becomes subject to regulation under any
Environmental Laws or with respect to which any Environmental Laws or
Governmental Entity requires or will require environmental investigation,
monitoring or remediation.

     "INDEMNIFIED PARTY" and "INDEMNIFYING PARTY" have the respective meanings
given them by Section 10.3(b).

     "LEASE COMMENCEMENT DATE" has the meaning given it by Section 1.1 of the
Lease.

     "LEASED ASSETS" means, collectively:  (a) the Premises; (b) all furniture,
furnishings, equipment and vehicles contained on the Premises or used in
connection therewith or with the operation of the Hospital Facilities, whether
owned by the City, by the Hospital or by the Authority, all as reflected on the
Closing Balance Sheet; (c) to the extent transferable, all Licenses and Permits,
including all Environmental Permits, and all other rights, privileges and
franchises relating to the operations or development of, and all patents and
patent applications, trade names, trademarks and service marks (or variations
thereof) associated with, the Hospital Facilities; (d) all businesses owned or
leased by the Hospital or by the Authority with respect to the Hospital,
including those businesses comprising the Hospital Facilities; and (e) all
rights, privileges and interests appurtenant to the foregoing; provided,
however, that the Leased Assets do not include any of the Purchased Assets or
any of the Excluded Assets.

     "LICENSES AND PERMITS" means, collectively, the State of Oklahoma
Department of Health Hospital license, and any other licenses required for Sub
validly to operate the Hospital Facilities and the Leased Assets, and all other
licenses, permits, certificates, registrations, consents, accreditations,
orders, authorizations and approvals of any Governmental Entity, including the
City and the State of Oklahoma, which are necessary for Sub's operation of the
Hospital Facilities or the Leased Assets.

     "LOSSES" means any and all losses, liabilities, claims, demands,

                                       4
<PAGE>
 
suits, causes of action, judgments, obligations, damages and deficiencies, and
all costs and expenses incident thereto (including reasonable attorneys' fees
and all other reasonable expenses incurred in investigating and preparing or
defending any litigation or proceeding, commenced or threatened, whether such
litigation or proceeding is prosecuted by a party hereto or by a third party),
and as further elaborated in Section 10.3(a).

     "MEDICAL WASTE" means any solid waste generated in the diagnosis, treatment
or immunizations of human beings or animals or in research pertaining thereto.
Medical Waste includes special waste from health care facilities or providers
which if improperly treated or handled may serve to transmit infectious diseases
and which is composed of animal waste, bulk blood and blood products,
microbiological waste, pathological waste or sharps, but does not include
garbage or refuse from offices, kitchens or other non-health care activities.

     "OTHER PARTY" has the meaning given it by Section 11.3.

     "PERMITTED ENCUMBRANCES" means:  (a) the City Lease; (b) standard printed
exceptions shown on the Title Commitment; (c) such encumbrances which,
individually or in the aggregate, do not materially detract from the value or
impair the use or marketability of any of the Assets; (d) the liens and
encumbrances set forth on Schedule 4.2 (including those related to the First
Mortgage Bonds, but only to the extent that the same are merely an encumbrance
of record); (e) liens for taxes, not yet delinquent, for years subsequent to
1995; (f) the effect of any zoning ordinances currently enacted and affecting
the Premises; and (g) such other liens or encumbrances as HMA or Sub may
expressly permit in writing subsequent to the Effective Date; provided, however,
that liens or encumbrances arising out of any capital debt or other long-term
liabilities of the Authority or the Hospital (other than liens and encumbrances
set forth on Schedule 4.2) are not Permitted Encumbrances.

     "PREMISES" has the meaning given it by Section 1.1 of the Lease.

     "PURCHASE PRICE" has the meaning given it by Section 2.5.

     "PURCHASED ASSETS" has the meaning given it by Section 2.2.

     "RELEASE" or "RELEASED" when used in reference to Hazardous Substances has
the meaning given by 42 U.S.C. (S)9601(22).

     "TAX-EXEMPT DEBT" means the Tax-Exempt Debt of the Authority related to the
Hospital, as set forth on the Closing Balance Sheet.

     "TAXES" means, collectively, federal, state and local income, payroll,
withholding, excise, sales, use, real and personal property, use and occupancy,
business and occupation, mercantile, real estate, capital stock and franchise or
other taxes, including penalties and interest thereon and estimated taxes.

     "TITLE COMMITMENT" has the meaning given it by Section 8.5(a).

                                       5
<PAGE>
 
     1.2  INTERPRETATION.  In this Agreement, unless the context otherwise
requires:  (a) references to "Articles" and "Sections" are to the Articles or
Sections of this Agreement, and references to "Schedules" are to the Schedules
annexed hereto; (b) references to any party to this Agreement include references
to its respective successors and permitted assigns; (c) references to a judgment
include references to any order, writ, injunction, decree, determination or
award of any court or tribunal; (d) references to a person or entity include
references to any individual, company, body corporate, association, partnership,
firm, joint venture, trust or Governmental Entity; (e) any of the terms defined
herein may, unless the context requires otherwise, be used in the singular or
the plural depending on the reference; (f) the masculine pronoun includes the
feminine and the neuter, as appropriate in the context; (g) with respect to any
matter or thing, the terms "including" or "includes" mean including but not
limited to such matter or thing; and (h) with respect to any party, the term
"knowledge" of such party means the actual knowledge of any trustee, director or
executive officer of such party.  The divisions of this Agreement into articles,
sections and subsections and the use of captions and headings in connection
therewith are solely for convenience and have no legal effect in construing the
provisions of this Agreement.

ARTICLE 2.  BASIC TRANSACTIONS

     2.1  LEASE OF LEASED ASSETS.  At Closing, the Authority, Sub and HMA will
execute and deliver the Lease, which provides for the sublease by the Authority
to Sub of the Leased Assets owned by the City and the lease by the Authority to
Sub of all of the Leased Assets other than the Leased Assets owned by the City.

     2.2  PURCHASE OF CERTAIN ASSETS.  At Closing, the Authority will sell,
assign and transfer to Sub all of the Authority's right, title and interest in
and to the following (collectively, the "PURCHASED ASSETS"):  (a) the Contracts,
and (b) the net realizable value of the Hospital's Accounts Receivable
(including those related to Medicare and Medicaid), Patient Receivables and
Other Receivables, the Hospital's Net Usable Inventories, stated at the lower of
cost or market, and the Hospital's Prepaid Expenses usable by Sub, in each case
as the same exist on the Effective Date, as shown on the Closing Balance Sheet
and as defined by GAAP consistently applied (collectively, the "CURRENT
ASSETS"); provided, however, that the Purchased Assets do not include any of the
Leased Assets or any of the Excluded Assets.

     2.3  ASSETS EXCLUDED FROM TRANSACTIONS.  The Excluded Assets are not
intended by the parties to be transferred, whether by lease or by purchase and
sale, to Sub at Closing and are excluded from the transactions contemplated by
this Agreement and by the Lease.

     2.4  ASSUMPTION OF CERTAIN LIABILITIES.

          (a) It is expressly understood and agreed that neither Sub nor HMA
will assume nor will either of them be liable for any liability, obligation,
claim against or contract of the Authority, the

                                       6
<PAGE>
 
City or the Hospital of any kind or nature, at any time existing or asserted,
whether or not accrued, whether fixed, contingent or otherwise, whether known or
unknown, and whether or not recorded on the books and records of the Authority,
the City or the Hospital, arising out of or by reason of this or any other
transaction or event occurring prior or subsequent to the Effective Date, unless
such liability, obligation, claim or contract is expressly assumed by Sub
pursuant to Section 2.4(b).

          (b) At Closing, Sub will assume and agree to satisfy and hold the
Authority harmless against payment and performance coming due on and after the
Effective Date of only the following (collectively, the "ASSUMED LIABILITIES"):
(i) the Contracts (including the capitalized leases set forth on Schedule 2.2);
(ii) the Authority's indebtedness to Boatmen's First National Bank of Oklahoma,
as evidenced by that certain Second Amended and Restated Promissory Note dated
October 6, 1995 in the original principal amount of $2,390,525; and (iii) the
Hospital's Total Current Liabilities, less the current portion of long-term
debt, all stated at their present values as defined by GAAP consistently
applied, as the same exist on the Effective Date and as shown on the Closing
Balance Sheet (collectively, the "CURRENT LIABILITIES").

     2.5  PURCHASE PRICE.  As payment for the Purchased Assets, Sub will pay to
the Authority a purchase price in the amount of the excess of the Current Assets
over the Current Liabilities as of the Effective Date (the "PURCHASE PRICE").
At Closing, Sub will pay the Purchase Price into the Escrow Account in an amount
estimated for purposes of Closing and agreed to by the parties prior to the
Effective Date (the "ESTIMATED PURCHASE PRICE"), and the Estimated Purchase
Price will be subject to post-Closing adjustment as provided by Section 2.6.

     2.6   POST-CLOSING ADJUSTMENT.

          (a) The Estimated Purchase Price will be adjusted, if appropriate,
based upon an audit of the Closing Balance Sheet, certified by Auditors and made
at the Authority's expense.  Prior to commencement of such audit, the Authority
and HMA will agree on and discuss with Auditors the scope of the agreed upon
procedures applied to specific elements of the Closing Balance Sheet to be
performed by Auditors.  Subsequent to such audit, HMA and/or Ernst & Young LLP,
the certified public accountants regularly retained by HMA, will be permitted to
examine Auditors' work papers developed in connection with such audit.  The
Authority will cause Auditors to deliver to HMA, within 60 days after the
Effective Date, the Closing Balance Sheet together with Auditors' determination,
based on the Closing Balance Sheet, of the amount of the Purchase Price (all of
which will be annexed hereto as Schedule 2.6 subsequent to Closing).

          (b) The amount of the Purchase Price will be finally determined as
provided by this Section 2.6(b).  Within 30 days after receipt of the Closing
Balance Sheet and such determination of Auditors, HMA will deliver its written
objections thereto, if any, to the Authority.  If HMA fails to deliver any such
objections within such 30-day period, then Auditors' determination of the
Purchase Price

                                       7
<PAGE>
 
will be final and binding upon the parties for all purposes.  If HMA so delivers
any such objections and they are not resolved by mutual agreement within 30 days
following such delivery, then the Authority and HMA will each submit the
disputed determination to such independent certified public accounting firm as
the Authority and HMA may then mutually agree upon for computation or
verification in accordance with the provisions of this Agreement.  The results
of such accounting firm's report, which will be delivered within 60 days after
submission to such firm, will be final and binding upon the parties, and such
accounting firm's fees and expenses for such disputed determination will be
borne by the non-prevailing party or, in the event that each party prevails on
some of the issues in dispute, will be shared proportionately.

          (c) If the amount of the Purchase Price, as so finally determined,
exceeds the amount of the Estimated Purchase Price, then Sub will, within 15
days after such final determination, pay the amount of such excess to the
Authority in immediately available funds, and the parties will cause the Escrow
Account, including accrued interest, to be paid over to the Authority.  If the
amount of the Purchase Price, as so finally determined, is less than the amount
of the Estimated Purchase Price, then the parties will, within 15 days after
such final determination, cause the amount of such deficiency, together with
accrued interest thereon, to be paid out of the Escrow Account to Sub, and cause
the balance remaining in the Escrow Account, including the balance of accrued
interest, to be paid over to the Authority.

ARTICLE 3.  CLOSING

     3.1  CLOSING.  Subject to the satisfaction or waiver by the appropriate
party of all the conditions precedent to Closing specified in Articles 8 and 9,
Closing will take place at the offices of Williams, Box, Forshee & Bullard,
P.C., 522 Colcord Drive, Oklahoma City, Oklahoma 73102 (or such other place as
the parties may mutually agree) at 10:00 a.m., local time, on or before the
Effective Date.

     3.2  ACTIONS OF SUB AND HMA AT CLOSING.  At Closing, and unless otherwise
waived by the Authority, Sub and/or HMA will deliver to the Authority the
following:

          (a) the Lease, duly executed by Sub and by HMA;

          (b) $20,000,000 plus the Funded Depreciation Amount, in payment of the
     prepaid rent required by Section 4.1 of the Lease, delivered by wire
     transfer of immediately available funds to the account(s) designated by the
     Authority (which prepaid rent will be allocated among the Leased Assets as
     set forth on Schedule 3.2(b);

          (c) the Estimated Purchase Price, delivered by wire transfer of
     immediately available funds to the Escrow Account (which Estimated Purchase
     Price will be allocated among the Purchased Assets as set forth on Schedule
     3.2(c);

                                       8
<PAGE>
 
          (d) the amount necessary on the Effective Date to defease, pay or make
     sufficient provision for the future payment of (all as may be allowable by
     law) the principal balance and other costs necessary (including interest
     expense, consulting fees and Bond Counsel fees) to discharge the Tax-Exempt
     Debt, less the Funded Depreciation Amount, delivered by wire transfer of
     immediately available funds to the account(s) designated by the Authority
     (which may or may not be Authority accounts);

          (e) an Assumption Agreement, duly executed by Sub, pursuant to which
     Sub assumes the future payment and performance of the Assumed Liabilities;

          (f) copies of resolutions duly adopted by the Boards of Directors of
     Sub and of HMA, authorizing and approving their respective performance of
     the transactions contemplated hereby and by the Lease, and their respective
     execution and delivery of this Agreement, the Lease and the other documents
     described herein, each certified as true, complete and in full force and
     effect as of the Effective Date by appropriate officers of Suband HMA,
     respectively;

          (g) certificates of a duly authorized Vice President of HMA certifying
     that each covenant and agreement of Sub and HMA to be performed prior to or
     as of Closing pursuant to this Agreement has been performed in all material
     respects;

          (h) certificates of incumbency of the respective officers of Sub and
     HMA executing this Agreement, the Lease and the other documents described
     herein, each dated as of the Effective Date;

          (i) a certificate of existence and good standing of HMA from the State
     of Delaware, and a certificate of existence and good standing of Sub from
     the State of Oklahoma, each dated within 10 calendar days prior to the
     Effective Date;

          (j) the opinion of Sub's and HMA's counsel described in Section 9.2;
     and

          (k) such other instruments and documents as the Authority reasonably
     deems necessary to effect the transactions contemplated hereby and by the
     Lease.

     3.3  ACTIONS OF THE AUTHORITY AT CLOSING.  At Closing, and unless otherwise
waived by HMA or Sub, the Authority will deliver to Sub and HMA the following:

          (a) the Lease, duly executed by the Authority and duly consented to by
     the City;

          (b) exclusive possession of all of the Assets;

          (c) documents of transfer and assignment, duly executed by the
     Authority, conveying to Sub Good Title to all of the Purchased Assets,
     including all of the Authority's and the

                                       9
<PAGE>
 
     Hospital's right, title and interest in the Contracts, in each case subject
     only to Permitted Encumbrances;

          (d) copies of resolutions duly adopted by the Board of Trustees of the
     Authority, authorizing and approving the Authority's performance of the
     transactions contemplated hereby and by the Lease and its execution and
     delivery of this Agreement, the Lease and the other documents described
     herein, certified as true, complete and in full force and effect as of the
     Effective Date by an appropriate officer of the Authority;

          (e) certificates of the appropriate officers of the Authority
     certifying that each covenant and agreement of the Authority to be
     performed prior to or as of Closing pursuant to this Agreement has been
     performed in all material respects;

          (f) a certificate of incumbency of the officers of the Authority
     executing this Agreement, the Lease and the other documents described
     herein, dated as of the Effective Date;

          (g) the opinion of the Authority's counsel described in Section 8.2;
     and

          (h) such other instruments and documents as HMA reasonably deems
     necessary to effect the transactions contemplated hereby and by the Lease.

     3.4  PAYMENT OF TAX-EXEMPT DEBT.  At Closing, upon receipt of the amount
described in Section 3.2(d), the Authority will defease, pay or make sufficient
provision for the future payment of (all as may be allowable by law) the Tax-
Exempt Debt, and will apply the Hospital's Funded Depreciation to the payment
thereof.  HMA will be responsible for the bidding and acquisition of any
government securities necessary to accomplish such defeasement, payment or
provision, subject to the reasonable approval of the Authority's Bond Counsel,
Trustee Bank and Auditors.

ARTICLE 4.  REPRESENTATIONS AND WARRANTIES OF THE AUTHORITY

     As of the Effective Date, the Authority represents and warrants to Sub and
to HMA the following:

     4.1  ORGANIZATION AND AUTHORIZATION.  The Authority is a public trust
created under the laws of the State of Oklahoma.  The Authority has the
requisite power and authority to enter into this Agreement, the Lease and the
other documents contemplated hereby or thereby, perform its obligations
hereunder and thereunder, and conduct its business as now being conducted.
Without limiting the generality of the foregoing, at Closing the Authority will
have full and exclusive authority to convey to Sub a valid and fully enforceable
leasehold estate in the Leased Assets, including the Leased Assets owned by the
City, and to subject all of the Leased Assets to the provisions of this
Agreement and the Lease.

                                       10
<PAGE>
 
     4.2  ASSETS; TITLE.

          (a) The Assets, together with the Excluded Assets, constitute all
properties, assets and leasehold estates, real, personal and mixed, tangible and
intangible, comprising and employed in the operation of or associated with the
Hospital Facilities.

          (b) The Authority will bear all risk of loss, destruction or damage to
any of the Assets occurring prior to Closing, whether due to fire, accident or
other casualty, willful act, condemnation, riot, act of God or otherwise, and
neither Sub nor HMA will have any responsibility with respect thereto.

          (c) The City holds Good Title to all of the Leased Assets owned by it,
subject only to Permitted Encumbrances.  The Authority holds Good Title to all
of the Assets other than the Leased Assets owned by the City, subject only to
Permitted Encumbrances.  At Closing, the Authority will effectively vest in Sub
a valid and fully enforceable leasehold estate in all of the Leased Assets, and
transfer to Sub Good Title to all of the Purchased Assets, in each case subject
only to Permitted Encumbrances.  Without limiting the generality of the
foregoing, at or before Closing the Authority will cause to be removed all
security interests in or other liens or encumbrances (other than Permitted
Encumbrances) on any of the Assets.

          (d) The zoning classification of the Premises permits the use of the
Premises for the operation of the business of an acute care hospital and other
licensed health related activities, as the same are operated on the Effective
Date.  There are no violations of zoning laws or municipal ordinances regarding
zoning matters affecting the Premises.  There is no existing, pending or, to the
best of the Authority's knowledge, contemplated, threatened or anticipated
change in the zoning classification of the Premises or any part thereof.

     4.3  CONSENTS; ABSENCE OF CONFLICTS WITH OTHER AGREEMENTS, ETC.  The
Authority's execution, delivery and performance of this Agreement, the Lease and
the other documents contemplated hereby or thereby, and the consummation of the
transactions contemplated hereby and thereby:  (a) are within the Authority's
powers, are not in contravention of law or of the terms of its governing
instruments, and have been duly authorized by all appropriate action; (b) except
for the consent of the City in the form appended to the Lease, do not require
any approval or consent of, or filing with, any Governmental Entity which is
required by contract, law or the regulations of any Governmental Entity; (c)
will neither conflict with nor result in any material breach or contravention
of, nor permit the acceleration of the maturity of a material portion of, the
Assumed Liabilities, nor the creation of any lien, charge or encumbrance
affecting any of the Assets; (d) upon obtaining the consent of the City in the
form appended to the Lease, will not violate, conflict with or constitute on the
part of the Authority a breach of or a default under any existing statute, law,
rule or regulation of any Governmental Entity or any agreement, indenture,
mortgage or lease by which the Authority, the City, the Hospital Facilities or
the Assets may be subject; and (e) will not violate any judgment of any
Governmental Entity to which

                                       11
<PAGE>
 
the Authority, the City, the Hospital Facilities or the Assets may be subject.

     4.4  BINDING OBLIGATIONS.  This Agreement, the Lease and any other
agreements with HMA or Sub to which the Authority will become a party pursuant
hereto or thereto are and will constitute the valid and legally binding
obligations of the Authority, and are and will be enforceable against it in
accordance with the respective terms hereof or thereof, except as enforceability
may be restricted, limited or delayed by applicable bankruptcy or other laws
affecting creditors' rights generally and except as enforceability may be
subject to general principles of equity.

     4.5  FINANCIAL STATEMENTS.  The Authority has heretofore delivered to HMA,
and there are annexed hereto as Schedule 4.5, true and complete copies of the
Financial Statements.  The Financial Statements have been, and when prepared the
Closing Balance Sheet will have been, prepared in accordance with GAAP, applied
throughout the periods indicated on a basis consistent with the prior year's
audited statements (except as noted in the notes thereto), and conform (and will
conform) to GAAP and generally accepted accounting practices consistently
applied, except as set forth in Schedule 4.5.  Except as described in Schedule
4.5, the Closing Balance Sheet and the balance sheets comprising the Financial
Statements present fairly in all material respects the financial condition of
the Hospital Facilities at the dates indicated thereon, and the statements of
revenue and expenses comprising the Financial Statements present fairly in all
material respects the results of operations of the Hospital Facilities for the
periods indicated thereon.

     4.6  NO ADDITIONAL MATERIAL LIABILITIES.  The Authority has heretofore
delivered to HMA, and there is annexed hereto as Schedule 4.6, an accurate list
of all material liabilities of or with respect to the Hospital Facilities
existing on the Effective Date, not included in the Financial Statements, which
are of the kind and character required in financial statements prepared in
accordance with GAAP and which were incurred other than in the ordinary course
of business, whether accrued, absolute, contingent or otherwise.  Except as
disclosed in Schedules 4.5 or 4.6, neither the Authority nor the Hospital has
any material liabilities of any nature, whether accrued, absolute, contingent or
otherwise.  Without limiting the generality of the foregoing, although the lien
of the First Mortgage Bonds remains an encumbrance of record on the Assets until
July 1, 2001, the First Mortgage Bonds have been economically defeased and are
not a liability of the Authority or the Hospital.

     4.7  LICENSES.   The Hospital is duly licensed by the State of Oklahoma as
a 208-bed general acute care hospital.  The ancillary departments and other
operations thereof (included in the Hospital Facilities) that are required to be
specifically licensed are duly licensed by the appropriate state agencies.  To
the extent permitted by law, the Authority will effectively lease and transfer
to Sub under the Lease all Licenses and Permits and all other rights, privileges
and franchises relating to the operations or development of the Hospital
Facilities or the Assets, all of which are in good standing

                                       12
<PAGE>
 
and, to the best of the Authority's knowledge, not subject to meritorious
challenge.

     4.8  MEDICARE PARTICIPATION; ACCREDITATION.  The Hospital is qualified for
participation in the Medicare and Medicaid programs, has a current and valid
provider agreement with the Medicare and Medicaid programs, is currently
accredited by the Joint Commission on Accreditation of Health Care Organizations
and, except as set forth in Schedule 4.8, is in compliance in all material
respects with the conditions of participation in such programs and has received
all health planning approvals necessary for capital reimbursement on the Assets.

     4.9  REGULATORY COMPLIANCE.  Except as set forth in Schedule 4.9, the
Hospital Facilities are in compliance in all material respects with all
applicable statutes, rules, regulations and requirements of all Governmental
Entities having jurisdiction over the Hospital Facilities and their operations,
including the Internal Revenue Service and the Oklahoma State Department of
Health, and the Authority has timely filed all reports, data and other
information required to be filed with such Governmental Entities where a failure
to file timely would have a material adverse effect on the Hospital Facilities.
Except as set forth in Schedule 4.9, neither the Authority nor the Hospital has
received notice of a violation of any applicable ordinance or other law, order,
regulation or requirement, or notice of condemnation, lien, assessment or the
like, relating to any part of the Assets or the operation of the Hospital
Facilities.

     4.10 CONTRACTS.  The Authority has made available to HMA true and complete
copies of each of the Contracts.  Each of the Contracts constitutes the valid
and legally binding obligation of the Authority or the Hospital and is
enforceable against the Authority or the Hospital, as the case may be, in
accordance with its terms.  To the best of the Authority's knowledge, each of
the Contracts constitutes the valid and legally binding obligation of the other
party thereto and is enforceable against such party in accordance with its
terms.  Each of the Contracts constitutes the entire agreement between the
respective parties thereto relating to the subject matter thereof.  To the best
of the Authority's knowledge, in all material respects, all obligations required
to have been performed under the terms of the Contracts have been performed, no
act or omission has occurred or failed to occur which, with the giving of
notice, the lapse of time or both would constitute a default under any of the
Contracts, and each of the Contracts is in full force and effect without default
on the part of any party thereto.  Except as expressly set forth in Schedule
2.2, none of the Contracts requires consent to its assignment to and assumption
by Sub.  Where such consents are required, the Authority will use its best
efforts to obtain any required consents prior to Closing; provided, however,
that the Authority will not be required to make any payments to any third party
in order to obtain any such consent.  Except for the Contracts and any
agreements identified in Schedule 2.3 as Excluded Assets, there are not:  (a)
any contracts or commitments materially affecting the use or value of the
Hospital Facilities or any of the Assets; (b) any patent licensing agreements or
any other agreements, licenses or commitments with

                                       13
<PAGE>
 
respect to patents, patent applications, trademarks, trade names, service marks,
technical assistance, copyrights or the like affecting the Hospital Facilities;
(c) any collective bargaining agreements or other contracts or commitments to or
with any labor unions or other employee representatives or groups of employees
affecting or which could affect the Hospital Facilities; (d) any employment
contracts or any other contracts, agreements or commitments to or with
individual employees or agents affecting or which could affect the Hospital
Facilities; or (e) any contracts or commitments providing for payments based in
any manner on the revenues or profits of the Hospital Facilities.

     4.11 EQUIPMENT.  The Authority has heretofore delivered to HMA a
depreciation schedule listing, as of December 31, 1995, all of the equipment
included in Leased Assets.

     4.12 INSURANCE.  Annexed hereto as Schedule 4.12 is a list of the insurance
policies covering the ownership and operations of the Hospital Facilities and
the Assets, reflecting the policies' terms, the identity of insurers, the
amounts of coverage and the extent of coverage.  All of such policies are now
and will be until Closing in full force and effect on a claims made basis with
no premium arrearages.

     4.13 EMPLOYEE BENEFIT PLANS.  Except as set forth in Schedule 4.13, neither
the Authority nor the Hospital has nor ever has had any pension, profit sharing,
compensation, deferred compensation or other employee pension, health or welfare
benefit plan or arrangement relating to any one or more employees at, or the
operations of, the Hospital Facilities.  Any reporting, disclosure, funding or
other obligation, whether arising by law or contract, with respect to any such
plan or arrangement will be the sole responsibility of the Authority, and
neither Sub nor HMA will have any obligation with respect thereto, either before
or after Closing.

     4.14 EMPLOYEE RELATIONS.  Except as set forth in Schedule 4.14:  (a) there
is no pending or, to the best of the Authority's knowledge, threatened employee
strike, work stoppage or labor dispute; (b) no union representation effort is
under way respecting any employees at the Hospital Facilities; no collective
bargaining agreement exists or is currently being negotiated by the Authority or
the Hospital; no demand has been made for recognition by a labor organization by
or with respect to any employees at the Hospital Facilities; to the best of the
Authority's knowledge no union organizing activities by or with respect to any
employees at the Hospital Facilities is taking place; and none of the employees
at the Hospital Facilities is represented by any labor union or organization;
(c) there is no unfair practice claim against the Authority or the Hospital
before the National Labor Relations Board, nor any strike, dispute, slowdown or
stoppage pending or, to the best of the Authority's knowledge, threatened
against or involving the Hospital Facilities; and (d) there are no pending or,
to the best of the Authority's knowledge, threatened unfair labor practices
claims, equal employment opportunity claims, wage and hour claims, unemployment
compensation claims, workers' compensation claims or the like with respect to
the Hospital Facilities.

                                       14
<PAGE>
 
     4.15  LITIGATION OR PROCEEDINGS.  Annexed hereto as Schedule 4.15 is an
accurate list of all material litigation or proceedings with respect to the
Hospital Facilities, the Assets or the Assumed Liabilities to which the
Authority, the City or the Hospital is a party, except for collections
proceedings in which the Hospital is neither a defendant nor subject to a
material counterclaim.  Except to the extent set forth in Schedule 4.15, there
are no material claims, actions, suits or proceedings or investigations pending
or, to the best of the Authority's knowledge, threatened against or affecting
the Hospital Facilities, or the Authority or the City with respect to the
Hospital Facilities, at law or in equity, or before or by any Governmental
Entity.  Without limiting the generality of the foregoing, no action or
proceeding before any Governmental Entity has been instituted or, to the best of
the Authority's knowledge, threatened against the Authority or the City which
seeks to restrain or prohibit the transactions contemplated hereby or by the
Lease.

     4.16 SPECIAL FUNDS.  None of the Assets are subject to any liability in
respect of amounts received by the Authority, the City, the Hospital or others
for the purchase or improvement of the Assets or any part thereof under
restricted or conditioned grants or donations, including monies received under
the Public Health Service Act, 42 U.S.C. (S)291 et seq.

     4.17 MEDICAL STAFF MATTERS.  The Authority has heretofore provided to HMA
true, correct and complete copies of the bylaws and rules and regulations (if
any) of the medical staff of the Hospital.  Except as set forth in Schedule
4.17, there are no pending or, to the best of the Authority's knowledge,
threatened disputes with applicants, staff members or health professional
affiliates, and all appeal periods in respect of any medical staff member or
applicant against whom an adverse action has been taken have expired.

     4.18 SUBSEQUENT RESULTS.  Since December 31, 1995, and except as disclosed
in the Financial Statements or any other Schedule, or attributable to normal
seasonal fluctuation, there has not been:  (a) any material adverse change in
the operations, financial condition, assets, liabilities (contingent or
otherwise), income or business of or related to the Hospital Facilities; (b) any
material damage, destruction or loss (whether or not covered by insurance)
adversely affecting the Hospital Facilities or the Assets; (c) any material
labor dispute, law or regulation or any event or condition of any character
adversely affecting the operations of the Hospital Facilities; (d) any sale,
assignment, transfer or disposition of any item of plant, property or equipment
of the Hospital Facilities having a net book value in excess of $10,000 (other
than supplies), except in the ordinary course of business; or (e) any
transaction by the Authority or the City with respect to the Hospital Facilities
or any of the Assets outside the ordinary course of business (other than the
negotiation with HMA and Sub of the transactions contemplated hereby).

     4.19 ENVIRONMENTAL MATTERS.  HMA acknowledges that it may conduct, at its
option, either or both of the following prior to Closing:  (a) a Phase I
environmental assessment of the Premises, and (b) a Phase II environmental
assessment of the Premises (collectively,

                                       15
<PAGE>
 
the "ENVIRONMENTAL ASSESSMENT").  The Environmental Assessment will be provided
to the Authority and its counsel immediately upon receipt by HMA.  Except as
disclosed in Schedule 4.19 or the Environmental Assessment, to the best of the
Authority's knowledge, the Hospital Facilities are not in material violation of
any Environmental Laws.  Except as disclosed in Schedule 4.19 or the
Environmental Assessment, to the best of the Authority's knowledge, none of the
Hospital Facilities has Released any Hazardous Substances in a manner that has
materially violated any Environmental Laws, and there has been no such Release
by any previous owner or operator of the Premises.  Except as disclosed in
Schedule 4.19 or the Environmental Assessment, to the best of the Authority's
knowledge, none of the Hospital Facilities has (i) any underground storage
tanks, as defined in 42 U.S.C. (S)6991(1)(A)(I), whether empty, filled or
partially filled with any substance), or (ii) any asbestos or any material that
contains any hydrated mineral silicate, including chrysolite, amosite,
crocidolite, tremolite, anthophylite and/or actinolite, whether friable or non-
friable.  Except as disclosed in Schedule 4.19, neither the Authority, the City
nor the Hospital has received any request for information, notice or order
alleging that it may be a potentially responsible party under any Environmental
Laws for the investigation or remediation of a Release or threatened Release of
Hazardous Substances.  Except as disclosed in Schedule 4.19, there is no lien,
notice, litigation or threat of litigation relating to an alleged unauthorized
Release of any Hazardous Substance on, about or beneath the Premises (or any
portion thereof), or the migration of any Hazardous Substance to or from
property adjoining or in the vicinity of the Premises, or alleging any
obligation under Environmental Laws.  The Authority will immediately notify HMA
should the Authority receive any such request for information, notice or order,
or become aware of any lien, notice, litigation or threat of litigation relating
to an alleged unauthorized Release of any Hazardous Substance on, about or
beneath the Premises (or any portion thereof) or any other environmental
contamination or liability with respect to the Premises (or any portion
thereof).  The Hospital or the Authority holds all Environmental Permits
required in connection with the use of the Premises or the operation of the
Hospital Facilities and, to the extent permitted by law, the Authority will
effectively lease and transfer to Sub under the Lease all such Environmental
Permits, all of which are in good standing and, to the best of the Authority's
knowledge, not subject to meritorious challenge.

     4.20 TAXES.  The Authority or the Hospital has:  (a) timely filed or
extended all returns required to be filed by or in respect of the Hospital
Facilities with respect to all Taxes; (b) paid all Taxes shown to have become
due pursuant to such returns; and (c) paid all other Taxes for which a notice of
assessment or demand for payment has been received, if the due date therefor has
occurred.  Neither the Authority nor the Hospital has received any notice of any
proposed assessments of Taxes against or in respect of the Hospital Facilities,
or of any proposed adjustments to any tax returns filed by or in respect of the
Hospital Facilities.

     4.21 NO BROKER'S FEES.  The Authority has not employed any investment
banker, finder, broker, agent or other intermediary in

                                       16
<PAGE>
 
connection with the negotiation or consummation of this Agreement or the Lease
or of any of the transactions contemplated hereby or thereby as to which Sub or
HMA may have any liability for a broker's, finder's, financial advisory or
similar fee.

     4.22 DISCLOSURE.  To the Authority's best knowledge, the provisions of this
Agreement, the Lease, the Schedules and all other documents and information
furnished to HMA and its representatives by the Authority pursuant hereto, do
not include any untrue statement of a material fact nor omit to state any
material fact necessary in order to make the statements made herein and therein
not misleading.

ARTICLE 5.  REPRESENTATIONS AND WARRANTIES OF SUB AND HMA

     As of the Effective Date, Sub and HMA represent and warrant to the
Authority the following:

     5.1  ORGANIZATION AND AUTHORIZATION OF HMA.  HMA is a business corporation
duly organized and validly existing in good standing under the laws of the State
of Delaware.  HMA has the requisite corporate power and authority to enter into
this Agreement, the Lease and the other documents contemplated hereby and
thereby, perform its obligations hereunder and thereunder, and conduct its
business as now being conducted.

     5.2  ORGANIZATION AND AUTHORIZATION OF SUB.  Sub is a business corporation
duly organized and validly existing in good standing under the laws of the State
of Oklahoma.  Sub has the requisite power and authority to enter into this
Agreement, the Lease and the other documents contemplated hereby and thereby,
perform its obligations hereunder and thereunder, and conduct the business
conducted at the Hospital Facilities.

     5.3  CONSENTS; ABSENCE OF CONFLICTS WITH OTHER AGREEMENTS, ETC.  Sub's and
HMA's respective execution, delivery and performance of this Agreement, the
Lease and the other documents contemplated hereby and thereby, and the
consummation by Sub and HMA of the transactions contemplated hereby and thereby:
(a) are within Sub's and HMA's corporate powers, and are not in contravention of
law or of the terms of their respective certificates of incorporation or bylaws,
and have been duly authorized by all appropriate action; (b) will neither
conflict with nor result in any material breach or contravention of, or the
creation of any lien under, any indenture, agreement, lease, instrument or
understanding to which either Sub or HMA is a party or by which either is bound;
(c) except as otherwise expressly provided herein, do not require any approval
or consent of, or any declaration or filing with, any Governmental Entity which
is required by law or the regulations of any Governmental Entity; (d) will not
violate, conflict with or constitute on the part of Sub or HMA a breach of or a
default under any existing statute, law, rule or regulation of any Governmental
Entity or any agreement, indenture, mortgage or lease to which Sub or HMA may be
subject; and (e) will not violate any judgment of any Governmental Entity to
which Sub or HMA may be subject.

     5.4  BINDING OBLIGATIONS.  This Agreement, the Lease and any

                                       17
<PAGE>
 
other agreements with the Authority to which Sub or HMA will become a party
pursuant hereto or thereto are and will constitute the valid and legally binding
obligations of Sub and of HMA, respectively, and are and will be enforceable
against Sub and HMA, respectively, in accordance with the respective terms
hereof and thereof, except as enforceability against Sub or HMA may be
restricted, limited or delayed by applicable bankruptcy or other laws affecting
creditors' rights generally and except as enforceability may be subject to
general principles of equity.

     5.5  SUB'S REGULATORY COMPLIANCE.  Sub is in compliance in all material
respects with all applicable statutes, rules, regulations and requirements of
all Governmental Entities having jurisdiction over Sub and its operations,
including the Internal Revenue Service and the Oklahoma State Department of
Health, and Sub has timely filed all reports, data and other information
required to be filed by it on or before the Effective Date with such
Governmental Entities where a failure to file timely would have a material
adverse effect on Sub.  Sub has not received notice of a violation by it of any
applicable ordinance or other law, order, regulation or requirement.

     5.6  LITIGATION OR PROCEEDINGS.  No action or proceeding before any
Governmental Entity has been instituted or, to the best of HMA's and Sub's
knowledge, threatened against HMA or Sub which seeks to restrain or prohibit the
transactions contemplated hereby or by the Lease.

     5.7  NO BROKER'S FEES.  Neither Sub nor HMA has employed any investment
banker, finder, broker, agent or other intermediary in connection with the
negotiation or consummation of this Agreement or the Lease or of any of the
transactions contemplated hereby or thereby as to which the Authority may have
any liability for a broker's, finder's, financial advisory or similar fee.

     5.8  DISCLOSURE.  To Sub's and HMA's best knowledge, the provisions of this
Agreement and the Lease with respect to Sub and HMA, and all other documents and
information furnished to the Authority and its representatives by Sub or HMA
pursuant hereto, do not include any untrue statement of a material fact nor omit
to state any material fact necessary in order to make the statements made herein
and therein not misleading.

ARTICLE 6.  PRE-CLOSING ACTIONS BY THE AUTHORITY

     6.1  TRANSITION; ACCESS.  Prior to Closing, the Authority will have used
its best efforts to ensure a smooth transition of operations and control of the
Hospital Facilities to Sub.  Without limiting the generality of the foregoing,
the Authority will have afforded to the officers and authorized representatives
and agents of HMA (at HMA's expense) full and complete access to the medical
staff, employees and other personnel of the Hospital Facilities, and to the
Hospital Facilities, the Assets and the books and records of the Authority and
of the Hospital relating thereto, including the right to inspect the same and
conduct audits and verifications thereof; provided, however, that: (a) none of
the foregoing violates patient confidentiality or

                                       18
<PAGE>
 
impairs the privilege of confidentiality afforded by law or contract to the
Authority's books and records; (b) HMA has first provided reasonable notice of
such access and inspection and has conducted the same in such a manner as not to
interfere unreasonably with the operation of the Hospital Facilities or the
conduct of the Authority's business; and (c) no such inspections will have taken
place, and no employees or other personnel of the Hospital will have been
contacted by HMA, without HMA first having coordinating such inspection or
contact with the Hospital's Chief Executive Officer.

     6.2  OPERATIONS.  Since December 31, 1995 and prior to Closing, the
Authority and the Hospital:  (a) will have carried on the business of the
Hospital Facilities in substantially the same manner as has heretofore been
conducted and will have not made any material change in the personnel,
operations, finance, accounting policies or real or personal property of the
Hospital Facilities; (b) at the Authority's expense, will have maintained the
Assets and the Hospital Facilities and all parts thereof in good working order
and condition, ordinary wear and tear excepted; (c) will have performed all
obligations under agreements relating to or affecting the Assets, the Hospital
Facilities or the Hospital Facilities' operations; (d) will have taken all
reasonable actions necessary and appropriate to (i) vest in Sub a valid and
fully enforceable leasehold estate in all of the Leased Assets, and transfer to
Sub Good Title to all of the Purchased Assets, in each case subject only to
Permitted Encumbrances, and (ii) obtain appropriate releases, consents,
estoppels and other instruments as HMA may reasonably request; (e) will have
kept in full force and effect its insurance policies; and (f) will have
maintained and preserved the business organization of the Hospital Facilities
intact, retained employees at the Hospital Facilities (except for employment
terminations in accordance with past practices), maintained relationships with
physicians, consistent with the bylaws, rules and regulations of the medical
staff of the Hospital, maintained relationships with suppliers, customers and
others having business relations with the Hospital Facilities consistent with
the terms of such relationships, and taken such other actions as are necessary
to cause the smooth, efficient and successful transition of such business
operations and employee and other relations to Sub as of the Effective Date.

     6.3  NEGATIVE COVENANTS.  Since December 31, 1995 and prior to Closing, the
Authority will not, without the prior consent of HMA, have:  (a) amended or
terminated any of the Contracts, other than those identified in Schedule 6.3(a),
except in the ordinary course of business; (b) made offers of employment at the
Hospital Facilities to any persons for periods subsequent to the Effective Date,
entered into any contract or commitment, or incurred or agreed to incur any
liability not in the ordinary course of business, except for those offers,
contracts, commitments and liabilities currently under negotiation and
identified in Schedule 6.3(b); (c) increased the compensation payable or to
become payable or made a bonus payment to or otherwise entered into one or more
bonus agreements with any employee or agent, except in the ordinary course of
business in accordance with existing personnel policies or contracts or except
as identified in Schedule 6.3(c); (d) created or assumed any mortgage, pledge or
other lien or encumbrance upon any of the Assets, irrespec-

                                       19
<PAGE>
 
tive of when acquired, other than Permitted Encumbrances; (e) made or authorized
any purchase order or capital expenditure in excess of $10,000 except in the
ordinary course of business or except as identified in Schedule 6.3(e); (f)
sold, assigned or otherwise transferred or disposed of any property, plant or
equipment (other than supplies), except in the ordinary course of business; or
(g) taken any action outside the ordinary course of business that would
materially affect the Assets or the operation of the Hospital Facilities.

     6.4  REGULATORY APPROVALS.  Prior to Closing, the Authority will have:  (a)
actively cooperated with Sub and HMA to obtain, as promptly as practicable, all
approvals, authorizations and clearances of Governmental Entities required of it
to consummate the transactions contemplated hereby and by the Lease; and (b)
provided such other information and communications to Governmental Entities as
such Governmental Entities may have reasonably requested.

     6.5  ADDITIONAL FINANCIAL INFORMATION.  Prior to Closing, the Authority
will have delivered to HMA true and complete copies of the unaudited balance
sheets and the related unaudited statements of revenues and expenses of the
Hospital (if any) for each month then ended subsequent to the date of the
Financial Statements, which will have been prepared from and in accordance with
the books and records of the Hospital and will fairly present in all material
respects the financial position and results of operations of the Hospital as of
the dates and for the periods indicated.

     6.6  CLOSING CONDITIONS.  Prior to Closing, the Authority will have used
its best efforts to cause the conditions specified in Articles 8 and 9 over
which the Authority has control to have been satisfied as soon as reasonably
practicable, but in all events before the Effective Date.

ARTICLE 7.  PRE-CLOSING ACTIONS BY SUB AND HMA

     7.1  REGULATORY APPROVALS.  Prior to Closing, Sub and HMA will have:  (a)
used their best efforts with the Authority's cooperation to obtain, as promptly
as practicable, all approvals, authorizations and clearances of Governmental
Entities required of them to consummate the transactions contemplated hereby and
by the Lease (i) permitting the transfer of the operating license for the
Hospital Facilities from the Authority to Sub pursuant hereto, and (ii) allowing
Sub to enter into the Lease and to operate the Hospital Facilities pursuant to
the terms thereof; and (b) provided such other information and communications to
Governmental Entities as such Governmental Entities may have reasonably
requested.

     7.2  CLOSING CONDITIONS.  Prior to Closing, Sub and HMA will have used
their best efforts to cause the conditions specified in Articles 8 and 9 over
which Sub and HMA have control to have been satisfied as soon as reasonably
practicable, but in all events before the Effective Date.

                                       20
<PAGE>
 
ARTICLE 8.  CONDITIONS PRECEDENT TO SUB'S AND HMA'S OBLIGATIONS

     This Agreement is executed by Sub and HMA subject to satisfaction, on or
before the Effective Date, of all of the conditions precedent set forth in this
Article 8, any of which may be waived in writing by HMA.  In the event of the
failure of any of such conditions precedent and the absence of a written waiver
thereof by HMA, this Agreement will, upon notice from HMA to the Authority,
thereupon become void and of no effect.

     8.1  REPRESENTATIONS, WARRANTIES AND COVENANTS.  The representations and
warranties of the Authority contained in this Agreement will be true on and as
of the Effective Date (or the date otherwise specified herein); and each and all
of the terms and conditions of this Agreement required to have been complied
with or performed by the Authority before Closing will have been duly complied
with or performed.

     8.2  OPINION OF THE AUTHORITY'S COUNSEL.  HMA will have received an opinion
from counsel to the Authority dated as of the Effective Date and addressed to
Sub and HMA, in form and substance satisfactory to HMA, to the effect that:  (a)
the Authority is a public trust created under the laws of the State of Oklahoma;
(b) the Authority has full power and authority to make, execute, deliver and
perform this Agreement and the Lease, and all corporate or governmental
proceedings required to be taken by the Authority to authorize its execution,
delivery and performance of this Agreement and the Lease, to lease, transfer and
deliver all of the Leased Assets to Sub as set forth in the Lease, and to sell,
convey, assign, transfer and deliver the Purchased Assets to Sub as set forth
herein, have been duly and properly taken; and without limiting the generality
of the foregoing, the Authority has full and exclusive authority to convey to
Sub a valid and fully enforceable leasehold estate in the Leased Assets,
including the Leased Assets owned by the City, and to subject all of the Leased
Assets to the provisions of the Lease; (c) this Agreement, the Lease and all
bills of sale, assignments and other instruments of conveyance, transfer and
sale delivered by the Authority hereunder or thereunder constitute the valid and
binding obligations of the Authority, enforceable against it in accordance with
their respective terms, except as enforceability against the Authority may be
restricted, limited or delayed by applicable bankruptcy or other laws affecting
creditors' rights and debtors' relief generally and except as enforceability may
be subject to general principles of equity; (d) the consent of the City to the
extent necessary to permit consummation of the transactions contemplated hereby
and by the Lease has been duly obtained; (e) neither the execution and delivery
of this Agreement or the Lease, nor the consummation of the transactions
contemplated hereby or thereby, nor compliance with and fulfillment of the terms
and conditions hereof or thereof will conflict with or result in a breach of the
terms, conditions or provisions of, or constitute a default under the governing
instruments of the Authority, or any material agreement or instrument known to
such counsel, including the City Lease, to which the Authority, the City or the
Hospital is a party or by which any of the Assets is bound; (f) to the best of
such counsel's knowledge, except for those that are immaterial to the

                                       21
<PAGE>
 
consummation of such transactions, no ungiven notice to, or unobtained consent,
authorization, approval or order of, any Governmental Entity required by
federal, Oklahoma or local law or regulation to be obtained by the Authority or
the City is required for the consummation of the transactions described herein
and in the Lease; (g) to the best of such counsel's knowledge, the consummation
by the Authority of the transactions described herein and in the Lease will not
violate or result in a breach or default under any law or regulation, or under
any order of any Governmental Entity; and (h) there are no claims, actions,
suits or proceedings pending or, to the best of such counsel's knowledge after
due inquiry, threatened against or affecting the Hospital Facilities, or the
Authority or the City with respect to the Hospital Facilities, at law or in
equity, before or by any Governmental Entity, except as disclosed in Schedule
4.15.  In rendering such opinion, such counsel may rely upon certificates of
governmental officials, and may place reasonable reliance upon certificates of
officers of the Authority or the City.

     8.3  PRE-CLOSING CONFIRMATIONS.  HMA will have obtained documentation or
other evidence reasonably satisfactory to it that HMA and, to the extent
applicable, Sub have:  (a) received approval from all Governmental Entities
whose approval is required to complete the transactions contemplated hereby and
by the Lease; (b) received confirmation from the appropriate Governmental
Entities as to all hospital licensure matters and reasonable confirmation from
all other applicable licensure agencies that upon Closing all licenses required
by law to operate the Hospital Facilities as currently operated will be
transferred to or reissued in the name of Sub; and (c) obtained reasonable
assurances that Medicare and Medicaid certification of the Hospital Facilities
for its operation by Sub will be effective upon the Lease Commencement Date and
that Sub may participate in and receive reimbursement from such programs
effective upon the Lease Commencement Date.

     8.4  ACTIONS OR PROCEEDINGS.  No action or proceeding before any
Governmental Entity will have been instituted and remain in effect seeking to
restrain or prohibit the transactions contemplated hereby or by the Lease; and
no Governmental Entity will have taken any other action or made any request of
the Authority, the City, Sub or HMA as a result of which HMA reasonably and in
good faith deems it inadvisable to proceed with the transactions contemplated
hereby or by the Lease.

     8.5  LEASEHOLD TITLE INSURANCE MATTERS.

          (A) Within 10 days prior to the Effective Date, the Authority will
have delivered to Sub:  (i) a title commitment, obtained at Sub's expense,
issued by First American Title Insurance Company, satisfactory to Sub, that as
of the Lease Commencement Date, the City and the Authority, as their respective
interests may appear, have Good Title to the Premises, and that the Premises are
free and clear of all liens, encumbrances, charges, assessments, taxes,
easements, restrictions and stipulations, except for Permitted Encumbrances (the
"TITLE COMMITMENT"); and (ii) a recent instrument survey map, obtained at the
Authority's expense, prepared by a duly licensed

                                       22
<PAGE>
 
land surveyor acceptable to First American Title Insurance Company, prepared and
certified in accordance with generally accepted professional standards, with
respect to all of the Premises.

          (b) Sub will have obtained a leasehold title policy for the Premises,
in the form and containing such endorsements as Sub requires, and satisfactory
to Sub in its sole discretion.  Any survey defect or encroachment or violation
of easements or building lines from or onto the Premises, other than Permitted
Encumbrances, will have been cured or insured over pursuant to an endorsement
satisfactory to or waived by Sub.  Any liens that are not Permitted Encumbrances
will have been deleted from the leasehold title policy.  Such leasehold title
policy will be in an amount equal to the leasehold value of the Premises as
reasonably specified by Sub, insuring that Sub is vested with a valid leasehold
interest subject only to Permitted Encumbrances.

          (c) The Authority will have delivered to Sub a legal opinion,
satisfactory to Sub, that the Premises are in compliance with all zoning and
land use laws, ordinances and regulations, and all local building codes.

     8.6  NO ADVERSE CHANGE.  Prior to the Effective Date there will not have
been the occurrence or discovery of any event, condition or change in the
operations, financial condition, assets, liabilities (contingent or otherwise),
income or business of or related to the Hospital Facilities that materially
adversely impairs the use or value of any of the Assets or the Hospital
Facilities, and no litigation, administrative proceeding, audit or investigation
will have been initiated which, if concluded adversely, might reasonably be
expected to cause such an event, condition or change.

     8.7  OTHER INSTRUMENTS AND DOCUMENTS.  The Authority will have delivered to
Sub and HMA each of the instruments and documents required by Section 3.3.

ARTICLE 9.  CONDITIONS PRECEDENT TO THE AUTHORITY'S OBLIGATIONS

     This Agreement is executed by the Authority subject to satisfaction, on or
before the Effective Date, of all of the conditions precedent set forth in this
Article 9, any of which may be waived in writing by the Authority.  In the event
of the failure of any of such conditions precedent and the absence of a written
waiver thereof by the Authority, this Agreement will, upon notice from the
Authority to HMA, thereupon become void and of no effect.

     9.1  REPRESENTATIONS, WARRANTIES AND COVENANTS.  The representations and
warranties of Sub and HMA contained in this Agreement will be true as of the
Effective Date (or the date otherwise specified herein); and each and all of the
terms and conditions of this Agreement required to be complied with or performed
by Sub or HMA before Closing will have been duly complied with and performed.

     9.2  OPINION OF SUB'S AND HMA'S COUNSEL.  The Authority will have received
from the Senior Vice President and General Counsel of HMA an

                                       23
<PAGE>
 
opinion dated as of the Effective Date and addressed to the Authority, in form
and substance satisfactory to the Authority, to the effect that:  (a) HMA is
duly organized and validly existing in good standing under the laws of the State
of Delaware; (b) Sub is duly organized and validly existing in good standing
under the laws of the State of Oklahoma; (c) each of Sub and HMA has full power
and authority to make, execute, deliver and perform this Agreement and the
Lease, and all corporate proceedings required to be taken by each of Sub and HMA
to authorize its execution, delivery and performance of this Agreementand the
Lease have been duly and properly taken; (d) this Agreement, the Lease and the
Assumption Agreement constitute the valid and binding obligations of Sub and of
HMA, enforceable against Sub and HMA in accordance with their respective terms,
except as enforceability against Sub or HMA may be restricted, limited or
delayed by applicable bankruptcy or other laws affecting creditors' rights and
debtors' relief generally and except as enforceability may be subject to general
principles of equity; (e) to the best of such counsel's knowledge, except for
those that are immaterial to the consummation of such transactions, no ungiven
notice to, or unobtained consent, authorization, approval or order of, any
Governmental Entity required by federal or Oklahoma law to be obtained by Sub or
HMA is required for the consummation by Sub or HMA of the transactions described
herein; and (f) to the best of such counsel's knowledge, the consummation by Sub
and by HMA of the transactions described herein will not violate or result in a
breach or default under any law or regulation, or under any order of any
Governmental Entity.  In rendering such opinion, such counsel may rely upon
certificates of governmental officials, and may place reasonable reliance upon
certificates of officers of Sub and of HMA and opinions of Oklahoma counsel.

     9.3  PRE-CLOSING CONFIRMATIONS.  The Authority will have obtained
documentation or other evidence reasonably satisfactory to it that the Authority
has:  (a) received approval from all Governmental Entities whose approval is
required to complete the transactions contemplated hereby and by the Lease; and
(b) received confirmation from appropriate Governmental Entities as to all
hospital licensure matters and reasonable confirmation from all other applicable
licensure agencies that upon Closing all licenses required by law to operate the
Hospital Facilities as currently operated will be transferred to or reissued in
the name of Sub.

     9.4  ACTIONS OR PROCEEDINGS.  No action or proceeding before any
Governmental Entity will have been instituted or threatened to restrain or
prohibit the transactions contemplated hereby or by the Lease; and no
Governmental Entity will have taken any other action or made any request of the
Authority, the City, Sub or HMA as a result of which the Authority reasonably
and in good faith deems it inadvisable to proceed with the transactions
contemplated hereby or by the Lease.

     9.5  OTHER INSTRUMENTS AND DOCUMENTS.  HMA and/or Sub will have delivered
to the Authority each of the instruments and documents required by Section 3.2.

                                       24
<PAGE>
 
ARTICLE 10.  INDEMNIFICATION

     10.1 INDEMNIFICATION BY HMA.  To the extent provided in this Article 10,
and except for matters as to which the Authority is obligated to indemnify Sub
and HMA as provided in Section 10.2, from and after the Effective Date HMA and
Sub, jointly and severally, will indemnify, protect, defend and hold harmless
the Authority and its trustees and officers from and against:

          (a) any Losses suffered by the Authority arising out of the failure of
     Sub to satisfy fully and in a timely fashion all of the Assumed
     Liabilities;

          (b) any Losses suffered by the Authority arising out of (i) any act of
     commission or omission of Sub or of HMA, or their respective employees,
     officers, agents or independent contractors, after the Effective Date, or
     (ii) the use, operation or maintenance of the Hospital Facilities or any of
     the Assets after the Effective Date (unless such Losses relate solely to
     the City's or the Authority's ownership of the Leased Assets, or the
     Authority's operation of the Hospital Facilities or any of the Assets prior
     to the Effective Date), of any kind or nature whatsoever, including any
     Medicare, Medicaid or any other third party payor claim relating to any
     period after the Effective Date, but excluding any Losses relating to any
     employee benefit plan, agreement or arrangement entered into by the
     Authority or the Hospital;

          (c) any Losses suffered by the Authority arising out of or resulting
     from any misrepresentation, breach of warranty or breach or nonfulfillment
     of any covenant or agreement on the part of Sub or HMA contained in this
     Agreement;

          (d) any Losses suffered by the Authority arising out of or resulting
     from any breach or nonfulfillment of any covenant or agreement on the part
     of Sub or HMA contained in the Lease; and

          (e) all Losses (if any) suffered by the Authority in respect of any
     gain on the lease of the Leased Assets to be paid to Medicare or Medicaid.

     10.2 INDEMNIFICATION BY THE AUTHORITY.  To the extent provided in this
Article 10, and except for matters as to which HMA or Sub is obligated to
indemnify the Authority as provided in Section 10.1, from and after the
Effective Date the Authority will indemnify, protect, defend and hold harmless
Sub and HMA, and their respective directors and officers, to the extent
permitted by Oklahoma law, from and against:

          (a) any Losses suffered by Sub or HMA arising out of (i) any
     liability, obligation, claim against or contract of the Authority or the
     Hospital incurred prior to the Effective Date, (ii) any act of commission
     or omission of the Authority or the Hospital, or their respective
     employees, officers, agents or independent contractors, prior to the
     Effective Date, or

                                       25
<PAGE>
 
     (iii) the use, operation or maintenance of the Hospital Facilities or any
     of the Assets prior to the Effective Date, of any kind or nature
     whatsoever, which is not an Assumed Liability;

          (b) any Losses suffered by Sub or HMA arising out of or resulting from
     any misrepresentation, breach of warranty or breach or nonfulfillment of
     any covenant or agreement on the part of the Authority contained in this
     Agreement;

          (c) any Losses suffered by Sub or HMA arising out of or resulting from
     any breach or nonfulfillment of any covenant or agreement on the part of
     the Authority contained in the Lease; and

          (d) any Losses suffered by Sub or HMA arising out of or resulting from
     the First Mortgage Bonds or the liens and encumbrances related thereto.

     10.3 INDEMNIFICATION PROCEDURE.

          (a) As used in this Article 10, "Losses" include only losses actually
paid or incurred, and does not include:  (i) any amounts recovered from any
surety, insurance carrier or third party obligor, or the cost of maintaining any
surety or insurance policies, and no right of subrogation against the
Indemnifying Party will accrue hereunder to or for the benefit of any surety,
insurance company or any third party; (ii) any incidental or consequential
damages that the Indemnified Party may suffer; or (iii) any cost or expense
previously counted in determining Losses.  The Indemnified Party agrees to
submit in a timely manner to any applicable surety, insurance carrier or third
party obligor all claims for indemnifiable Losses for which such entity may have
liability.

          (b) As a condition precedent to a claim under this Article 10, a party
seeking indemnification hereunder (the "INDEMNIFIED PARTY") will promptly give
to the party from whom indemnity is sought (the "INDEMNIFYING PARTY") notice of
any matter which the Indemnified Party has determined has given or could give
rise to a right of indemnification under this Agreement or the Lease, which
notice will specify in reasonable detail the nature of the claim, the basis for
indemnification and the amount and nature of the Losses for which
indemnification is sought.  If a claim by a third party is made against an
Indemnified Party and the Indemnified Party intends to seek indemnity hereunder
with respect thereto, the Indemnified Party will promptly (and in any case
within 30 days of such claim being formally made) give the Indemnifying Party
notice of such claim.  If and to the extent that the Indemnifying Party does
not, within 20 days after receipt of such notice, object, then the Indemnifying
Party will have 30 days after receipt of such notice to pay the Losses specified
in the notice or to assume and control the defense of such third-party claim at
its expense and through counsel of its choice reasonably satisfactory to the
Indemnified Party.  If the Indemnifying Party elects not to defend against such
claim, then it will promptly so notify the Indemnified Party and, in such event,
the Indemnified Party

                                       26
<PAGE>
 
will then be entitled, at its option, to assume and control the defense of such
claim at its expense and through counsel of its choice.  In such event, if it is
finally determined that the Indemnifying Party failed to assume the defense of a
claim for which it is liable hereunder, then the expense of defending such claim
will be borne by the Indemnifying Party.  If the Indemnifying Party exercises
its right to undertake the defense against any such claim as herein provided,
the Indemnified Party will cooperate with the Indemnifying Party in such defense
and make available to the Indemnifying Party all pertinent records, materials
and information in its possession or under its control relating thereto as is
reasonably requested by the Indemnifying Party.  No claim that is being assumed
and defended in good faith by the Indemnifying Party will be settled by the
Indemnified Party without the consent of the Indemnifying Party.  Payment of
Losses will be made within 15 days after final determination of a claim.

          (c) The Indemnifying Party will be subrogated to any and all defenses,
claims and setoffs which the Indemnified Party asserted or could have asserted
against the third party making a claim.  The Indemnified Party will execute and
deliver to the Indemnifying Party such documents as may be reasonably necessary
to establish by way of subrogation the ability and right of the Indemnifying
Party to assert such defenses, claims and setoffs.

ARTICLE 11.  FURTHER COVENANTS

     11.1 TERMINATING COST REPORTS.  Following the Effective Date, Sub and HMA
will fully assist the Authority to properly prepare and timely file all
terminating cost reports, claims and other reports and documentation required by
law or contract to be filed by the Medicare, Medicaid or other third-party payor
programs in respect of the Hospital Facilities for operations prior to the
Effective Date or as a result of the consummation of the transactions
contemplated hereby or by the Lease.  Notwithstanding the foregoing, the
Authority will be solely responsible for the contents of all such reports,
claims and documentation.  Upon completion thereof, the Authority will promptly
execute and file all such reports, claims and documentation.

     11.2 INSURANCE COVERAGE.  For a period of eight years following the
Effective Date, the Authority will maintain, at its own expense, "tail coverage"
for acts, errors and omissions of professional liability incurred at the
Hospital Facilities prior to the Effective Date.

     11.3 CONFIDENTIALITY.  From and after the Effective Date, Sub and HMA
(treated as one party for this purpose) and the Authority (each, the "FIRST
PARTY") will, and will use its best efforts to cause its Affiliates, employees,
representatives and agents to, hold in strict confidence all Confidential
Information of the other party (each, the "OTHER PARTY"), unless compelled to
disclose the same by judicial or administrative process or, in the opinion of
counsel, by other requirements of law; provided, however, that in either such
case the First Party will provide the Other Party with prompt prior notice
thereof so that the Other Party may seek a protective order or other

                                       27
<PAGE>
 
appropriate remedy and/or waive compliance with the provisions of this Section
11.3.  In the event that such protective order or other remedy is not obtained,
or the Other Party waives compliance with the provisions hereof, the First Party
will furnish only that portion of Confidential Information which, in the written
opinion of the First Party's counsel, is required, and the First Party will
exercise best efforts to obtain reliable assurance that confidential treatment
will be accorded such of the disclosed Confidential Information as the Other
Party so designates.  The First Party will not otherwise disclose Confidential
Information to any person, except with the consent of the Other Party.  For the
purposes hereof, "CONFIDENTIAL INFORMATION" means all information of any kind
concerning the Other Party or any of its affiliates, obtained directly or
indirectly from the Other Party or any of its affiliates, employees,
representatives or agents in connection with the transactions contemplated
hereby or by the Lease, except information (a) ascertainable or obtained from
public or published sources, (b) received from a third party not known by the
First Party to be under an obligation to keep such information confidential, (c)
which is or becomes known to the public (other than through a breach of this
Agreement), or (d) which was in the First Party's possession prior to disclosure
thereof to the First Party and which was not subject to any obligation to keep
such information confidential.  The First Party recognizes that any breach of
the provisions of this Section 11.3 would result in irreparable harm to the
Other Party and its affiliates and, therefore, that the Other Party will be
entitled to an injunction to prohibit any such breach or anticipated breach,
without the necessity of posting a bond, cash or otherwise, in addition to all
of its other legal and equitable remedies.

     11.4 PUBLICITY.  From and after the Effective Date, each party will use its
best efforts to obtain from the other party (treating Sub and HMA as one party
for this purpose) prior approval of all press releases and other public
communications with respect to the transactions contemplated hereby or by the
Lease and the method of release thereof.  In this regard, HMA acknowledges that
the Authority is a public body subject to laws with respect to open meetings and
access to public information, and the Authority acknowledges that HMA's capital
stock is publicly traded and listed on the New York Stock Exchange and that HMA
has obligations of public disclosure of material information in a timely manner.

     11.5 COSTS OF TRANSACTION.  Whether or not the transactions contemplated
hereby or by the Lease are consummated, and except as otherwise expressly
provided herein or in the Lease, each party will bear its own fees, expenses and
disbursements, and those of its Affiliates, agents, representatives,
accountants, counsel and investment bankers, incurred in connection with the
subject matter hereof.

     11.6 PRESERVATION OF BOOKS AND RECORDS.  Until the later to occur of (a)
the final adjudication of any dispute or investigation arising out of the
business, operations or affairs of the Hospital Facilities before the Effective
Date, or (b) 60 days following the running of applicable statutes of
limitations, Sub will maintain in the ordinary course of business all books and
records of the Hospital Facilities

                                       28
<PAGE>
 
constituting a part of the Assets which relate to the pre-Closing business,
operations and affairs of the Hospital Facilities, and the Authority will
maintain in the ordinary course of business all such books and records not
constituting a part of the Assets, in each case to the extent reasonably
necessary in connection with any tax, Medicare or Medicaid or other liability or
matter for any period ending on or before the Effective Date.  After the
expiration of such period, neither Sub nor the Authority will destroy any of
such books or records without giving the other the opportunity, at the latter's
sole expense, to take possession thereof.

     11.7 COOPERATION.  The parties will pursue and perform with all due
diligence all acts, applications, authorizations and consents necessary or
appropriate to the fulfillment of the provisions of this Agreement and the
Lease, and will execute any and all documents incident thereto.  In addition,
for five years following the Effective Date, each party (treating Sub and HMA as
one party for this purpose) will, upon reasonable notice, during normal business
hours, at the expense of the requesting party, only to the extent necessary to
facilitate the transactions contemplated hereby or by the Lease, audits,
compliance with governmental requirements and regulations and the prosecution or
defense of third-party claims, and only to the extent that it does not
materially interfere with its business operations:  (a) afford to the
representatives of the other, including its counsel and accountants, full and
complete access to such records and information as may be available relating to
the Assets and the Hospital Facilities for periods prior and subsequent to the
Effective Date, and full and complete access to its officers and employees; and
(b) cooperate with, and use its reasonable best efforts to cause its officers
and employees to cooperate with, the other and with appropriate Governmental
Entities and third parties, in furnishing information, evidence, testimony and
other reasonable assistance.

ARTICLE 12.  IN GENERAL

     12.1 ENFORCEMENT EXPENSES.  Except as otherwise expressly provided herein,
in the event any party elects to incur legal expenses to enforce, defend or
interpret any provision of this Agreement as between it and the other party, the
prevailing party will be entitled to recover from the other party the amount of
such legal expenses, including attorneys' fees, costs and necessary
disbursements, in addition to any other relief to which such party will be
entitled.

     12.2 NOTICES.  Any notice, demand or communication required, permitted or
desired to be given hereunder will be in writing and will be deemed effectively
delivered when personally delivered, when actually received by telegraphic or
other electronic means (including telecopy and telex) or overnight courier, or
five days after being deposited in the United States mail, with postage prepaid
thereon, by certified or registered mail, return receipt requested, addressed as
follows:

                                       29
<PAGE>
 
IF TO THE AUTHORITY:     Midwest City Memorial Hospital Authority
                         c/o The City of Midwest City
                         Post Office Box 10570
                         Midwest City, OK 73140-1570
                         Attention: Secretary

WITH A COPY TO:          Buchanan Ingersoll P.C.
                         101 East Kennedy Blvd., Suite 1030
                         Tampa, FL 33602
                         Attention:  James J. Kennedy, III, Esq.

IF TO SUB OR TO HMA:     Health Management Associates, Inc.
                         5811 Pelican Bay Boulevard, Suite 500
                         Naples, FL 33963-2710
                         Attention: William J. Schoen
                         Chairman, President and Chief Executive
                         Officer

WITH A COPY TO:          Health Management Associates, Inc.
                         5811 Pelican Bay Boulevard, Suite 500
                         Naples, FL 33963-2710
                         Attention: Robb L. Smith, Esq.
                         Senior Vice President and General Counsel

or to such other address, and to the attention of such other person as any party
may designate by notice delivered in like manner.

     12.3 SCHEDULES AND OTHER INSTRUMENTS.  Each Schedule, each certificate
provided hereunder and each written disclosure required hereby is incorporated
by reference into this Agreement and will be considered a part hereof as if set
forth herein in full; provided, however, that information set forth on any
Schedule, certification or written disclosure constitutes a representation and
warranty of the party providing the same, and not the mutual agreement of the
parties as to the facts therein stated.  Any Schedule may be amended after the
Effective Date by mutual agreement of HMA and the Authority.

     12.4 SURVIVAL.  Except for the agreements and covenants contained herein
which by their terms are to be performed by the respective parties as a
condition to Closing, the respective representations, warranties, agreements and
covenants of the parties contained in this Agreement will survive the Closing.

     12.5 CHOICE OF LAW.  This Agreement will be governed by and construed in
accordance with the laws of the State of Oklahoma without regard to its
principles of conflicts of laws.

     12.6 BENEFIT.  Subject to express provisions herein to the contrary, this
Agreement will inure to the benefit of and be binding upon the parties hereto
and their respective legal representatives, successors and permitted assigns.

     12.7 WAIVERS AND CONSENTS.  Any waiver of any provision of this Agreement
and any consent given hereunder must be in writing signed

                                       30
<PAGE>
 
by the party sought to be bound.  The waiver by any party of a breach or
violation of any provision of this Agreement will not operate as, or be
construed to constitute, a waiver of any subsequent breach or violation of the
same or any other provision hereof.  No delay or failure on the part of any
party in exercising or enforcing any right, power or privilege hereunder will
operate as a waiver thereof, nor will any single or partial exercise of any
right, power or privilege preclude any other or further exercise of any other
right, power or privilege.

     12.8 SEVERABILITY.  In the event any provision of this Agreement is held to
be invalid, illegal or unenforceable for any reason and in any respect, such
invalidity, illegality or unenforceability will in no event affect, prejudice or
disturb the validity of the remainder of this Agreement, which will be and
remain in full force and effect, enforceable in accordance with its terms.

     12.9 INFERENCES.  Inasmuch as this Agreement is the result of negotiations
between sophisticated parties of equal bargaining power represented by counsel,
no inference in favor of or against any party will be drawn from the fact that
any portion of this Agreement has been drafted by or on behalf of such party.

     12.10     ENTIRE AGREEMENT.  This Agreement and the Lease supersede all
previous agreements and constitute the entire agreement of whatsoever kind or
nature existing between the parties representing the within subject matter, and
no party will be entitled to benefits other than those specified herein and
therein.  The parties specifically acknowledge that in entering into and
executing this Agreement, the parties rely solely upon the representations and
agreements contained herein and therein and no others.  All prior
representations or agreements, whether written or oral, not expressly referenced
herein are superseded unless and until made in writing and signed by the
Authority, Sub and HMA.

     12.11     AMENDMENT.  This Agreement may be amended, and the terms hereof
may be modified, only by a writing executed by each of the parties hereto, and
any matter referred to herein as mutually agreed to or designated by the parties
must be evidenced by such a writing.

     12.12     COUNTERPARTS.  This Agreement, and any document or instrument
required or permitted hereunder, may be executed in counterparts, each of which
will be deemed an original and all of which together will constitute but one and
the same instrument.

                                       31
<PAGE>
 
     IN WITNESS WHEREOF, the parties have caused this Agreement to be executed
by their authorized officers, all as of the date and year first above written.

                         MIDWEST CITY MEMORIAL HOSPITAL AUTHORITY,
                         AN OKLAHOMA PUBLIC TRUST


                         By:___________________________

                         Title:________________________

                         MIDWEST CITY HMA, INC.


                         By:___________________________

                         Title:________________________


                         HEALTH MANAGEMENT ASSOCIATES, INC.


                         By:____________________________

                         Title:_________________________

                                       32
<PAGE>
 
                           LIST OF OMITTED SCHEDULES


Schedule 2.2        Contracts
Schedule 2.3        Excluded Assets
Schedule 2.6        Closing Balance Sheet; Post-Closing Adjustment
Schedule 3.2(b)     Allocation on Prepaid Rent
Schedule 3.2(c)     Allocation on Purchase Price
Schedule 4.2        Permitted Encumbrances
Schedule 4.5        Financial Statements
Schedule 4.6        Additional Material Liabilities
Schedule 4.8        Medicare Participation; Accreditation
Schedule 4.9        Regulatory Compliance
Schedule 4.12       Insurance
Schedule 4.13       Employee Benefit Plans
Schedule 4.14       Employee Relations
Schedule 4.15       Litigation or Proceedings
Schedule 4.17       Medical Staff Matters
Schedule 4.19       Environmental Matters
Schedule 6.3(a)     Amended or Terminated Contracts
Schedule 6.3(b)     Contracts Under Negotiation
Schedule 6.3(c)     Bonus
Schedule 6.3(e)     Purchase Orders and Capital Expenditures

                                       33
<PAGE>
 
                                LEASE AGREEMENT


                               DATED MAY 21, 1996


                                     AMONG


                   MIDWEST CITY MEMORIAL HOSPITAL AUTHORITY,
                            AN OKLAHOMA PUBLIC TRUST


                                      AND


                             MIDWEST CITY HMA, INC.


                                      AND


                       HEALTH MANAGEMENT ASSOCIATES, INC.
<PAGE>
 
                               TABLE OF CONTENTS
 
 

ARTICLE 1.  DEFINITIONS                                         1
       1.1  Definitions......................................   1
       1.2  Interpretation...................................   3
 
ARTICLE 2.  LEASE OF LEASED ASSETS                              3
       2.1  Lease of Leased Assets...........................   3
       2.2  Title to Leased Assets...........................   4
 
ARTICLE 3.  LEASE TERM                                          4
 
ARTICLE 4.  RENT                                                4
       4.1  Prepaid Rent.....................................   4
       4.2  Additional Rent..................................   4
 
ARTICLE 5.  USE AND CONTROL OF PREMISES                         5
       5.1  Use of Premises..................................   5
       5.2  Employees                                           5
       5.3  Medical Staff....................................   6
       5.4  Advisory Board...................................   6
       5.5  Charity Care.....................................   7
       5.6  Rates............................................   7
       5.7  Financial Information............................   7
       5.8  Contracts                                           7
       5.9  Compliance with Definitive Agreement.............   7
      5.10  Environmental Law Compliance.....................   7
      5.11  Operational Compliance by Lessee.................   9
 
ARTICLE 6.  INSURANCE                                           9
       6.1  In General.......................................   9
       6.2  Property Insurance...............................  10
       6.3  Liability Insurance..............................  10
       6.4  Mutual Releases and Waiver of Subrogation........  10
       6.5  Business Interruption Insurance..................  11
       6.6  Compliance by Lessee.............................  11
       6.7  Remedy for Noncompliance.........................  11
 
ARTICLE 7.  FIRE AND CASUALTY DAMAGE                           11
       7.1  Notice of Damage.................................  11
       7.2  Substantial Destruction..........................  11
       7.3  Partial Destruction..............................  11
       7.4  Obligations of Lessor............................  12
       7.5  Extension or Termination of Lease Term...........  12
 
ARTICLE 8.  UTILITIES                                          12
 
ARTICLE 9.  CONDITION OF PREMISES; CARE, ALTERATIONS, ETC.     12
       9.1  Condition of Premises............................  12
       9.2  Care of Premises.................................  12
       9.3  Alterations, Additions and Capital Improvements..  13
       9.4  Governmental Fees................................  13
       9.5  Lessor's Access..................................  13
 
 

                                      (i)
<PAGE>
 
ARTICLE 10.  LICENSURE AND GOVERNMENTAL APPROVAL               14
 
ARTICLE 11.  LIENS AND IMPOSITIONS                             14
      11.1  Encumbrance by Lessor............................  14
      11.2  Encumbrance by Lessee............................  14
      11.3  Impositions......................................  14
      11.4  Payments in Lieu of Taxes........................  15
 
ARTICLE 12.  QUIET ENJOYMENT                                   15
 
ARTICLE 13.  LESSEE'S DEFAULT AND REMEDIES THEREFOR            16
      13.1  Major Events of Default..........................  16
      13.2  Other Breaches of Lease..........................  17
      13.3  Indemnity for Breach.............................  17
      13.4  Causes Beyond a Party's Control..................  17
      13.5  Repossession of the Premises on Termination......  18
 
ARTICLE 14.  SURRENDER OF POSSESSION                           18
      14.1  Surrender of Leased Assets.......................  18
      14.2  Assignment and Assumption of Contracts...........  18
 
ARTICLE 15.  EMINENT DOMAIN                                    19
 
ARTICLE 16.  GUARANTY                                          19
      16.1  Guaranty                                           19
      16.2  Right of First Refusal...........................  19
 
ARTICLE 17.  ASSIGNMENT OR SUBLEASE                            21
      17.1  Assignment or Sublease...........................  21
      17.2  Required Exercise of First Refusal...............  21
 
ARTICLE 18.  IN GENERAL                                        22
      18.1  Time is of the Essence...........................  22
      18.2  Memorandum of Lease..............................  22
      18.3  Relationships of Parties.........................  22
      18.4  Rights and Remedies..............................  22
      18.5  Enforcement Expenses.............................  22
      18.6  Notices                                            22
      18.7  Choice of Law....................................  23
      18.8  Benefit                                            23
      18.9  Waivers and Consents.............................  23
     18.10  Severability.....................................  23
     18.11  Inferences.......................................  24
     18.12  Entire Agreement.................................  24
     18.13  Amendment                                          24
     18.14  Counterparts.....................................  24
 
   Consent...................................................  27
 
Table of Exhibits............................................  28

                                      (ii)
<PAGE>
 
                                LEASE AGREEMENT


     THIS LEASE AGREEMENT (this "LEASE") is made and entered into as of May 31,
1996, by and among MIDWEST CITY MEMORIAL HOSPITAL AUTHORITY, an Oklahoma public
trust ("LESSOR"), and MIDWEST CITY HMA, INC., an Oklahoma corporation
("LESSEE"), and HEALTH MANAGEMENT ASSOCIATES, INC., a Delaware corporation
("GUARANTOR").

     WHEREAS, Lessor operates certain facilities located in The City of Midwest
City, Oklahoma (the "CITY"), consisting of:  a general acute care hospital
licensed by the State of Oklahoma for 208 beds known as Midwest City Regional
Hospital (the "HOSPITAL"), together with all businesses owned or leased by the
Hospital or by Lessor in connection with the Hospital, including the Renaissance
Women's Center, home health services and offices, including all real property,
whether developed or undeveloped, associated with any of the foregoing (all of
which, including the Hospital, being hereinafter sometimes referred to
collectively as the "HOSPITAL FACILITIES");

     WHEREAS, certain of the assets comprising the Hospital Facilities are owned
by Lessor, and certain of the assets comprising the Hospital Facilities are
owned by the City and leased to Lessor pursuant to that certain Amended Lease
Agreement dated October 28, 1963, as amended, between the City and Lessor;

     WHEREAS, Lessor desires to lease or sublease, as the case may be, the
Hospital Facilities to Lessee, and Lessee desires to lease or sublease, as the
case may be, the Hospital Facilities from Lessor, all on the terms and
conditions set forth in this Lease, and in furtherance thereof, Lessor, Lessee
and Guarantor have entered into a certain Definitive Agreement of even date
herewith (the "DEFINITIVE AGREEMENT"); and

     WHEREAS, Lessee is the wholly-owned subsidiary of Guarantor, and Guarantor
has agreed to guarantee the performance of all of Lessee's obligations under
this Lease, as hereinafter set forth.

     NOW, THEREFORE, for and in consideration of the premises, and the
agreements, covenants, representations and warranties hereinafter set forth, and
other good and valuable consideration, the receipt and adequacy of which are
hereby acknowledged, the parties agree as follows:

ARTICLE 1.  DEFINITIONS

     1.1  DEFINITIONS.  In addition to the other definitions contained in the
heading paragraph and the Recitals of this Lease and in Section 1.2, the
following terms will, when used in this Lease, have the following respective
meanings (with any term used in this Lease and not so defined having the meaning
given it by Section 1.1 of the Definitive Agreement):

     "ACQUIROR" has the meaning given it by Section 16.2(a).

     "ADDITIONAL RENT" means all amounts required to be paid by Lessee, on or
after the Lease Commencement Date, under the terms of
<PAGE>
 
this Lease.

     "ADVISORY BOARD" has the meaning given it by Section 5.4.

     "DISPOSITION" has the meaning given it by Section 16.2(a).

     "DISPOSITION FAIR MARKET VALUE" has the meaning given it by Section
16.2(a).

     "EMPLOYEES" has the meaning given it by Section 5.2(a).

     "FIRST REFUSAL" means the right of first refusal provided by Section
16.2(a).

     "FIRST REFUSAL AGREEMENT" has the meaning given it by Section 16.2(c).

     "FIRST REFUSAL PRICE" has the meaning given it by Section 16.2(a).

     "FIRST REFUSAL TRANSACTION" has the meaning given it by Section 16.2(a).

     "IMPOSITIONS" means Taxes, excise, license and permit fees and other
assessments and charges of any kind or nature which may during the Lease Term be
assessed, levied, charged, confirmed or imposed by any Governmental Entity upon
or accrue or become a lien on (a) the Leased Assets (or any portion thereof) or
(b) the appurtenances thereto or the sidewalks or streets adjacent thereto.

     "IMPROVEMENTS" means all buildings, structures and other improvements of
every kind, including fixtures, landscaping, utility pipes and lines, roads,
driveways, fences, parking areas, contiguous and adjacent and entry rights,
owned or controlled by Lessor or by the City and located in and upon the
Premises.

     "INDEMNIFICATION" means the rights and obligations of indemnification
provided by Article 10 of the Definitive Agreement, to the extent and under the
terms and conditions therein provided.

     "INTEREST" has the meaning given it by Section 4.2(c).

     "LEASE" means this Lease Agreement as originally executed, together with
all amendments and modifications entered into pursuant to Section 18.13.

     "LEASE COMMENCEMENT DATE" means 12:01 a.m., local time, on June 1, 1996.

     "LEASE TERM" has the meaning given it by Article 3.

     "LEASE YEAR" means any twelve-month period commencing on the Lease
Commencement Date or on any of the next succeeding 29 anniversaries thereof.

                                       2
<PAGE>
 
     "LEGAL REQUIREMENTS" means, collectively, all orders, injunctions, writs,
statutes, rulings, rules, regulations, requirements, permits, certificates and
ordinances of any Governmental Entity (including the Occupational Safety and
Health Act, as amended, the Americans with Disabilities Act of 1990, as amended,
Environmental Laws and laws regarding Medical Waste), and the rules and
regulations promulgated under each of the foregoing, as in effect from time to
time.

     "MAJOR EVENT OF DEFAULT" has the meaning given it by Section 13.1.

     "OFFER DATE" has the meaning given it by Section 16.2(a).

     "PERMITTED PREMISES USE" means the operation of the business of an acute
care hospital and other licensed health related activities.

     "PREMISES" means, collectively: (a) the real property owned by the City
more particularly described on Exhibit A, together with all Improvements thereon
and interests therein, and all rights, privileges and easements appurtenant
thereto; and (b) the real property owned by Lessor more particularly described
on Exhibit B, together with all Improvements thereon and interests therein, and
all rights, privileges and easements appurtenant thereto.

     "REMEDIAL WORK" has the meaning given it by Section 5.10(b).

     1.2  INTERPRETATION.  In this Lease, unless the context otherwise requires:
(a) references to "Articles" and "Sections" are to the Articles or Sections of
this Lease, and references to "Exhibits" are to the Exhibits annexed hereto; (b)
references to any party to this Lease includes references to its respective
successors and permitted assigns; (c) references to a judgment includes
references to any order, writ, injunction, decree, determination or award of any
court or tribunal; (d) references to a person or entity includes references to
any individual, company, body corporate, association, partnership, firm, joint
venture, trust or Governmental Entity; (e) any of the terms defined herein may,
unless the context requires otherwise, be used in the singular or the plural
depending on the reference; (f) the masculine pronoun includes the feminine and
the neuter, as appropriate in the context; (g) with respect to any matter or
thing, the terms "including" or "includes" mean including but not limited to
such matter or thing; and (h) with respect to any party, the term "knowledge" of
such party means the actual knowledge of any trustee, director or executive
officer of such party.  The divisions of this Lease into articles, sections and
subsections and the use of captions and headings in connection therewith are
solely for convenience and have no legal effect in construing the provisions of
this Lease.

ARTICLE 2.  LEASE OF LEASED ASSETS

     2.1  LEASE OF LEASED ASSETS.  Effective on the Lease Commencement Date:
(a) Lessor hereby demises, rents and sublets exclusively to Lessee, and Lessee
hereby subleases, rents and hires from Lessor, all of Lessor's right, title and
interest in and to the Leased Assets

                                       3
<PAGE>
 
owned by the City; and (b) Lessor hereby demises, rents and lets to Lessee, and
Lessee hereby leases, rents and hires from Lessor, all of Lessor's right, title
and interest in and to all of the Leased Assets other than the Leased Assets
owned by the City.

     2.2  TITLE TO LEASED ASSETS.  Title to and ownership of the Leased Assets
will at all times remain with the City or Lessor, as their respective interests
may appear.  There is nothing contained in or contemplated by this Lease with
respect to the disposal or transfer of title or ownership of the Leased Assets
from the City or Lessor to Lessee or Guarantor at any time during or at the
conclusion of the Lease Term, and the transactions contemplated by this Lease
will not result in a gain or loss with respect to the Leased Assets.

ARTICLE 3.  LEASE TERM

     Subject to the terms and conditions hereof, the term of this Lease will
commence on the Lease Commencement Date and will continue for 30 consecutive
Lease Years thereafter (the "LEASE TERM").

ARTICLE 4.  RENT

     Lessee will pay Lessor, and Lessor will accept, as the total rent for the
Leased Assets, the amounts provided by this Article 4.

     4.1  PREPAID RENT.  Lessee will pay to Lessor, as prepaid rent for the
Leased Assets, the amount provided by Section 3.2(b) of the Definitive
Agreement, paid as therein provided.

     4.2  ADDITIONAL RENT.

          (a) During the first five Lease Years, Lessee will expend, as
Additional Rent, in the aggregate at least $10,000,000 for additional capital
equipment and Improvements to the Premises, making such capital expenditures to
renovate the Hospital Facilities and upgrade equipment as Lessee in its
reasonable judgment deems necessary to maintain the physical and service needs
of the Hospital Facilities.

          (b) During the Lease Term, Lessee will pay, as Additional Rent,
directly to the Governmental Entity imposing the same, the Impositions as and
when the same become due, and subject to the further provisions of Section 11.3.

          (c) During the Lease Term, any other obligation of Lessee which under
the terms of this Lease requires the payment of money to Lessor will be
construed to be Additional Rent.  All such Additional Rent that is payable to
Lessor (but not Additional Rent that is payable to a third party), including
reimbursement of Lessor in the amount of any Impositions or other obligations
voluntarily paid by Lessor once the same have become due, will bear interest
from the due date thereof at an annual rate equal to the "Prime Rate," adjusted
daily as the "Prime Rate" changes ("INTEREST").  "Prime Rate" means the "Prime
Rate" published in the "Money Rates" section of the Wall Street Journal
(Southeast Edition) or, if more than one "Prime Rate" is published on any day,
the lowest "Prime Rate" so published.  For

                                       4
<PAGE>
 
each day that no such publication is made, the "Prime Rate" will be as last
published.

ARTICLE 5.  USE AND CONTROL OF PREMISES

     5.1  USE OF PREMISES.  During the Lease Term:  (a) Lessee will use the
Premises only for Permitted Premises Use; (b) Lessee will operate an acute care,
inpatient hospital and related activities on the Premises and in connection
therewith will have the exclusive right to use and control the entire operations
of the Hospital Facilities, including administration, services, finances,
medical and non-medical staffing, equipment, inventory, furnishings, supplies,
renovation and addition to or expansion of the Leased Assets, except as
otherwise provided herein; (c) Lessee will operate, use and maintain the Leased
Assets in compliance with all applicable Legal Requirements; and (d) the Leased
Assets will not be used for illegal or unlawful purposes or for any purpose that
is not a Permitted Premises Use.  During the first ten Lease Years, Lessee will
continue to offer all medical and surgical services that are usual and customary
at an acute care inpatient medical and surgical facility in the Oklahoma City,
Oklahoma market and that were provided by the Hospital on the Lease Commencement
Date, unless such discontinuation of services has been previously approved by
Lessor.

     5.2                                                             EMPLOYEES.

          (a) On the Lease Commencement Date, Lessee will hire and employ each
person who was an employee of the Hospital on the day immediately preceding the
Lease Commencement Date (collectively, the "EMPLOYEES"), at the same or higher
rates of compensation and with benefits (including tuition reimbursement)
substantially equivalent to that currently paid by the Hospital and comparable
to those of employees of Guarantor's other hospitals.  All Employees will be
covered by Guarantor's standard personnel policies and procedures.  Lessee and
Guarantor retain the right to change or terminate any such benefits and any such
policies and procedures at any time and from time to time as Lessee and
Guarantor deem appropriate in their sole discretion.  If an Employee is hired by
an Affiliate of Guarantor to provide services to the Hospital or its patients,
the provisions of this Section 5.2 will apply to such Affiliate as if it were a
party to this Lease.

          (b) Lessee and Guarantor will give each Employee full credit for all
service with the Hospital, as if such service had been with Guarantor and its
Affiliates, for purposes of eligibility to participate in, vesting and payment
of benefits under (but not for purposes of determining the amount of any benefit
under) Guarantor's 401(k) plan and any other employee benefit plans maintained
by Lessee or Guarantor, as permitted by law and the terms of each such plan.

          (c) All accrued paid annual leave of Employees not cashed out by the
Hospital and existing on the Lease Commencement Date will be carried forward and
honored by Lessee, which will give each Employee full credit in equivalent hours
or days for the time in such Employee's account on the Lease Commencement Date.
Lessee may, at its

                                       5
<PAGE>
 
option, cash out each Employee's accrued paid annual leave in excess of 80 hours
after the Lease Commencement Date.

          (d) Lessee will on the Lease Commencement Date offer eligible
Employees a group health plan that provides coverage for any preexisting
condition (within the meaning of the Internal Revenue Code) of an Employee (or
eligible dependent).

          (e) Lessee will not require any Employee to transfer from the Hospital
to any other facility of Guarantor or any other location without (i) obtaining
the Employee's consent and (ii) paying the Employee's reasonable moving costs in
accordance with Guarantor's standard personnel policies and procedures.

          (f) If Lessee requires any full-time Employee to take an involuntary
reduction in hours worked, such reduction will not result in a reduction in or
loss of non-cash benefits to such Employee.

          (g) Lessee will give credit (or cause its insurance carriers to give
credit) to each Employee, on a dollar-for-dollar basis, toward the deductible
and co-payment requirements of Lessee's group health plans for any such amounts
paid by any Employee (or eligible dependent) for the plan year under the
Hospital's applicable group health plan during which the Lease Commencement Date
occurs; provided, however, that such Employee will provide Lessee reasonable
evidence of the amount credited toward his deductible and co-payment
requirements.

          (h) During the first Lease Year, Lessee will not effect any reductions
in force at the Hospital other than reductions as a result of attrition,
flexible staffing for seasonal adjustments, or downsizing in connection with
decreases in patient census.

          (i) Lessee acknowledges that it will be responsible for all applicable
obligations and liabilities under the Workers Adjustment and Retraining Act, as
amended, with respect to the Employees.

          (j) If any Employee who was a Hospital Vice President on the Lease
Commencement Date is involuntarily terminated from employment by Lessee or
Guarantor, then he will receive 90-day severance in accordance with Guarantor's
standard personnel policies and procedures.

          (k) Nothing contained in this Section 5.2 will limit Lessee's
management prerogatives with respect to Employees, or create a right of
continued employment for any specific Employee or create any right of action by
any Employee, any group of Employees or any other third party, either jointly or
severally.

     5.3  MEDICAL STAFF.  Following the Lease Commencement Date, Lessee will
honor and abide by the medical staff appointments, privileges and other rights
set forth in and subject to the bylaws and rules and regulations of the medical
staff of the Hospital in effect on the Lease Commencement Date; provided,
however, that the provisions of this Section 5.3 will not give rise, or be
deemed to give rise, to

                                       6
<PAGE>
 
any right or right of action in any medical staff member, other third party or
any group thereof.

     5.4  ADVISORY BOARD.  On or before the Lease Commencement Date, Lessee will
establish an Advisory Board of Trustees for the Hospital to provide counsel to
Lessee concerning the delivery of health care and hospital services to residents
of the Hospital's service area (the "ADVISORY BOARD").  The Advisory Board will
consist of physicians, two representatives of the City Council of the City, and
representatives from industry, government, community and religious
organizations, each as selected from time to time by Lessee.  Lessee will
maintain the Advisory Board for the Lease Term, but this covenant will not give
rise, or be deemed to give rise, to any right in any one or more individuals to
become or remain members of the Advisory Board.

     5.5  CHARITY CARE.  During the Lease Term, Lessee will comply with all
federal and state requirements to provide emergency services without regard to
an individual's ability to pay, and accept any patient admitted by an active
member of the Hospital's medical staff without regard to the ability of such
patient to pay for the services provided.

     5.6  RATES.  Lessee agrees that during the Lease Term rates charged by the
Hospital will be reasonable and commensurate with both the services offered and
the costs to provide such services, and usual and customary for the geographic
area served.

     5.7  FINANCIAL INFORMATION.  During the Lease Term:  (a) for so long as the
capital stock of Guarantor is publicly traded, Guarantor will provide to Lessor,
contemporaneously with the distribution thereof to its stockholders, copies of
its annual and quarterly reports to stockholders; and (b) in the event that the
capital stock of Guarantor ceases to be publicly traded, Guarantor will provide
to Lessor, promptly upon the completion thereof, copies of its annual audited
financial statements and quarterly unaudited financial statements.

     5.8  CONTRACTS.  With respect to each material long-term contract relating
to the management or operation of the Hospital or the Hospital Facilities that
is reasonably likely to be in effect upon expiration or earlier termination of
the Lease Term, Lessee will use its best efforts to negotiate for or otherwise
include therein a provision that permits Lessor to elect, in its discretion, to
assume such contract upon termination or expiration of the Lease Term.

     5.9  COMPLIANCE WITH DEFINITIVE AGREEMENT.  Lessee will comply with its
obligations under the Definitive Agreement.  The terms of the Definitive
Agreement, including the respective representations, warranties, covenants and
agreements of Lessor, Lessee and Guarantor set forth therein, are incorporated
herein by reference.

     5.10                                        ENVIRONMENTAL LAW COMPLIANCE.

          (a) Lessee will comply with all Environmental Laws that are applicable
to the Premises (or any portion thereof) or the operation

                                       7
<PAGE>
 
of the Hospital Facilities during the Lease Term, including those relating to
the handling or disposal of Medical Waste.  Lessee will obtain, or as necessary
will apply for, all Environmental Permits (other than those constituting part of
the Leased Assets) required in connection with the use of the Premises or the
operation of the Hospital Facilities.  Lessee will not cause, permit or allow
any Hazardous Substances to be brought upon, kept, generated, stored, disposed
of, used or otherwise Released on, about or beneath the Premises in violation of
any Environmental Laws.

          (b) Lessee will promptly commence and diligently prosecute to
completion any assessment, evaluation, investigation, site monitoring,
containment, cleanup, removal, repair, restoration, remediation, detoxification
or other remedial work of any kind or nature (collectively, "REMEDIAL WORK")
with respect to the Premises (or any portion thereof) in the event that any
Remedial Work is required or reasonably necessary under any Environmental Laws
because of or in connection with the actual or suspected Release of Hazardous
Substances on, about or beneath the Premises (or any portion thereof).  Lessee
will pay all costs and expenses of such Remedial Work and will provide Lessor
with Indemnification with respect thereto, except that if (and to the extent
that) the need for such Remedial Work arose from or is directly related to any
occurrence or condition on, about or beneath the Premises (or any portion
thereof) that existed prior to the Lease Commencement Date, then Lessor will pay
all costs and expenses of such Remedial Work and will provide Lessee with
Indemnification with respect thereto.  Lessee will notify Lessor as soon as
practicable of any material Remedial Work performed by Lessee.  If Lessee does
not timely commence and diligently prosecute to completion any Remedial Work
that is required by this Section 5.10(b), or if Lessee does not perform or
observe in any material respect any of its other obligations or agreements
hereunder pertaining to any Hazardous Substances or Environmental Laws, then
upon reasonable notice to Lessee, Lessor will have the right, but not the duty,
without limitation upon any of Lessor's other rights under this Lease, to enter
upon the Premises at reasonable times, personally or through its agents,
consultants or contractors, and to cause such Remedial Work or other Lessee
obligations or agreements to be performed, in each case to the extent that
Lessee fails to perform the same.  Lessee will provide Lessor with
Indemnification with respect to all costs and expenses of performing any
Remedial Work that is required by this Section 5.10(b) and not performed by
Lessee, except that if (and to the extent that) the need for such Remedial Work
arose from or is directly related to any occurrence or condition on, about or
beneath the Premises (or any portion thereof) that existed prior to the Lease
Commencement Date, then Lessor will pay all costs and expenses of such Remedial
Work and will provide Lessee with Indemnification with respect thereto.

          (c) Lessee will promptly provide written notice to Lessor of:  (i) any
notice received by Lessee of any existing, pending or threatened action, suit,
investigation, inquiry or proceeding commenced by or before any Governmental
Entity with respect to Hazardous Materials on, about or beneath the Premises (or
any portion thereof), or the migration of any Hazardous Substances to or from

                                       8
<PAGE>
 
property adjoining or in the vicinity of the Premises, or alleging any
obligation under Environmental Laws; (ii) any claims made or, to Lessee's
knowledge, threatened by any person or entity against Lessee or the Premises
relating to any loss or injury allegedly resulting from any Hazardous
Substances; and (iii) the discovery of any occurrence or condition on, about or
beneath the Premises (or any portion thereof), or on, about or beneath any
property adjoining or in the vicinity of the Premises, of which Lessee becomes
aware, which may cause the Premises (or any portion thereof) to be in violation
of any Environmental Laws or subject to any restriction on ownership, occupancy,
transferability or use under any Environmental Laws.

          (d) Lessor will have the right, but not the duty, to retain at its own
expense any independent professional consulting engineer to enter the Premises
to conduct inspections and to prepare reports of such inspections.  Lessee will
allow Lessor, and the agents, employees, consultants and contractors of Lessor,
at reasonable times and upon reasonable notice, to enter the Premises and to
perform such customary environmental tests, assessments and audits on the
Premises, including soil borings and other invasive tests, as are reasonably
necessary in the circumstances and do not interfere with Lessee's operation of
the Hospital Facilities.  The inspection rights granted to Lessor by this
Section 5.10(d) will be in addition to, and not in limitation of, any other
inspection rights granted to Lessor by this Lease.  Lessor will bear and pay all
expenses incurred by it in connection with such inspections and reports, and
will return the Premises and the Hospital Facilities to the condition they were
in prior to any such inspection, except that if the inspection reveals a
significant violation of any Environmental Law or a Release of Hazardous
Substances, then Lessee will bear and pay all expenses incurred by Lessor in
connection with such inspection.

     5.11  OPERATIONAL COMPLIANCE BY LESSEE.  Lessor will be entitled, without
limitation as to its remedies, to the remedy of specific performance for
Lessee's breach of or failure to comply with any provision of this Article 5,
except that any such breach or failure will not constitute a Major Event of
Default.

ARTICLE 6.  INSURANCE

     6.1  IN GENERAL.  Lessor will be named as an additional insured and loss
payee in every policy of insurance required by this Lease to be obtained and
maintained by Lessee.  Proceeds of insurance policies will be payable to Lessee
or Lessor as their respective interests may appear or as specifically set forth
in this Article 6.  No such policy will be canceled or reduced in scope of
coverage or amount of coverage without 30 days' prior written notice to Lessor.
Certificates of insurance evidencing the insurance coverage required hereby will
have been delivered by Lessee to Lessor on or before the Lease Commencement
Date, and will be delivered to Lessor at the commencement of each succeeding
Lease Year.  The failure of Lessor to require any additional insurance coverage
will not be deemed to relieve Lessee from any obligations under this Lease.
Lessee will pay all premiums on policies required hereunder as they become due
and payable and, upon request of Lessor, will promptly deliver to Lessor
reasonable evidence

                                       9
<PAGE>
 
of the timely payment thereof.  Lessee will comply with the provisions of all
insurance policies covering or applicable to the Leased Assets.

     6.2  PROPERTY INSURANCE.  Lessee will, at its own expense, obtain and keep
in force during the Lease Term a policy or policies of insurance covering loss
or damage to the Leased Assets in the amount of the replacement cost basis
thereof, as the same may exist from time to time, against all perils included
within the classification of fire, extended coverage, vandalism, malicious
mischief, special extended perils (all risk) and sprinkler leakage.  If Lessee
fails to procure and maintain such insurance, Lessor may, but will not be
required to, procure and maintain the same, but at the expense of Lessee.

     6.3  LIABILITY INSURANCE.  Lessee will, at its own expense, obtain and keep
in force during the Lease Term policies of comprehensive liability insurance,
professional (malpractice) liability insurance, excess coverage (umbrella)
insurance and employer's liability insurance insuring Lessee against any
liability arising out of the use, occupancy or maintenance of the Leased Assets,
with coverage amounts as are customary for hospital facilities of the same size
and services as the Hospital Facilities.  During the first ten Lease Years, the
comprehensive liability insurance will have a policy limit of not less than
$1,000,000, the professional liability policy will have policy limits of not
less than $1,000,000 per person and $3,000,000 per occurrence, and the excess
coverage (umbrella) policy will have a policy limit of not less than
$10,000,000.  On each ten-year anniversary of the Lease Commencement Date, at
the request of Lessor, the parties will mutually decide whether such policy
limits should be increased, taking into consideration industry practice and the
local market, but if such mutual decision is not reached, the policy limits will
remain as provided in the immediately preceding sentence.  The limits provided
by this Section 6.3 will not, however, limit the liability of Lessee hereunder.
If Lessee fails to procure and maintain such insurance, Lessor may, but will not
be required to, procure and maintain the same, but at the expense of Lessee.

     6.4  MUTUAL RELEASES AND WAIVER OF SUBROGATION.  Lessor and Lessee hereby
waive, to the extent not prohibited by applicable insurance policies, any and
all rights of recovery and causes of action which either has or may have or
which may arise hereafter against the other, its trustees, directors, employees,
agents or stockholders, whether caused by negligence, intentional misconduct or
otherwise, for any loss or damage to any of the Leased Assets or to any property
stored thereon or to the operations of the Hospital Facilities caused by any
perils covered by fire and extended coverage, building, contents and business
interruption insurance, or for which either party may be reimbursed as a result
of insurance coverage affecting any loss suffered by it; provided, however, that
the foregoing waivers and releases are in addition to all other waivers or
releases contained in this Lease and will apply only to the extent of any
recovery made by a party under any policy of insurance now or hereafter issued;
and further provided that the foregoing waivers and releases do not invalidate,
cause the cancellation or reduction of, or permit the insurer to cancel or
reduce, any policy of insurance of

                                       10
<PAGE>
 
the parties, now or hereafter issued.

     6.5  BUSINESS INTERRUPTION INSURANCE.  During the Lease Term, Lessee may
maintain business interruption insurance for its own protection, and any
proceeds payable under any such policy will be the sole property of Lessee.

     6.6  COMPLIANCE BY LESSEE.  Lessee will be in compliance with the terms of
this Article 6 so long as the total limits of insurance herein required are
provided, regardless of the allocation of such limits among underlying or excess
policies.  In addition, Lessee will be in compliance with the terms of this
Article 6 if it, in its discretion, chooses to self-insure all or any portion of
the risks described herein so long as it complies with all aspects of Oklahoma
law regarding such self-insurance.

     6.7  REMEDY FOR NONCOMPLIANCE.  Unless Lessee self-insures as contemplated
herein, if Lessee fails to obtain and pay the premiums for any insurance
policies providing the coverages specified in this Article 6, then Lessor may
obtain the same and pay the premiums therefor, and the amount paid by Lessor
will be deemed Additional Rent, and will become immediately due and payable.

ARTICLE 7.  FIRE AND CASUALTY DAMAGE

     7.1  NOTICE OF DAMAGE.  If during the Lease Term any part or all of the
Premises is damaged or destroyed by fire, storm or other casualty of any kind or
nature, ordinary or extraordinary, foreseen or unforeseen, and the amount of
damage exceeds the dollar amount stated to be applicable in the standard
"deductible clause" of the property insurance policy, Lessee will give written
notice thereof to Lessor within ten days after the date the damage occurred.

     7.2  SUBSTANTIAL DESTRUCTION.  If the Hospital building comprising the
Premises is substantially destroyed at any time during the Lease Term by fire,
storm or other casualty, to the extent that the Premises cannot reasonably be
used for an acute care hospital, then Lessee will, at its expense and subject to
compliance with applicable zoning regulations or such variances or non-
conforming uses as may be allowed, rebuild the Hospital building and any other
damaged portions of the Premises so that the Premises can be used to furnish
substantially the same type and quality of services as were furnished on the
Premises prior to the substantial destruction.  In such event, Lessor will make
available or will pay and deliver to Lessee any insurance proceeds received by
Lessor or the City because of damage to the Premises (or, in the case of
insurance maintained by Lessor or the City at its own expense, any insurance
proceeds (up to the costs incurred by Lessee) received by Lessor or the City).

     7.3  PARTIAL DESTRUCTION.  Except as otherwise provided by Section 7.5, if
the Hospital building or other Improvements comprising the Premises are damaged
at any time during the Lease Term by fire, storm or other casualty to the extent
that a portion, but not substantially all, of the Premises cannot be used for
the purpose for which such portion was used prior to the casualty, Lessee will,
at its

                                       11
<PAGE>
 
expense and subject to compliance with applicable zoning regulations or such
variances or non-conforming uses as may be allowed, restore the Premises to the
condition they were in prior to the casualty.  In such event, Lessor will make
available or will pay and deliver to Lessee any insurance proceeds received by
Lessor or the City because of the casualty loss resulting in the partial
destruction (or, in the case of insurance maintained by Lessor or the City at
its own expense, any insurance proceeds (up to the costs incurred by Lessee)
received by Lessor or the City).

     7.4  OBLIGATIONS OF LESSOR.  Nothing contained herein will be construed to
obligate Lessor to expend funds beyond those received as insurance proceeds.

     7.5  EXTENSION OR TERMINATION OF LEASE TERM.  The Lease Term will be
automatically extended for a period equal to the number of days during which the
ordinary and usual operation of the Hospital Facilities is prevented by reason
of any substantial or partial destruction of the Premises; provided, however,
that in the event of substantial destruction of the Premises, as contemplated by
Section 7.2, during the last five Lease Years, at Lessee's option either:  (a)
the Lease Term will be automatically extended for five additional Lease Years;
or (b) the Lease Term will terminate.  Any extension of the Lease Term arising
under this Article 7 will be upon the same terms and conditions otherwise set
forth in this Lease.

ARTICLE 8.  UTILITIES

     Lessee will arrange for and pay all charges for water, electricity, light,
heat, air conditioning, power, gas, sewer, telephone and other communication
services and all other utilities and similar services which are used in or on,
or are properly charged against, the Premises during the Lease Term.  Any
failure by Lessee to pay any charge reasonably contested will be subject to the
provisions of Sections 13.2 and 13.3.  In the event that easements for the
installation and operation of utilities are required to be granted to any
utility company or municipality to service the Premises, Lessor will cooperate
with Lessee in the grant of such easements as may be reasonably required
effectively to create the required easement.

ARTICLE 9.  CONDITION OF PREMISES; CARE, ALTERATIONS, ETC.

     9.1  CONDITION OF PREMISES.  Lessee has inspected the Premises and the
other Leased Assets and, except for the representations, warranties and
covenants contained in this Lease and the Definitive Agreement, Lessee accepts
the Premises AS IS and WHERE IS, without any additional agreements,
representations, understandings or obligations on the part of Lessor to perform
any alterations, repairs or replacements.

     9.2                                                      CARE OF PREMISES.

          (a) During the Lease Term, Lessee will, at its own expense, keep and
maintain the Premises and the other Leased Assets in good order and repair,
ordinary wear and tear, casualty loss and other

                                       12
<PAGE>
 
insured loss excepted.  Lessee will do all things which from the character and
use of the Premises and the other Leased Assets would be reasonably necessary
for proper maintenance, repair and replacement thereof, and in this respect,
without limiting the generality of the foregoing, Lessee will perform and
furnish, at Lessee's expense, all painting, carpentry, redecorating,
landscaping, refurbishing, maintenance, servicing, repairing and replacement of
all portions of the Premises, and will  not allow any of the Premises to be
misused, abused or wasted, or to deteriorate, ordinary wear and tear excepted.
Lessee will be responsible for the care, maintenance and repairs, renovation,
restoration or replacement, if required, of the air conditioning, heating,
mechanical, plumbing, electrical/fire alarm, security and sprinkler systems.
Lessee acknowledges that its obligations to repair, renovate, restore or replace
extends to the roof of the Hospital structure.

          (b) Both Lessor and Lessee acknowledge that certain Improvements, when
necessary from time to time, may require regulatory approvals from appropriate
Governmental Entities.  Lessee will apply for, and use its best efforts to
obtain, approvals necessary to effect such Improvements.

          (c) Failure of Lessee to maintain, repair, replace or restore, as
provided by this Section 9.2, will entitle Lessor, after notice, to seek
specific performance or to enter onto the Premises and repair and maintain the
Premises and to charge Lessee therefor, and such charges properly made will be
construed as Additional Rent, and will become immediately due and payable.

     9.3  ALTERATIONS, ADDITIONS AND CAPITAL IMPROVEMENTS.  During the Lease
Term, Lessee has the right to make alterations, additions and capital
Improvements to the Premises, with or without the prior approval of Lessor,
provided they are architecturally consistent with the Improvements, and such
will be made in a good and workmanlike manner, and will comply with all
applicable governmental laws, regulations and requirements.  All alterations,
additions and capital Improvements will be made at the cost and expense of
Lessee and will become the property of Lessor upon expiration or termination of
the Lease Term.  Lessee will not make or effect any renovations, alterations,
structural additions or capital Improvements to the Premises which would, in its
reasonable judgment, impede the use or reduce the value of the Leased Assets.
Any construction, Improvements or alterations made by or on behalf of Lessee
will be prosecuted with diligence and continuity, in good and workmanlike
manner, and in accordance with sound building and engineering practices and
applicable Legal Requirements.

     9.4  GOVERNMENTAL FEES.  During the Lease Term, all fees and charges due
any Governmental Entity on account of any inspection made on the Premises will
be paid by Lessee.  Any failure by Lessee to pay any such fee or charge will be
subject to the provisions of Sections 13.2 and 13.3.

     9.5  LESSOR'S ACCESS.  During the Lease Term, Lessor and its agents,
including architects and engineers, will have access at

                                       13
<PAGE>
 
reasonable times and upon reasonable notice for the purpose of inspection of the
Premises or of making repairs, additions or alterations, but such right will not
be construed as an agreement on the part of Lessor to make repairs.

ARTICLE 10.  LICENSURE AND GOVERNMENTAL APPROVAL

     Lessee will, at all times during the Lease Term, conduct its business
pursuant to a valid license issued by the State of Oklahoma authorizing Lessee
to operate an acute care hospital on the Premises and to furnish such other
services as are offered by Lessee and which can lawfully be performed pursuant
to a valid license or governmental approval.  Lessee will obtain and maintain
continuously throughout the Lease Term, all Licenses and Permits, and will do
all things reasonably required by the appropriate licensing authority to
maintain such Licenses and Permits.  Lessee will timely file all requisite cost
report claims and other reports required to by filed by it in connection with
all Medicare, Medicaid and other governmental health programs relating to
Lessee's use and operation of the Hospital Facilities.

ARTICLE 11.  LIENS AND IMPOSITIONS

     11.1  ENCUMBRANCE BY LESSOR.  Lessor will not, nor will it permit the City
to, sell, convey, mortgage, pledge or otherwise encumber or use as security any
portion or all of the Leased Assets at any time during the Lease Term, and
Lessor hereby subordinates to this Lease its leasehold interest in the Leased
Assets owned by the City, and its fee interest in all of the Leased Assets other
than the Leased Assets owned by the City.  If during the Lease Term any lien or
encumbrance (other than a Permitted Encumbrance) is asserted against any of the
Assets by, through or under Lessor or the City, or as a result of the acts or
omissions of Lessor or the City, Lessor will provide Lessee with Indemnification
with respect thereto.

     11.2  ENCUMBRANCE BY LESSEE.  During the Lease Term, Lessee may create
liens, encumbrances and charges upon Lessee's leasehold estate in the Leased
Assets or any portion thereof, provided that Lessee provides Lessor with
Indemnification with respect thereto.  Lessee will take such action as may be
required, including the payment of a sum into a court or the posting of a bond
to secure payment of any such lien, encumbrance or charge to cause any claim
therefor to be cleared prior to execution on judgment.  The mere filing or
foreclosure of a lien, encumbrance or charge against the Leased Assets or the
entry of a judgment thereon will be subject to the provisions of Sections 13.2
and 13.3.

     11.3  IMPOSITIONS.  No later than 30 days after the Lease Commencement
Date, Lessor and Lessee will each notify the appropriate Governmental Entities
that the Leased Assets have been leased to Lessee and that such Governmental
Entities should thereafter send all notices relating to the Impositions to
Lessee.  Lessee will use its best efforts promptly to send to Lessor copies of
all notices received by Lessee from any Governmental Entity relating to any of
the Leased Assets, including any notices relating to Impositions.  Impositions

                                       14
<PAGE>
 
that are payable in respect of the tax or calendar year in which the Lease Term
commences, or in respect of the tax or calendar year in which the Lease Term
ends, will be apportioned so that each of Lessor and Lessee will pay its
proportionate share based on the respective time periods each has had
responsibility for operating the Leased Assets.  The certificate, advice, bill
or statement issued or given by the appropriate Governmental Entity authorized
to issue the same or to receive payment of any Imposition will be prima facie
evidence of the existence, nonpayment or amount of such Imposition for the
purposes of establishing Lessee's obligations hereunder.  Lessee will, upon
written request of Lessor, deliver to Lessor reasonable evidence showing payment
of each Imposition to the appropriate Governmental Entity.  To the extent any
Imposition is permitted to be paid in installments, Lessee may pay such
Imposition in installments as and when such installments become due.  Lessor
acknowledges that installments of any Imposition which become due and payable
following expiration or termination of the Lease Term will be the sole
obligation of Lessor.  Lessee may, at its sole cost and expense, contest the
validity or amount of any Imposition to the full extent of its applicable
administrative or judicial remedies, in which event the payment thereof may be
deferred during the pendency of such contest, if diligently prosecuted;
provided, however, that an Imposition may not remain unpaid for such period of
time as would permit any of the Leased Assets to be sold or seized by any
Governmental Entity for nonpayment.  Lessor will, at the request of Lessee, join
in and cooperate fully with Lessee in any such contest proceedings or
applications, provided that Lessee provides Lessor with Indemnification with
respect thereto.  Lessor will promptly pay over to Lessee any refund of any
Impositions, and penalties and interest thereon, received by Lessor which had
been paid by Lessee.

     11.4  PAYMENTS IN LIEU OF TAXES.  The parties intend for the Premises to be
subject to Taxes assessed by Oklahoma County, Oklahoma, on behalf of
Governmental Entities, including the City and the Mid-Del Independent School
District, on owners of commercial real property in general.  In the event that
at any time during the Lease Term Lessee becomes exempt from payment of such
Taxes on the Premises, or such Taxes are not levied or imposed on the Premises
for any reason, Lessee will pay to Lessor an amount equal to the amount of such
Taxes which would have been levied or imposed on the Premises but for the
exemption.

ARTICLE 12.  QUIET ENJOYMENT

     Subject to the provisions of this Lease, and so long as a Major Event of
Default has not occurred and is continuing, Lessee will lawfully, peaceably and
quietly have, hold, occupy and enjoy the Leased Assets and any appurtenant
rights granted to Lessee under this Lease during the Lease Term without
hindrance or ejection by Lessor, the City or any person lawfully claiming under
Lessor, and without interference by Lessor or the City in the operation of the
Hospital Facilities, subject only to the provisions of this Lease and the
Definitive Agreement.  Notwithstanding the foregoing, Lessor will have such
inspection rights as are provided by this Lease.

                                       15
<PAGE>
 
ARTICLE 13.  LESSEE'S DEFAULT AND REMEDIES THEREFOR

     13.1  MAJOR EVENTS OF DEFAULT.  Upon the occurrence during the Lease Term
of any of the following events (each, a "MAJOR EVENT OF DEFAULT"), Lessor may
elect to terminate this Lease without any obligation to repay any rent or other
amounts theretofore paid to Lessor hereunder:

          (a) Lessee loses or forfeits (i) its license to operate the Hospital
     as an acute care hospital or (ii) its Medicare certification, or
     certification by Medicare's successor program (unless such certification is
     no longer necessary to receive payments for treatment rendered to Medicare
     recipients); provided, however, that if Lessee is notified by the
     appropriate authority or is otherwise informed that such license or such
     certification has been lost, forfeited or revoked, then Lessee may take
     such action as it may deem necessary to seek reinstatement or
     recertification, including commencement or defense of such administrative
     and/or judicial proceedings as may be indicated, and Lessee will have a
     period to cure such default that will continue until all of the
     administrative and/or judicial remedies of Lessee have been exhausted and
     such proceedings have resulted in the final judicial determination that
     Lessee is not entitled to reinstatement, renewal or recertification, or
     that Lessee must surrender the same, as the case may be; and provided
     further that such period of cure will extend only so long as Lessee is
     legally or judicially allowed to continue the operation of the Hospital
     without thereby being in violation of any order of a court of competent
     jurisdiction; or

          (b) Lessee fails to operate the Hospital as an acute care hospital for
     any period of 30 consecutive days (taking into account the provisions of
     Section 13.4), and the Premises have not been partially or substantially
     destroyed as contemplated by Article 7, or substantially taken by eminent
     domain proceedings as contemplated by Article 15; or

          (c) either Lessee or Guarantor:  (i) ceases doing business as a going
     concern; (ii) makes an assignment for the benefit of creditors; (iii) files
     a petition commencing a voluntary case under any chapter of the Bankruptcy
     Code; (iv) has filed against it a petition commencing an involuntary case
     under any chapter of the Bankruptcy Code, and such petition is not stayed
     or dismissed within 90 days after its filing; (v) has entered against it
     the execution of a judgment or other judicial action which results in a
     sale or seizure of all or substantially all of Lessee's assets; (vi) is
     adjudicated an insolvent; (vii) files a petition seeking for itself any
     reorganization, arrangement, composition, readjustment, liquidation,
     dissolution or similar arrangement under any present or future statute,
     law, rule or regulation relating to bankruptcy or insolvency, or files an
     answer admitting the material allegations of a petition filed against it in
     any such proceeding; or (viii) acquiesces in the appointment of a trustee,
     receiver, custodian or other

                                       16
<PAGE>
 
     similar official for it or for all or any substantial part of its assets or
     properties; provided, however, that the merger, consolidation or sale of
     substantially all of the capital stock or assets of Lessee or of Guarantor
     as a going concern will not be deemed to be an event within the
     contemplation of this Section 13.1(c);

          (d) Guarantor consummates a Disposition without having provided Lessor
     with the First Refusal, all as provided by Section 16.2; or

          (e) Lessee assigns this Lease, sublets the Leased Assets or
     consummates a Disposition in violation of the provisions of Article 17.

     13.2 OTHER BREACHES OF LEASE.  If during the Lease Term Lessee fails to
perform, observe or comply with any other term, covenant, condition or provision
of this Lease binding upon it, and such failure continues for a period of 90
days after written notice thereof has been given by Lessor to Lessee, then
Lessor may have and exercise all such rights and remedies as are provided under
the applicable provisions of this Lease and of Oklahoma law; provided, however,
that where a specific remedy has been provided for in this Lease, such specific
remedy will be Lessor's sole remedy for such breach; and provided further that
if Lessee proceeds to cure any such breach, and such cure, if begun and
prosecuted with due diligence, cannot be completed within a period of 60 days,
then such cure period will be increased to such extent as is necessary to enable
Lessee to begin and complete such cure through the exercise of due diligence.

     13.3 INDEMNITY FOR BREACH.  Notwithstanding any other provision of this
Article 13, if any breach of this Lease occurs, and Lessee fails to cure such
breach in the manner specified herein, and such breach would result only in
monetary loss to Lessor, then Lessee may elect to cure such breach by providing
Lessor with Indemnification against such loss, immediately upon the final
determination of such breach, and such provision of Indemnification will have
the same effect as if no breach had occurred, and this Lease will continue for
the balance of the Lease Term.  If such provision of Indemnification involves
reimbursement of Lessor for amounts expended by it (as distinguished from
payments made directly to a third party on Lessor's behalf), then Lessee will
also pay to Lessor Interest accruing from the date Lessor expended such amounts.

     13.4 CAUSES BEYOND A PARTY'S CONTROL.  If during the Lease Term either
party is delayed or prevented from the performance of any act required by this
Lease by reason of acts of God, strikes, lockouts or the like, without fault and
beyond the reasonable control of such party, then performance of such act by
such party will be excused for the period of the delay; and the period for the
performance of any such act will be extended for a period equivalent to the
period of such delay; provided, however, that nothing in this Section 13.4 will
excuse Lessee from the prompt payment of any rent or other charge required of
Lessee except as may be expressly provided elsewhere in this Lease.

                                       17
<PAGE>
 
     13.5  REPOSSESSION OF THE PREMISES ON TERMINATION.  Upon termination of
this Lease as provided by Section 13.1, Lessor may proceed to enter into and
repossess the Premises with process of law and remove Lessee's employees or
property therefrom in such manner and in accordance with such procedures as a
court of competent jurisdiction may allow, without incurring any liability to
Lessee or to any persons occupying or using the Premises for any damage caused
or sustained by reason of such lawful entry or removal; provided, however, that
upon posting a bond in the amount and manner determined by a court of competent
jurisdiction, Lessee may continue to operate the Hospital Facilities and have
possession of the Premises until it becomes legally obligated to surrender the
same by reason of a final judicial determination in the courts of the State of
Oklahoma, or at the level of the U.S. Circuit Court of Appeals if the applicable
proceeding was commenced in a U.S. District Court by an unrelated party.  Lessee
will provide Lessor with Indemnification with respect to all costs incurred in
such removal and storage of property.

ARTICLE 14.  SURRENDER OF POSSESSION

     14.1 SURRENDER OF LEASED ASSETS.  Upon the expiration or termination of the
Lease Term, howsoever effected:

          (a) Lessee will forthwith surrender the Leased Assets to Lessor, free
     and clear of all claims, liens, security interests and other encumbrances
     (except those existing on the Lease Commencement Date) and in as good
     working order and condition as on the Lease Commencement Date, ordinary
     wear and tear excepted;

          (b) Lessee will transfer to Lessor all equipment and other personalty,
     including furniture and supplies, owned by Lessee and kept at the Premises
     that were acquired by Lessee as replacements, substitutions or enhancements
     of the Leased Assets (other than replacements, substitutions or
     enhancements that represent new and different technology or expanded
     capability);

          (c) Lessee will permit Lessor to purchase, at the lower of Lessee's
     cost (determined on the basis of first-in-first-out) or then-current market
     value, all other equipment and personalty owned by Lessee and kept at the
     Premises and not contemplated by Section 14.1(b);

          (d) Lessee will cooperate in all reasonable requests of Lessor to
     assist in the transfer of all Licenses and Permits required by Lessor to
     operate the Hospital Facilities for its own account; and

          (e) Lessee will execute and deliver to Lessor such bills of sale and
     assignments as Lessor may reasonably require.

     14.2 ASSIGNMENT AND ASSUMPTION OF CONTRACTS.  Upon expiration or
termination of the Lease Term, howsoever effected, those contracts and leases
(including those entered into for the purpose of enhancing Hospital census,
services and operations) negotiated at arms length by Lessee during the Lease
Term and then outstanding will be assigned

                                       18
<PAGE>
 
to and assumed by Lessor, and Lessor will provide Lessee with Indemnification
from all obligations and liabilities arising out of such contracts and leases
after such assignment to and assumption by Lessor.  Lessee will provide Lessor
with Indemnification from all obligations and liabilities arising out of such
contracts and leases prior to such assignment to and assumption by Lessor.

ARTICLE 15.  EMINENT DOMAIN

     If at any time during the Lease Term the entire Premises, or such part
thereof as renders the remaining portion unsuitable for use as a 208-bed general
acute care hospital with adequate parking area, and vehicular and pedestrian
access to the Premises, is acquired by Governmental Entities or quasi-
governmental authorities by the exercise of the power of eminent domain, then
upon written notice of Lessee's election so to do, given by Lessee to Lessor
within 30 days after receipt by Lessee of notice from Lessor that proceedings or
negotiations with respect to such acquisition have begun, this Lease will
terminate for all purposes (except enforcement of rights then accrued), at the
time possession must be surrendered to such authority, and the amount of the
award will be divided between Lessor and Lessee as their respective interests
may appear, taking into account that Lessee is entitled to full credit for the
amortized value of all prepaid rent and the amortized value of all capital
Improvements made during the Lease Term.

ARTICLE 16.  GUARANTY

     16.1 GUARANTY.  Guarantor hereby guarantees to Lessor the full and prompt
payment and performance of all of Lessee's obligations and duties under this
Lease and the Definitive Agreement and, except as otherwise provided by Section
16.2(d)(ii), the obligations and duties under this Lease and the Definitive
Agreement of any and all of Lessee's successors or assigns.  Guarantor will pay
all costs, expenses and fees, including all reasonable attorneys' fees, which
may be incurred by Lessor in any successful proceeding instituted to enforce the
duties and obligations of Guarantor under this Section 16.1 following any
default on the part of Lessee or Guarantor hereunder.  Guarantor will execute
and deliver such other agreements, documents and instruments as may be
reasonably required to further evidence Guarantor's obligations set forth in
this Section 16.1.  Any discharge or limitation of Lessee's obligations under
this Lease by operation of law or otherwise will not discharge or limit
Guarantor's obligations to Lessor, except as otherwise provided in this Lease.

     16.2 RIGHT OF FIRST REFUSAL.

          (a) In the event that, at any time during the Lease Term, Guarantor
proposes (i) a transfer or sale of 50 percent or more of the voting stock, or
substantially all of the assets, of Lessee or Guarantor to a third party which
was not an Affiliate of Guarantor immediately prior to such transfer or sale, or
(ii) the merger or consolidation of Lessee or Guarantor with or into a third
party which was not an Affiliate of Guarantor immediately prior to such merger
or consolidation (other than a merger or consolidation in which Lessee

                                       19
<PAGE>
 
or Guarantor, as the case may be, is the surviving entity thereof) (each, a
"DISPOSITION"), then Guarantor will first give the First Refusal to Lessor to
terminate this Lease and reacquire possession of all (but not less than all) of
the Leased Assets (the "FIRST REFUSAL TRANSACTION") upon payment to Lessee, in
cash, of the First Refusal Price.  The "FIRST REFUSAL PRICE" means, in either
the case of a Disposition of Lessee or a disposition of Guarantor, an amount
equal to the fair market value of the leasehold interests represented by this
Lease, taking into account the years then remaining in the Lease Term,
determined as provided by Section 16.2(f) (the "DISPOSITION FAIR MARKET VALUE").
The First Refusal will be given by notice to Lessor,containing a complete
description of the essential terms of the proposed Disposition and the name,
address, qualifications and background of the third party with whom the
Disposition is proposed (the "ACQUIROR") (the date on which such notice is given
being the "OFFER DATE").  Notwithstanding the foregoing, the restrictions
provided by Article 17 will apply to any Disposition of Lessee.

          (b) The First Refusal may be exercised by Lessor by giving to
Guarantor notice of exercise within 30 days following the Offer Date.  Lessor's
notice will contain an unequivocal statement of its intention to exercise the
First Refusal in accordance with the provisions of this Section 16.2 and will be
accompanied by (i) a certificate to the effect that Lessor will use its best
efforts, in good faith, to ensure that sufficient funds will, by the time of
closing, be available to Lessor to enable it to pay the First Refusal Price, and
(ii) a good faith deposit in an amount equal to 5 percent of the First Refusal
Price.

          (c) Within 60 days following the Offer Date, Guarantor and Lessor will
enter into an agreement setting forth the terms and conditions of the First
Refusal Transaction (the "FIRST REFUSAL AGREEMENT") and will consummate the
First Refusal Transaction.  The parties' efforts in that regard will be pursued
diligently and in good faith, and the First Refusal Agreement will contain only
those terms and conditions as would be customary to consummate the First Refusal
Transaction in accordance with the provisions of this Section 16.2, including
those in respect of any required governmental approvals, transfers of Licenses
and Permits and contracts, and other provisions necessary to ensure that Lessor
receives in the First Refusal Transaction those assets required to operate the
Premises as an acute care, inpatient hospital facility.

          (d) In the event that Lessor fails to exercise the First Refusal as
herein provided, or fails to execute the First Refusal Agreement as herein
provided, or fails to close the First Refusal Transaction as herein and therein
provided, then Guarantor's consummation of the Disposition will not give rise to
any rights or obligations under this Lease (including those provided by Section
16.1), provided that:  (i) the Disposition is to the Acquiror and on
substantially the terms and conditions described in the notice given by
Guarantor to Lessor; and (ii) the Acquiror executes and delivers to Lessor and
to Guarantor, as a condition precedent to such Disposition, an instrument by
which the Acquiror irrevocably and unconditionally assumes the performance and
observation of the

                                       20
<PAGE>
 
agreements and obligations of Lessee and Guarantor under this Lease.

          (e) Lessee and Guarantor will afford to Lessor and its counsel,
accountants and other representatives reasonable access during the period
commencing on the Offer Date to and including (i) in the case of an unexercised
First Refusal, the date on which the 30-day exercise period referred to in
Section 16.2(b) has expired, or (ii) in the case of an exercised First Refusal,
the date of closing of the First Refusal Transaction, to the Leased Assets and
the books and records of Lessee relevant to its operation of the Hospital
Facilities, and will promptly furnish Lessor with all information as Lessor
reasonably requests in connection therewith.

          (f) Promptly after the Offer Date, Lessor and Guarantor will each
appoint a nationally recognized appraiser, who will each determine the
Disposition Fair Market Value and report such determination to Lessor and to
Guarantor within 15 days after the Offer Date.  If the two appraisers'
determinations of the Disposition Fair Market Value do not vary in a material
amount, then the First Refusal Price will be the amount of the Disposition Fair
Market Value agreed to by the two appraisers.  If the two appraisers'
determinations of the Disposition Fair Market Value vary in a material amount,
then such appraisers will jointly appoint a third nationally recognized
appraiser.  The group of three appraisers will then jointly determine, by
majority vote, the Disposition Fair Market Value and report such determination
to Lessor and to Guarantor within 25 days after the Offer Date, and in such
event the First Refusal Price will be the amount of the Disposition Fair Market
Value so jointly determined.  Lessor and Guarantor will each bear the costs and
expenses of the appraiser appointed by it, and 50 percent of the costs and
expenses of the third appraiser.

ARTICLE 17.  ASSIGNMENT OR SUBLEASE

     17.1 ASSIGNMENT OR SUBLEASE.  During the Lease Term, Lessee will not
directly or indirectly assign this Lease or any interest herein, or sublet the
Leased Assets or any part thereof, without the prior written consent of Lessor,
except that the following transactions will not require Lessor's consent:  (a)
an assignment or subletting to, or any other transaction with, an Affiliate of
Lessee; or (b) a sale, merger or other transaction which does not constitute a
Disposition of Lessee for purposes of the First Refusal.  In no event will
Lessee or Guarantor, without the prior written consent of Lessor, assign this
Lease, sublet the Leased Assets or effect a Disposition of Lessee to an entity
which owns, operates or manages, directly or indirectly, any acute care,
inpatient hospital facility within a 30-mile radius of the Premises.  No
assignment of this Lease or subletting of the Leased Assets will release Lessee
or Guarantor from any of their obligations hereunder, and Lessee and Guarantor
will remain fully liable hereunder, except as otherwise provided by Section
16.2(d)(ii).

     17.2 REQUIRED EXERCISE OF FIRST REFUSAL.  In the event that:  (a) at any
time during the Lease Term Lessee proposes to assign this Lease, sublet the
Leased Assets or effect a Disposition of Lessee under circumstances where
Lessor's consent is required by Sec-

                                       21
<PAGE>
 
tion 17.1; and (b) Lessor does not give its unconditional consent thereto; and
(c) the proposed assignee, subtenant or Acquiror has demonstrated management and
financial ability to operate the Hospital Facilities for Permitted Premises Use
and perform Lessee's and Guarantor's obligations under this Lease for the
remainder of the Lease Term; and (d) the proposed assignee, subtenant or
Acquiror does not own, operate or manage, directly or indirectly, any acute
care, inpatient hospital facility within a 30-mile radius of the Premises; then
Lessee and Guarantor will provide Lessor with the First Refusal under all of the
terms and conditions contained in Section 16.2, and the parties' respective
rights and obligations will be as provided by Section 16.2, except that the term
"Disposition" will include such assignment or subletting.

ARTICLE 18.  IN GENERAL

     18.1 TIME IS OF THE ESSENCE.  Time is of the essence, and each party will
perform its obligations hereunder in a timely manner.

     18.2 MEMORANDUM OF LEASE.  The parties will execute a short form Memorandum
of Lease in recordable form which either party may record in the Office of the
Clerk of Oklahoma County, Oklahoma.

     18.3 RELATIONSHIPS OF PARTIES.  Nothing contained in this Lease will be
deemed or construed by the parties or by any third party to create the
relationship of principal and agent, partnership, joint venture or any other
association between Lessor and Lessee (or Guarantor), and no provision contained
in this Lease nor any acts of the parties will be deemed to create any
relationship between Lessor and Lessee (or Guarantor), other than the
relationship of lessor and lessee (and guarantor).

     18.4 RIGHTS AND REMEDIES.  It is the intention of the parties specifically
to set forth their respective rights and remedies in the specific provisions of
this Lease.  However, where no specific remedy has been provided by the terms of
this Lease, Lessor, Lessee and Guarantor will retain their respective rights to
damages, specific performance or other appropriate relief.

     18.5 ENFORCEMENT EXPENSES.  Except as otherwise expressly provided herein,
in the event any party elects to incur legal expenses to enforce, defend or
interpret any provision of this Lease as between it and another party, the
prevailing party will be entitled to recover from the other party the amount of
such legal expenses, including attorneys' fees, costs and necessary
disbursements, in addition to any other relief to which such party will be
entitled.

     18.6 NOTICES.  Any notice, demand or communication required, permitted or
desired to be given hereunder will be in writing and will be deemed effectively
delivered when personally delivered, when actually received by telegraphic or
other electronic means (including telecopy and telex) or overnight courier, or
five days after being deposited in the United States mail, with postage prepaid
thereon, by certified or registered mail, return receipt requested, addressed as
follows:

                                       22
<PAGE>
 
     IF TO LESSOR:    Midwest City Memorial Hospital Authority
                    c/o The City of Midwest City
                    Post Office Box 10570
                    Midwest City, OK 73140-1570
                    Attention: Secretary

     WITH A COPY TO:     Buchanan Ingersoll P.C.
                    101 East Kennedy Blvd., Suite 1030
                    Tampa, FL 33602
                    Attention:  James J. Kennedy, III, Esq.

     IF TO LESSEE OR
     TO GUARANTOR:  Health Management Associates, Inc.
                    5811 Pelican Bay Boulevard, Suite 500
                    Naples, FL 33963-2710
                    Attention: William J. Schoen
                    Chairman, President and Chief Executive Officer

     WITH A COPY TO:     Health Management Associates, Inc.
                    5811 Pelican Bay Boulevard, Suite 500
                    Naples, FL 33963-2710
                    Attention: Robb L. Smith, Esq.
                    Senior Vice President and General Counsel

or to such other address, and to the attention of such other person as any party
may designate by notice delivered in like manner.

     18.7 CHOICE OF LAW.  This Lease will be governed by and construed in
accordance with the laws of the State of Oklahoma without regard to its
principles of conflicts of laws.

     18.8 BENEFIT.  Subject to express provisions herein to the contrary, this
Lease will inure to the benefit of and be binding upon the parties hereto and
their respective legal representatives, successors and permitted assigns.

     18.9 WAIVERS AND CONSENTS.  Any waiver of any provision of this Lease and
any consent given hereunder must be in writing signed by the party sought to be
bound.  The waiver by any party of a breach or violation of any provision of
this Lease will not operate as, or be construed to constitute, a waiver of any
subsequent breach or violation of the same or any other provision hereof.  No
delay or failure on the part of any party in exercising or enforcing any right,
power or privilege hereunder will operate as a waiver thereof, nor will any
single or partial exercise of any right, power or privilege preclude any other
or further exercise of any other right, power or privilege.

     18.10     SEVERABILITY.  In the event any provision of this Lease is held
to be invalid, illegal or unenforceable for any reason and in any respect, such
invalidity, illegality or unenforceability will in no event affect, prejudice or
disturb the validity of the remainder of this Lease, which will be and remain in
full force and effect, enforceable in accordance with its terms.

                                       23
<PAGE>
 
     18.11     INFERENCES.  Inasmuch as this Lease is the result of negotiations
between sophisticated parties of equal bargaining power represented by counsel,
no inference in favor of or against any party will be drawn from the fact that
any portion of this Lease has been drafted by or on behalf of such party.

     18.12     ENTIRE AGREEMENT.  This Lease and the Definitive Agreement
supersede all previous agreements and constitute the entire agreement of
whatsoever kind or nature existing between the parties representing the within
subject matter, and no party will be entitled to benefits other than those
specified herein and therein.  The parties specifically acknowledge that in
entering into and executing this Lease, the parties rely solely upon the
representations and agreements contained herein and therein and no others.  All
prior representations or agreements, whether written or oral, not expressly
referenced herein are superseded unless and until made in writing and signed by
Lessor, Lessee and Guarantor.

     18.13     AMENDMENT.  This Lease may be amended, and the terms hereof may
be modified, only by a writing executed by each of the parties hereto, and any
matter referred to herein as mutually agreed to or designated by the parties
must be evidenced by such a writing.

     18.14     COUNTERPARTS.  This Lease, and any document or instrument
required or permitted hereunder, may be executed in counterparts, each of which
will be deemed an original and all of which together will constitute but one and
the same instrument.

     IN WITNESS WHEREOF, the parties have caused this Lease to be executed by
their authorized officers, all as of the date and year first above written.

                         MIDWEST CITY MEMORIAL HOSPITAL AUTHORITY,
                         AN OKLAHOMA PUBLIC TRUST


                         By:_________________________

                         Title:______________________

                         MIDWEST CITY HMA, INC.


                         By:__________________________

                         Title:_______________________


                         HEALTH MANAGEMENT ASSOCIATES, INC.


                         By:__________________________
 
                        Title:________________________

                                       24
<PAGE>
 
State of Oklahoma
County of Oklahoma

    Personally appeared before me, the undersigned authority in and for the said
County and State, on this _____ day of May, 1996, within my jurisdiction, the
within named ______________________, who acknowledged that he is the
___________________ of MIDWEST CITY MEMORIAL HOSPITAL AUTHORITY, an Oklahoma
public trust, and that for and on behalf of the said public trust, and as its
act and deed, he executed the foregoing instrument, after first having been duly
authorized by said public trust so to do.


                        _______________________________ 
                        (Signature of notarial officer)
(Seal, if any)
                        _______________________________  
                        Title (and Rank)
                        (My commission expires:          )



State of Oklahoma
County of Oklahoma

    Personally appeared before me, the undersigned authority in and for the said
County and State, on this _____ day of May, 1996, within my jurisdiction, the
within named ______________________, who acknowledged that he is the
___________________ of MIDWEST CITY HMA, INC., an Oklahoma corporation, and that
for and on behalf of the said corporation, and as its act and deed, he executed
the foregoing instrument, after first having been duly authorized by said
corporation so to do.


                        _______________________________  
                        (Signature of notarial officer)
(Seal, if any)
 
                        _______________________________ 
                        Title (and Rank)
                        (My commission expires:          )

                                       25
<PAGE>
 
State of Oklahoma
County of Oklahoma

    Personally appeared before me, the undersigned authority in and for the said
County and State, on this _____ day of May, 1996, within my jurisdiction, the
within named ______________________, who acknowledged that he is the
___________________ of HEALTH MANAGEMENT ASSOCIATES, INC., a Delaware
corporation, and that for and on behalf of the said corporation, and as its act
and deed, he executed the foregoing instrument, after first having been duly
authorized by said corporation so to do.


                        _______________________________  
                        (Signature of notarial officer)
(Seal, if any)
 
                        _______________________________ 
                        Title (and Rank)
                        (My commission expires:          )

                                       26
<PAGE>
 
                                    CONSENT


    The City of Midwest City, Oklahoma, hereby consents to the sublease of the
Leased Assets owned by it pursuant to, and subject to all of the terms and
conditions of, the foregoing Lease Agreement.


                    THE CITY OF MIDWEST CITY, OKLAHOMA


                    By:_____________________

                    Title:__________________



State of Oklahoma
County of Oklahoma

    Personally appeared before me, the undersigned authority in and for the said
County and State, on this _____ day of May, 1996, within my jurisdiction, the
within named ______________________, who acknowledged that he is the
___________________ of THE CITY OF MIDWEST CITY, OKLAHOMA, an Oklahoma body
politic, and that for and on behalf of the said body politic, and as its act and
deed, he executed the foregoing instrument, after first having been duly
authorized by said body politic so to do.


 
                        _______________________________ 
                        (Signature of notarial officer)
(Seal, if any)
 
                        _______________________________ 
                        Title (and Rank)
                        (My commission expires:          )

                                       27
<PAGE>
 
                           LIST OF OMITTED SCHEDULES


     Exhibit A      Real Property Owned by City
     Exhibit B      Real Property Owned by Lessor

                                       28


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