<PAGE>   1
                                                                   EXHIBIT 10.28





                            STOCK PURCHASE AGREEMENT


                                 by and between

                                NHP INCORPORATED
                                (as "Purchaser")

                                      and


                 COMMONWEALTH OVERSEAS TRADING COMPANY LIMITED
                                 (as "Seller")

                                      and
                         SHEIK MOHAMMED A. AL-TUWAIJRI
                              (the "Shareholder")





                                 March 20, 1996
<PAGE>   2




                            STOCK PURCHASE AGREEMENT


                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
<S>                                                                                                     <C>
ARTICLE I      

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

ARTICLE II    

    PURCHASE AND SALE OF SHARES   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    9
        2.1     Purchase and Sale   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    9
        2.2     Outstanding Notes and Options.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   10
        2.3     Purchase Price; Closing Payment.    . . . . . . . . . . . . . . . . . . . . . . . . . .   10
        2.4     Escrow.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   10
        2.5     Specific Performance.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   10
        2.6     Post-Closing Adjustments.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   11
        2.7     Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   11
                                                                                                                          
ARTICLE III          

    REPRESENTATIONS AND WARRANTIES CONCERNING THE COMPANY . . . . . . . . . . . . . . . . . . . . . . .   12
        3.1     Organization; Standing and Power. . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
        3.2     Subsidiaries.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
        3.3     Capitalization.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
        3.4     Authority; Noncontravention.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   13
        3.5     Governmental Consents.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   13
        3.6     Litigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
        3.7     Financial Statements.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
        3.8     Absence of Liabilities.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
        3.9     Taxes.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   15
        3.10    Property and Assets.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   16
        3.11    Patents and Trademarks.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   16
        3.12    Insurance.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   16
        3.13    Material Contracts and Obligations.   . . . . . . . . . . . . . . . . . . . . . . . . .   17
        3.14    Compliance.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   17
        3.15    Licenses, Permits and Authorizations.   . . . . . . . . . . . . . . . . . . . . . . . .   17
        3.16    ERISA and Employee Matters.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18
        3.17    Environmental Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   19
        3.18    Employees; Labor Relations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   20
</TABLE>
        
        
        
        
        
                                     - i -
<PAGE>   3
<TABLE>
<S>                                                                                                         <C>
          3.19    Absence of Changes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   20
          3.20    Accounts Receivable and Notes Receivable. . . . . . . . . . . . . . . . . . . . . . . .   21
          3.21    Appropriateness of  Payments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   21
          3.22    Powers of Attorney. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   22
          3.23    Banking.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   22
          3.24    Disclosures.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   22
                                                                                                                          
ARTICLE IV         

   REPRESENTATIONS AND WARRANTIES CONCERNING LOANS AND SERVICING RIGHTS . . . . . . . . . . . . . . . . .   24
          4.1     Approved Issuer.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   24
          4.2     Owned Mortgage Loans and Mortgage Servicing Portfolio.  . . . . . . . . . . . . . . . .   24
          4.3     Real Estate Owned.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   32
                                                                                                                          
ARTICLE V  

   REPRESENTATIONS AND WARRANTIES CONCERNING THE SELLER . . . . . . . . . . . . . . . . . . . . . . . . .   33
          5.1     Ownership of the Shares.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33
          5.2     Delivery of Good Title.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33
          5.3     Organization; Standing and Power.   . . . . . . . . . . . . . . . . . . . . . . . . . .   33
          5.4     Capitalization.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33
          5.5     Authority; Noncontravention.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33
          5.6     Governmental Consents.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   34
          5.7     Litigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   34
          5.8     Taxes.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   34
          5.9     Investment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   35
          5.10    Experience.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   35
                                                                                                                          
ARTICLE VI    

   REPRESENTATIONS AND WARRANTIES CONCERNING THE SHAREHOLDER. . . . . . . . . . . . . . . . . . . . . . .   35
          6.1     Authority; Noncontravention.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   35
          6.2     Governmental Consents.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   36
          6.3     Litigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   36

ARTICLE VII    
</TABLE>
        
        
        
        
        
                                     - ii -
<PAGE>   4
<TABLE>
<S>                                                                                                        <C>
ARTICLE VII                                                                                                

    REPRESENTATIONS AND WARRANTIES CONCERNING THE PURCHASER . . . . . . . . . . . . . . . . . . . . . . .   36
          7.1     Organization; Standing and Power.   . . . . . . . . . . . . . . . . . . . . . . . . . .   36
          7.2     Investment.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   36
          7.3     Experience.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   37
          7.4     Authority; Noncontravention.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   37
          7.5     Governmental Consents.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   37
                                                                                                                          
ARTICLE VIII    

    CONDITIONS TO THE OBLIGATIONS OF THE PURCHASER  . . . . . . . . . . . . . . . . . . . . . . . . . . .   38
          8.1     Accuracy of Representations and Warranties.   . . . . . . . . . . . . . . . . . . . . .   38
          8.2     Restraints or Prohibitions.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   38
          8.3     Compliance with Covenants.    . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   38
          8.4     Due Investigation.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   38
          8.5     Consents and Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   38
          8.6     HSR Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   39
          8.7     Litigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   39
          8.8     Board Approval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   39
          8.9     No Material Adverse Change. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   39
          8.10    Opinion of Counsel.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   39
          8.11    Update Schedules.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   39
          8.12    Certificates and Documents.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   39
          8.13    Escrow Agreement.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   40
          8.14    Compliance Certificate.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   40
          8.15    Other Matters.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   40
          8.16    Right to Cure.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   40
                                                                                                                          
ARTICLE IX    

    CONDITIONS TO THE OBLIGATIONS OF THE SELLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   40
          9.1     Accuracy of Representations and Warranties.   . . . . . . . . . . . . . . . . . . . . .   41
          9.2     HSR Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   41
                                                                                                                          
ARTICLE X    

    COVENANTS OF THE SELLER AND THE SHAREHOLDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   41
          10.1    Inspection.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   41
          10.2    Conduct of Business Pending the Closing.  . . . . . . . . . . . . . . . . . . . . . . .   41
          10.3    Third Party Consents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   44
          10.4    GNMA, FHA, Fannie Mae, Freddie Mac and Other Approvals.   . . . . . . . . . . . . . . .   44
</TABLE>
        
        
        
        
        
                                    - iii -
<PAGE>   5
<TABLE>
<S>                                                                                                          <C>
            10.5    Delivery of Disclosure Schedules.   . . . . . . . . . . . . . . . . . . . . . . . . . .   45
            10.6    Post-Closing Delivery of Disclosure Schedules.    . . . . . . . . . . . . . . . . . . .   45
            10.7    Competing Offers; Merger or Liquidation.  . . . . . . . . . . . . . . . . . . . . . . .   45
            10.8    Post-Termination Employment.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   45
                                                                                                                          
ARTICLE XI    

    OTHER COVENANTS AND INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   46
            11.1    Reasonable Efforts and Certain Obligations. . . . . . . . . . . . . . . . . . . . . . .   46
            11.2    Certain Tax Matters.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   46
                                                                                                                          
ARTICLE XII     

    REMEDIES FOR BREACHES OF THIS AGREEMENT   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
            12.1    Investigations; Survival of Representations                                             
                    and Warranties and Covenants.   . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
            12.2    Indemnification.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
            12.3    Measurement of Damages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   48
            12.4    Defense.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   48
            12.5    Remedies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   49
                                                                                                                          
ARTICLE XIII    

    TERMINATION, AMENDMENT AND WAIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   49
            13.1    Termination.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   49
            13.2    Effect of Termination.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50
                                                                                                                          
ARTICLE XIV    

    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50
            14.1    Confidentiality.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50
            14.2    Expenses.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   51
            14.3    Successors and Assigns.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   51
            14.4    Notices.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   51
            14.5    Brokers.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   51
            14.6    Entire Agreement.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
            14.7    Amendments and Waivers.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
            14.8    No Third Party Beneficiaries.   . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
            14.9    Counterparts.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
            14.10   Headings.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
            14.11   Severability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
</TABLE>
       
       
       
       
       
                                     - iv -
<PAGE>   6
<TABLE>
                          <S>     <C>                                                                                       <C>
                          14.12   Governing Law; Jurisdiction.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
                          14.13   Recitals, Schedules and Annexes.  . . . . . . . . . . . . . . . . . . . . . . . . . . .   53
                          14.14   Construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   53
</TABLE>




                                     - v -
<PAGE>   7




                            STOCK PURCHASE AGREEMENT


         This Stock Purchase Agreement (this "Agreement") is made and entered
into as of this 20th day of March, 1996, by and among NHP Incorporated, a
Delaware corporation (the "Purchaser"), Commonwealth Overseas Trading Company
Limited, a Bermuda corporation (the "Seller"), and Sheik Mohammed A.
Al-Tuwaijri, a shareholder of the Seller (the "Shareholder").

         WHEREAS, WMF Holdings Ltd., a Delaware corporation (the "Parent" and,
together with its subsidiaries, the "Company"), is wholly owned by Seller and
is engaged in the mortgage banking business; and

         WHEREAS, the Seller desires to sell to the Purchaser, and the
Purchaser desires to purchase from the Seller, 5,339 shares of the Parent's
common stock, par value $.01 per share (the "Shares"), which represent all of
the issued and outstanding capital stock of the Parent as of the date hereof;
and

         WHEREAS, the parties hereto believe that the purchase and sale of the
Shares will provide mutual benefits to the Purchaser and the Seller.

         NOW, THEREFORE, in consideration of the premises and the
representations, warranties and agreements herein contained, the parties hereby
agree as follows:

                                   ARTICLE I

                                  DEFINITIONS

         As used in and for all purposes of this Agreement, unless otherwise
indicated, each of the following terms shall have the respective meanings set
forth below.

         "Adjustment Date" shall mean the date on which an adjustment to the
Purchase Price is made in accordance with the provisions of Section 2.6 of this
Agreement and Purchaser receives the full amount of such adjustment in
immediately available funds.

         "Adjustment Interest Rate" shall mean interest at an annual rate equal
to LIBOR plus 4%.

         "Adjustment Period Interest" shall mean interest on the amount of an
adjustment to the Purchase Price pursuant to the provisions of Section 2.6 of
this Agreement computed at the Adjustment Interest Rate with respect to the
period commencing on the Closing Date and ending on the Adjustment Date.





                                     - 1 -
<PAGE>   8




         "Ancillary Agreements" shall mean all agreements required to be
executed at or prior to Closing pursuant to Articles VIII and IX of this
Agreement.

         "Approvals" shall mean any approvals, authorizations, qualifications,
consents, licenses, franchises, orders and other permits of all judicial,
governmental, quasi-governmental or regulatory entities, whether federal, state
or local, domestic or foreign.

         "Balance Sheet" shall mean the consolidated audited balance sheet of
the Company.

         "Balance Sheet Date" shall mean December 31, 1995.

         "Business Day" shall mean any day of the week other than a Saturday,
Sunday, a federal holiday or any other day on which banking institutions in the
District of Columbia are authorized by law or by executive order to be closed.

         "Closing Date" shall have the meaning set forth in Section 2.7.

         "Code" shall mean the Internal Revenue Code of 1986, as amended.

         "Collateral" shall mean the real and personal property securing a
Mortgage Loan or a bond, mortgage-backed security or other obligation relating
to a Mortgage Loan.

         "Commonwealth" shall mean Commonwealth Overseas Trading Company
Limited.

         "Company" shall mean the Parent and, unless the context otherwise
provides, each of its subsidiaries, including, without limitation, WMF Group,
WMF/Huntoon, Vienna Mortgage Corporation, a Virginia corporation, and Sheffield
Acquisition Corp., a Tennessee corporation.

         "Company Disclosure Schedule" shall mean the disclosure schedule
concerning the Company delivered by the Seller and the Shareholder to the
Purchaser pursuant to the terms of  this Agreement.

         "Company Group" shall have the meaning set forth in Section 3.16.

         "Company Pension Plans" shall have the meaning set forth in Section
3.16.

         "Company Plans" shall have the meaning set forth in Section 3.16.

         "Defect" shall mean any untruth or incorrectness of any representation
or warranty herein contained with respect to a Mortgage Loan or a pool of
Mortgage Loans or Collateral or any failure by the Company to comply in any
material respect with any applicable covenants, requirement,





                                     - 2 -
<PAGE>   9




procedure, rule, regulation or guideline of GNMA, Fannie Mae, Freddie Mac, any
PMI, FHA, HUD or any other Investor with respect to a Mortgage Loan or a
Mortgage.

         "DUS" shall mean the Fannie Mae Delegated Underwriting and Servicing
program.

         "DUS Mortgage Loans" shall mean Mortgage Loans originated under DUS.

         "Employee Benefit Plans" shall have the meaning set forth in Section
3.16.

         "Environmental Claims" shall mean any and all administrative,
regulatory or judicial actions, suits, demands, demand letters, claims, liens,
judgments, notices of noncompliance or violation, investigations (other than
internal reports prepared by the Company solely in the ordinary course of its
business and not in response to any third party action or request of any kind)
or proceedings relating in any way to any Environmental Law or any permit
issued, or any approval given, under any such Environmental Law ("Claims"),
including, without limitation, (a) any and all Claims by governmental or
regulatory authorities for enforcement, cleanup, removal, response, remedial or
other actions or damages pursuant to any applicable Environmental Law, and (b)
any and all Claims by any third party seeking damages, contribution,
indemnification, cost recovery, compensation or injunctive relief resulting
from Hazardous Materials arising from alleged injury or threat of injury to
health, safety or the environment.

         "Environmental Law" shall mean any federal, state, foreign or local
statute, law, rule, regulation, ordinance, code, guide, written policy and rule
of common law now in effect and in each case as amended, and any judicial or
administrative interpretation thereof, including any judicial or administrative
order, consent decree or judgment, relating to the environment, health, safety
or Hazardous Materials, including, without limitation, the Comprehensive
Environmental Response, Compensation and Liability Act of 1980, as amended; the
Resource Conservation and Recovery Act of 1976, as amended; the Occupational
Safety and Health Act, as amended; the Federal Water Pollution Control Act, as
amended, 33 U.S.C. Section 1251 et seq.; the Toxic Substances Control Act, 15
U.S.C. Section 2601 et seq.; the Clean Air Act, 42 U.S.C. Section 7401 et seq.;
the Safe Drinking Water Act, 42 U.S.C. Section 3803 et seq.; the Oil Pollution
Act of 1990, PUB. Law 101-380 and any state and local or foreign counterparts
or equivalents.

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

         "Escrow Account" shall mean the account to be established pursuant to
the Escrow Agreement into which Purchaser shall deposit the Escrow Fund.

         "Escrow Agent" shall mean the Person designated as the Escrow Agent 
in the Escrow Agreement.





                                     - 3 -
<PAGE>   10




         "Escrow Agreement" shall mean an agreement substantially in the form
of Exhibit A attached to this Agreement which exhibit, if not attached hereto
as of the Closing, shall be agreed to and attached hereto by no later than
March 26, 1996.

         "Escrow Fund" shall mean the NHPI Shares, constituting a portion of
the Purchase Price, which are to be deposited on the Closing Date in the Escrow
Account as a reserve to meet certain of the obligations of the Seller and the
Shareholder under Section 2.6 of this Agreement.

         "Escrow Termination Date" shall mean the third anniversary of the
Closing Date or such later date as shall be determined in accordance with the
provisions of this Agreement and the Escrow Agreement.

         "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended.

         "Expenses" shall mean the fees, costs and other expenses, including
attorney's, auditor's, broker's, or finder's fees and commissions, incurred by
a party hereto in connection with the transactions contemplated hereby, whether
or not such transactions are actually consummated.

         "Fannie Mae" shall mean Fannie Mae or any successor organization.

         "FHA" shall mean the Federal Housing Administration, an agency within
HUD, or any successor thereto and including the Federal Housing Commissioner
and the Secretary of HUD where appropriate under the FHA regulations.

         "FHA Loan" shall mean a Mortgage Loan insured in whole or in part by
the FHA.

         "Financial Statements" shall mean the Balance Sheet as of the Balance
Sheet Date and the related consolidated statements of operations and cash flows
for the twelve months then ended, together with the report thereon all
certified by KPMG Peat Marwick LLP, independent public accountants.

         "Flow Servicing Agreement" shall mean an agreement between the Company
and a Mortgage originator setting forth the terms and conditions under which
the Company agrees to buy loan servicing rights from the Mortgage originator.

         "Freddie Mac" shall mean the Federal Home Loan Mortgage Corporation or
any successor or organization.

         "GNMA" shall mean the Government National Mortgage Association or any 
successor organization.





                                     - 4 -
<PAGE>   11




         "Hazardous Material" shall mean (a) any petroleum or petroleum
products, radioactive materials, asbestos in any form that is or could become
friable, urea formaldehyde foam insulation, transformers or other equipment
that contain electric fluid containing levels of polychlorinated biphenyls and
radon gas; (b) any chemicals, materials or substances defined as or included in
the definition of "hazardous substances," "hazardous waste," "hazardous
materials," "extremely hazardous waste," "restricted hazardous waste," "toxic
substances," "toxic pollutants," "contaminants," or "pollutants," or words of
similar import, under any applicable Environmental Law; and (c) any other
chemical, material or substance, exposure to which is prohibited, limited or
regulated by any governmental or regulatory entity or which poses a threat to
health or safety.

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

         "HUD" shall mean the United States Department of Housing and Urban
Development or any successor organization.

         "Indefinite Term Warranties" shall have the meaning set forth in
Section 12.1.

         "Indemnified Purchasers" shall have the meaning set forth in Section
12.2(a).

         "Indemnified Sellers" shall have the meaning set forth in Section
12.2(b).

         "Intellectual Property Rights" shall have the meaning set forth in
Section 3.11.

         "Investor" shall mean FHA, GNMA, Fannie Mae and Freddie Mac or any
private or public investor or credit enhancer for which the Company or any of
its Subsidiaries is originating and/or servicing (or to the extent of any
continuing obligation, has in the past originated or serviced) Mortgage Loans
pursuant to a Mortgage Servicing Agreement.

         "Legal Requirements" shall mean any federal, state, county, local or
foreign law, rule, regulation, ordinance, order, decree, judgment or other
legal, judicial, regulatory or governmental requirement.

         "Liabilities" shall mean any liabilities or obligations, direct or
indirect, whether accrued, absolute, contingent or otherwise.

         "LIBOR" shall mean the London Inter-Bank Offered Rate.

         "Lien" shall mean all liens (including judgment and mechanics' liens,
regardless of whether liquidated), mortgages, assessments, security interests,
easements, claims, pledges, trusts (constructive or other), deeds of trust,
options or other charges, encumbrances or restrictions.





                                     - 5 -
<PAGE>   12





         "Loan Documents" shall mean any Mortgage Note or Mortgage or similar
instrument, and all amendments thereto, evidencing or securing a Mortgage Loan,
including hard copies where available, and all machine-readable copies on any
media.

         "Material Adverse Effect" shall mean any loss, damage or other
circumstance, occurrence, breach of representation or warranty or other event
that could have a material adverse effect on the business, property, assets,
liabilities, condition (financial or otherwise) or prospects of any Person,
individually or taken as a whole, including, but not limited to, an adverse
affect which would, in the aggregate, amount to losses or damages in the amount
of $10,000 or more.

         "Mortgage" shall mean a mortgage, deed of trust, security deed or
other security instrument on real property securing a Mortgage Note.

         "Mortgage Loan" shall mean a mortgage loan evidenced by a Mortgage
Note and secured by a Mortgage which is either an Owned Mortgage Loan or a
Mortgage Loan comprising the Mortgage Servicing Portfolio.

         "Mortgage Loan File" shall mean the credit and closing packages,
custodial documents, escrow documents, and all other documents in the
possession of the Company pertaining to a Mortgage Loan or reasonably necessary
for prudent servicing of a Mortgage Loan, in each case as required by any
Investor, PMI and its requirements, procedures, rules, regulations and
guidelines.

         "Mortgage Note" shall mean a written promise to pay a sum of money at
a fixed or variable interest rate during a specified term evidencing a Mortgage
Loan.

         "Mortgage Servicing Agreement" shall mean an agreement between the
Company and an Investor or a servicer or other party setting forth the terms
and conditions under which Mortgage Loans or other obligations relating to
Mortgage Loans have been and are to be serviced or subserviced and which may be
incorporated in general guidelines and issuances of an Investor (such as the
applicable Fannie Mae and Freddie Mac Seller/Servicer Guides) or PMI.

         "Mortgage Servicing Portfolio" shall mean, as of the date of this
Agreement, all the Mortgage Loans which have been, are and, subject to existing
Mortgage Servicing Agreements, are to be serviced or subserviced by the
Company, other than the Owned Mortgage Loans, as more particularly identified
on Schedule 3.24, and, from time to time after the date of this Agreement, as
and when Owned Mortgage Loans are delivered to Investors, such previously Owned
Mortgage Loans as well.

         "National Housing Act" shall mean the National Housing Act of 1934, as
amended.





                                     - 6 -
<PAGE>   13




         "NHPI Shares" shall mean the 210,000 shares of common stock of the
Purchaser, par value $.01 per share, all of which shares are to be deposited on
the Closing Date in the Escrow Account pursuant to the terms of this Agreement
and the Escrow Agreement.

         "Non-Originated Mortgage Loans" shall mean all Mortgage Loans which
were not originated by the Company, otherwise delivered by the Company to an
Investor or with respect to which the Company made representations and
warranties to an Investor or PMI similar to those made by an originator.

         "Notes" shall mean the promissory notes payable by the Parent to Sheik
Mohammed A. Al-Tuwaijri in the aggregate amount of US$5,000,000, copies of
which are attached to this Agreement as Exhibit B which exhibit, if not
attached hereto as of the Closing, shall be attached hereto by no later than
March 26, 1996.

         "Originated Mortgage Loans" shall mean all Mortgage Loans other than
Non-Originated Mortgage Loans.

         "Owned Mortgage Loans" shall mean all the Mortgage Loans the legal
and/or beneficial ownership interests in which are vested in the Company (or
any of its Subsidiaries) as of the date of this Agreement.  For the purpose of
this Agreement, Owned Mortgage Loans shall not include Mortgage Loans backed by
mortgage pass-through certificates guaranteed by GNMA (since such Mortgage
Loans are transferred in trust to the owner of the related GNMA guaranteed
mortgage-backed securities.)

         "Parent" shall mean WMF Holdings Ltd., a Delaware corporation.

         "Payment Notice" shall have the meaning set forth in Section 2.4.

         "Person" shall mean all natural persons, corporations, business
trusts, associations, companies, partnerships, joint ventures, governmental
entities and any other entities.

         "PMI" shall mean private mortgage insurance, credit enhancement or a
private mortgage insurer or credit enhancer, as the context may require.

         "Purchase Price" shall mean Sixteen Million United States Dollars
(US$16,000,000), equal to the sum of the Escrow Fund and immediately available
funds in the amount of US$11,800,000, subject to reduction as provided in
Section 2.6 of this Agreement, to be paid by Purchaser to Seller as
consideration for the purchase of the Shares.

         "Purchaser" shall mean NHP Incorporated.





                                     - 7 -
<PAGE>   14




         "Release" shall mean disposing, transporting, discharging, injecting,
spilling, pumping, leaking, leaching, dumping, emitting, escaping, emptying,
seeping, placing, purging and the like, into or upon any land or water or air,
or otherwise entering into the environment.

         "REO" shall mean real estate obtained by the Company in its name (or
in the name of its Subsidiaries) or on behalf of Investors in connection with
foreclosure proceedings or deed in lieu of foreclosure proceedings on Mortgage
Loans.

         "Representations and Warranties" shall mean the representations set
forth in Articles III, IV, V, VI and VII hereof.

         "Securities Act" shall mean the Securities Act of 1933, as amended.

         "Seller" shall mean Commonwealth Overseas Trading Company Limited, a
Bermuda corporation.

         "Seller Disclosure Schedule" shall mean the disclosure schedule
concerning the Seller delivered by the Seller and the Shareholder to the
Purchaser pursuant to the terms of this Agreement.

         "Seller Representation and Warranty Default Event" shall mean the
untruth, inaccuracy or other breach of any Representation or Warranty of the
Seller or the Shareholder included or provided for in this Agreement of which
notice or notices shall be given to the Seller or the Shareholder on or before
the Seller Representation and Warranty Expiration Date.  For the purposes of
this Agreement, a Seller Representation and Warranty Default Event shall be
deemed to occur in the Warranty Year in which a Notice of Claim (as defined in
the Escrow Agreement) is delivered pursuant to the terms of the Escrow
Agreement.

         "Seller Representation and Warranty Expiration Date" shall mean the
last day of the applicable Warranty Period.

         "Servicing Rights" shall mean the right to receive the servicing fee
income and any other income arising from or connected to the Mortgage Servicing
Agreements or the servicing of the Mortgage Loans in the Mortgage Servicing
Portfolio.

         "Shareholder" shall mean Sheik Mohammed A. Al-Tuwaijri.

         "Shareholder Disclosure Schedule" shall mean the disclosure schedule
concerning the Shareholder delivered by the Shareholder to the Purchaser
pursuant to the terms of  this Agreement.

         "Shares" shall mean the 5,339 shares of the Company's common stock,
par value $.01 per share, which represent all of the issued and outstanding
capital stock of the Company.





                                     - 8 -
<PAGE>   15





         "Subsidiary" shall mean (i) each corporation in which a Person owns or
controls, directly or indirectly, capital stock representing more than 10% of
the outstanding voting stock and (ii) each other partnership, joint venture,
limited liability company or partnership or other business entity  in which a
Person owns or controls, directly or indirectly, an equity, ownership or
equivalent interest representing more than 10% of the voting rights or
interests therein.   Unless otherwise indicated by context, Subsidiary shall
refer to a Subsidiary of the Parent.

         "Tax Returns" shall mean any returns, declarations, reports, claims
for refunds, or information returns or statements relating to Taxes by any
applicable tax jurisdiction (including any schedules, attachments or
amendments).

         "Taxes" shall mean any federal, state, local, or foreign income, gross
receipts, license, payroll, employment, excise, severance, stamp, occupation,
premium, windfall profits, environmental (including taxes under Code Section
59A), customs, duties, capital stock, franchise, profits, withholding, social
security (or similar), unemployment, disability, real property, personal
property, sales, use, transfer, registration, value added, alternative or
add-on minimum, estimated, or other tax of any kind whatsoever imposed on the
Company or for which the Company is liable, including any interest, penalty, or
addition thereto, whether disputed or not.

         "Warranty Period" shall have the meaning set forth in Section 12.1.

         "Warranty Year" shall have the meaning set forth in Section 2.6.

         "WMF Group" shall mean Washington Mortgage Financial Group, Ltd., a
Delaware corporation.

         "WMF/Huntoon" shall mean WMF/Huntoon, Paige Associates Limited, a
Delaware corporation.

                                   ARTICLE II

                          PURCHASE AND SALE OF SHARES

         2.1     Purchase and Sale.  Upon the terms and subject to the
conditions of this Agreement, at the Closing the Seller agrees to sell, assign,
transfer and deliver to the Purchaser, and the Purchaser agrees to purchase
from the Seller, all of such Seller's right, title and interest in and to the
Shares, free and clear of all Liens, other than restrictions on transfer of a
general nature arising under federal and state securities laws.





                                     - 9 -
<PAGE>   16





         2.2     Outstanding Notes and Options.


                 (a)      Immediately following Closing and on the
         Closing Date, the Purchaser shall contribute capital to the Company in
         an amount necessary to retire the outstanding Notes, which amounts
         shall thereupon be paid to Sheik Mohammed A. Al-Tuwaijri after the
         receipt of the original canceled Notes, or such other assurances
         satisfactory to the Purchaser, in its sole discretion. In the event
         that any of the original Notes are not delivered at Closing, Sheik
         Mohammed A.  Al-Tuwaijri agrees that the interest payable on any such
         Notes shall be reduced to a rate equal to LIBOR.

                 (b)      The Stock Option Agreement by and between the Parent
         and Shekar Narasimhan shall be terminated prior to the Closing Date
         without any recourse to the Company from and after the Closing.

         2.3     Purchase Price; Closing Payment.  Upon the terms and subject
to the conditions of this Agreement, on the Closing Date Purchaser shall pay to
Seller the Purchase Price as follows:


                 (a)      The Escrow Fund to the Escrow Account to be held
         and/or disbursed by Escrow Agent in accordance with the terms of the
         Escrow Agreement; and

                 (b)      $11,800,000, representing the amount by which the
         Purchase Price exceeds the Escrow Fund, by wire transfer of
         immediately available funds denominated in United States Dollars to an
         offshore account designated in writing by Seller at least three
         Business Days prior to the Closing Date.

         2.4     Escrow.


                 (a)      At the Closing, the Purchaser, the Seller, the
         Shareholder and Escrow Agent shall enter into an Escrow Agreement.
         The Escrow Fund shall be held, maintained and administered in
         accordance with the terms of the Escrow Agreement.

                 (b)      Disbursements of NHPI Shares from the Escrow Account
         shall be made from time to time pursuant to the terms of the Escrow
         Agreement to reflect reductions in the Purchase Price pursuant to
         Section 2.6 and Article XII of this Agreement.

         2.5     Specific Performance.  The Purchaser shall be entitled to
specific performance and or damages with respect to any breach of the
Representations and Warranties set forth in Sections 3.1, 3.2, 3.3, 3.4, 5.1,
5.2, 5.3, 5.4, 5.5, 6.1, 6.2 and 6.3, or any other section of this Agreement to
the extent that monetary damages would not be an adequate remedy (such as in
Section 10.6, where the Seller is obligated to provide schedules post-closing),
without regard to the limitations set forth in Section 2.6.





                                     - 10 -
<PAGE>   17





         2.6     Post-Closing Adjustments.  In each of the three twelve month
periods from the Closing Date until the third anniversary of the Closing Date
(each, a "Warranty Year"), the Purchaser shall be entitled to a reduction in
the Purchase Price if there shall occur one or more Seller Representation and
Warranty Default Events in any such Warrany Year, to the extent that the loss
or damage (which, with respect to certain Representations and Warranties, will
be determined according to the Escrow Agreement), plus Adjustment Period
Interest, arising or resulting from, or as a consequence of:


                 (a)      any single Seller Representation and Warranty Default
         Event, or a series of related Seller Representation and Warranty
         Default Events, exceeds $300,000, in which case the Purchase Price
         shall be reduced by such excess; and/or

                 (b)      all Seller Representation and Warranty Default
         Events, taken together (including, for the purpose of this
         calculation, all losses or damages from any event specified in Section
         2.6(a)), exceeds $600,000, in which case the Purchase Price shall be
         reduced by any such excess.

The adjustment in the Purchase Price shall be accomplished by receipt of assets
from the Escrow Fund in accordance with the Escrow Agreement or from payments
made by the Seller and/or the Shareholder in accordance with this Agreement.

         2.7     Closing.  The Closing of the sale and purchase of the Shares
under this Agreement shall take place at the offices of Swidler & Berlin,
Chartered, 3000 K Street, N.W., Washington, D.C. 20007, with pre-Closing in
escrow (pending solely the transfer of the Escrow Fund, wire transfer of the
cash portion of the Purchase Price, and the transfer of the Shares) at 10:00
a.m. on March 31, 1996, and final Closing at or before 10:00 a.m. on April 1,
1996, or at such other time, date, and place as are mutually agreeable to the
Seller and the Purchaser.  At the Closing, the Seller will deliver to the
Purchaser certificates for the Shares, duly endorsed in blank or accompanied by
stock powers or other instruments of transfer duly executed in blank and
accompanied by all necessary stock transfer stamps, and such other instruments
of transfer, conveyance and assignment requested by the Purchaser as may be
necessary or appropriate to confirm in the Purchaser legal and beneficial title
to the Shares.  The date of the Closing is hereinafter referred to as the
"Closing Date."  If at the Closing Date any of the conditions specified in
Article VIII shall not have been fulfilled, the Purchaser shall, at its sole
election, be relieved of all obligations under this Agreement without thereby
waiving any other rights it may have by reason of such failure or such
non-fulfillment, and shall also be entitled to extend the Closing Date one or
more times to facilitate efforts to meet such conditions..





                                     - 11 -
<PAGE>   18




                                 ARTICLE III

                         REPRESENTATIONS AND WARRANTIES
                             CONCERNING THE COMPANY

         The Seller and the Shareholder, jointly and severally, hereby
represent and warrant to the Purchaser as follows:

         3.1     Organization; Standing and Power.  The Parent is a corporation
duly organized, validly existing and in good standing under the laws of the
State of Delaware.  The Parent has all requisite power and authority to own,
lease and operate its properties and to carry on its business as now being
conducted.  The Parent is duly qualified as a foreign corporation to do
business, and is in good standing, in each jurisdiction where the character of
its properties owned or leased or the nature of its activities makes such
qualification necessary.  Schedule 3.1 of the Company Disclosure Schedule sets
forth the jurisdictions in which the Parent conducts business or owns or leases
properties. Copies of the Certificate of Incorporation and By-laws of the
Parent heretofore delivered to the Purchaser are accurate and complete.


         3.2     Subsidiaries.  Schedule 3.2 of the Company Disclosure Schedule
sets forth, for each Subsidiary, (i) its name and jurisdiction of
incorporation, (ii) the number of shares of authorized capital stock of each
class of its capital stock, (iii) the number of issued and outstanding shares
of each class of its capital stock, the names of the holders thereof and the
number of shares held by each such holder, (iv) the number of shares of capital
stock held in its treasury, (v) its directors and officers, and (vi) the
jurisdictions in which the conducts business or owns or leases properties.
Each Subsidiary has all requisite power and authority to own, lease and operate
its properties and to carry on its business as now being conducted.  Each
Subsidiary is duly qualified as a foreign corporation to do business, and is in
good standing, in each jurisdiction where the character of its properties owned
or leased or the nature of its activities makes such qualification necessary.
Copies of the Certificate of Incorporation and By-laws of each Subsidiary
heretofore delivered to the Purchaser are accurate and complete.  Except as set
forth on Schedule 3.2 of the Company Disclosure Schedule, the Parent has no
Subsidiaries and does not own or control, directly or indirectly, shares of
capital stock of any other corporation or any interest or investment in any
partnership, joint venture, limited liability company or partnership or other
business entity or enterprise.  Except as set forth on Schedule 3.2 of the
Company Disclosure Schedule, each Subsidiary is a corporation duly organized,
validly existing and in good standing under the laws of the State of its
organization.


         3.3     Capitalization.  The authorized capital stock of the Company,
the issued and outstanding shares of the capital stock of the Company of each
class, and the holders of record of the capital stock of the Company are as set
forth on Schedule 3.3 of the Company Disclosure Schedule. All of the issued and
outstanding shares of the Company's capital stock have been offered,





                                     - 12 -
<PAGE>   19




issued, and sold by the Company in compliance with applicable Federal and state
securities laws and all other applicable Legal Requirements.  All of the issued
and outstanding capital stock of the Company has been duly authorized and
validly issued and is fully paid and nonassessable.  Except as set forth in
Schedule 3.3 of the Company Disclosure Schedule:  (A) no subscription, warrant,
option, convertible or exchangeable security or other right or security
(contingent or otherwise) to purchase or acquire any shares of capital stock of
the Company is authorized or outstanding, (B) the Company has no obligation
(contingent or otherwise) to issue any subscription, warrant, option,
convertible or exchangeable security, or other such right or security, or to
issue or distribute to holders of any shares of its capital stock any evidences
of indebtedness or assets of the Company, (C) the Company has no obligation
(contingent or otherwise) to purchase, redeem, or otherwise acquire any shares
of its capital stock or any interest therein or to pay any dividend or make any
other distribution in respect thereof and (D) no shares of the Company's
capital stock are held in its treasury.  Except as contemplated by this
Agreement or as provided in Schedule 3.3 of the Company Disclosure Schedule, no
Person is entitled to (i) any preemptive or similar right with respect to the
issuance of any capital stock of the Company or (ii) any rights with respect to
the registration of any capital stock of the Company under the Securities Act
and no stockholder of the Company has granted options, warrants or other rights
to purchase or otherwise acquire any interest in any shares of the Company's
capital stock from such stockholder.  Except as contemplated by this Agreement,
there are no agreements, undertakings or understandings, written or oral,
between the Company and any holder of its capital stock, or among any holders
of its capital stock, relating to the acquisition (including, without
limitation, rights of first refusal or preemptive rights), disposition, or
voting of the capital stock of the Company or any Subsidiary.  Since the
Balance Sheet Date no shares of the capital stock of the Company have been
issued or retired or, in the case of treasury shares, reissued.


         3.4     Authority; Noncontravention.  The execution, delivery, and
performance of this Agreement and the Ancillary Agreements, and the
consummation of the transactions contemplated hereby and thereby, will not
violate any Legal Requirements applicable to the Company and will not conflict
with or result in any breach of any of the terms, conditions, or provisions of,
or violate or constitute a default under (with or without notice or passage of
time or both) or otherwise give any Person a basis for accelerated or increased
rights of termination or nonperformance under, or require a consent or waiver
under, its Certificate of Incorporation or By- Laws (each as amended to date
and presently in effect) or any indenture, lease, agreement, Lien or other
instrument or arrangement to which the Company is a party or by which it or any
of its properties is bound or affected, or any Legal Requirement applicable to
the Company where any such violation, conflict, breach, default, failure to
obtain a consent or waiver would, in the aggregate, reasonably be expected to
have a Material Adverse Effect on the Company.  Schedule 3.4 of the Company
Disclosure Schedule sets forth a list of all indentures, leases, agreements,
Liens, licenses, permits and other instruments requiring the consent, approval
or waiver of any Person to  any of the transactions contemplated hereby.





                                     - 13 -
<PAGE>   20





         3.5     Governmental Consents. No consent, approval, order, or
authorization of, or registration, qualification, designation, declaration, or
notice to or filing with, any judicial, governmental or regulatory authority or
entity is required on the part of the Company in connection with the execution
and delivery of this Agreement or any Ancillary Agreements, the offer, sale and
delivery of the Shares, or the other transactions to be consummated at the
Closing as contemplated by this Agreement, except as set forth on Schedule 3.5
of the Company Disclosure Schedule.


         3.6     Litigation.  Except as set forth on Schedule 3.6 of the
Company Disclosure Schedule, there is no action, suit, arbitration or
proceeding, or judicial, governmental or regulatory inquiry or investigation
pending, or, to the best knowledge of the Seller and the Shareholder, after
diligent inquiry, any basis therefor or threat thereof, against the Company,
that questions the validity of this Agreement or which may otherwise prevent or
delay the consummation of the transactions contemplated hereby or that might
result, either individually or in the aggregate, in a Material Adverse Effect,
nor is there any litigation pending, or, to the best knowledge of the Seller
and the Shareholder, after diligent inquiry, any basis therefor or threat
thereof, against the Company by reason of the past employment relationships of
any of the Company's employees or the proposed activities of the Company.
There is no outstanding judgment, order, decree, stipulation, or injunction of
any judicial, governmental or regulatory entity against or affecting the
Company or its assets or its business or any of its officers, directors, or
employees with respect to the Company's business.


         3.7     Financial Statements. The Company has furnished to the
Purchaser on Schedule 3.7 of the Company Disclosure Schedule, with respect to
(a) and (b) below, and will furnish by April 15, 1996, with respect to (c)
below:


                 (a)      a complete and correct copy of the Financial
         Statements. The Financial Statements are complete and correct, are in
         accordance with the books and records of the Company and present
         fairly the consolidated financial condition, results of operations and
         changes in financial position of the Company, as at the dates and for
         the periods indicated, and have been prepared in accordance with
         generally accepted accounting principles applied on a consistent basis
         during the periods covered thereby and prior periods;

                 (b)      interim financial statements as of February 29, 1996,
         which have been prepared from the books and records of the Company and
         certified by the Company and which present fairly, in all material
         respects, the pre-Tax income of the Company for the periods presented,
         with a tolerance level of $250,000; and

                 (c)      interim financial statements as of  March 31, 1996,
         which have been prepared from the books and records of the Company and
         certified by the Company and which present fairly, in all material
         respects, the pre-Tax income of the Company for the periods presented.





                                     - 14 -
<PAGE>   21




         3.8     Absence of Liabilities. Except as disclosed in Schedule 3.8 of
the Company Disclosure Schedule, the Company did not have, at the Balance Sheet
Date, Liabilities, except for (i) Liabilities set forth on the Balance Sheet.
Since the Balance Sheet Date, the Company has not incurred or otherwise become
subject to any Liabilities, except as permitted hereunder or as disclosed on
Schedule 3.8 of the Company Disclosure Schedule, except that DUS Loans, as set
forth on Schedule 3.24, have been made since the Balance Sheet Date.


         3.9     Taxes.  The amount shown on the Balance Sheet as provision for
taxes is sufficient in all material respects for payment of all accrued and
unpaid Taxes for the period then ended and all prior periods. Except as
disclosed on Schedule 3.9 of the Company Disclosure Schedule:


                 (a)      The Company has filed all Tax Returns that are
         required to be filed by it, such returns are true and correct and all
         Taxes shown thereon to be due or otherwise required to be paid by the
         Company have been timely paid.  No income Tax Returns of the Company
         have been audited by the Internal Revenue Service or any state,
         county, local or foreign taxing authority, and no controversy with
         respect to Taxes of any type is pending or threatened. The Company's
         net operating losses for federal income tax purposes, as set forth in
         the Financial Statements, are not subject to any limitations imposed
         by Section 382 of the Code, and consummation of the transactions
         contemplated by this Agreement or by any other agreement,
         understanding or commitment, contingent or otherwise, to which the
         Company is a party or by which it is otherwise bound will not have the
         effect of limiting the Company's ability to use such net operating
         losses in full to offset such taxable income;

                 (b)      The Company has made adequate provision on its book
         of account for all Taxes with respect to its business, properties and
         operations through the Balance Sheet Date, and the accruals for Taxes
         in the Balance Sheet are adequate to cover all liabilities for Taxes
         of the Company for all periods ending on or before the Closing Date.
         The Company has true, complete and accurate books and records which
         the Purchaser may reasonably require in connection with the
         determination of any Taxes or any claim for refund, audit,
         examination, notice of deficiency or assessment or any judicial or
         administrative proceeding relating to the Company or the transactions
         contemplated by this Agreement; and

                 (c)      The Company (i) has not filed any consent or
         agreement pursuant to Code Section 341(f), and no such consent or
         agreement will be filed at any time on or before the Closing Date;
         (ii) has not made any payments, is not obligated to make any payments
         and is not a party to any agreement that under certain circumstances
         could obligate the Company to make any payments that will not be
         deductible under Code Section 280G, (iii) is not a United States real
         property holding corporation within the meaning of Code Section
         897(c)(2); (iv) is not a party to a tax allocation or sharing
         agreement; (v) does not have any Liability for unpaid Taxes because it
         was a member of an affiliated group with the meaning of Code Section
         1504(a); (vi) has never applied for a tax ruling from a governmental
         entity





                                     - 15 -
<PAGE>   22




         and (vii) has never filed or been the subject of an election under
         Code Section 338(g) or Code Section 338(h)(10) or caused or been the
         subject of a deemed election under Code Section 338(e).

         3.10    Property and Assets.  The Company has good title to all of its
properties and assets, including all properties and assets reflected in the
Balance Sheet, except those disposed of since the date thereof in the ordinary
course of business as disclosed on Schedule 3.10 of the Company Disclosure
Schedule, and none of such properties or assets is subject to any Lien other
than those the material terms of which are described in the Balance Sheet or in
Schedule 3.10 to the Company Disclosure Schedule.


         3.11    Patents and Trademarks.  Set forth on Schedule 3.11 to the
Company Disclosure Schedule is a true and complete list of all patents, patent
applications, trademarks, service marks, trademark and service mark
applications, trade names, copyrights, copyright registrations and
applications, licenses and other intellectual property rights presently owned
or held by the Company or necessary for the conduct of the Company's business
as conducted and as proposed to be conducted, as well as any agreement under
which the Company has access to any confidential information used by the
Company in its business (collectively, the "Intellectual Property Rights"). The
Company owns, or has the right to use under the agreements or upon the terms
described in Schedule 3.11 to the Company Disclosure Schedule, all of the
Intellectual Property Rights. There is no claim or demand of any Person
pertaining to, or any action or proceeding that is pending or threatened which
challenges (or would challenge) the rights of the Company in respect of any
Intellectual Property Rights.  The business conducted or proposed to be
conducted by the Company will not cause the Company to infringe or violate any
of the patents, trademarks, service marks, trade names, copyrights, licenses,
trade secrets, or other proprietary rights of any other Person or entity.
Neither the Seller nor the Shareholder has any knowledge, after diligent
inquiry, that any employee of the Company is obligated under any contract
(including any license, covenant, or commitment of any nature), or subject to
any Legal Requirement that would conflict or interfere with (i) the performance
of such employee's duties as an officer, employee, or director of the Company,
(ii) the use of such employee's best efforts to promote the interests of the
Company or (iii) the Company's business as conducted or proposed to be
conducted. No other Person (including, without limitation, any prior employer
of any employee of the Company) has any right to or interest in any inventions,
improvements, discoveries, or other information utilized by the Company in its
business or assigned to the Company by such employee pursuant to any
nondisclosure and assignment of inventions agreement executed by such employee
or otherwise.


         3.12    Insurance. The Company maintains valid policies of workers'
compensation insurance and of insurance with respect to its properties and
business of the kinds and in the amounts not less than is customarily obtained
by corporations of established reputation engaged in the same or similar
business and similarly situated, including, without limitation, insurance
against loss, damage, fire, theft, public liability, and other risks.  Schedule
3.12 of the Company Disclosure Schedule contains





                                     - 16 -
<PAGE>   23




a true and complete list of all insurance policies and bonds and self insurance
arrangements currently in force that cover or purport to cover risks or losses
to or associated with the Company's business, operations, premises, properties,
assets, employees, agents and directors and sets forth, with respect to each
such policy, bond and self insurance arrangement, a description of the insured
loss coverage, the expiration date and time of coverage, the dollar limitations
of coverage, a general description of each deductible feature and principal
exclusion and the premiums paid and to be paid prior to expiration.


         3.13    Material Contracts and Obligations. Schedule 3.13 to the
Company Disclosure Schedule sets forth a list of all material agreements of any
nature to which the Company is a party or by which it or its properties are
bound or affected, including without limitation (a) each agreement that
requires or might require future expenditures by the Company in excess of
$10,000 or that might result in payments to the Company in excess of $10,000,
(b) all employment and consulting agreements, employee benefit, bonus, pension,
profit sharing, stock option, stock purchase, and similar plans and
arrangements, and distributor and sales representative agreements, (c) any
agreement with any stockholder, officer, or director of the Company, or any
"affiliate" or "associate" of such persons (as such terms are defined in the
rules and regulations promulgated under the Securities Act), including, without
limitation, any agreement or other arrangement providing for the furnishing of
services by, rental of real or personal property from, or otherwise requiring
payments to, any such Person and (d) any agreement relating to the Intellectual
Property Rights. The Company has delivered to the Purchaser true, correct and
complete copies of all of the foregoing agreements.  All of such agreements,
instruments and contracts are (i) valid, binding, and in full force and effect
in accordance with their respective terms, and (ii) there is not any existing
default or event of default (or event that, with notice or passage of time, or
both, would constitute a default, or would constitute a basis of force majeure
or other claim of excusable delay or nonperformance).


         3.14    Compliance. The Company has , in all material respects,
complied with all Legal Requirements applicable to its present and proposed
business and has all Approvals required  thereby. There is no term or provision
of any lease, indenture, contract, agreement, Lien or instrument to which the
Company is a party or by which it or any of its properties or assets is bound
or affected, or of any provision of any Legal Requirements applicable to or
binding upon the Company, that would result in a Material Adverse Effect or in
the future is reasonably likely to result in a Material Adverse Effect.  No
employee of the Company is in violation of any term of any contract or covenant
(either with the Company or with another entity) relating to employment,
patents, proprietary information disclosure, non-competition, or
non-solicitation.


         3.15    Licenses, Permits and Authorizations.  The Company has all
material Approvals necessary to enable the Company to continue to conduct its
business as currently being conducted or proposed to be conducted.  The Company
has not received any notice from any governmental or regulatory agency or
authority to the effect that the Company is in default under any of its
Approvals.  Each of the Approvals is in full force and effect and the Company
is in material





                                     - 17 -
<PAGE>   24




compliance with all of its obligations with respect thereto, and no event has
occurred which permits, or upon the giving of notice or the lapse of time or
otherwise would permit, revocation, nonrenewal, modification, suspension or
termination of any of the foregoing.


         3.16    ERISA and Employee Matters.

                  (a)  Schedule 3.16 of the Company Disclosure Schedule
         contains a true and complete list of each "employee benefit plan," as
         defined in Section 3(3) of ERISA, and of all other employee
         compensation plans, programs, agreements or arrangements, currently
         maintained by the Company or any trade or business, whether or not
         incorporated, which is part of a controlled group within the meaning
         of Section 414(b), (c) or (m) of the Code with the Company
         (collectively, the "Company Group"), or under which any member of the
         Company Group has any liability in respect of current or former
         employees (collectively, the "Company Plans").  All the Company Plans
         which constitute employee "pension plans" as defined in Section 3(2)
         of ERISA are referred to herein as the "the Company Pension Plans."
         Each of the Company Plans is in compliance in all material respects
         with the terms thereof and the applicable provisions of ERISA and the
         Code, including any applicable qualification requirements of the Code.
         The Company Group has fulfilled its obligations under the minimum
         funding standards of ERISA and the Code with respect to each Company
         Pension Plan, and the Company Group has not incurred, and the Company
         Group does not have any knowledge of any event or condition which
         would cause the Company Group to incur, any liability to the Pension
         Benefit Guaranty Corporation, any trustee under Section 4049 of ERISA,
         or any Company Pension Plan in connection with the termination of any
         Company Pension Plan under Title IV of ERISA.  No Company Pension Plan
         has an accumulated or waived funding deficiency, or has applied for an
         extension of any amortization period within the meaning of Section 412
         of the Code and no event or condition exists which could be deemed a
         reportable event within the meaning of section 4043 of ERISA.  Each
         Company Pension Plan which is intended to be a qualified plan under
         Section 401(a) of the Code is so qualified and has received a
         favorable determination letter from the Internal Revenue Service.  The
         Company has previously delivered to the Purchaser with respect to each
         Company Plan, true and correct copies of (A) each Company Plan (or, in
         the case of an oral or informal Company Plan, a written description
         thereof); (B) the most recent annual report (Form 5500 series); (C)
         the most recent actuarial valuation report; and (iv) the most recent
         Summary Plan Description, as described in Section 102(a)(1) of ERISA.

                 (b)      The actuarial present value of accrued benefits (both
         vested and unvested) of Company Pension Plans subject to Title IV of
         ERISA does not exceed the assets of such Company Pension Plans based
         upon the actuarial assumptions used in funding such plan for the 1995
         valuation, which assumptions are reasonable in light of the experience
         of such plan.





                                     - 18 -
<PAGE>   25




                 (c)      Except as set forth on Schedule 3.16 of the Company
         Disclosure Schedule there are no pending claims or lawsuits which have
         been asserted or instituted (other than in respect of benefits due in
         the ordinary course which, in the aggregate, are not material) against
         the assets of any of the Company Plans or against the Company Group or
         any fiduciary of the Company Plans with respect to the Company Plans.

                 (d)      As of the date hereof, there are no benefits to be
         provided to current or future retirees under any "welfare benefit
         plans" within the meaning of Section 3(1) of ERISA which are
         maintained by the Company Group.

                 (e)      The Company Group has not maintained or contributed
         to, or been obligated or required to contribute to, a "multiemployer
         plan," as such term is defined in Section 3(37) of ERISA, and no
         withdrawal liability has been incurred by or asserted against any of
         the Company Group with respect to a withdrawal from any multiemployer
         pension plan, and the Company Group does not have any knowledge of any
         event of condition which would cause any of the Company Group to incur
         any such withdrawal liability.

                 (f)      Except as set forth in Schedule 3.16 of the Company
         Disclosure Schedule, no Company Plan exists which would result in the
         payment to any individual of any money or other property or rights or
         accelerate or provide any other rights or benefits to any individual
         as a result of the transactions contemplated by this Agreement.


         3.17    Environmental Matters.  Except as set forth on Schedule 3.17
of the Company Disclosure Schedule:

                 (a)      The Company has complied in all material respects
         with all applicable Environmental Laws and the requirements of any
         Approvals issued under such Environmental Laws.  There are no past,
         pending or threatened Environmental Claims against or affecting the
         Company or any real property owned, encumbered at any time by or at
         any time operated by the Company including, without limitation any of
         the Collateral.  There are no facts, circumstances, conditions or
         occurrences affecting any real property owned, encumbered at any time
         by or at any time operated by the Company or on any property adjoining
         or in the vicinity of any such real property that would reasonably be
         expected (i) to form the basis of an Environmental Claim against the
         Company or any such real property, or (ii) to cause such real property
         to be subject to any restrictions on the ownership, occupancy, use or
         transferability of such real property under any applicable
         Environmental Law.

                 (b)      Hazardous Materials have not at any time been
         generated, used, treated or stored on, or transported to or from, any
         real property owned, encumbered at any time by or at any time operated
         by the Company where such generation, use, treatment or storage has





                                     - 19 -
<PAGE>   26




         violated any Environmental Law.  Hazardous Materials have not at any
         time been Released on or from any real property where such Release has
         violated any applicable Environmental Law.  There are not now any
         underground storage tanks located on any real property owned or
         currently operated by the Company.


         3.18             Employees; Labor Relations.


                 (a)      Schedule 3.13 of the Company Disclosure Schedule
         contains a true and complete list of all contracts, agreements, plans,
         arrangements, commitments and understandings (formal and informal)
         pertaining to terms of employment, compensation, bonuses, profit
         sharing, stock purchases, stock repurchases, stock options,
         commissions, incentives, loans or loan guarantees, severance pay or
         benefits, use of the Company's property and related matters of the
         Company with any current or former officer, director, employee, agent
         or consultant, and true and complete copies of all such contracts,
         agreements, plans, arrangements and understandings have been delivered
         to Purchaser.  Schedule 3.18 of the Company Disclosure Schedule
         contains a true and complete list of all labor, collective bargaining,
         union and similar agreements under or by which the Company is
         obligated, and true and complete copies of all such agreements have
         been delivered to Purchaser.  Except as set forth on Schedules 3.13 or
         3.18 of the Company Disclosure Schedule, neither Purchaser nor the
         Company will have any responsibility for continuing any Person in the
         employ (or retaining any Person as a consultant) of the Company from
         and after the Closing or have any liability for any severance payments
         to or similar arrangements with any such Person who shall cease to be
         an employee of the Company at or prior to the Closing.

                 (b)      The Company is not engaged in any unfair labor
         practice.  There is (i) no unfair labor practice complaint pending
         against the Company or threatened against the Company, before the
         National Labor Relations Board or other governmental or regulatory
         authority, and no grievance or arbitration proceeding arising out of
         or under any collective bargaining agreement is so pending against the
         Company or threatened against the Company, (ii) no strike, labor
         dispute, slowdown or stoppage pending against the Company or
         threatened against the Company and (iii) no union representation
         question existing with respect to the employees of the Company.

         3.19    Absence of Changes.  Since the Balance Sheet Date, there has
not been:

                 (a)      Any change in the assets, Liabilities, financial
         condition, or operations of the Company from that reflected in the
         Financial Statements, except changes in the ordinary course of
         business that have not resulted, either individually or in the
         aggregate, in a Material Adverse Effect;





                                     - 20 -
<PAGE>   27




                 (b)      Any change (individually or in the aggregate), except
         in the ordinary course of business, in the contingent obligations of
         the Company by way of guaranty, endorsement, indemnity, warranty, or
         otherwise;

                 (c)      Any waiver or compromise by the Company of a valuable
         right or of a debt owed to it;

                 (d)      Any loans made by the Company to the Seller, the
         Shareholder, or any of the Company's employees, officers, directors,
         agents or consultants other than travel advances made in the ordinary
         course of business;

                 (e)      Any extraordinary increases in the compensation of
         any of the Company's employees, officers, directors, agents or
         consultants;

                 (f)      Any declaration or payment of any dividend or other
         distribution of the assets of the Company;

                 (g)      Any issuance or sale by the Company of any shares of
         its capital stock or other securities;

                 (h)      Any other event or condition of any character that
         has had or could reasonably be expected to have a Material Adverse
         Effect on the Company, or

                 (i)      Any agreement or commitment by the Company to do any
         of the things described in this Section 3.19.


         3.20    Accounts Receivable and Notes Receivable.  The accounts and
notes receivable included in the Balance Sheet represent valid claims from bona
fide transactions, incurred in the ordinary course of business, and no
counterclaims or offsetting claims with respect to such receivables are pending
or threatened.  The Company maintains reserves for losses arising from the
origination, servicing, foreclosure and liquidation of Mortgage Loans,
securities positions, repurchase and reverse repurchase agreements to the
extent the Company expects such losses may occur.  There are no reserves as of
the date of this Agreement, other than reserves with respect to DUS Loans,
although the Company does not expect losses in the amount of such reserves.
All such reserves have been determined in accordance with generally accepted
accounting principles consistently applied and are in the amounts shown in the
Balance Sheet and are sufficient to meet all reserve requirements of Investors.
Such reserves are reasonably adequate in all respects to provide for all
expected losses and comply with all applicable requirements with respect
thereto.


         3.21    Appropriateness of  Payments.  Neither the Company nor any of
its directors, officers, agents, employees or other Person associated with or
acting on behalf of the Company has (a) used





                                     - 21 -
<PAGE>   28




any corporate funds for unlawful contributions, gifts, entertainment or other
unlawful expenses relating to political activity, (b) made any direct or
indirect unlawful payments to government officials or employees, including
foreign government officials or employees, from corporate funds, (c)
established or maintained any unlawful or unrecorded fund of corporate monies
or other assets, (d) made any false or fictitious entries on the books of
account of the Company, (e) made or received any bribe, rebate, payoff,
influence payment kickback or other unlawful payment, or (f) made any other
payment, favor or gift not fully deductible for federal income tax purposes.


         3.22    Powers of Attorney.  There are no outstanding powers of
attorney executed on behalf of the Company.


         3.23    Banking.  Schedule 3.23 of the Company Disclosure Schedule
contains a true and complete list of the names and locations of all financial
institutions at which the Company maintains a checking account, deposit
account, securities account, safety deposit box or other deposit or safekeeping
arrangement, the numbers or other identification of all such accounts and
arrangements and the names of all persons authorized to draw against any funds
therein.


         3.24    Disclosures.  Neither this Agreement nor any exhibit or
schedule hereto, nor any report, certificate, or instrument furnished to any of
the Purchaser, its special counsel or any other agent or representative of the
Purchaser in connection with the transactions contemplated by this Agreement
contains or will contain any untrue statement of a material fact or omits or
will omit to state a material fact necessary in order to make the statements
contained herein or therein, in light of the circumstances under which they
were made, not misleading, including, without limiting the foregoing, the
following information set forth on Schedule 3.24 of the Company Disclosure
Schedule:


                 (a)      Bank reconciliations for all accounts which have
         exceptions greater than thirty days as at January 31, 1996;

                 (b)      For each of WMF Group and WMF/Huntoon, the Fixed
         Asset Ledger as at December 31, 1995 and February 29, 1996;

                 (c)      For each of WMF Group and WMF/Huntoon, the Servicing
         Advance (Principal, Interest, Taxes and Insurance) Aging Report as at
         February 29, 1996;

                 (d)      For each of WMF Group and WMF/Huntoon, Owned Mortgage
         Loans and Servicing Portfolio Data Disks as of December 31, 1995 and
         February 29, 1996;

                 (e)      For WMF Group, the Detail of Accounts Payable as at
         December 31, 1995 and February 29, 1996;





                                     - 22 -
<PAGE>   29




                 (f)      For each of WMF Group and WMF/Huntoon, Delinquency
         Reports for all product types (quarterly for last two years);

                 (g)      For each of WMF Group and WMF/Huntoon, Watch List
         with listing requirements  (quarterly for last two years);

                 (h)      1996 Business Plan;

                 (i)      For each of WMF Group and WMF/Huntoon, the
         Multifamily Pipeline Report  as at December 31, 1995 and February 29,
         1996;

                 (j)      DUS Risk Management Report for December 1995 and
         February 1996;

                 (k)      WMF Group Month-End Servicing Portfolio (including
         portfolio summary statistics) as at December 31, 1995 and February 29,
         1996;

                 (l)      WMF/Huntoon, Paige Associates Month End Portfolio
         (including portfolio summary statistics) as at December 31, 1995 and
         February 29, 1996;

                 (m)      WMF Group's McCracken System information as at the
         Closing Date;

                 (n)      WMF/Huntoon's FICS System information as at the
         Closing Date; and

                 (o)      List of all properties secured by Mortgage Loans
         which receive the benefits of Section 8 project based housing
         assistance payments setting forth the percentage of units covered by
         such Section 8 contract and the termination date of such Section 8
         contract as of March 15, 1996.

Neither the Seller nor the Shareholder knows of any information or fact that
has or would have a Material Adverse Effect on the assets, business, prospects,
or condition (financial or otherwise) of the Company that has not been
disclosed to the Purchaser in writing.





                                     - 23 -
<PAGE>   30




                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES
                     CONCERNING LOANS AND SERVICING RIGHTS

         The Seller and the Shareholder, jointly and severally, hereby
represent and warrant to the Purchaser as follows:

         4.1     Approved Issuer.  WMF Group is a Fannie Mae approved DUS
lender in good standing.  WMF/Huntoon is a GNMA approved issuer in good
standing.  Each of WMF Group and WMF Huntoon is (i) a FHA-approved mortgagee,
(ii) a Fannie Mae and a Freddie Mac approved seller/servicer in good standing,
and (iii) in full compliance with all of the material provisions contained in
the applicable FHA, GNMA, Fannie Mae and Freddie Mac guides, any subsequent
amendments in or to any of them, and all other applicable regulations and
Investor requirements.  Except as set forth on Schedule 4.1 of the Company
Disclosure Schedule, neither the Company nor the Seller has at any time in the
past received notice from any governmental, quasi-governmental or private
agency of pending or threatened actions or investigations which would question
the status of WMF Group or WMF Huntoon as an approved lender or issuer as
provided in this Section 4.1.  No outstanding claims exist against the Company
(directly or indirectly) from or through the FHA, GNMA or any Investors
(including, without limitation, claims under FHA multifamily co-insurance
program).  No event has occurred which, with the passage of time or the giving
of notice, or both, would result in the loss by either WMF Group or WMF Huntoon
of their qualification as an approved lender or issuer as set forth in this
Section 4.1 or of the Company or any officer, director or employee of the
Company as a contractor or as a Person otherwise permitted to transact business
with any such governmental, quasi-governmental or private agency.


         4.2     Owned Mortgage Loans and Mortgage Servicing Portfolio.


                 (a)      Description of Owned Mortgage Loans.  Set forth on
         Schedule 3.24 of the Company Disclosure Schedule is a complete and
         correct list, as of February 29, 1996, of all Owned Mortgage Loans,
         the aggregate unpaid principal of each Owned Mortgage Loan, the
         Investor and the PMI (if applicable) with respect to each Owned
         Mortgage Loan, the interest rate, maturity date, amendments,
         adjustment dates and terms (if applicable), debt service coverage
         ratios, loan to value ratios, lock-out dates, prepayment penalties,
         yield maintenance fees, servicing fees, current and previous default
         status (including, without limitation, workouts and threatened
         defaults), amounts of balloon payments, if any, due on maturity,
         descriptions of any additional Collateral beyond real property,
         fixtures and leases, and other material terms of each Owned Mortgage
         Loan, and all other information reasonably required by the Purchaser.





                                     - 24 -
<PAGE>   31




                 (b)      Description of Mortgage Servicing Portfolio.  Set
         forth on Schedule 3.24 of the Company Disclosure Schedule is a true
         and complete list, as of February 29, 1996, of each Investor with
         which the Company has a Mortgage Servicing Agreement, listing for each
         such Investor the Investor's name and the aggregate principal amount
         and number of Mortgage Loans subject to such Mortgage Servicing
         Agreement, the weighted average servicing rate, the unpaid principal
         balance, the overall interest payable by the borrower, the maturity
         date, amendments, adjustment dates and terms (if applicable), debt
         service coverage ratios, loan to value ratios, lock-out dates,
         prepayment penalties, yield maintenance fees, servicing fees, current
         and previous default status (including, without limitation, workouts
         and threatened defaults), amounts of balloon payments, if any, due on
         maturity, descriptions of any additional Collateral beyond real
         property, fixtures and leases, the applicable aggregate escrow balance
         under each such Mortgage Servicing Agreement, and other material
         terms, and listing for the Mortgage Servicing Portfolio interest rates
         by group and principal balances by age.  The Seller has made available
         to the Purchaser true and complete copies of each Mortgage Servicing
         Agreement and all amendments, modifications and extensions thereof.

                 (c)      Compliance. Each Originated Mortgage Loan, the
         related Loan Documents and Loan Files has complied with (i) all Legal
         Requirements applicable to such Mortgage Loan and (ii) the terms of
         any sales contracts with Investors by which the Mortgage Loans were
         transferred to the Investors ("Sales Agreements") and any schedule,
         statement or certificate furnished to the Investors pursuant to any of
         the Mortgage Servicing Agreements or the Sales Agreements.  Except as
         described in Schedule 4.2(c) of the Company Disclosure Schedule, each
         Mortgage Loan (i) is evidenced by an enforceable note or other
         evidence of indebtedness and is subject to no defense, offset or
         counterclaim, and (ii) is secured by a duly recorded and enforceable
         first Mortgage.  The Company has not assumed any obligations with
         respect to Non-Originated Mortgage Loans other than non-recourse
         servicing obligations.  The Company has complied with all guidelines,
         procedures, rules and regulations of FHA, GNMA, Fannie Mae, Freddie
         Mac, Investors, PMIs (if any) and/or state banking authorities
         relating to the origination, underwriting and servicing thereof, which
         are applicable to the Company.

                 (d)      No Outstanding Charges.  Except as set forth on
         Schedule 4.2(d) of the Company Disclosure Schedule, all Taxes,
         governmental assessments, insurance premiums, PMI premiums, water,
         sewer and municipal charges, leasehold payments and ground rents which
         previously became due and owing with respect to any Collateral or REO
         have been paid, or an escrow of funds identified on Schedule 3.24 of
         the Company Disclosure Schedule has been established in an amount
         sufficient to pay for every such item which remains unpaid and which
         has been assessed but is not yet due and payable.  Except as set forth
         on Schedule 4.2(d), the Company has not advanced funds, directly or
         indirectly, for the payment of any amount required under the Loan
         Documents except for interest accruing from the date





                                     - 25 -
<PAGE>   32




         of the Mortgage Note or date of disbursement of the Mortgage Loan
         proceeds, whichever is earlier, to the date which precedes by one
         month the due date of the first installment of principal and interest.

                 (e)      Original terms Unmodified.  Except as set forth in
         the Loan Documents or the Loan Files and identified on Schedule 4.2(e)
         of the Company Disclosure Schedule, the terms of each Mortgage Note
         and Mortgage have not been impaired, waived, altered or modified in
         any respect from the date of their origination except by a written
         instrument, which written instrument has been recorded if recordation
         is necessary to protect the interests of the owner thereof.  The
         substance of any such waiver, alteration or modification has been
         communicated to and approved in writing by (i) the relevant Investor
         and PMI (if any), to the extent required by the relevant Investor and
         PMI requirements, and (ii) the title insurer, to the extent required
         by the relevant policies, and its terms are reflected in the Loan
         Documents or the applicable Loan Files.  Except as set forth in the
         Loan Documents or the Loan Files and identified on Schedule 4.2(e) of
         the Company Disclosure Schedule, the Company has not (i) subordinated
         the Lien of any Mortgage Loan to any other Mortgage or Lien, (ii)
         released any portion of the Collateral from the Lien of any Mortgage
         Loan or (iii) executed any instrument of release, cancellation or
         satisfaction with respect to any Mortgage Loan.

                 (f)      Enforceability.  Except to the extent that the
         enforceability  may be affected by bankruptcy or other laws affecting
         the rights of creditors generally, each of the Originated Mortgage
         Loans and Loan Documents and, to the best of Seller's and
         Shareholder's knowledge, each Non-Originated Mortgage Loan, is
         enforceable in accordance with its terms and the exercise of any right
         thereunder will not render the Mortgage Loan or Loan Documents
         unenforceable, in whole or in part, or subject to any right of
         rescission, and no such right of rescission has been asserted with
         respect thereto.

                 (g)      No Recourse.  Except as set forth on Schedule 4.2(g)
         of the Company Disclosure Schedule, and with respect to DUS Mortgage
         Loans, none of the Servicing Rights is subject to recourse against the
         Company for losses on liquidation of a Mortgage Loan, borrower
         defaults or repurchase obligations upon the occurrence of non-payment
         or other events, and the Company has no obligation or recourse to any
         Person to which it may have sold or transferred any Mortgage Loans or
         Servicing Rights.  For the purposes of this Section 4.2(g), "recourse"
         shall not include industry standard representations and warranties
         (such as those concerning title, zoning, etc.), except to the extent
         that such representations and/or warranties relate generally to
         economic performance (such as those included in the DUS program).

                 (h)      Condemnation and Casualty.  Except as set forth on
         Schedule 4.2(h) of the Company Disclosure Schedule, neither the
         Seller, the Shareholder nor the Company has any





                                     - 26 -
<PAGE>   33




         notice or knowledge of (i) any proceeding pending or threatened for
         the partial or total condemnation of any of the Collateral or that all
         or any part of the Collateral has been or will be condemned or (ii)
         any casualty affecting any portion of the Collateral.

                 (i)      Doing Business.  To the best knowledge of the Seller
         and the Shareholder, after diligent inquiry, all Persons which have
         had any interest in a Mortgage Loan, whether as mortgagee, assignee,
         pledgee or otherwise, are (or, during the period in which they held
         and disposed of such interest, were) (i) in compliance with any and
         all applicable licensing requirements of the laws of the state in
         which the Collateral is located, and (ii) (1) organized under the laws
         of such state, (2) qualified to do business in such state, (3) federal
         savings and loan associations or national banks having principal
         offices in such state, or (4) not doing business in such state.  No
         act or acts by any Person which has had an interest in an Owned
         Mortgage Loan will render the Mortgage Loan or Loan Documents
         unenforceable, in whole or in part, or subject to any right of
         rescission, and no such right of rescission has been asserted with
         respect thereto.

                 (j)      Title Insurance.  To the extent required by the
         applicable Investor, each  Originated Mortgage Loan and, to the best
         of Seller's and Shareholder's knowledge, each Non-Originated Mortgage
         Loan is insured by an ALTA lender's title insurance policy or other
         generally acceptable form of policy or insurance acceptable to the
         relevant Investor, containing such endorsements and affirmative
         insurance as is customary for similar transactions; each such title
         insurance policy is issued by a title insurer acceptable to the
         applicable Investor qualified to do business in the jurisdiction where
         the Collateral is located, and insures the originator and its
         successors and assigns as to the first priority Lien of the Mortgage
         in the original principal amount of  the Mortgage Loan subject only to
         those Liens  shown on the title policy and approved in writing by the
         Investor.  The applicable Investor, as assignee of the originator's
         rights, is an insured of such lender's title insurance policy, and
         such lender's policy is in full force and effect.  Neither the Company
         nor any prior servicer has committed or suffered any act or omission
         which would impair the coverage of such lender's policy.

                 (k)      No Payment Defaults.  Except as set forth on Schedule
         4.2(k) of the Company Disclosure Schedule, there are no payment
         defaults under the Loan Documents nor any events which, with the
         giving of notice or the passage of time, or both, would constitute a
         payment default.

                 (l)      Deeds of Trust.  In the event a Mortgage Loan is
         secured by a deed of trust, all applicable requirements of law with
         respect to the trustee service under such deed of trust have been
         complied with or, if not complied with, can be cured solely by
         substituting trustees thereunder and by filing a substitution of
         trustee document in the appropriate filing or recording office.





                                     - 27 -
<PAGE>   34





                 (m)      Insurance.  The Collateral securing each of the
         Mortgage Loans has been covered by policies of hazard, builders' risk,
         all-risk property and flood insurance, to the extent required by all
         applicable Legal Requirements or Investor or PMI requirements
         applicable to such Mortgage Loan, all in a form usual and customary in
         the industry and all of which are in full force and effect, and all
         amounts due and payable under each policy have been, or will be, paid
         prior to the Closing Date.  Any and all claims under such insurance
         policies have been submitted and processed in accordance with the
         applicable Investor requirements.  The Company has not been informed
         of any uninsured casualty losses to the premises securing the Mortgage
         Loans or any casualty losses to such premises where coinsurance has
         been, or the Company has reason to believe will be, claimed by the
         insurance company or where the loss, exclusive of contents, is greater
         than the net recovery from the casualty insurance carrier. To the best
         knowledge of the Seller and the Shareholder, all damage with respect
         to which casualty insurance proceeds have been received by or through
         the Company has been repaired or is in the process of being repaired
         with such proceeds.  Except as set forth in Schedule 4.2(m) of the
         Company Disclosure Schedule, the Company has not been informed nor
         does the Company have any independent knowledge that any property
         subject to a Mortgage has been or will be condemned in whole or in
         part.

                 (n)      Mortgage Insurance.  Each Mortgage Loan which is
         represented on Schedule 3.24 of the Company Disclosure Schedule to
         have FHA Insurance is insured under the National Housing Act.  As to
         each contract of FHA mortgage insurance and each Mortgage Loan which
         is represented on Schedule 3.24 of the Company Disclosure Schedule to
         be insured by PMI, the Company has complied with all applicable
         provisions of the related insurance or guarantee contract and all
         applicable Legal Requirements, the insurance or guarantee is in full
         force and effect with respect to each Mortgage Loan or related
         obligation, and there does not exist any event or condition which
         currently, or but for the passage of time or the giving of notice or
         both, can result in a revocation, impairment or reduction of or set
         off with respect to any such insurance or guarantee.

                 (o)      Escrow Accounts.  Except as set forth on Schedule
         4.2(o) of the Company Disclosure Schedule, the Company collects all
         escrows related to the Mortgage Loans.  Except as set forth on
         Schedule 4.2(o) of the Company Disclosure Schedule, all escrow
         accounts have been maintained by the Company and, to the best of the
         Seller's and Shareholder's knowledge, all prior servicers in
         accordance with all applicable Legal Requirements and the requirements
         of Investors and PMIs, and in accordance with the Mortgage Servicing
         Agreements and the Loan Documents related thereto.  Except as set
         forth on Schedule 4.2(o) of the Company Disclosure Schedule, the
         Company has credited to the account of mortgagors all interest
         required to be paid on any escrow account through the Closing Date.
         All escrow, custodial, and suspense accounts related to the Owned
         Mortgage Loans are held in the Company's name or the Investor's name
         by the Company.





                                     - 28 -
<PAGE>   35




         Schedule 4.2(o) of the Company Disclosure Schedule sets forth the
         correct account number and location of each escrow account.

                 (p)      Title to Owned Mortgage Loans.  The Company is the
         sole owner and holder of legal title to each of the Owned Mortgage
         Loans and no other Person has any interest in the Owned Mortgage Loan
         other than the applicable Investor.

                 (q)      Defaults Under FHA Loans. Except as set forth on
         Schedule 4.2(q), no defaults of any nature under the terms of any of
         the FHA Loans have occurred and are continuing or are reasonably
         expected by the Company to occur, which would entitle the Company to
         assign the FHA Loan to the FHA in exchange for mortgage insurance
         benefits.

                 (r)      Letters of Credit.  Set forth on Schedule 4.2(r) of
         the Company Disclosure Schedule is a complete and correct list of all
         letters of credit held by the Company, identifying for each the
         Investor or PMI, amount, expiration date, reason held, account party
         and other material information relating thereto.  Each such letter of
         credit is irrevocable, unconditional, fully enforceable and satisfies
         all applicable Investor requirements.

                 (s)      Original Notes.  Except as identified on Schedule
         4.2(s) of the Company Disclosure Schedule, the Company's warehousing
         lender or other Investor or a custodian therefor has physical
         possession of the executed original Mortgage Note for each Mortgage
         Loan, which Mortgage Notes are located in the location set forth in
         Schedule 4.2(s) of the Company Disclosure Schedule and are held in a
         fire-proof vault.

                 (t)      Future Advances.  Except as identified on Schedule
         4.2(t) of the Company Disclosure Schedule, the Company is under no
         obligation to make any future advances under any of the Mortgage
         Loans.  Except as identified on Schedule 4.2(t) which also identifies
         the source and amount of future funding, any mortgage amounts that may
         hereafter be required to be disbursed to the applicable borrower are
         held in escrow or other reserve accounts with or on behalf of the
         Company.  All agreements to provide future funding from Investors are
         in full force and effect and the Seller and the Shareholder has no
         reason to believe, after diligent inquiry, that such funding will not
         be available as and when necessary.

                 (u)      Zoning and Compliance.  All of the real property and
         improvements included in the Collateral securing the Originated
         Mortgage Loans and, to the best of Seller's and Shareholder's
         knowledge, all of the real property and improvements included in the
         Collateral securing the Non-Originated Mortgage Loans comply in all
         material respects with all applicable zoning, land use, environmental
         and, to the best knowledge of the Seller and the Shareholder, after
         diligent inquiry, other Legal Requirements applicable to the property
         or the related borrower as well as any regulatory agreement or
         restrictive covenant affecting the Collateral.





                                     - 29 -
<PAGE>   36





                 (v)      Usury.  Each of the Originated Mortgage Loans and, to
         the best of Seller's and Shareholder's knowledge, each of the
         Non-Originated Mortgage Loans complies with or is exempt from
         applicable Legal Requirements pertaining to usury.  The requirements
         of all applicable Legal Requirements governing consumer credit and
         truth-in-lending have been complied with respect to each Originated
         Mortgage Loan and to the best of Seller's and Shareholder's knowledge,
         with respect to each Non-Originated Mortgage Loan.

                 (w)      Structural Defects. To the best knowledge of the
         Seller and the Shareholder, after diligent inquiry, there are no
         structural defects affecting any of the improvements included in the
         Collateral securing the Mortgage Loans, other than defects for which
         adequate reserves have been established by the borrower with the
         Company which are identified on Schedule 4.2(w) of the Company
         Disclosure Schedule.

                 (x)      Financing Statements.  The Company has filed or
         caused to be filed all necessary UCC financing statements, including
         all necessary extension statements,  in the appropriate offices to
         perfect and maintain the first Lien security interest in all
         Collateral for which such filings are necessary.

                 (y)      Purchases of Owned Mortgage Loans.  Except as set
         forth on Schedule 4.2(y) of the Company Disclosure Schedule, there
         exists a binding contract or agreement providing for the purchase of
         each of the Owned Mortgage Loans by an Investor; each such contract or
         agreement is in full force and effect; there exists no basis upon
         which any of such Investors could refuse to purchase any of the Owned
         Mortgage Loans pursuant to such contracts or agreements; and neither
         the Seller nor the Shareholder has any reason to believe, after
         diligent inquiry, that any of the Owned Mortgage Loans will not be
         purchased by the applicable Investors in due course in accordance with
         such contracts or agreements.

                 (z)      Prior Claims Experience.  Except as set forth on
         Schedule 4.2(z) of the Company Disclosure Schedule, the Company has
         never been required to re-purchase any Mortgage Loan and has never
         been subject to any surcharge or experienced any deduction from the
         amount of any claim that it has presented for mortgage insurance,
         guarantee or similar benefits with respect to any defaulted Mortgage
         Loan.

                 (aa)     The Company has no Flow Servicing Agreements.

                 (bb)     Attached hereto as Schedule 4.2(bb) of the Company
         Disclosure Schedule are true and complete lists, as of March 31, 1996,
         of (i) all outstanding loan commitments, other than repurchase
         obligations under Mortgage Servicing Agreements and purchase
         obligations made by the Company, (ii) any commitments made by
         Investors to purchase Mortgage Loans from the Company (or to guarantee
         and purchase mortgage-backed securities with respect





                                     - 30 -
<PAGE>   37




         thereto), (iii) the discount/purchase price of each of the Investor
         commitments, and (iv) all future and option contracts.

                 (cc)     Except as set forth in Schedule 4.2(cc) of the
         Company Disclosure Schedule, the Company owns the entire right, title
         and interest in and to the servicing of each Mortgage Loan in the
         Mortgage Servicing Portfolio and the sole right to service such
         Mortgage Loans subject to the Mortgage Servicing Agreements, free and
         clear of all Liens.  Except as set forth in Schedule 4.2(cc) of the
         Company Disclosure Schedule, the Company has the full right, power and
         authority to enter into and consummate this Agreement without any
         negative impact on any of the Mortgage Servicing Agreements and to
         sell the Servicing Rights under the Mortgage Servicing Agreements,
         including the Servicing Rights to the Mortgage Loans in the Mortgage
         Servicing Portfolio and the Company is not obligated to sell all or
         any part of same to any other party.

                 (dd)     Except as set forth in Schedule 4.2(dd) of the
         Company Disclosure Schedule, the Company has not received notice of a
         servicing impropriety for any Mortgage Loan in the Mortgage Servicing
         Portfolio, and each Mortgage Loan serviced by the Company has been
         properly serviced and accounted for in all respects in accordance with
         standard industry practices.  To the extent that any applicable Legal
         Requirement in any jurisdiction or of FHA, GNMA, Fannie Mae, Freddie
         Mac, PMI or HUD requires the payment of interest on escrow accounts by
         the Company with respect to any particular Mortgage Loan, all such
         interest has been properly paid.  All amounts payable in respect of a
         Mortgage Note, Mortgage, or the property covered by a Mortgage which
         the Company is responsible for paying, directly or on behalf of a
         mortgagor, have been paid when due and payable.  All pools for which
         the Company is responsible are in compliance with all applicable GNMA,
         Fannie Mae, Freddie Mac and Investor requirements, procedures, rules,
         regulations and guidelines.  The custodial files for each Mortgage
         Loan will contain upon the Closing Date all items required by all
         applicable GNMA, Fannie Mae, Freddie Mac or Investors requirements,
         procedures, rules, regulations and guidelines for the certification of
         such pools.  Except as set forth in Schedule 4.2(dd) of the Company
         Disclosure Schedule, all GNMA pools have been certified, in accordance
         with the GNMA Mortgage-Backed Securities Guide, and are recertifiable.
         The securities backed by such pools are issued on uniform documents in
         accordance with the applicable GNMA, Fannie Mae or Freddie Mac
         requirements, procedures, rules, regulations and guidelines.  The
         principal balances outstanding and owing on the Mortgage Loans in each
         pool equal or exceed the amounts owing to the security holders of each
         pool.

                 (ee)     Each Mortgage Servicing Agreement is valid, binding
         and enforceable in accordance with its terms.  The Company has
         serviced all Mortgage Loans in accordance with all applicable Investor
         requirements.  There are no pending or threatened claims by any
         Investor against the Company relating directly or indirectly to any
         Mortgage Loan or any





                                     - 31 -
<PAGE>   38




         Mortgage Servicing Agreement.  The Company has no notice of any
         default by other parties under any Mortgage Servicing Agreement or
         Flow Servicing Agreement.  No material default of the Company exists
         under any Mortgage Servicing Agreement or Flow Servicing Agreement,
         including any default arising with notice or lapse of time, or both.

                 (ff)     Each Mortgage Loan File is complete in all material
         respects, and all monies received with respect to each Mortgage Loan
         have been properly accounted for and applied.  There are no Defects in
         any Mortgage Loan File, Mortgage Loan or pool.

                 (gg)     Except as set forth in Schedule 4.2(gg) of the
         Company Disclosure Schedule, the Company has received no notice from
         the FHA or a PMI disclaiming liability on the insurance or guaranty of
         any Mortgage Loan in the Mortgage Servicing Portfolio, and neither the
         Seller nor the Shareholder has any knowledge, after diligent inquiry,
         of any facts or circumstances which if disclosed to any such entities
         would result in such a disclaimer of liability.

                 (hh)     The Company has properly conducted, in all material
         respects, an escrow analysis for each Mortgage Loan within the 12
         month period immediately preceding the Closing Date.  All books and
         records with respect to each such Mortgage Loan are in good condition
         and are adjusted to reflect properly the results of the escrow
         analysis.  The Company has delivered notification to the mortgagor
         under each such Mortgage Loan of all payment adjustments resulting
         from such escrow analysis.

                 (ii)     All Mortgage Loans with adjustable rates, if any,
         have been timely and appropriately adjusted, in all material respects,
         and the mortgagors appropriately advised where it is the obligation of
         the Company to do so.  All buydown funds with respect to such Mortgage
         Loans have been properly applied.  All real estate taxes, assessments
         and similar charges due in respect of the property covered by each
         such Mortgage Loan having an impound account administered by the
         Company are current.

                 (jj)     No amounts are owing to HUD or any other entity with
         respect to Mortgage Loans in the Mortgage Servicing Portfolio for
         overpaid subsidies, except in the ordinary course of business and in
         an amount which in the aggregate is less than $20,000.  No amounts are
         owing to the Company by mortgagors or anyone else with respect to
         Mortgage Loans in the Mortgage Servicing Portfolio for overpaid
         subsidies.


         4.3     Real Estate Owned.  The Company does not hold any REO and no
properties are in foreclosure by the Company.





                                     - 32 -
<PAGE>   39




                                  ARTICLE V

                         REPRESENTATIONS AND WARRANTIES
                             CONCERNING THE SELLER

         The Seller and the Shareholder, jointly and severally, hereby
represent and warrant to the Purchaser as follows:

         5.1     Ownership of the Shares. The Seller owns of record and
beneficially all of the Shares and has, and at all times prior to and as of the
Closing Seller will have, good and marketable title to such Shares free and
clear of all Liens.


         5.2     Delivery of Good Title.  Upon delivery of the Shares to be
sold by Seller hereunder and payment of the Purchase Price therefor pursuant to
the terms of this Agreement, Purchaser will have good and marketable title to
such Shares at Closing free and clear of all Liens.


         5.3     Organization; Standing and Power.  The Seller is a corporation
duly organized, validly existing and in good standing under the laws of
Bermuda.  The Seller has all corporate power and authority to own, lease and
operate its properties and to carry on its business as now being conducted and
to execute, deliver and perform its obligations under this Agreement and all
Ancillary Agreements and to consummate the transactions contemplated hereby and
thereby.  The Seller is duly qualified as a foreign corporation to do business,
and is in good standing, in each jurisdiction where the character of its
properties owned or leased or the nature of its activities makes such
qualification necessary.  Copies of the Certificate of Incorporation and
By-laws of the Seller heretofore delivered to the Purchaser are accurate and
complete as of the date hereof.


         5.4     Capitalization.  The authorized capital stock of the Seller,
the validly issued and outstanding, fully paid and nonassessable shares of the
capital stock of the Seller, and the holders of record of the capital stock of
the Seller are as set forth on Schedule 5.4 of the Seller Disclosure Schedule.


         5.5     Authority; Noncontravention.  The execution, delivery, and
performance by the Seller of this Agreement and the Ancillary Agreements, and
the consummation by the Seller of the transactions contemplated hereby and
thereby, have been duly authorized by all necessary corporate action. This
Agreement and the Ancillary Agreements have been duly executed and delivered by
the Seller and constitute legal, valid and binding obligations of the Seller,
enforceable in accordance with their respective terms, except as may be limited
by applicable bankruptcy, insolvency, reorganization, moratorium and other
similar laws of general application that may affect the enforcement of
creditors' rights generally and by general equitable principles.  The execution
of and performance of the transactions contemplated by this Agreement and the
Ancillary Agreements and compliance with their provisions by the Seller will
not violate any Legal Requirement applicable to





                                     - 33 -
<PAGE>   40




the Seller and will not conflict with or result in any breach of any of the
terms, conditions, or provisions of, or violate or constitute a default under
(with or without notice or passage of time or both) or otherwise give any
Person a basis for accelerated or increased rights of termination or
nonperformance under, or require a consent or waiver under, its Certificate of
Incorporation or By- Laws (each as amended to date and presently in effect) or
any indenture, lease, agreement, Lien or other instrument or arrangement to
which the Seller is a party or by which it or any of its properties is bound or
affected.  Schedule 3.4 of the Seller Disclosure Schedule sets forth a list of
all indentures, leases, agreements, Liens, licenses, permits and other
instruments requiring the consent, approval or waiver of any Person to  any of
the transactions contemplated hereby.


         5.6     Governmental Consents. No consent, approval, order, or
authorization of, or registration, qualification, designation, declaration, or
filing with, any governmental authority is required on the part of the Seller
in connection with the execution and delivery of this Agreement, the offer,
sale, and delivery of the Shares, or the other transactions to be consummated
at the Closing, as contemplated by this Agreement, except as set forth on
Schedule 5.6 of the Seller Disclosure Schedule.


         5.7     Litigation.  Except as set forth on Schedule 5.7 of the Seller
Disclosure Schedule, there is no action, suit, or proceeding, or governmental
inquiry or investigation, pending, or, to the best of the Seller's knowledge,
any basis therefor or threat thereof, against the Seller, that questions the
validity of this Agreement or the right of the Seller to enter into or perform
its obligations under this Agreement or any Ancillary Agreement, nor is there
any litigation pending, or any basis therefor or threat thereof, against the
Seller by reason of the past employment relationships of any of the Seller's
employees, the proposed activities of the Seller, or negotiations by the Seller
with possible investors in the Seller.  There is no outstanding judgment,
order, decree, stipulation, or injunction of any governmental entity against or
affecting the Seller or its assets or its business or any of its officers,
directors, or employees with respect to the Seller's business.


         5.8     Taxes.  The amount shown in the Financial Statements as the
provision for taxes is sufficient in all material respects for payment of all
accrued and unpaid federal, state, county, local, and foreign taxes for the
period then ended and all prior periods. The Seller has filed or has obtained
presently effective extensions with respect to all Federal, state, county,
local, and foreign tax returns that are required to be filed by it, such
returns are true and correct and all taxes shown thereon to be due have been
timely paid with exceptions not material to the Seller.  Federal income Tax
Returns of the Seller have not been audited by the Internal Revenue Service,
and no controversy with respect to taxes of any type is pending or, to the best
knowledge of the Seller, threatened. The Seller's net operating losses for
federal income tax purposes, as set forth in the Financial Statements, are not
subject to any limitations imposed by Section 382 of the Code, and consummation
of the transactions contemplated by this Agreement or by any other agreement,
understanding or commitment, contingent or otherwise, to which the Seller is a
party or by which it is otherwise





                                     - 34 -
<PAGE>   41




bound will not have the effect of limiting the Seller's ability to use such net
operating losses in full to offset such taxable income.


         5.9     Investment.  Each of the Seller and the Shareholder
understands that the NHPI Shares are being issued to the Seller in compliance
with the exemption in Section 4(2) of the Securities Act for transactions by an
issuer not involving a public offering and similar exemptions under applicable
state law.  The Seller is an "accredited investor" as defined in Rule 501(a)(3)
of the regulations promulgated pursuant to the Securities Act, owns assets in
excess of $5,000,000, and was not formed for the purpose of acquiring NHPI
Shares.  The Seller is acquiring the NHPI Shares for its own account for
investment and not with a view to, or for sale in connection with, any
distribution thereof, nor with any present intention of distributing or selling
the same; and, except as contemplated by this Agreement and the exhibits and
schedules hereto, the Seller has no present or contemplated agreement,
undertaking, arrangement, obligation, indebtedness, or commitment providing for
the disposition thereof.


         5.10    Experience.  The Seller has carefully reviewed the
representations concerning the Purchaser contained in this Agreement, has read
all reports and other disclosure documents filed by the Purchaser with the
Securities and Exchange Commission pursuant to the Securities Act and the
Exchange Act which it deems necessary and appropriate, and has made detailed
inquiry concerning the Purchaser, its business, and its personnel; the officers
of the Purchaser have made available to the Seller any and all written
information that it has reasonably requested and have answered to the Seller's
satisfaction all inquiries made by the Seller; and the Seller has adequate net
worth and means of providing its current needs and contingencies to sustain a
complete loss of its investment in the Purchaser, the Seller's investment in
the NHPI Shares will not cause the Seller's overall commitment to investments
that are not readily marketable to be disproportionate to its net worth.


                                  ARTICLE VI

                         REPRESENTATIONS AND WARRANTIES
                           CONCERNING THE SHAREHOLDER

         The Shareholder hereby represents and warrants to the Purchaser as
follows:

         6.1     Authority; Noncontravention. This Agreement and the Ancillary
Agreements have been duly executed and delivered by the Shareholder and
constitute valid and binding obligations of the Shareholder enforceable in
accordance with their respective terms, except as may be limited by applicable
bankruptcy, insolvency, reorganization, moratorium and other similar laws of
general application that may affect the enforcement of creditors' rights
generally and by general equitable principles. The execution of and performance
of the transactions contemplated by this Agreement and the Ancillary Agreements
and compliance with their provisions by the Shareholder will not





                                     - 35 -
<PAGE>   42




violate any Legal Requirement applicable to the Shareholder and will not
conflict with or result in any breach of any of the terms, conditions, or
provisions of, or violate or constitute a default under, or require a consent
or waiver under any indenture, lease, agreement, Lien or other instrument or
arrangement to which the Shareholder is a party or by which he or any of his
properties is bound.  The Shareholder has the rights to receive all payments on
the Notes, is the sole payee on the Notes and is identified as such on the face
of the Notes, has the authority and power to amend the Notes, and any
amendments thereof as set forth in this Agreement shall be valid, binding and
enforceable in accordance with their respective terms.


         6.2     Governmental Consents.  No consent, approval, order, or
authorization of, or registration, qualification, designation, declaration, or
filing with, any governmental authority is required on the part of the
Shareholder in connection with the execution and delivery of this Agreement or
the other transactions to be consummated at the Closing, as contemplated by
this Agreement.


         6.3     Litigation.  Except as set forth on Schedule 6.3 of the
Shareholder Disclosure Schedule, there is no action, suit, or proceeding, or
governmental inquiry or investigation, pending, or any basis therefor or threat
thereof, against the Shareholder, that questions the validity of this Agreement
or the right of the Shareholder to enter into it or which may otherwise prevent
or delay the consummation of the transactions contemplated hereby.

  
                                 ARTICLE VII

                         REPRESENTATIONS AND WARRANTIES
                            CONCERNING THE PURCHASER

The Purchaser hereby represents and warrants to the Seller and the Shareholder
as follows:

         7.1     Organization; Standing and Power.  The Purchaser is a
corporation duly organized, validly existing and in good standing under the
laws of the State of Delaware.  The Purchaser has all requisite power and
authority to own, lease and operate its properties and to carry on its business
as now being conducted, and to execute, deliver and perform its obligations
under this Agreement and the Ancillary Agreements and to consummate the
transactions contemplated hereby and thereby.


         7.2     Investment.  The Purchaser understands that the Shares have
been issued without registration under the Securities Act or the securities
laws of any jurisdiction and that the resale or transfer of such Shares may be
restricted by federal and state securities laws. The Purchaser is acquiring the
Shares for its own account for investment and not with a view to, or for sale
in connection with, any distribution thereof, nor with any present intention of
distributing or selling the same; and, except as contemplated by this Agreement
and the exhibits and schedules hereto, the





                                     - 36 -
<PAGE>   43




Purchaser has no present or contemplated agreement, undertaking, arrangement,
obligation, indebtedness, or commitment providing for the disposition thereof.


         7.3     Experience.  The Purchaser has carefully reviewed the
representations concerning the Seller contained in this Agreement and has made
detailed inquiry concerning the Seller, its business, and its personnel; the
officers of the Seller have made available to the Purchaser any and all written
information that it has reasonably requested and have answered to the
Purchaser's satisfaction all inquiries made by the Purchaser; and the Purchaser
has adequate net worth and means of providing its current needs and
contingencies to sustain a complete loss of its investment in the Seller.


         7.4     Authority; Noncontravention.  The execution, delivery, and
performance by the Purchaser of this Agreement and the Ancillary Agreements,
and the consummation by the Purchaser of the transactions contemplated hereby
and thereby, have been duly authorized by all necessary corporate action. This
Agreement has been duly executed and delivered by the Purchaser and constitutes
a legal, valid and binding obligation of the Purchaser, enforceable in
accordance with its terms, except as may be limited by applicable bankruptcy,
insolvency, reorganization, moratorium and other similar laws of general
application that may affect the enforcement of creditors' rights generally and
by general equitable principles.  The execution of and performance of the
transactions contemplated by this Agreement and the Ancillary Agreements and
compliance with their provisions by the Purchaser will not violate any Legal
Requirement applicable to the Purchaser and will not conflict with or result in
any breach of any of the terms, conditions, or provisions of, or violate or
constitute a default under (with or without notice or passage of time or both)
or otherwise give any Person a basis for accelerated or increased rights of
termination or nonperformance under, or require a consent or waiver under, its
Certificate of Incorporation or By- Laws (each as amended to date and presently
in effect) or any indenture, lease, agreement, Lien or other instrument or
arrangement to which the Purchaser is a party or by which it or any of its
properties is bound or affected, where any such violation, conflict, breach,
default, failure to obtain a consent or waiver would have a Material Adverse
Effect on the Purchaser.


         7.5     Governmental Consents. No consent, approval, order, or
authorization of, or registration, qualification, designation, declaration, or
filing with, any governmental authority is required on the part of the
Purchaser in connection with the execution and delivery of this Agreement, the
purchase of the Shares, or the other transactions to be consummated at the
Closing, as contemplated by this Agreement, except as set forth on Schedule 7.4
of the Purchaser Disclosure Schedule.





                                     - 37 -
<PAGE>   44




                                 ARTICLE VIII

                 CONDITIONS TO THE OBLIGATIONS OF THE PURCHASER

         The obligations of the Purchaser to consummate the transactions
contemplated by this Agreement are subject to the fulfillment, or the waiver by
the Purchaser, of each of the following conditions on or before the Closing
Date:

         8.1     Accuracy of Representations and Warranties. Each
representation and warranty contained in Articles III, IV, V and VI shall be
true and correct on and as of the Closing Date with the same effect as though
such representation and warranty had been made on and as of that date.


         8.2     Restraints or Prohibitions.  There shall not be instituted and
pending or threatened any action or proceeding by or before any judicial,
governmental or regulatory entity or Investor  (i) challenging the acquisition
of the Shares by the Purchaser or otherwise seeking to restrain or prohibit the
consummation of the transactions contemplated hereby or (ii) seeking to
prohibit the direct or indirect ownership or operation by the Purchaser of all
or a material portion of the business or assets of the Company, or to compel
the Purchaser or the Company to dispose of or hold separate all or a material
portion of the business or assets of the Company or the Purchaser.


         8.3     Compliance with Covenants.  The Seller and the Shareholder
shall have complied with all covenants and agreements and satisfied all
conditions on their part to be performed or satisfied pursuant to the terms of
this Agreement and any Ancillary Agreement on or prior to the Closing Date.


         8.4     Due Investigation.  The Purchaser shall have concluded
(through its representatives, accountants, counsel and other experts) an
investigation of the business, condition (financial and other), properties,
assets, prospects, operations and affairs of the Company and shall be
satisfied, in its sole discretion, with the results thereof.


         8.5     Consents and Approvals.  All consents from third parties,
including from any judicial, governmental or regulatory entity, Investor,
landlord or other Person, necessary for the consummation of the transactions
contemplated hereby, shall have been obtained, including, without limiting the
generality of the foregoing:


                 (a)      the approval of Fannie Mae to permit the Company to
         make DUS Loans to the Purchaser and its subsidiaries and affiliates
         following the Closing; and

                 (b)      the consent of the warehousing lender to continue the
         warehousing lending facility upon the consummation of the transactions
         contemplated hereby.





                                     - 38 -
<PAGE>   45




         8.6     HSR Act.  Any waiting period (and any extension thereof)
applicable to the consummation of the transactions contemplated hereby under
the HSR Act shall have expired or been terminated.


         8.7     Litigation.  No suit, action, investigation or other
proceeding shall be pending or threatened by or before any court or
governmental or regulatory entity which could reasonably be expected to
adversely affect the ability of the Seller or the Shareholder to consummate the
transactions contemplated hereby or result in a Material Adverse Effect on the
Company.


         8.8     Board Approval.  The Board of Directors of Purchaser shall
have authorized and approved this Agreement and the transactions contemplated
hereby.


         8.9     No Material Adverse Change.  No act, event or condition shall
have occurred after the date hereof which Purchaser determines has had or could
have a Material Adverse Effect.


         8.10    Opinion of Counsel. The Purchaser shall have received (i) an
opinion from Krooth & Altman, counsel for the Company and the Shareholder and
(ii) an opinion from Appleby, Spurling & Kempe, counsel for the Seller and the
Shareholder, dated the Closing Date, addressed to the Purchaser, in a form
satisfactory to the Purchaser and its counsel.


         8.11    Update Schedules.  Prior to or on the Closing Date, the Seller
and the Shareholder will update to a date not more than three Business Days
before the Closing and disclose to the Purchaser in writing any information
which would have been required to be included in the Schedules referred to in
Articles III, IV, V and VI and was not provided prior hereto; provided,
however, that the disclosure of any untrue statement or omission shall not
prevent the Purchaser from terminating this Agreement pursuant to Section
13.1(b) hereof at any time at or prior to the Closing in respect of any
original untrue or misleading statement.


         8.12    Certificates and Documents. The Seller shall have delivered to
special counsel to the Purchaser:


                 (a)      The Certificate of Incorporation of the Seller, the
         Company and each of the Company's Subsidiaries, as amended and in
         effect prior to the Closing Date, certified by the appropriate
         governmental authority;

                 (b)      Certificates, as of the most recent practicable
         dates, as to the corporate good standing of the Seller, the Company
         and each of its Subsidiaries issued by the appropriate governmental
         authority confirming such good standing on or immediately prior to the
         Closing Date;





                                     - 39 -
<PAGE>   46




                 (c)      By-laws of the Seller, the Company and each of its
         Subsidiaries, certified by its Secretary or Assistant Secretary as of
         the Closing Date;

                 (d)      Resolutions of the Board of Directors of the Seller
         and the Company, authorizing and approving all matters in connection
         with this Agreement and the transactions contemplated hereby,
         certified by the Secretary or Assistant Secretary of the Seller as of
         the Closing Date; and

                 (e)      All other documents and instruments concerning the
         Company, the Company's Subsidiaries, the Seller and the Shareholder as
         the Purchaser may reasonably request.

         8.13    Escrow Agreement.  The Escrow Agreement shall have been
executed and delivered by the Seller.


         8.14    Compliance Certificate.  The Seller and the Shareholder shall
have delivered to the Purchaser a certificate, executed by the President of the
Seller, the President of Commonwealth and Sheik Mohammed A. Al-Tuwaijri, dated
the Closing Date, certifying to the fulfillment of the conditions specified in
subsections 8.1, 8.2, 8.3, 8.5, 8.7, 8.10 and 8.12 of this Agreement.


         8.15    Other Matters. All corporate and other proceedings in
connection with the transactions contemplated by this Agreement and all
documents and instruments incident to such transactions shall be reasonably
satisfactory in substance and form to the Purchaser and its counsel, and the
Purchaser and its counsel shall have received all such counterpart originals or
certified or other copies of such documents as they may reasonably request.


         8.16    Right to Cure.  The Purchaser shall have the right, but not
the obligation, exercisable in its sole discretion, to take any action on
behalf of the Seller or the Shareholder, which the Purchaser deems necessary or
desirable to satisfy any of the conditions set forth in this Article VIII;
provided, however, that by taking any such action the Purchaser shall not be
deemed to have waived any right or remedy for any breach by the Seller or the
Shareholder hereunder available to the Purchaser.

                                  ARTICLE IX

                  CONDITIONS TO THE OBLIGATIONS OF THE SELLER

         The obligations of the Seller to consummate the transactions
contemplated by this Agreement are subject to fulfillment, on or before the
Closing Date, of each of the following conditions:





                                     - 40 -
<PAGE>   47




         9.1     Accuracy of Representations and Warranties. Each of the
representations and warranties of the Purchaser contained in Article VII shall
be true and correct on and as of the Closing Date with the same effect as
though such representations and warranties had been made on and as of that
date.


         9.2     Opinion of Counsel. The Seller shall have received an opinion
from Swidler & Berlin, Chartered, counsel for the Purchaser, dated the Closing
Date, addressed to the Seller, concerning Section 7.4 in a form satisfactory to
the Purchaser and its counsel.


         9.3     HSR Act.  Any waiting period (and any extension thereof)
applicable to the consummation of the transactions contemplated hereby under
the HSR Act shall have expired or been terminated.


                                  ARTICLE X

                  COVENANTS OF THE SELLER AND THE SHAREHOLDER

         10.1    Inspection. The Seller shall permit the Purchaser, or any
authorized representative thereof, to visit and inspect the properties of the
Seller and the Company, including their respective  corporate and financial
records, and to discuss their businesses and finances with officers of the
Seller and/or the Company, during normal business hours following reasonable
notice and as often as may be reasonably requested.


         10.2    Conduct of Business Pending the Closing.  The Seller and the
Shareholder covenant and agree, jointly and severally, that, prior to the
Closing, unless the Purchaser shall first otherwise agree in writing or as
otherwise expressly contemplated by this Agreement:


                 (a)      The Company shall conduct its business, or take any
         action, only in the ordinary course of business and consistent with
         past practices, and shall use its best efforts to maintain and
         preserve its business organization, assets, employees and advantageous
         business relationships, to maintain all of its properties in useful
         and good condition, and to continue to be covered to the fullest
         extent under the insurance policies carried by the Company, including,
         without limitation, public liability and property damage insurance in
         effect with financially sound and reputable insurance companies in at
         least such amounts and against such risks as are currently covered by
         such policies;

                 (b)      The Company shall comply promptly with (i) all Legal
         Requirements applicable to its business or operations and (ii) all
         contracts, commitments and other agreements and instruments to which
         it is a party.





                                     - 41 -
<PAGE>   48




                 (c)      The Company shall not, directly or indirectly, do any
         of the following:  (i) except in the ordinary course of business and
         consistent with past practice, sell, pledge, license, lease dispose of
         or encumber any assets, tangible or intangible, or any interest
         therein, of the Company (including, without limitation, any
         indebtedness owned or any claims held); (ii) whether or not in the
         ordinary course of business or consistent with past practice, sell or
         dispose of any material assets of the Company; (iii) amend its
         articles of incorporation or by-laws or similar organizational
         documents; (iv) split, combine or reclassify any shares of its capital
         stock or declare, set aside or pay any dividend or distribution,
         payable in cash, stock, property or otherwise with respect to any of
         its capital stock; (v) redeem, purchase or otherwise acquire any of
         its capital stock; (vi) adopt a plan of complete or partial
         liquidation or resolutions providing for the complete or partial
         liquidation, dissolution, merger, consolidation, restructuring,
         recapitalization or other reorganization; or (vii) authorize or
         propose any of the foregoing, or enter into any contract, agreement,
         commitment, understanding or arrangement to do any of the foregoing;

                 (d)      The Company shall not, directly or indirectly, (i)
         issue, sell, pledge or dispose of, or authorize, propose or agree to
         the issuance, sale, pledge or disposition of, any shares of, or any
         options, warrants or rights of any kind to acquire any shares of, or
         any securities convertible into or exchangeable or exercisable for any
         shares of, its capital stock of any class or any other securities in
         respect of, in lieu of, or in substitution for, shares of its capital
         stock outstanding on the date hereof; (ii) acquire (by merger,
         consolidation or acquisition of stock or assets) any corporation,
         partnership or other business organization or entity or division
         thereof, or make any investment in any entity, either by purchase of
         stock or securities, contributions to capital, property transfer or
         purchase of any property or assets, other than cash management
         transactions in the ordinary course of business and consistent with
         past practice; (iii) except in the ordinary course of business and
         consistent with past practice, incur any indebtedness for borrowed
         money or issue any debt securities or assume, guarantee, endorse or
         otherwise as an accommodation become responsible for, the obligations
         of any other individual or entity, or make any loans or advances; (iv)
         authorize, recommend or propose any change in its capitalization
         (other than the incurrence of indebtedness otherwise permitted
         hereunder) or restructure or refinance any indebtedness; (v) modify or
         change in any material respect any existing material license, lease,
         contract or other document, other than in the ordinary course of
         business and consistent with past practice; or (vi) authorize or
         propose any of the foregoing, or enter into or modify any contract,
         agreement, commitment or arrangement to do any of the foregoing;

                 (e)      The Company shall not (a) adopt or amend in any
         material respect any collective bargaining, bonus, profit-sharing,
         compensation, stock option, pension, retirement, deferred
         compensation, employment or other plan, agreement, trust, fund or
         arrangement for the benefit of employees (whether or not legally
         binding) other than to comply with any applicable Legal Requirement or
         (b) pay, or make any accrual or arrangement for payment





                                     - 42 -
<PAGE>   49




         of, any increase in compensation, bonuses or special compensation of
         any kind, or any severance or termination pay to, or enter into any
         employment or loan or loan guarantee agreement with, any current or
         former officer, director, employee, consultant or agent of the
         Company;

                 (f)      The Company shall not terminate or modify, or commit
         or cause or suffer to be committed any act that will result in breach
         or violation of any term of or (with or without notice or passage of
         time, or both) constitute a default under or otherwise give any Person
         a basis for non-performance under, any indenture, mortgage, deed of
         trust, loan or credit agreement, lease, license or other agreement,
         instrument, arrangement or understanding, written or oral.  The
         Company shall refrain from becoming a party to any contract, or
         commitment other than in the ordinary course of business and
         consistent with past practice. The Company shall meet all of its
         contractual obligations in accordance with their respective terms;

                 (g)      The Company shall not purchase or enter into any
         contract to purchase any capital assets except to the extent approved
         in writing by the Purchaser;

                 (h)      The Company shall use its best efforts to obtain any
         consent, authorization or approval of, or exemption by, any Person
         required to be obtained or made by any party hereto in connection with
         the transactions contemplated hereby or the taking of any action in
         connection with the consummation thereof;

                 (i)      The Company shall not make any change in the
         accounting principles, practices, methods or policies followed by it
         or depreciation or amortization policies or rates heretofore adopted
         by it;

                 (j)      The Company shall not cancel, compromise, release or
         discharge any claim of the Company upon or against any Person or waive
         any right of the Company of material value, and not discharge any Lien
         upon any asset of the Company or compromise any debt or other
         obligation of the Company to any Person other than Liens, debts or
         obligations with respect to current liabilities of the Company;

                 (k)      The Company shall not institute, settle or agree to
         settle any action or proceeding;

                 (l)      The Seller and the Shareholder shall comply promptly
         with all applicable Legal Requirements imposed upon them with respect
         to the transactions contemplated by this Agreement, and shall
         cooperate promptly with, and furnish information to, the Purchaser in
         connection with any such requirements imposed upon the  Purchaser or
         upon any of its affiliates in connection therewith or herewith;





                                     - 43 -
<PAGE>   50





                 (m)      The Seller and the Shareholder shall promptly advise
         Purchaser orally and, within three Business Days thereafter, in
         writing of any event or circumstance that has had or may have a
         Material Adverse Effect upon the Company or may adversely affect the
         consummation of the transactions contemplated hereby ;

                 (n)      The Seller and the Shareholder shall deliver to the
         Purchaser prior to the Closing a written statement disclosing any
         untrue statement in this Agreement or any schedule hereto (or
         supplement thereto) or document furnished pursuant hereto, or any
         omission to state any material fact required to make the statements
         herein or therein contained complete and not misleading, promptly upon
         the discovery of such untrue statement or omission, accompanied by a
         written supplement to any schedule to this Agreement that may be
         affected thereby; provided, however, that the disclosure of such
         untrue statement or omission shall not prevent the Purchaser from
         terminating this Agreement pursuant to Section 12.1(c) hereof at any
         time at or prior to the Closing in respect of any untrue or misleading
         statement; and

                 (o)      Neither the Company, the Seller nor the Shareholder
         shall take, or agree, in writing or otherwise, to take any of the
         foregoing actions or any action which would make any representation or
         warranty in Articles III, IV, V or VI untrue or incorrect in any
         material respect.

         10.3    Third Party Consents.  With respect to provisions in any
Mortgage Servicing Agreements pursuant to which an Investor may terminate such
arrangements with or without a termination fee because of the transactions
contemplated herein, Seller shall, prior to the Closing Date, promptly notify
each such Investor and use its best efforts to secure the consents or waivers
of objections in writing to the transactions contemplated herein with respect
to the servicing rights for the Mortgage Loans owned by such parties; provided,
however, that no contract, including any Mortgage Servicing Agreement, shall be
amended in order to obtain any such consent, approval, authorization, waiver or
otherwise without first obtaining the written approval of the Purchaser.  Prior
to the Closing Date, the Seller shall furnish or cause the Company to obtain
all required Approvals, including without limitation, those of FHA, GNMA,
Fannie Mae, Freddie Mac, other Investors and lessors, as may be required in
order to enable the Seller to perform its obligations hereunder.  All of the
fees and costs required to secure the foregoing shall be paid by the Seller.


         10.4    GNMA, FHA, Fannie Mae, Freddie Mac and Other Approvals.
Immediately after the execution of this Agreement, the Seller shall cause the
Company to obtain any required Approvals of FHA, GNMA, Fannie Mae, Freddie Mac
and all other Investors to the transactions contemplated by this Agreement.
The Seller shall have the responsibility to cause the Company to do all things
necessary or appropriate to secure such approvals.  For purposes of compliance
with FHA, GNMA, Fannie Mae, Freddie Mac and other Investor requirements, the
transfer dates shall





                                     - 44 -
<PAGE>   51




be deemed to occur upon Closing, unless the requirements, procedures, rules,
regulations and guidelines of FHA, GNMA, Fannie Mae, Freddie Mac and any other
Investors shall otherwise require.  The Seller shall cause the Company to
follow any applicable servicing transfer provisions set forth in applicable
handbooks published by FHA, GNMA, Fannie Mae and Freddie Mac.


         10.5    Delivery of Disclosure Schedules.  As soon as possible after
the execution hereof, but in all events prior to 5:00 p.m. Washington, D.C.
time on March 28, 1996, the Seller and the Shareholder shall cause to be
delivered to the Purchaser true copies of the definitive Company Disclosure
Schedule, Seller Disclosure Schedule and Shareholder Disclosure Schedule
completing any schedules not delivered upon execution hereof.  The Purchaser
shall have a period up to and including the Closing Date to review such
schedules to determine whether they are satisfactory in form and/or content, in
the Purchaser's sole discretion.  In the event that the Purchaser determines,
in its sole discretion, that the definitive schedules are satisfactory, this
covenant shall be deemed satisfied.  In the event the Purchaser does not
determine, in its sole discretion, that the definitive schedules are
satisfactory, the Purchaser may terminate this Agreement, without any further
liability hereunder.


         10.6    Post-Closing Delivery of Disclosure Schedules.  Prior to 5:00
p.m. Washington, D.C. time on April 25, 1996, the Seller and the Shareholder
shall cause to be delivered to the Purchaser copies of the documents set forth
in Section 3.24 which provide true, complete and definitive information on the
Company as of March 31, 1996.  The Purchaser shall cooperate with the Seller
and the Shareholder in complying with the time frame set forth herein.


         10.7    Competing Offers; Merger or Liquidation. The Seller and the
Shareholder each agree that they will not, and will cause the Company not to,
directly or indirectly, through any officer, director, agent, or otherwise,
solicit, initiate or encourage the submissions of bids, offers or proposals by,
any Person with respect to an acquisition of the Company or all or any portion
of its business assets or capital stock or a merger or similar transaction, and
neither the Seller nor the Shareholder will, nor will they permit the Company
to, engage any broker, financial adviser or consultant with an incentive to
initiate or encourage proposals or offers from other Persons. Furthermore,
neither the Seller nor the Shareholder shall, nor shall they permit the Company
to, directly or indirectly, through any officer, director, agent or otherwise,
engage in negotiations concerning any such transaction with, or provide
information to, any Person other than the Purchaser and its representatives.
The Seller and Shareholder shall ensure that the Company shall not commence any
proceeding to merge, consolidate or liquidate or dissolve or obligate itself to
do so.


         10.8    Post-Termination Employment. The Seller and the Shareholder
each acknowledge and agree that after the Closing (a) neither the Purchaser nor
the Company shall be required to employ or retain any employee of the Company
or any other Person, and (b) the Purchaser, in its sole and absolute
discretion, may cause the Company to retain all, some, or none of such
employees.





                                     - 45 -
<PAGE>   52




                                  ARTICLE XI

                        OTHER COVENANTS AND INDEMNITIES


         11.1    Reasonable Efforts and Certain Obligations.  Subject to the
terms and conditions herein provided, each of the parties hereto agrees to use
its reasonable efforts to take, or cause to be taken, all action, and to do, or
cause to be done, all things necessary, proper, or advisable under applicable
laws and regulations to fulfill its obligations under this Agreement, to cause
the fulfillment of the conditions set forth in Articles VIII and IX and to
cause the consummation of the transactions contemplated hereby in accordance
with the terms and conditions hereof.  The Seller shall, at its own expense,
obtain all Approvals and give all notices necessary for transfer of the Shares
and the Servicing Rights to the Purchaser.  The Seller shall be responsible for
all transfer costs and expenses imposed by Investors in connection with the
transfer of the Shares and the Servicing Rights, including, without limitation,
the cost of obtaining Investor transfer consents and approvals (if required),
but not including assignments of Mortgages.  The Seller shall be responsible,
at its sole cost and expense, for the certification, within the time period
required by the applicable Investor, of all pools formed by the Company prior
to the Closing Date.  In addition, the Seller shall repurchase, in accordance
with Section 11.2 hereof, any Mortgage Loans which prevent a pool from being
certified within the time period required by the applicable Investor.  The
Seller shall promptly furnish financial statements and other information to the
Purchaser and to other Persons as may be reasonably necessary to obtain the
waivers, consents, releases, extensions, licenses or approvals described in
this Section 11.1.


         11.2    Certain Tax Matters.


                 (a)      Returns to be filed by the Seller.  The Seller shall
         prepare or cause to be prepared and timely file or cause to be timely
         filed all Tax Returns that are required to be filed respecting the
         Company for all taxable periods ending on or before the Closing Date.

                 (b)      Tax Liability of the Seller.  The Seller shall pay or
         cause to be paid and shall be liable for all Taxes due and payable by
         the Company on or before the Closing Date.

                 (c)      Tax Liability of the Purchaser.   The Purchaser shall
         pay or cause to be paid and shall be liable for all Taxes due and
         payable by the Company for periods commencing after the Closing Date
         and shall be entitled to all refunds received after the Closing Date.

                 (d)      Cooperation and Assistance.  Each party hereto shall
         provide the other with such assistance as may reasonably be requested
         by the requesting party in connection with the preparation and filing
         of any Tax Return, any audit or other examination by any taxing
         authority, or any judicial or administrative proceedings relating to
         liability for Taxes of the





                                     - 46 -
<PAGE>   53




         Purchaser, the Company or the affiliated group of which the Company
         and the Seller have been a part, including but not limited to, making
         available all books and records relating thereto and all employees
         having knowledge of the matters concerned and in resolving all
         disputes and audits with respect to all taxable periods relating to
         Taxes; provided, however, that the out-of-pocket costs for such
         assistance shall be paid by the requesting party.

                 (e)      Tax Sharing Agreements.  Any Tax sharing agreements
         between the Seller and the Company will be terminated as to such
         entities as of the Closing Date and will have no further effect for
         any taxable year (whether the current year, a future year, or a past
         year).

                 (f)      Tax Indemnification.  The Seller and the Shareholder,
         jointly and severally, shall indemnify the Purchaser and its
         affiliates (including the Company) and their respective officers,
         directors, employees and agents and hold them harmless from and
         against all Liabilities for Taxes of the Company for which the Seller
         is liable as provided in Section 11.2(b) and all Liabilities for
         reasonable legal fees and expenses attributable to any item.  The
         provisions of this Section 11.2(f) shall not be construed as the
         Purchaser's or the Seller's or their respective affiliates' exclusive
         remedy for the matters covered hereby, and such party or any affiliate
         may elect to seek indemnification instead under any other provision of
         this Agreement for all or any part of the matters covered hereby or to
         pursue any other remedy that may be available.


                                  ARTICLE XII

                    REMEDIES FOR BREACHES OF THIS AGREEMENT

         12.1    Investigations; Survival of Representations and Warranties and
Covenants.  Each of Representations and Warranties shall not be deemed waived
or otherwise affected by any investigation and shall survive the Closing and
remain in full force and effect until the later of the date of final resolution
of any claims timely made under this Agreement with respect to any such
Representation and Warranty or the third anniversary thereof (the "Warranty
Period"); provided that with respect to the Representations and Warranties set
forth in Sections 3.1, 3.2, 3.3, 3.4, 5.1, 5.2, 5.3, 5.4, 5.5, 6.1, 6.2 and 6.3
the ("Indefinite Term Warranties"), the Warranty Period shall be indefinite.
This Section 12.1 shall not limit any covenant or agreement of the parties
hereto which by its terms contemplates performance after the date hereof.


         12.2    Indemnification.


                 (a)      Subject to Section 12.5, the Seller and the
         Shareholder, jointly and severally, hereby indemnify, defend and hold
         harmless the Purchaser and each of its respective subsidiaries
         (including, from and after the Closing Date, the Company and its
         Subsidiaries),





                                     - 47 -
<PAGE>   54




         affiliates, directors, officers and employees (collectively, the
         "Indemnified Purchasers"), and shall reimburse the Indemnified
         Purchasers for, from and against all demands, claims, actions or
         causes of action, assessments, losses, damages, liabilities and
         Expenses, including, without limitation, interest, penalties and
         reasonable attorneys' fees, disbursements and expenses, imposed on or
         incurred by the Indemnified Purchasers, or any of them, directly or
         indirectly, by reason of:

                          (i)     any breach or alleged breach by the Seller or
                 the Shareholder of any of the Representations and Warranties
                 contained in this Agreement; or

                          (ii)    any failure or alleged failure by the Seller
                 or the Shareholder to perform any covenant, undertaking or
                 obligation hereunder.

                 (b)      The Purchaser shall indemnify, defend and hold
         harmless the Seller and the Shareholder and each of their respective
         subsidiaries, affiliates, directors, officers and employees
         (collectively, the "Indemnified Sellers"), and reimburse the
         Indemnified Sellers for, from and against all demands, claims, actions
         or causes of action, assessments, losses, damages, liabilities and
         Expenses, including, without limitation, interest, penalties and
         reasonable attorneys' fees, disbursements and expenses, imposed on or
         incurred by the Indemnified Sellers, or any of them, directly or
         indirectly, by reason of:

                          (i)     any breach or alleged breach by the Purchaser
                 of any of the Representations and Warranties contained in this
                 Agreement; or

                          (ii)    any failure or alleged failure by the
                 Purchaser to perform any covenant, undertaking or obligation
                 hereunder.

         12.3    Measurement of Damages.  In computing the amount of losses,
claims, damages, liabilities, costs and counsel fees and other expenses
described under Section 12.2, the amount of any insurance payments received by
such indemnifying party for such expenses net of any costs or deductions shall
be deducted therefrom.


         12.4    Defense.


                 (a)      If any action or claim shall be brought or asserted
         against any Indemnified Sellers under this Article XII, or any
         successors thereto in respect of which indemnity may be sought under
         this Article XII, the Indemnified Seller: (i) may assume the defense
         thereof, including the employment of counsel; and (ii) shall
         immediately notify the Purchaser, who shall assume the payment of all
         reasonable expenses of such defense.  The Purchaser shall have the
         right to employ separate counsel in any such action and participate in
         the defense thereof.





                                     - 48 -
<PAGE>   55





                 (b)      If any action or claim shall be brought or asserted
         against any Indemnified Purchasers under this Article XII, or any
         successors thereto in respect of which indemnity may be sought under
         this Article XII, the Indemnified Purchaser: (i) may assume the
         defense thereof, including the employment of counsel; and (ii) shall
         immediately notify the Seller and the Shareholder, who shall assume
         the joint and several obligation to pay  all reasonable expenses of
         such defense.

         12.5    Remedies.


                 (a)      With respect to those monetary claims, demands or
         other actions arising pursuant to those Representations and Warranties
         enumerated in Sections 12.1 other than the Indefinite Term Warranties,
         except as provided in Section 2.5, the sole and exclusive means by
         which the Purchaser or any Person or party in Pari Causa therewith may
         seek recovery from the Seller and the Shareholder pursuant to such
         claims, demands or other actions shall be by claiming rights to assets
         held under to the Escrow Fund (taking into account the deductibles as
         provided in Section 2.6); provided, however, that in the event that
         one or more Notices of Claim have been filed pursuant to the terms of
         the Escrow Agreement in any Warranty Year, the Purchaser shall be
         indemnified by the Seller and the Shareholder pursuant to the terms of
         Section 12.2 hereof but only to the extent of any remaining Escrow
         Fund plus the market value of any assets thereafter released from  the
         Escrow Account (the value of which assets shall be determined with
         respect to the NHPI Shares by multiplying the number of NHPI Shares
         released by last reported closing sales price for common stock of the
         Purchaser on the Nasdaq Stock Market on the date such shares are
         released from the Escrow Account, or, if not a trading day, on the
         immediately preceding trading day) prior to the final resolution of
         any claims which are the subject of any such  Notice of Claim.

                 (b)      Notwithstanding anything to the contrary in this
         Agreement, the Indefinite Term Warranties shall not result in any
         liability to the Shareholder (except in to the extent of his interest
         in the Escrow Fund) to the extent that such liability results from
         Beverly Hills Securities Company, Ltd., a Florida limited partnership
         (also known as Beverly Hills Securities Company, L.P.), being deemed a
         Subsidiary of the Company.

                 (c)      The indemnification provisions in this Article XII
         are in addition to, and not in derogation of, any statutory, equitable
         or common-law right or remedy any party may otherwise have for breach
         of representation, warranty, covenant or agreement.


                                  ARTICLE XIII

                       TERMINATION, AMENDMENT AND WAIVER





                                     - 49 -
<PAGE>   56





         13.1    Termination. This Agreement may be terminated at any time
prior to the Closing:


                 (a)      by mutual consent of the Purchaser and the Seller;

                 (b)      by the Purchaser if (i) there has been a material
         misrepresentation, breach of warranty or breach of covenant by the
         Seller or the Shareholder under this Agreement or (ii) any of the
         conditions precedent to Closing set forth in Article VIII have not
         been met on the Closing Date, and, in each case, the Purchaser is not
         then in material default of its obligations hereunder; or

                 (c)      by the Seller if (i) there has been a material
         misrepresentation, breach of warranty or breach of covenant by the
         Purchaser under this Agreement or (ii) any of the conditions precedent
         to Closing set forth in Article IX have not been met on the Closing
         Date, and, in each case, neither the Seller nor the Shareholder is
         then in material default of its or his obligations hereunder.

         13.2    Effect of Termination.


                 (a)      In the case of any termination of this Agreement, the
         provisions of Sections 14.1 and 14.2 shall remain in full force and
         effect.

                 (b)      Upon termination of this Agreement as provided in
         Section 13.1 (a), except as stated in Section 13.2 (a), this Agreement
         shall forthwith become void and there shall be no liability or
         obligation on the part of any party hereto or their respective
         directors, officers, employees, agents or other representatives.

                 (c)      In the event of termination of this Agreement as
         provided in Section 13.1(b) or (c), such termination shall be without
         prejudice to any rights that the terminating party or parties may have
         against the breaching party or parties or any other Person under the
         terms of this Agreement or otherwise.


                                  ARTICLE XIV

                                 MISCELLANEOUS

         14.1    Confidentiality. The Purchaser agrees that it will keep
confidential and will not disclose or divulge any confidential, proprietary, or
secret information that the Purchaser may obtain from the Seller pursuant to
financial statements, reports, and other materials submitted by the Seller to
the Purchaser pursuant to this Agreement, or pursuant to visitation or
inspection rights granted





                                     - 50 -
<PAGE>   57




hereunder, unless such information is known, or until such information becomes
known, to the public; provided, however, that a Purchaser may disclose such
information (i) to its attorneys, accountants, consultants, and other
professionals to the extent necessary to obtain their services in connection
with the transactions contemplated hereby, (ii) to any prospective purchaser of
any Shares from such Purchaser as long as such prospective purchaser agrees in
writing to be bound by the provisions of this Section, or (iii) to any
affiliate of such Purchaser or to a partner, shareholder or Subsidiary of such
Purchaser.  Notwithstanding the foregoing, the obligations specified in this
Section 14.1 shall not apply to any information that is required by law,
regulation, rule, act or order of any governmental authority or agency to be
disclosed by the Purchaser; provided, however, that the Purchaser shall provide
the Seller with sufficient advance written notice, and shall cooperate with the
Seller, in order to limit the extent of any confidential, proprietary, or
secret information disclosed or to seek a protective order or other similar
order with respect to such information.


         14.2    Expenses. Each party hereto shall pay its own Expenses, except
that the Company shall bear up to $200,000 of the third party legal and
accounting Expenses incurred by Seller to the extent that bearing such costs
does not reduce the net book value of the Company for the quarter ending March
31, 1996 below $9,500,000.


         14.3    Successors and Assigns.  Except as provided in Section 14.2,
the provisions of this Agreement shall be binding upon, and inure to the
benefit of, the respective successors, permitted assigns, heirs, executors,
legal representatives and administrators of the parties hereto.


         14.4    Notices.  All notices and other communications hereunder shall
be in writing (including telex or similar writing) and shall be deemed given if
delivered in Person or by messenger, cable, telegram or telex or facsimile
transmission or by a reputable overnight delivery service which provides for
evidence of receipt to the parties at the following addresses or telecopier
numbers (or at such other address, or telecopy number for a party as shall be
specified by like notice):


                 (a)      if to the Seller, to:

                                  Commonwealth  Overseas Trading Company Limited
                                  P.O. Box 1179
                                  Cedar House
                                  41 Cedar Avenue
                                  Hamilton HM 12, Bermuda





                                     - 51 -
<PAGE>   58




                          with a copy to:

                                  Krooth & Altman
                                  1850 M Street, N.W.
                                  Washington, D.C. 20036-5803
                                  Attn: Patrick Clancy

                 (b)      if to the Shareholder, to:

                                  Thomad Trading & Contracting Co. Ltd.
                                  P.O. Box 16296
                                  Riyadh  11464
                                  Kingdom of Saudi Arabia
                                  Attn:    Sheik Mohammed A. Al-Tuwaijri

                          with a copy to:

                                  Krooth & Altman
                                  1850 M Street, N.W.
                                  Washington, D.C. 20036-5803
                                  Attn: Patrick Clancy

                 (c)      if to the Purchaser, to:

                                  NHP Incorporated
                                  1225 Eye Street, N.W.
                                  Suite  601
                                  Washington, D.C. 20005-3945
                                  Attn: J. Roderick Heller III

                          with a copy to:

                                  Swidler & Berlin, Chartered
                                  3000 K Street, N.W., Suite 300
                                  Washington, D.C. 20007
                                  Attn: Kenneth Lore

         14.5    Brokers. Each of the Seller and the Shareholder, on the one
hand, and the Purchaser, on the other hand, (i) represents and warrants to the
other party hereto that he or it has retained no finder or broker in connection
with the transactions contemplated by this Agreement, and (ii) will indemnify
and save the other parties harmless from and against any and all claims,
liabilities or





                                     - 52 -
<PAGE>   59




obligations with respect to brokerage or finders' fees or commissions, or
consulting fees in connection with the transactions contemplated by this
Agreement asserted by any Person on the basis of any statement or
representation alleged to have been made by such indemnifying party.


         14.6    Entire Agreement.  This Agreement embodies the entire
agreement and understanding between the parties hereto with respect to the
subject matter hereof and supersedes all prior or contemporaneous agreements
and understandings, written or oral, relating to such subject matter.


         14.7    Amendments and Waivers.  Except as otherwise expressly set
forth in this Agreement, any term of this Agreement may be amended and the
observance of any term of this Agreement may be waived (either generally or in
a particular instance and either retroactively or prospectively), with the
express prior written consent of the Seller and the Purchaser.  No failure to
exercise and no delay in exercising any right, power or privilege shall operate
as a waiver thereof, nor shall any single or partial exercise of any right,
power or privilege preclude the exercise of any other right, power or
privilege. No waiver of any breach of any covenant or agreement hereunder shall
be deemed a waiver of any preceding or subsequent breach of the same or any
other covenant or agreement. The rights and remedies of each party under this
Agreement are in addition to all other rights and remedies, at law or in
equity, that such party may have against the other parties.


         14.8    No Third Party Beneficiaries.  This Agreement shall not confer
any rights or remedies on any Person other than the parties hereto and their
respective successors and permitted assigns; provided, however, that the
provisions in Article XII above concerning indemnification are intended for the
benefit of the Persons specified therein and their respective legal
representatives.


         14.9    Counterparts.   This Agreement may be executed in several
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.


         14.10   Headings. The headings of the sections, subsections, and
paragraphs of this Agreement have been added for convenience only and shall not
be deemed to be a part of this Agreement.


         14.11   Severability.  If any term or provision of this Agreement or
the application thereof to any circumstance shall, in any jurisdiction and to
any extent, be invalid or unenforceable, such term or provision shall be
ineffective as to such jurisdiction to the extent of such invalidity or
unenforceability without invalidating or rendering unenforceable such term or
provision in any other jurisdiction, the remaining terms and provisions of this
Agreement or the application of such terms and provisions to circumstances
other than those as to which it is held invalid or enforceable.


         14.12   Governing Law; Jurisdiction. This Agreement shall be governed
by and construed in accordance with the laws of the District of Columbia,
excluding that body of laws pertaining to





                                     - 53 -
<PAGE>   60




conflicts of laws. With respect to any claim arising out of this Agreement (a)
the Seller and the Purchaser each irrevocably submit to the nonexclusive
jurisdiction of the United States District Court and the courts located in the
District of Columbia, and (b) the Seller and the Purchaser each irrevocably
waive any objection which it may have at any time to the laying of  venue of
any suit, action or proceeding arising out of or relating to this Agreement
brought in such court, irrevocably waive any claim that any such suit, action
or proceeding brought in any such court has been brought in an inconvenient
forum and further irrevocably waive the right to object, with respect to such
suit, action or proceeding brought in any such court, that such court does not
have jurisdiction over such party, provided, that nothing herein shall
otherwise supersede or nullify the obligation of the parties to arbitrate any
claim specified or any related agreement referencing such Section.


         14.13   Recitals, Schedules and Annexes. The recitals, schedules,
exhibits and annexes to this Agreement are incorporated herein and, by this
reference, made a part hereof as if fully set forth at length herein.


         14.14   Construction.


                 (a)      The article, section and subsection headings used
         herein are inserted for reference purposes only and shall not in any
         way affect the meaning or interpretation of this Agreement.

                 (b)      As used in this Agreement, the masculine, feminine or
         neuter gender, and the singular or plural, shall be deemed to include
         the others whenever and wherever the context so requires.

                 (c)      For the purposes of this Agreement, unless the
         context clearly requires, "or" is not exclusive.





                                     - 54 -
<PAGE>   61




         IN WITNESS WHEREOF, the undersigned have hereunto set their hands as
of the day and year first above written.

                                      NHP INCORPORATED
                     
                     
                                      By: /s/ J. Roderick Heller, III
                                         --------------------------------------
                                         J. Roderick Heller, III
                                         Chairman and Chief Executive 
                                         Officer
                     
                                      WMF HOLDINGS LTD.
                     
                     
                                      By: /s/ Shekar Narasimhan               
                                         --------------------------------------
                                         Shekar Narasimhan, President and 
                                         Chief Executive Officer
                     
                     
                               SHAREHOLDER:
                     
                                      COMMONWEALTH OVERSEAS TRADING COMPANY 
                                      LIMITED
                     
                     
                                      By: /s/ Sheik Mohammed A. Al-Tuwaijri
                                         --------------------------------------
                                         Sheik Mohammed A. Al-Tuwaijri,
                                         Director
                     
                     
                                       /s/ Sheik Mohammed A. Al-Tuwaijri
                                      -----------------------------------------
                                      Sheik Mohammed A. Al-Tuwaijri, 
                                      individually







                                     - 55 -