##### Table of Contents



EXHIBIT 10.12

---

---

AMENDED AND RESTATED CREDIT AGREEMENT

Dated

October 30, 2003

among

ARCHSTONE-SMITH OPERATING TRUST,
as Borrower

and

ARCHSTONE-SMITH TRUST,
as Parent

and

JPMORGAN CHASE BANK,
as Administrative Agent

and
BANK OF AMERICA, N.A., and
WELLS FARGO BANK, N.A.
as Syndication Agents

and

BANK ONE, NA and
COMMERZBANK AG, NEW YORK BRANCH
as Documentation Agents

and

the Lenders Party Hereto



---

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J. P. MORGAN SECURITIES INC.,
as Lead Arranger and Sole Bookrunner





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TABLE OF CONTENTS



|                                                  |                                                                                        |  |  |  |  |  |  | 
|------------------------------------------------- | -------------------------------------------------------------------------------------- |  |  |  |  |  |  | 
|1. Definitions                                   
|2. The Loans                                     
|                                                  | 2.1 Advances                                                                          
|                                                  | 2.2 Letters of Credit                                                                 
|                                                  | 2.3 Payments                                                                          
|                                                  | 2.4 Pro Rata Treatment                                                                
|                                                  | 2.5 Non-Receipt of Funds by the Agent                                                 
|                                                  | 2.6 Sharing of Payments, Etc                                                          
|                                                  | 2.7 Fees                                                                              
|                                                  | 2.8 Money Market Borrowings                                                           
|                                                  | 2.9 Reduction of Commitment                                                           
|                                                  | 2.10 Additional Guarantees                                                            
|3. Conditions                                    
|                                                  | 3.1 All Loans                                                                         
|                                                  | 3.2 First Loan                                                                        
|                                                  | 3.3 Options Available                                                                 
|                                                  | 3.4 Designation and Conversion                                                        
|                                                  | 3.5 Special Provisions Applicable to Eurodollar Rate Borrowings and Money Market Loans
|                                                  | 3.6 Funding Offices; Adjustments Automatic                                            
|                                                  | 3.7 Funding Sources, Payment Obligations                                              
|                                                  | 3.8 Mitigation, Non-Discrimination                                                    
|4. Representations and Warranties                
|                                                  | 4.1 Organization                                                                      
|                                                  | 4.2 Financial Statements                                                              
|                                                  | 4.3 Enforceable Obligations; Authorization                                            
|                                                  | 4.4 Other Debt                                                                        
|                                                  | 4.5 Litigation                                                                        
|                                                  | 4.6 Taxes                                                                             
|                                                  | 4.7 Regulation U                                                                      
|                                                  | 4.8 Securities Act of 1933                                                            
|                                                  | 4.9 No Contractual or Corporate Restrictions                                          
|                                                  | 4.10 Investment Company Act Not Applicable                                            
|                                                  | 4.11 Public Utility Holding Company Act Not Applicable                                
|                                                  | 4.12 ERISA Not Applicable                                                             
|5. Affirmative Covenants                         
|                                                  | 5.1 Taxes, Insurance, Existence, Regulations, Property, etc                           
|                                                  | 5.2 Financial Statements and Information                                              
|                                                  | 5.3 Financial Tests                                                                   
|                                                  | 5.4 Inspection                                                                        
|                                                  | 5.5 Further Assurances                                                                
|                                                  | 5.6 Books and Records                                                                 
|                                                  | 5.7 Insurance                                                                         
|                                                  | 5.8 Notice of Certain Matters                                                         
|                                                  | 5.9 Use of Proceeds                                                                   
|                                                  | 5.10 Expenses of and Claims Against the Agent and the Lenders                         
|                                                  | 5.11 Legal Compliance; Indemnification                                                
|                                                  | 5.12 Borrowers Performance                                                           
|                                                  | 5.13 Professional Services                                                            
|                                                  | 5.14 Capital Adequacy                                                                 
|                                                  | 5.15 Property Pool                                                                    
|                                                  | 5.16 DC Holdings                                                                      
|6. Negative Covenants                            
|                                                  | 6.1 Mergers, Consolidations and Acquisitions of Assets                                
|                                                  | 6.2 Redemption                                                                        
|                                                  | 6.3 Nature of Business                                                                
|                                                  | 6.4 Transactions with Related Parties                                                 
|                                                  | 6.5 Limiting Agreements                                                               
|                                                  | 6.6 Parent Negative Covenants                                                         
|7. Events of Default and Remedies                
|                                                  | 7.1 Events of Default                                                                 
|                                                  | 7.2 Remedies Cumulative                                                               
|                                                  | 7.3 Guaranty Proceeds                                                                 
|8. The Agent                                     
|                                                  | 8.1 Appointment, Powers and Immunities                                                
|                                                  | 8.2 Reliance                                                                          
|                                                  | 8.3 Defaults                                                                          
|                                                  | 8.4 Rights as a Lender                                                                
|                                                  | 8.5 Indemnification                                                                   
|                                                  | 8.6 Non-Reliance on Agent and Other Lenders                                           
|                                                  | 8.7 Failure to Act                                                                    
|                                                  | 8.8 Resignation of Agent                                                              
|                                                  | 8.9 No Partnership                                                                    
|9. Renewal and Extension                         
|                                                  | 9.1 Procedure for Renewal and Extension                                               
|                                                  | 9.2 Conditions to Renewal and Extension                                               
|10. Miscellaneous                                
|                                                  | 10.1 No Waiver, Amendments                                                            
|                                                  | 10.2 Notices                                                                          
|                                                  | 10.3 Venue                                                                            
|                                                  | 10.4 Choice of Law                                                                    
|                                                  | 10.5 Survival; Parties Bound; Successors and Assigns                                  
|                                                  | 10.6 Counterparts                                                                     
|                                                  | 10.7 Usury Not Intended; Refund of Any Excess Payments                                
|                                                  | 10.8 Captions                                                                         
|                                                  | 10.9 Severability                                                                     
|                                                  | 10.10 Disclosures                                                                     
|                                                  | 10.11 No Novation                                                                     
|                                                  | 10.12 Limitation of Liability                                                         
|                                                  | 10.13 Entire Agreement                                                                
|EX-4.4 Rights Agreement dated as of 12/1/03      
|EX-10.12 Amended and Restated Credit Agreement   
|EX-12.1 Computation of Ratio of Earnings         
|EX-12.2 Computation of Ratio of Earnings         
|EX-21 Subsidiaries of Archstone-Smith            
|EX-23.1 Consent of KPMG LLP                      
|EX-31.1 Certification of CEO pursuant to Sec. 302
|EX-31.2 Certification of CFO pursuant to Sec. 302
|EX-32.1 Certification of CEO pursuant to Sec. 906
|EX-32.2 Certification of CFO pursuant to Sec. 906



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##### Table of Contents



TABLE OF CONTENTS

|                                  |  |                                                                                        |    |  |    | 
|--------------------------------- |  | -------------------------------------------------------------------------------------- | -- |  | -- | 
|1. Definitions                    |  |                                                                                        | 1  | 
|2. The Loans                      |  |                                                                                        | 17 | 
|                                  |  | 2.1 Advances                                                                           |    |  | 17 | 
|                                  |  | 2.2 Letters of Credit                                                                  |    |  | 19 | 
|                                  |  | 2.3 Payments                                                                           |    |  | 23 | 
|                                  |  | 2.4 Pro Rata Treatment                                                                 |    |  | 25 | 
|                                  |  | 2.5 Non-Receipt of Funds by the Agent                                                  |    |  | 26 | 
|                                  |  | 2.6 Sharing of Payments, Etc                                                           |    |  | 26 | 
|                                  |  | 2.7 Fees                                                                               |    |  | 27 | 
|                                  |  | 2.8 Money Market Borrowings                                                            |    |  | 28 | 
|                                  |  | 2.9 Reduction of Commitment                                                            |    |  | 32 | 
|                                  |  | 2.10 Additional Guarantees                                                             |    |  | 32 | 
|3. Conditions.                    |  |                                                                                        | 32 | 
|                                  |  | 3.1 All Loans                                                                          |    |  | 33 | 
|                                  |  | 3.2 First Loan                                                                         |    |  | 33 | 
|                                  |  | 3.3 Options Available                                                                  |    |  | 34 | 
|                                  |  | 3.4 Designation and Conversion                                                         |    |  | 34 | 
|                                  |  | 3.5 Special Provisions Applicable to Eurodollar
Rate Borrowings and Money Market Loans |    |  | 35 | 
|                                  |  | 3.6 Funding Offices; Adjustments Automatic                                             |    |  | 37 | 
|                                  |  | 3.7 Funding Sources, Payment Obligations                                               |    |  | 37 | 
|                                  |  | 3.8 Mitigation, Non-Discrimination                                                     |    |  | 38 | 
|4. Representations and Warranties |  |                                                                                        | 39 | 
|                                  |  | 4.1 Organization                                                                       |    |  | 39 | 
|                                  |  | 4.2 Financial Statements                                                               |    |  | 39 | 
|                                  |  | 4.3 Enforceable Obligations; Authorization                                             |    |  | 39 | 
|                                  |  | 4.4 Other Debt                                                                         |    |  | 39 | 
|                                  |  | 4.5 Litigation                                                                         |    |  | 39 | 
|                                  |  | 4.6 Taxes                                                                              |    |  | 40 | 
|                                  |  | 4.7 Regulation U                                                                       |    |  | 40 | 
|                                  |  | 4.8 Securities Act of 1933                                                             |    |  | 40 | 
|                                  |  | 4.9 No Contractual or Corporate Restrictions                                           |    |  | 40 | 
|                                  |  | 4.10 Investment Company Act Not Applicable                                             |    |  | 40 | 
|                                  |  | 4.11 Public Utility Holding Company Act Not Applicable                                 |    |  | 40 | 
|                                  |  | 4.12 ERISA Not Applicable                                                              |    |  | 40 | 
|5. Affirmative Covenants          |  |                                                                                        | 40 | 
|                                  |  | 5.1 Taxes, Insurance, Existence, Regulations, Property, etc                            |    |  | 41 | 
|                                  |  | 5.2 Financial Statements and Information                                               |    |  | 41 | 

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|                                  |  |                                                               |    |  |    | 
|--------------------------------- |  | ------------------------------------------------------------- | -- |  | -- | 
|                                  |  | 5.3 Financial Tests                                           |    |  | 42 | 
|                                  |  | 5.4 Inspection                                                |    |  | 42 | 
|                                  |  | 5.5 Further Assurances                                        |    |  | 42 | 
|                                  |  | 5.6 Books and Records                                         |    |  | 42 | 
|                                  |  | 5.7 Insurance                                                 |    |  | 42 | 
|                                  |  | 5.8 Notice of Certain Matters                                 |    |  | 42 | 
|                                  |  | 5.9 Use of Proceeds                                           |    |  | 42 | 
|                                  |  | 5.10 Expenses of and Claims Against the Agent and the Lenders |    |  | 43 | 
|                                  |  | 5.11 Legal Compliance; Indemnification                        |    |  | 43 | 
|                                  |  | 5.12 Borrowers Performance                                   |    |  | 44 | 
|                                  |  | 5.13 Professional Services                                    |    |  | 45 | 
|                                  |  | 5.14 Capital Adequacy                                         |    |  | 45 | 
|                                  |  | 5.15 Property Pool                                            |    |  | 45 | 
|                                  |  | 5.16 DC Holdings                                              |    |  | 47 | 
|6. Negative Covenants             |  |                                                               | 47 | 
|                                  |  | 6.1 Mergers, Consolidations and Acquisitions of Assets        |    |  | 47 | 
|                                  |  | 6.2 Redemption                                                |    |  | 47 | 
|                                  |  | 6.3 Nature of Business                                        |    |  | 47 | 
|                                  |  | 6.4 Transactions with Related Parties                         |    |  | 48 | 
|                                  |  | 6.5 Limiting Agreements                                       |    |  | 48 | 
|                                  |  | 6.6 Parent Negative Covenants                                 |    |  | 49 | 
|7. Events of Default and Remedies |  |                                                               | 49 | 
|                                  |  | 7.1 Events of Default                                         |    |  | 49 | 
|                                  |  | 7.2 Remedies Cumulative                                       |    |  | 51 | 
|                                  |  | 7.3 Guaranty Proceeds                                         |    |  | 51 | 
|8. The Agent.                     |  |                                                               | 52 | 
|                                  |  | 8.1 Appointment, Powers and Immunities                        |    |  | 52 | 
|                                  |  | 8.2 Reliance                                                  |    |  | 53 | 
|                                  |  | 8.3 Defaults                                                  |    |  | 54 | 
|                                  |  | 8.4 Rights as a Lender                                        |    |  | 54 | 
|                                  |  | 8.5 Indemnification                                           |    |  | 54 | 
|                                  |  | 8.6 Non-Reliance on Agent and Other Lenders                   |    |  | 55 | 
|                                  |  | 8.7 Failure to Act                                            |    |  | 55 | 
|                                  |  | 8.8 Resignation of Agent                                      |    |  | 55 | 
|                                  |  | 8.9 No Partnership                                            |    |  | 56 | 
|9. Renewal and Extension          |  |                                                               | 56 | 
|                                  |  | 9.1 Procedure for Renewal and Extension                       |    |  | 56 | 
|                                  |  | 9.2 Conditions to Renewal and Extension                       |    |  | 56 | 
|10. Miscellaneous.                |  |                                                               | 57 | 
|                                  |  | 10.1 No Waiver, Amendments                                    |    |  | 57 | 
|                                  |  | 10.2 Notices                                                  |    |  | 57 | 
|                                  |  | 10.3 Venue                                                    |    |  | 57 | 

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| |  |                                                        |  |  |    | 
| |  | ------------------------------------------------------ |  |  | -- | 
| |  | 10.4 Choice of Law                                     |  |  | 58 | 
| |  | 10.5 Survival; Parties Bound; Successors and Assigns   |  |  | 58 | 
| |  | 10.6 Counterparts                                      |  |  | 62 | 
| |  | 10.7 Usury Not Intended; Refund of Any Excess Payments |  |  | 62 | 
| |  | 10.8 Captions                                          |  |  | 62 | 
| |  | 10.9 Severability                                      |  |  | 62 | 
| |  | 10.10 Disclosures                                      |  |  | 62 | 
| |  | 10.11 No Novation                                      |  |  | 63 | 
| |  | 10.12 Limitation of Liability                          |  |  | 63 | 
| |  | 10.13 Entire Agreement                                 |  |  | 63 | 

SCHEDULE I: Guarantor

EXHIBITS:

A -  Officers Certificate
B -  Request for Loan
C -  Note
C-1- Swing Loan Note
C-2- Master Note
D -  Legal Opinion
E -  Money Market Quote Request
F -  Invitation for Money Market Quotes
G -  Money Market Quote
H -  Designation Agreement
I -  Form of Guaranty
J -  Assignment and Assumption Agreement
K -  Form of Additional Guaranty

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AMENDED AND RESTATED
CREDIT AGREEMENT

THIS AMENDED AND RESTATED CREDIT AGREEMENT (the Agreement) is made and
entered into as of October 30, 2003, by and among ARCHSTONE-SMITH OPERATING
TRUST, a Maryland real estate investment trust (the Borrower),
ARCHSTONE-SMITH TRUST, a Maryland real estate investment trust, and the parent
of the Borrower (the Parent), the financial institutions (including JPMC, the
Syndication Agents and the Documentation Agents, the Lenders) which are now
or may hereafter become signatories hereto, JPMORGAN CHASE BANK, a New York
banking corporation (JPMC), as administrative agent for Lenders (in such
capacity, Agent), BANK OF AMERICA, N.A. and WELLS FARGO BANK, N.A., and as
syndication agents for Lenders (in such capacity, Syndication Agents), and
BANK ONE, NA and COMMERZBANK AG, NEW YORK BRANCH, as documentation agents for
Lenders (in such capacity, Documentation Agents).

WHEREAS, the Borrower, the Agent and certain of the Lenders entered into a
Credit Agreement dated as of December 20, 2000 (as amended to the date hereof,
the Original Credit Agreement); and

WHEREAS, the Borrower has requested that the Agent and the Lenders amend
and restate the Original Credit Agreement and the Agent and the Lenders have
agreed to do so pursuant to the terms of this Agreement; and

WHEREAS, the Borrower desires to obtain Loans and obtain Letters of Credit
(as such terms are hereinafter defined) from the Lenders; and

WHEREAS, subject to and upon the terms and conditions set forth herein,
the Lenders are willing to make Loans and provide for the issuance of Letters
of Credit to the Borrower, as provided for herein;

NOW, THEREFORE, in consideration of the premises and the covenants and
agreements contained herein, the adequacy of which is hereby acknowledged, the
parties hereto hereby agree that the aforementioned recitals are true and
correct and hereby incorporated herein and that the parties hereto hereby agree
as follows:




1. Definitions.

Unless a particular word or phrase is otherwise defined or the context
otherwise requires, capitalized words and phrases used in Credit Documents have
the meanings provided below.

Absolute Rate Auction shall mean a solicitation of Money Market Quotes
setting forth Money Market Absolute Rates pursuant to Section 2.8.





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Acceptable Credit Rating shall mean a Credit Rating from two of Standard &
Poors Rating Services, Moodys Investors Service, Inc., or Fitch (one of which
must be an S&P Rating or a Moodys Rating) equal to a Credit Rating from Fitch,
or an S&P Rating of BBB- or better, or a Moodys Rating of Baa3 or better.

Accounts, Equipment and Inventory shall have the respective meanings
assigned to them in the Texas Business and Commerce Code in force on the date
the document using such term was executed.

Administrative Questionnaire means an Administrative Questionnaire in a
form supplied by the Agent.

Affiliate shall mean any Person controlling, controlled by or under common
control with any other Person. For purposes of this definition, control
(including controlled by and under common control with) means the
possession, directly or indirectly, of the power to direct or cause the
direction of the management and policies of such Person, whether through the
ownership of voting securities or otherwise.

Annual Audited Financial Statements shall mean the annual financial
statements of a Person, including all notes thereto, which statements shall
include a balance sheet as of the end of such fiscal year and an income
statement and a statement of cash flows, all setting forth in comparative form
the corresponding figures from the previous fiscal year, all prepared in
conformity with Generally Accepted Accounting Principles and accompanied by a
report and opinion of independent certified public accountants satisfactory to
the Agent, which shall state that such financial statements, in the opinion of
such accountants, present fairly the financial position of such Person as of
the date thereof and the results of its operations for the period covered
thereby in conformity with Generally Accepted Accounting Principles. Such
statements shall be accompanied by a certificate of such accountants that in
making the appropriate audit and/or investigation in connection with such
report and opinion, such accountants did not become aware of any Default or, if
in the opinion of such accountant any such Default exists, a description of the
nature and status thereof. The Annual Audited Financial Statements shall be
prepared on a consolidated basis in accordance with Generally Accepted
Accounting Principles.

Applicable Margin shall mean (a) if a Credit Rating is obtained from more
than one agency, and one of the two highest Credit Ratings is an S&P Rating or
a Moodys Rating, the following percentage based on the corresponding Credit
Rating which is the second highest, or (b) if the one of the two highest Credit
Ratings in clause (a) above is not an S&P Rating or a Moodys Rating, the
following percentage based on the corresponding S&P Rating or Moodys Rating
which is the highest, or (c) if only one Credit Rating is obtained, which must
be an S&P Rating or a Moodys Rating, the following percentage based on the
corresponding S&P Rating or Moodys Rating:

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APPLICABLE MARGIN

|                     |  |                 |       |           |  |  |     |  
|-------------------- |  | --------------- | ----- | --------- |  |  | --- | -
|APPLICABLE           |  | EURODOLLAR RATE |       | BASE RATE
|CREDIT RATING        |  | BORROWING       |       | BORROWING
|                     |  |                 |       |          
|A/A2 or better       |  |                 | 0.500 | %         |  |  | 0   |  
|A-/A3                |  |                 | 0.525 | %         |  |  | 0   |  
|BBB+/Baa1            |  |                 | 0.600 | %         |  |  | 0   |  
|BBB/Baa2             |  |                 | 0.700 | %         |  |  | 0   |  
|BBB-/Baa3            |  |                 | 0.900 | %         |  |  | 0   |  
|Worse than BBB-/Baa3 |  |                 | 1.250 | %         |  |  | .25 | %
|or no Credit Rating  |  |                 |       |           |  |  |     |  

Each Applicable Margin shall be in effect whenever and for so long as the
corresponding Credit Rating or no Credit Rating is in effect.

Assignment and Assumption means an assignment and assumption entered into
by a Lender and an assignee (with the consent of any party whose consent is
required by Section 10.5), and accepted by the Agent, in the form of Exhibit J
or any other form approved by the Agent.

Base Rate shall mean for any day a rate per annum equal to the Applicable
Margin on that day plus the greater on a daily basis of (a) the Prime Rate for
that day, or (b) the Federal Funds Effective Rate for that day plus one-half of
one percent (-1/2%).

Base Rate Borrowing shall mean that portion of the principal balance of
the Loans at any time bearing interest at the Base Rate.

Business Day shall mean a day other than (a) a day when the main office of
the Agent is not open for business, or (b) a day that is a federal banking
holiday in the United States of America.

Calculation Date shall mean the beginning of the first full calendar
quarter after the Stabilization Date.

Capital Lease Obligations of any Person means the obligations of such
Person to pay rent or other amounts under any lease of (or other arrangement
conveying the right to use) real or personal property, or a combination
thereof, which obligations are required to be classified and accounted for as
capital leases on a balance sheet of such Person under Generally Accepted
Accounting Principles, and the amount of such obligations shall be the
capitalized amount thereof determined in accordance with Generally Accepted
Accounting Principles.

Ceiling Rate shall mean, on any day, the maximum nonusurious rate of
interest permitted for that day by whichever of applicable federal or Texas
laws permits the higher interest rate, stated as a rate per annum. On each
day, if any, that Texas law establishes the

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Ceiling Rate, the Ceiling Rate shall be the weekly ceiling (as defined
in Chapter 303 of the Texas Finance Code, as amended (the Texas Finance
Code)) for that day. The Agent may from time to time, as to current and
future balances, implement any other ceiling under the Texas Finance Code by
notice to the Borrower, if and to the extent permitted by the Texas Finance
Code. Without notice to the Borrower or any other person or entity, the
Ceiling Rate shall automatically fluctuate upward and downward as and in the
amount by which such maximum nonusurious rate of interest permitted by
applicable law fluctuates.

Code shall mean the Internal Revenue Code of 1986, as amended, as now or
hereafter in effect, together with all regulations, rulings and interpretations
thereof or thereunder by the Internal Revenue Service.

Commitment shall mean the commitment of the Lenders to lend funds under
Section 2.1 of this Agreement, other than Swing Loans. The aggregate
Commitment on the date hereof is $600,000,000.00.

Committed Loan shall mean Loans other than Money Market Loans.

Construction Interest shall mean Borrowers interest expense for the
construction of projects, which is capitalized in accordance with Generally
Accepted Accounting Principles.

Coverage Ratio shall mean the ratio of (a) the Borrowers EBITDA
(calculated by adding the Parents Interest Expense) for the immediately
preceding four (4) calendar quarters, to (b) dividends or other distributions
of any kind or character paid or payable with respect to any Disqualified Stock
plus all of the Borrowers and the Parents Interest Expense, in each case for
the period used to calculate EBITDA.

Credit Documents shall mean this Agreement, the Notes, any Guaranty, all
instruments, certificates and agreements now or hereafter executed or delivered
to the Agent or the Lenders pursuant to any of the foregoing, and all
amendments, modifications, renewals, extensions, increases and rearrangements
of, and substitutions for, any of the foregoing.

Credit Rating shall mean the S&P Rating, the Moodys Rating, or the rating
assigned by Fitch to Borrowers senior unsecured indebtedness.

DC Holdings Entities shall mean Metropolitan Acquisition Finance LP, Smith
Property Holdings Cronins Landing LP, Smith Property Holdings Crystal towers
LP, Smith Property Holdings One LP, Smith Property Holdings Two LP, Smith
Property Holdings Three LP, Smith Property Holdings Four LP, Smith Property
Holdings Five LP, Smith Property Holdings Six LP, Smith Property Holdings Seven
LP, Smith Property Holdings Alban Towers LLC, First Herndon Associates LP,
Smith Property Holdings One (DC) LP, Smith Property Holdings Two (DC) LP, Smith
Property Holdings Three (DC) LP, Smith Property Holdings Kenmore LP, Smith
Property Holdings Five (DC) LP, Smith Property Holdings Six (DC) LP, Smith
Property Holdings Van Ness LP, Smith Property Holdings Consulate LLC and Smith
Property Holdings Columbia Road, Smith Property

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Holdings Aventura A LLC, Smith Property Holdings Aventura B LLC, Smith
Property Holdings Aventura C LLC, Smith Property Sunset Pointe West LLC, Smith
Property Holdings 4411 Connecticut Avenue LLC, and any Person formed solely for
the purpose of owning Real Property in the District of Columbia.

Debt to Total Asset Value Ratio shall mean the ratio (expressed as a
percentage) of (a) the sum of the Borrowers and the Parents Indebtedness to
(b) Total Asset Value.

Designated Lender shall mean a special purpose corporation that (a) shall
have become a party to this Agreement pursuant to Section 10.5(f), and (b) is
not otherwise a Lender.

Designated Lender Notes shall mean promissory notes of the Borrower,
substantially in the form of Exhibit C hereto, evidencing the obligation of the
Borrower to repay Money Market Loans made by Designated Lenders, and Designated
Lender Note means any one of such promissory notes issued under Section
10.5(f).

Designating Lender shall have the meaning set forth in Section 10.5(f).

Designation Agreement shall mean a designation agreement in substantially
the form of Exhibit H attached hereto, entered into by a Lender and a
Designated Lender and accepted by the Agent.

Disqualified Stock shall mean any of the Borrowers capital stock which by
its terms (or by the terms of any security into which it is convertible or for
which it is exchangeable or exercisable) (a) matures or is subject to mandatory
redemption, pursuant to a sinking fund obligation or otherwise, (b) is
convertible into or exchangeable or exercisable for Indebtedness or
Disqualified Stock, (c) is redeemable at the option of the holder of such
stock, or (d) otherwise requires any payments by Borrower, in each case on or
before the Maturity Date.

EBITDA means an amount derived from (a) net income (including all net cash
gains and losses on dispositions of Real Property in accordance with Generally
Accepted Accounting Principles), including (without duplication) the Equity
Percentage of EBITDA for the Borrowers Unconsolidated Affiliates, plus (b) to
the extent included in the determination of net income, depreciation,
amortization, Interest Expense, income taxes, deferred taxes and other non-cash
charges, minority interest, extraordinary losses, prepayment penalties and
make-whole costs paid in connection with prepayment of Indebtednesss, and
payments made on Borrowers preferred stock, minus (c) to the extent included
in the determination of net income, any extraordinary gains, in each case, as
determined on a consolidated basis in accordance with Generally Accepted
Accounting Principles.

Equity Percentage shall mean the aggregate ownership interest of Borrower
in each Unconsolidated Affiliate, which shall be calculated as Borrowers
economic ownership interest in such Person, reflecting Borrowers share of
income and expenses of such Person.

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Eurodollar Business Day shall mean a Business Day on which transactions in
United States dollar deposits between banks may be carried on in the London
interbank dollar market.

Eurodollar Interbank Rate shall mean, for each Interest Period, the rate
of interest per annum, rounded, if necessary, to the next highest whole
multiple of one-sixteenth percent (1/16%), quoted by Agent at or before 11:00
a.m., London time (or as soon thereafter as practicable), on the date two (2)
Eurodollar Business Days before the first day of such Interest Period, to be
the arithmetic average of the prevailing rates per annum at the time of
determination and in accordance with the then existing practice in the London
interbank dollar market, for the offering to Agent by one or more prime banks
selected by Agent in its sole discretion, in the London interbank dollar
market, of deposits in United States dollars for delivery on the first day of
such Interest Period and having a maturity equal to the length of such Interest
Period and in an amount equal (or as nearly equal as may be) to the Eurodollar
Rate Borrowing to which such Interest Period relates. Each determination by
Agent of the Eurodollar Interbank Rate shall be prima facie evidence thereof.

Eurodollar Rate shall mean for any day a rate per annum equal to the sum
of the Applicable Margin for that day plus the Eurodollar Interbank Rate in
effect on the first day of the Interest Period for the applicable Eurodollar
Rate Borrowing. Each Eurodollar Rate is subject to adjustments for reserves,
insurance assessments and other matters as provided for in Section 3.5 hereof.

Eurodollar Rate Borrowing shall mean that portion of the principal balance
of the Loans at any time bearing interest at a Eurodollar Rate.

Eurodollar Reserve Requirement shall mean, on any day, the cost incurred
by a Lender as a reserve requirement (including, without limitation, basic,
supplemental, marginal and emergency reserves) applicable to Eurocurrency
liabilities, as currently defined in Regulation D, all as specified by any
Governmental Authority, including but not limited to those imposed under
Regulation D, because of that Lender making a Eurodollar Rate Borrowing or a
Money Market LIBOR Loan available to the Borrower.

Event of Default shall mean any of the events specified as an event of
default in Section 7 of this Agreement, and Default shall mean any of such
events, whether or not any requirement for notice, grace or cure has been
satisfied.

Federal Funds Effective Rate shall to the extent necessary be determined
by the Agent separately for each day and shall for each such day be a rate per
annum equal to the weighted average of the rates on overnight Federal funds
transactions with members of the Federal Reserve System arranged by Federal
funds brokers, as published for each such day (or if any such day is not a
Business Day, for the next immediately preceding Business Day) by the Federal
Reserve Bank of New York, or if the weighted average of such rates is not so
published for any such day which is a Business Day, the average of the
quotations for any such day on such transactions received by the Agent from
three Federal funds brokers of recognized standing selected by the Agent.

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Fee shall mean, collectively, the fee described in Section 2.7.

Fitch shall mean Fitch, Inc.

Fixed Charge Coverage Ratio shall mean the ratio of (a) the Borrowers
EBITDA (calculated by adding the Parents Interest Expense) for the immediately
preceding four (4) calendar quarters, less Unit Capital Expenditures, to (b)
dividends of any kind or character or other proceeds paid or payable with
respect to any Disqualified Stock, plus all of the Borrowers and the Parents
Interest Expense, plus all of the principal payable and principal paid on the
Borrowers and the Parents Indebtedness (but not including prepayment
penalties and make-whole costs not included in the calculation of EBITDA) other
than (i) any final scheduled principal payment on any Indebtedness which pays
such Indebtedness in full, to the extent the amount of such scheduled principal
payment is greater than the scheduled principal payment immediately preceding
such final scheduled principal payment and (ii) scheduled principal payments on
the Borrowers and the Parents Indebtedness incurred prior to October 30, 2003
which has a rating from Standard & Poors Rating Services, Moodys Investor
Service, Inc. or Fitch which is the equivalent of BBB-/Baa3 or better at the
time of issuance, in each case for the period used to calculate EBITDA.

Funding Loss shall mean, with respect to (a) Borrowers payment or
prepayment of principal of a Eurodollar Rate Borrowing or a Money Market Loan
on a day other than the last day of the applicable Interest Period; (b)
Borrowers failure to borrow a Eurodollar Rate Borrowing or a Money Market Loan
on the date specified by Borrower; (c) Borrowers failure to make any
prepayment of the Loans (other than Base Rate Borrowings) on the date specified
by Borrower, or (d) any cessation of a Eurodollar Rate to apply to the Loans or
any part thereof pursuant to Section 3.5, in each case whether voluntary or
involuntary, any direct loss, expense, penalty, premium or liability incurred
by any Lender (including but not limited to any loss or expense incurred by
reason of the liquidation or reemployment of deposits or other funds acquired
by a Lender to fund or maintain a Loan).

Generally Accepted Accounting Principles shall mean, as to a particular
Person, such accounting practice as, in the opinion of the independent
accountants of recognized national standing regularly retained by such Person
and acceptable to the Agent, conforms at the time to generally accepted
accounting principles, consistently applied. Generally Accepted Accounting
Principles means those principles and practices (a) which are recognized as
such by the Financial Accounting Standards Board, (b) which are applied for all
periods after the date hereof in a manner consistent with the manner in which
such principles and practices were applied to the most recent audited financial
statements of the relevant Person furnished to the Lenders or where a change
therein has been concurred in by such Persons independent auditors, and (c)
which are consistently applied for all periods after the date hereof so as to
reflect properly the financial condition, and results of operations and changes
in financial position, of such Person. If there is a change in such accounting
practice as to the Borrower that could affect the Borrowers ability to comply
with the terms of this Agreement, the parties hereto agree to review and
discuss such

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changes in accounting practice and the terms of this Agreement for a
period of no more than thirty (30) days with a view to amending this Agreement
so that the financial measures of the Borrowers operating performance and
financial condition are substantially the same after such change as they were
immediately before such change.

Governmental Authority shall mean any foreign governmental authority, the
United States of America, any State of the United States and any political
subdivision of any of the foregoing, and any agency, department, commission,
board, bureau, court or other tribunal having jurisdiction over the Agent, any
Lender or the Borrower or their respective Property.

Guarantor shall mean each Subsidiary of Borrower that executes a Guaranty
as required by Section 5.15 hereof. Guarantor as of the date hereof is the
Persons listed on Schedule I attached hereto.

Guaranty (whether one or more) shall mean a Guaranty in the form of
Exhibit I attached hereto and made a part hereof.

Hedging Agreements shall mean any interest rate protection agreement,
foreign currency exchange agreement, commodity price protection agreement or
other interest or currency exchange rate or commodity price hedging agreement.

Historical Value shall mean the purchase price of Real Property (including
improvements) and ordinary related purchase transaction costs, plus the cost of
subsequent capital improvements made by the Borrower, less any provision for
losses, all determined in accordance with Generally Accepted Accounting
Principles. If the Real Property is purchased as a part of a group of
properties, the Historical Value shall be calculated based upon a reasonable
allocation of the aggregate purchase price by the Borrower, and consistent with
Generally Accepted Accounting Principles.

Indebtedness shall mean and include, without duplication (1) all
obligations for borrowed money, (2) all obligations evidenced by bonds,
debentures, notes or other similar agreements, (3) all obligations to pay the
deferred purchase price of Property or services, except accrued expenses and
trade accounts payable arising in the ordinary course of business (unless
included in (6) below), (4) all guaranties and endorsements and other
contingent obligations in respect of, or any obligations to purchase or
otherwise acquire, Indebtedness of others (provided that, where the guarantor
is not the sole owner of the Person whose Indebtedness is guaranteed, and where
the guaranty is of that portion of the Indebtedness remaining unpaid after the
collection of the collateral for the Indebtedness, the amount guaranteed that
is less than twenty-five percent (25%) of the Historical Value of said related
collateral will not be included in the calculation of Indebtedness), (5) all
Indebtedness secured by any Lien existing on any interest of the Person with
respect to which Indebtedness is being determined in Property owned subject to
such Lien whether or not the Indebtedness secured thereby shall have been
assumed, (6) accounts payable, dividends of any kind or character or other
proceeds payable with respect to any stock and accrued expenses which in the
aggregate are in excess of five percent (5%) of the undepreciated value of the
assets of the Borrower, (7) payments received in consideration

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for sale of Borrowers stock when the amount of the stock so sold is
determined, and the date of delivery is, more than one (1) month after receipt
of such payment and only to the extent that the obligation to deliver stock is
not payable solely in stock of the Borrower, (8) all obligations under Hedging
Agreements (calculated on a mark-to-market basis as of the reporting date)
other than Hedging Agreements related to interest rates on identified
outstanding borrowed money Indebtedness, and (9) all Capital Lease Obligations
of such Person. Indebtedness shall be calculated on a consolidated basis in
accordance with Generally Accepted Accounting Principles, including (without
duplication) the Equity Percentage of Indebtedness for the Borrowers
Unconsolidated Affiliates.

Interest Expense shall mean all of a Persons paid, accrued or capitalized
interest expense on such Persons Indebtedness (whether direct, indirect or
contingent, and including, without limitation, interest on all convertible
debt), but excluding Construction Interest.

Interest Options shall mean the Base Rate and the Eurodollar Rate, and
Interest Option means either of them.

Interest Payment Dates shall mean (a) the first (1st) day of each calendar
month and the Maturity Date, for Base Rate Borrowings and Eurodollar Rate
Borrowings; and (b) for Money Market Loans, the last day of each Interest
Period and the maturity date of the Money Market Loans

Interest Period shall mean:



| |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (1) For each Eurodollar Rate Borrowing, a period commencing on the
date such Eurodollar Rate Borrowing was made and ending on the
numerically corresponding day which is, subject to availability, (a) one
(1), two (2), three (3) or six (6) months thereafter, or (b) seven (7),
fourteen (14) or twenty-one (21) days thereafter for no more than four
(4) time periods (provided that the first Eurodollar Rate Borrowing under
this Agreement with an Interest Period of seven (7) days shall not count
against the four time maximum) each calendar year in connection with
payments of the Loans because of debt and/or equity sales by the
Borrower, changes in the Lender Commitments, sales of major assets by the
Borrower, or other similar reasons specifically approved by the Agent;
provided that, (v) any Interest Period which would otherwise end on a day
which is not a Eurodollar Business Day shall be extended to the next
succeeding Eurodollar Business Day, unless such Eurodollar Business Day
falls in another calendar month, in which case such Interest Period shall
end on the next preceding Eurodollar Business Day; (w) any Interest
Period which begins on the last Eurodollar Business Day of a calendar
month (or on a day for which there is no numerically corresponding day in
the calendar month at the end of such Interest Period) shall end on the
last Eurodollar Business Day of the appropriate calendar month; (x) no
Interest Period shall ever extend beyond the Maturity Date; and (y)
Interest Periods shall be selected by Borrower in such a manner that the
Interest Period with respect to any portion of the Loans which shall
become due shall not extend beyond such due date .

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| |                                                                                                                                                                                                                                                                                                                                                                                                     
| | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (2) For each Money Market LIBOR Loan, the period commencing on the
date such Money Market LIBOR Loan was made and ending one (1), two (2),
three (3) or six (6) months thereafter, as the Borrower may elect in the
applicable Notice of Money Market Borrowing in accordance with Section
2.8; provided that such Interest Period shall be limited as provided in
clauses (1)(v) through (y) above.



| |                                                                                                                                                                                                                                                                                                                                                                      
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (3) With respect to each Money Market Absolute Rate Loan, the period
commencing on the date such Money Market Absolute Rate was made and
ending such number of days thereafter (but not less than 14 days) as the
Borrower may elect in accordance with Section 2.8; provided that such
Interest Period shall be limited as provided in clauses (1)(x) and (y)
above.

Issuing Bank (whether one or more) means JPMorgan Chase Bank and up to
five (5) other Lenders, in their capacity as the issuer of Letters of Credit
hereunder, and their successors in such capacity as provided in Section 2.2(i).
The Issuing Bank may, in its discretion, arrange for one or more Letters of
Credit to be issued by Affiliates of the Issuing Bank, in which case the term
Issuing Bank shall include any such Affiliate with respect to Letters of
Credit issued by such Affiliate.

LC Disbursement means a payment made by the Issuing Bank pursuant to a
Letter of Credit.

LC Exposure means, at any time, the sum of (a) the aggregate undrawn
amount of all outstanding Letters of Credit at such time plus (b) the aggregate
amount of all LC Disbursements that have not yet been reimbursed by or on
behalf of the Borrower at such time. The LC Exposure of any Lender at any time
shall be its Percentage of the total LC Exposure at such time.

Legal Requirement shall mean any law, statute, ordinance, decree,
requirement, order, judgment, rule, regulation (or interpretation of any of the
foregoing) of, and the terms of any license or permit issued by, any
Governmental Authority.

Lender Commitment means, for any Lender, the amount set forth opposite
such Lenders name on its signature page of this Agreement, or as may hereafter
become a signatory hereto, as adjusted to reflect assignments or amendments
made in accordance with this Agreement.

Letter of Credit means any letter of credit issued pursuant to this
Agreement.

LIBOR Auction shall mean a solicitation of Money Market Quotes setting
forth Money Market Margins based on the Eurodollar Interbank Rate pursuant to
Section 2.8.

Lien shall mean any mortgage, pledge, charge, encumbrance, security
interest, collateral assignment, negative pledge or other lien or restriction
of any kind, whether based on common law, constitutional provision, statute or
contract, and shall include

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reservations, exceptions, encroachments, easements, rights of way,
covenants, conditions, restrictions, leases and other title exceptions.

Limiting Agreements shall mean any agreement, instrument or transaction,
including, without limitation, a Persons Organizational Documents, which has
or may have the effect of prohibiting or limiting any Persons ability to
pledge assets in the Pool to secure Indebtedness.

Loans shall mean the Loans described in Sections 2.1, 2.2 and 2.8 hereof.
Loan shall mean any such Loan.

Majority Lenders shall mean the Lenders with an aggregate amount in excess
of fifty percent (50%) of the amount of the Commitment then outstanding, and
after the Commitment has expired or terminated, shall mean Lenders with an
aggregate amount in excess of fifty percent (50%) of the unpaid principal
balance of the Revolving Credit Exposures.

Material Adverse Change shall mean a change which could reasonably be
expected to have a Material Adverse Effect.

Material Adverse Effect means a material adverse effect on (a) the
financial condition, or results of operations of Borrower and its Subsidiaries
taken as a whole, (b) the ability of Borrower to perform its material
obligations under the Credit Documents to which it is a party taken as a whole,
(c) the validity or enforceability of such Credit Documents taken as a whole,
or (d) the material rights and remedies of Lenders and Agent under the Credit
Documents taken as a whole.

Maturity Date shall mean three (3) years after the date hereof, unless
extended pursuant to Section 9.

Money Market Absolute Rate has the meaning set forth in Section 2.8.

Money Market Absolute Rate Loan shall mean a loan to be made by a Lender
pursuant to an Absolute Rate Auction.

Money Market LIBOR Loan shall mean a loan to be made by a Lender pursuant
to a LIBOR Auction.

Money Market Loan shall mean a Money Market LIBOR Loan or a Money Market
Absolute Rate Loan, as the context may require or allow.

Money Market Margin has the meaning set forth in Section 2.8.

Money Market Quote shall mean an offer by a Lender to make a Money Market
Loan in accordance with Section 2.8.

Moodys Rating shall mean the senior unsecured debt rating from time to
time received by the Borrower from Moodys Investors Service, Inc.

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Net Operating Income shall mean, for any income producing operating
properties, the difference between (a) any cash rentals, proceeds and other
income received from such Property (but excluding security or other deposits,
or other income of an extraordinary and non-recurring nature) during the
determination period, less (b) all cash costs and expenses (excluding interest
expense and any expenditures that are capitalized in accordance with Generally
Accepted Accounting Principles) incurred as a result of, or in connection with,
or properly allocated to, the operation or leasing of such Property during the
determination period. Net Operating Income shall be calculated on a
consolidated basis in accordance with Generally Accepted Accounting Principles,
and including (without duplication) the Equity Percentage of Net Operating
Income for the Borrowers Unconsolidated Affiliates.

Non-recourse Debt shall mean any Indebtedness the payment of which the
Borrower or any of its Subsidiaries is not obligated to make other than to the
extent of any security therefor.

Notes shall mean the promissory notes of the Borrower described in Section
2.1 hereof, including the Swing Loan Note, any and all renewals, extensions,
modifications, rearrangements and replacements thereof and any and all
substitutions therefor, and Note shall mean any one of them.

Obligations shall mean, as at any date of determination thereof, the sum
of (a) the aggregate Revolving Credit Exposures plus (b) all other liabilities,
obligations and Indebtedness of any Parties under any Credit Document.

Occupancy Level shall mean the occupancy level of a Property that is
leased to bona fide tenants paying rent under written leases, based on the
average of the actual occupancy level for the immediately preceding three (3)
months.

Officers Certificate shall mean a certificate in the form attached hereto
as Exhibit A.

Organizational Documents shall mean, with respect to a corporation, the
certificate of incorporation, articles of incorporation and bylaws of such
corporation; with respect to a partnership, the partnership agreement
establishing such partnership; with respect to a joint venture, the joint
venture agreement establishing such joint venture, and with respect to a trust,
the instrument establishing such trust; in each case including any and all
modifications thereof as of the date of the Credit Document referring to such
Organizational Document and any and all future modifications thereof which are
consented to by the Lenders.

Parties shall mean all Persons other than the Agent, the Syndication
Agents, the Documentation Agents or any Lender executing any Credit Document.

Past Due Rate shall mean, on any day, a rate per annum equal to the Base
Rate plus an additional three percent (3%) per annum, but in any event not to
exceed the Ceiling Rate.

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Percentage shall mean the amount, expressed as a percentage, of each
Lender Commitment as compared to the Commitment, set forth opposite the
Lenders name on its signature page of this Agreement, or as may hereafter
become signatory hereto, as adjusted or amended in accordance with this
Agreement. If the Commitment has terminated or expired, the Percentage shall
be determined based on the Revolving Credit Exposure most recently in effect,
giving effect to any assignments.

Permitted Encumbrances shall mean (a) encumbrances consisting of zoning
restrictions, easements, or other restrictions on the use of Real Property,
provided that such items do not materially impair the use of such property for
the purposes intended and none of which is violated in any material respect by
existing or proposed structures or land use; (b) the following: (i) Liens for
taxes not yet due and payable, or being diligently contested in good faith, or
where no Material Adverse Effect could reasonably be expected to result from
such nonpayment or the imposition of such Lien; or (ii) materialmens,
mechanics, warehousemens and other like Liens arising in the ordinary course
of business, securing payment of Indebtedness whose payment is not yet due, or
that are being contested in good faith by appropriate proceedings diligently
conducted, and for or against which the Borrower has established adequate
reserves in accordance with Generally Accepted Accounting Principles; (c) Liens
for taxes, assessments and governmental charges or assessments that are being
contested in good faith by appropriate proceedings diligently conducted, and
for or against which the Borrower has established adequate reserves in
accordance with Generally Accepted Accounting Principles; (d) Liens on Real
Property which are insured around or against by title insurance; (e) Liens
securing assessments or charges payable to a property owner association or
similar entity which assessments are not yet due and payable or are being
diligently contested in good faith; and (f) Liens securing this Agreement and
Indebtedness hereunder.

Person shall mean any individual, corporation, trust, unincorporated
organization, Governmental Authority or any other form of entity.

Pool shall have the meaning given to it in Section 5.15(a).

Pool Value shall mean the Value of the Pool.

Prime Rate shall mean, as of a particular date, the prime rate of interest
per annum publicly announced from time to time by JPMC as its prime rate in
effect at its principal office in New York, New York; each change in the Prime
Rate shall be effective on the date such change is determined; which Prime Rate
may not necessarily represent the Agents lowest or best rate actually charged
to a customer.

Proper Form shall mean in form and substance reasonably satisfactory to
the Agent and the Majority Lenders.

Property shall mean any interest in any kind of property or asset, whether
real, personal or mixed, tangible or intangible.

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QRS Entities shall mean Smith One, Inc., Smith Two, Inc., Smith Three,
Inc., Smith Four, Inc., Smith Five, Inc., Smith Six, Inc. and Smith Seven, Inc.

Quarterly Unaudited Financial Statements shall mean the quarterly
financial statements of a Person, including all notes thereto, which statements
shall include a balance sheet as of the end of such quarter and an income
statement for such fiscal quarter, and for the fiscal year to date, a statement
of cash flows for such quarter and for the fiscal year to date, subject to
normal year-end adjustments, and a detailed listing of the Borrowers Property
and the Historical Value thereof, all setting forth in comparative form the
corresponding figures for the corresponding fiscal period of the preceding year
(or, in the case of the balance sheet, the end of the preceding fiscal year),
prepared in accordance with Generally Accepted Accounting Principles except
that the Quarterly Unaudited Financial Statements may contain condensed
footnotes as permitted by regulations of the United States Securities and
Exchange Commission, and certified as true and correct by a managing director,
senior vice president, controller, co-controller or vice president of Borrower.
The Quarterly Unaudited Financial Statements shall be prepared on a
consolidated basis in accordance with Generally Accepted Accounting Principles.

Rate Designation Date shall mean 1:00 p.m., New York, New York time, on
the date three (3) Eurodollar Business Days preceding the first day of any
proposed Interest Period.

Real Property means, collectively, all interest in any land and
improvements located thereon, together with all equipment, furniture,
materials, supplies and personal property now or hereafter located at or used
in connection with the land and all appurtenances, additions, improvements,
renewals, substitutions and replacements thereof now or hereafter acquired by
any Person.

Regulation D shall mean Regulation D of the Board of Governors of the
Federal Reserve System from time to time in effect and shall include any
successor or other regulation relating to reserve requirements applicable to
member lenders of the Federal Reserve System.

Request for Loan shall mean a written request for a Committed Loan
substantially in the form of Exhibit B.

Revolving Credit Exposure means, with respect to any Lender at any time,
the sum of the outstanding principal amount of such Lenders Loans, the Swing
Loans, and its LC Exposure at such time.

S&P Rating shall mean the senior unsecured debt rating from time to time
received by the Borrower from Standard & Poors Rating Services.

Secured Debt means the Indebtedness of the Borrower or the Parent secured
by a Lien, and any Indebtedness of any of the Borrowers or the Parents
Subsidiaries and Unconsolidated Affiliates owed to a Person not an Affiliate of
the Borrower or the Parent or such Subsidiary.

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Secured Debt to Total Asset Value Ratio means the ratio (expressed as a
percentage) of Secured Debt to Total Asset Value.

Stabilization Date shall mean, with respect to a property, the earlier of
(a) eighteen (18) months from the date of acquisition of an income producing
property by the Borrower or eighteen (18) months after substantial completion
of construction or development of a new construction or development property,
and (b) the date on which the Occupancy Level is at least ninety-three percent
(93%).

Stated Rate shall, on any day, mean whichever of the Base Rate, the
Eurodollar Rate, or a rate applicable to Money Market Loans has been designated
and provided pursuant to this Agreement; provided that, if on any day such rate
shall exceed the Ceiling Rate for that day, the Stated Rate shall be fixed at
the Ceiling Rate on that day and on each day thereafter until the total amount
of interest accrued at the Stated Rate on the unpaid principal balance of the
Notes equals the total amount of interest which would have accrued if there had
been no Ceiling Rate. If the Notes mature (or are prepaid) before such
equality is achieved, then, in addition to the unpaid principal and accrued
interest then owing pursuant to the other provisions of the Credit Documents,
Borrower promises to pay on demand to the order of the holders of the Notes
interest in an amount equal to the excess (if any) of (a) the lesser of (i) the
total interest which would have accrued on the Notes if the Stated Rate had
been defined as equal to the Ceiling Rate from time to time in effect and (ii)
the total interest which would have accrued on the Notes if the Stated Rate
were not so prohibited from exceeding the Ceiling Rate, over (b) the total
interest actually accrued on the Notes to such maturity (or prepayment) date.

Subsidiary shall mean, as to a particular parent entity, any entity of
which more than fifty percent (50%) of the indicia of voting equity or
ownership rights (whether outstanding capital stock or otherwise) is at the
time directly or indirectly owned by, such parent entity, or by one or more of
its other Subsidiaries.

Super-Majority Lenders shall mean the Lenders with an aggregate amount of
sixty-six and sixty-seven hundredths percent (66.67%) or more of the amount of
the Commitment then outstanding, and after the Commitment has expired or
terminated, shall mean Lenders with an aggregate amount of sixty-six and
sixty-seven hundredths percent (66.67%) or more of the unpaid balance of the
Revolving Credit Exposures.

Swing Loan shall mean a Loan made pursuant to Section 2.1(c) hereof.

Swing Loan Note shall mean that certain promissory note dated of even date
herewith in the original principal amount of $100,000,000.00 executed by the
Borrower payable to the order of JPMC.

Tangible Net Worth shall mean total assets (without deduction for
accumulated depreciation) less (1) all intangibles and (2) all liabilities
(including contingent and indirect liabilities), all determined in accordance
with Generally Accepted Accounting Principles. The term intangibles shall
include, without limitation, (i) deferred charges, and (ii) the

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aggregate of all amounts appearing on the assets side of any such balance
sheet for franchises, licenses, permits, patents, patent applications,
copyrights, trademarks, trade names, goodwill, treasury stock, experimental or
organizational expenses and other like intangibles. The term liabilities
shall include, without limitation, (i) Indebtedness secured by Liens on
Property of the Person with respect to which Tangible Net Worth is being
computed whether or not such Person is liable for the payment thereof, (ii)
deferred liabilities, and (iii) obligations under leases which have been
capitalized. Tangible Net Worth shall be calculated on a consolidated basis in
accordance with Generally Accepted Accounting Principles.

Taxes shall mean any tax, levy, impost, duty, charge or fee.

Total Asset Value shall mean the sum of (without duplication) (a) the
aggregate Value of all of the Real Property owned by the Borrower and its
Subsidiaries on a consolidated basis plus (b) the amount of the Borrowers cash
and cash equivalents, excluding tenant security and other restricted deposits,
plus (c) the total book value of all of the Borrowers other assets not
described in (a) or (b) above, excluding all intangibles and all equity
investments in Unconsolidated Affiliates, plus (d) the Value of the Real
Property, and cash and other assets of the type permitted, and as valued, in
clauses (b) and (c) of this definition, owned by each of the Borrowers
Unconsolidated Affiliates, multiplied by the Equity Percentage for that
Unconsolidated Affiliate, including gains on sales of assets to Unconsolidated
Affiliates which must be deferred in accordance with Generally Accepted
Accounting Principles. Total Asset Value shall be calculated on a consolidated
basis in accordance with Generally Accepted Accounting Principles.

Unconsolidated Affiliate shall mean, in respect of any Person, any other
Person that is an Affiliate of such Person and in whom such Person holds a
voting equity or other ownership interest and whose financial results would not
be consolidated under Generally Accepted Accounting Principles with the
financial results of such other Person on the consolidated financial statements
of such first mentioned Person.

Unit Capital Expenditure shall mean, on an annual basis, an amount equal
to the sum of (a) the result of (i) the number of apartment units contained in
each completed, operating Real Property owned by Borrower and any Subsidiary as
of the last day of each of the immediately preceding four (4) calendar
quarters, divided by four (4), and multiplied by (ii) $200.00; plus (b) for
Unconsolidated Affiliates, the result of (i) the amount in clause (a) above for
Unconsolidated Affiliates, multiplied by (ii) the Equity Percentage for each
Unconsolidated Affiliate.

Value means the sum of the following:

(a) for Real Property that has reached the Calculation Date and that the
Person has owned for the full determination period, the result of dividing (i)
the aggregate Net Operating Income of the subject property ((1) beginning with
the Calculation Date until the end of the third full calendar quarter after the
Stabilization Date, based on the annualized Net Operating Income from the
Calculation Date until the time of measurement, and (2)

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beginning with the fourth full calendar quarter after the Stabilization
Date, based on the immediately preceding four (4) calendar quarter period), by
eight percent (8%); plus

(b)  for Real Property that is completed but has not reached the
Calculation Date or that has not been owned by Borrower for the full
determination period, the Historical Value of the subject property; plus

(c)  for Real Property that is under construction or development, or that
is undeveloped land, the Historical Value of the subject property.




2. The Loans.




2.1 Advances. (a) Subject to the terms and conditions of this Agreement,
each Lender severally agrees to make Committed Loans (other than Swing Loans)
prior to the Maturity Date to the Borrower not to exceed an amount (in the
aggregate, the Commitment) at any one time outstanding equal to the
difference between the Lenders Lender Commitment and the Lenders Revolving
Credit Exposure. Each such request for a Committed Loan by Borrower shall be
deemed a request for a Committed Loan from each Lender equal to such Lenders
Percentage of the aggregate amount so requested, and such aggregate amount
shall be in an amount at least equal to $1,000,000.00 and equal to a multiple
of $100,000.00, or the difference between the Commitment and the aggregate
Revolving Credit Exposures, whichever is less. Each repayment of the Committed
Loans shall be deemed a repayment of each Lenders Committed Loan equal to such
Lenders Percentage of the amount so repaid. The obligations of the Lenders
hereunder are several and not joint, and the preceding two sentences will give
rise to certain inappropriate results if special provisions are not made to
accommodate the failure of a Lender to fund a Committed Loan as and when
required by this Agreement; therefore, notwithstanding anything herein to the
contrary, (A) no Lender shall be required to make Committed Loans at any one
time outstanding in excess of such Lenders Percentage of the Commitment, and
(B) if a Lender fails to make a Committed Loan as and when required hereunder
and Borrower subsequently makes a repayment on the Committed Loans, such
repayment shall be split among the non-defaulting Lenders ratably in accordance
with their respective Percentages until each Lender has its Percentage of all
of the outstanding Committed Loans, and the balance of such repayment shall be
divided among all of the Lenders in accordance with their respective
Percentages. Notwithstanding the foregoing, borrowings and payments of Swing
Loans shall be for JPMCs own account. The Loans (other than Swing Loans)
shall be evidenced by the Notes substantially in the form of Exhibit C attached
hereto. The Borrower, the Agent and the Lenders agree that Chapter 346 of the
Texas Finance Code shall not apply to this Agreement, the Notes or any Loan.

(b) The Borrower shall give the Agent notice of each borrowing of a
Committed Loan to be made hereunder as provided in Section 3.1, and the Agent
shall deliver same to each Lender promptly thereafter. Not later than 12:00
noon, New York, New York time, on the date specified for each such borrowing of
a Committed Loan hereunder other than Swing Loans, each Lender shall make
available the amount of the Loan, if any, to be made by it on such date to the
Agent at the Agents principal office in

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New York, New York, in immediately available funds, for the account of the
Borrower. Such amounts received by the Agent will be held in Agents general
ledger account. The amounts so received by the Agent shall, subject to the
terms and conditions of this Agreement, be made available to the Borrower by
wiring or otherwise transferring, in immediately available funds not later than
1:00 p.m., New York, New York time, such amount to an account designated by the
Borrower and maintained with JPMC or any other account or accounts which the
Borrower may from time to time designate to the Agent by a written notice as
the account or accounts to which borrowings hereunder are to be wired or
otherwise transferred. JPMC shall make available the amount of each Swing Loan
by depositing the same in immediately available funds, in the foregoing account
by 3:00 p.m., New York, New York time, on the date of the borrowing.

(c) Subject to the terms and conditions hereof, if necessary to meet the
Borrowers funding deadlines, JPMC agrees to make Swing Loans to the Borrower
at any time on or prior to the Maturity Date, not to exceed an amount at any
one time outstanding equal to the lesser of (i) $100,000,000.00, or (ii) the
difference between the Commitment and the aggregate Revolving Credit Exposures.
Swing Loans shall constitute Loans for all purposes hereunder.
Notwithstanding the foregoing, the aggregate amount of all Loans (including,
without limitation, all Swing Loans) shall not at any time exceed the
difference between the Commitment and the LC Exposure. Each request for a
Swing Loan shall be in an amount at least equal to $1,000,000.00 and equal to a
multiple of $100,000.00. If necessary to meet the Borrowers funding
deadlines, the Agent may treat any Request for Loan as a request for a Swing
Loan from JPMC and JPMC may fund it as a Swing Loan. Within two (2) Business
Days after each Swing Loan is funded, JPMC shall request that each Lender, and
each Lender shall, on the first Business Day after such request is made,
purchase a portion of any one or more Swing Loans in an amount equal to that
Lenders Percentage of such Swing Loans by funding under such Lenders Note,
such purchase to be made in accordance with the terms of Section 2.1(b) just as
if the Lender were funding directly to the Borrower under its Note (such that
all Lenders other than JPMC shall fund only under their respective Note and not
under the Swing Loan Note). Unless the Agent knew or should have known when
JPMC funded a Swing Loan that the Borrower had not satisfied the conditions in
this Agreement to obtain a Loan, each Lenders obligation to purchase an
interest in the Swing Loans shall be absolute and unconditional and shall not
be affected by any circumstance, including, without limitation, (i) any
set-off, counterclaim, recoupment, defense or other right which such Lender or
any other Person may have against JPMC or any other Person for any reason
whatsoever; (ii) the occurrence or continuance of a Default or Event of Default
or the termination of any Lender Commitment; (iii) any adverse change in the
condition (financial or otherwise) of the Borrower or any of its Subsidiaries;
(iv) any breach of this Agreement or any other Credit Documents by the
Borrower, any of its Subsidiaries, the Agent or any other Lender; or (v) any
other circumstance, happening or event whatsoever, whether or not similar to
any of the foregoing. Any portion of a Swing Loan not so purchased and
converted may be treated by JPMC as a Committed Loan which was not funded by
the non-purchasing Lenders as contemplated in Section 2.1(a), and as a funding
by JPMC under the Commitment in excess of JPMCs Percentage. Each Swing Loan,
once so sold, shall cease to be a Swing Loan for the purposes of this
Agreement, but shall be a Committed Loan

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made under the Commitment and each Lenders Lender Commitment. The Swing
Loans shall be evidenced by the Swing Loan Note substantially in the form of
Exhibit C-1 attached hereto.

(d)  So long as the Borrower is not then in Default and so long as the
Borrower has not reduced the Commitment pursuant to Section 2.9, the Borrower
may on two (2) occasions prior to October 30, 2006, request that the aggregate
Commitment be increased, so long as (i) the aggregate Commitment does not
exceed Nine Hundred Million Dollars ($900,000,000.00) (the Maximum
Commitment), and (ii) each increase is a minimum of $50,000,000. If the
Borrower requests that the aggregate Commitment be increased, the Agent shall
use its best efforts to obtain increased or additional commitments up to the
Maximum Commitment, and to do so the Agent may obtain additional lenders of its
choice (and approved by Borrower, such approval not to be unreasonably withheld
or delayed), and without the necessity of approval from any of the Lenders.
The Borrower and each Guarantor shall execute an amendment to this Agreement,
additional Notes and other documents as the Agent may reasonably require to
evidence the increase of the Commitment, and the admission of additional
Persons as Lenders, if necessary.




2.2 Letters of Credit.

(a) Subject to the terms and conditions set forth herein, the Borrower may
request the issuance of Letters of Credit for its own account, in a form
reasonably acceptable to the Agent and the Issuing Bank, at any time and from
time to time before the Maturity Date. In the event of any inconsistency
between the terms and conditions of this Agreement and the terms and conditions
of any form of letter of credit application or other agreement submitted by the
Borrower to, or entered into by the Borrower with, the Issuing Bank relating to
any Letter of Credit, the terms and conditions of this Agreement shall control.

(b) To request the issuance of a Letter of Credit (or the amendment,
renewal or extension of an outstanding Letter of Credit), the Borrower shall
hand deliver or facsimile (or transmit by electronic communication, if
arrangements for doing so have been approved by the Issuing Bank) to the
Issuing Bank and the Agent (reasonably in advance of the requested date of
issuance, amendment, renewal or extension) a notice requesting the issuance of
a Letter of Credit, or identifying the Letter of Credit to be amended, renewed
or extended, and specifying the date of issuance, amendment, renewal or
extension (which shall be a Business Day), the date on which such Letter of
Credit is to expire (which shall comply with paragraph (c) of this Section),
the amount of such Letter of Credit, the name and address of the beneficiary
thereof and such other information as shall be necessary to prepare, amend,
renew or extend such Letter of Credit. If requested by the Issuing Bank, the
Borrower also shall submit a letter of credit application on the Issuing Banks
standard form in connection with any request for a Letter of Credit. A Letter
of Credit shall be issued, amended, renewed or extended only if (and upon
issuance, amendment, renewal or extension of each Letter of Credit the Borrower
shall be deemed to represent and warrant that), after giving effect to such
issuance, amendment, renewal or extension (i) the LC Exposure shall not exceed
$150,000,000.00 and (ii) the total Revolving Credit Exposures

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shall not exceed the total Commitment. Copies of all Letters of Credit
and amendments, extensions and cancellations related thereto, must be delivered
to the Agent and the other Lenders by the Issuing Bank.

(c) Each Letter of Credit shall expire not later than the earlier of (i)
three (3) years after date of issuance of the Letter of Credit (the Maximum
Outside Date), and (ii) the close of business on the date that is ten (10)
days prior to the Maturity Date (including the extension period provided in
Section 9); provided, however, that Letters of Credit with an aggregate LC
Exposure not exceeding $50,000,000.00 at any time may expire up to the earlier
of October 30, 2008 and the Maximum Outside Date.

(d) By the issuance of a Letter of Credit (or an amendment to a Letter of
Credit increasing the amount thereof) and without any further action on the
part of the Issuing Bank or the Lenders, the Issuing Bank hereby grants to each
Lender, and each Lender hereby acquires from the Issuing Bank, a participation
in such Letter of Credit equal to such Lenders Percentage of the aggregate
amount available to be drawn under such Letter of Credit. In consideration and
in furtherance of the foregoing, each Lender hereby absolutely and
unconditionally agrees to pay to the Agent, for the account of the Issuing
Bank, such Lenders Percentage of each LC Disbursement made by the Issuing Bank
and not reimbursed by the Borrower on the date due as provided in paragraph (e)
of this Section, or of any reimbursement payment required to be refunded to the
Borrower for any reason. Each Lender acknowledges and agrees that its
obligation to acquire participations pursuant to this paragraph in respect of
Letters of Credit is absolute and unconditional and shall not be affected by
any circumstance whatsoever, including any amendment, renewal or extension of
any Letter of Credit or the occurrence and continuance of a Default or
reduction of the Commitment, and that each such payment shall be made without
any offset, abatement, withholding or reduction whatsoever.

(e) If the Issuing Bank shall make any LC Disbursement in respect of a
Letter of Credit, the Borrower shall reimburse such LC Disbursement by paying
to the Agent an amount equal to such LC Disbursement not later than 1:00 p.m.,
New York, New York time, on the date that such LC Disbursement is made if the
Borrower shall have received notice of such LC Disbursement prior to 11:00
a.m., New York, New York time, on such date, or, if such notice has not been
received by the Borrower prior to such time on such date, then not later than
1:00 p.m., New York, New York time, on (i) the Business Day that the Borrower
receives such notice, if such notice is received prior to 11:00 a.m., New York,
New York time, on the day of receipt, or (ii) the Business Day immediately
following the day that the Borrower receives such notice, if such notice is not
received prior to such time on the day of receipt; provided that the Borrower
may, subject to the conditions to borrowing set forth herein, request in
accordance with Section 2.1 that such payment be financed with a Base Rate
Borrowing in an equivalent amount and, to the extent so financed, the
Borrowers obligation to make such payment shall be discharged and replaced by
the resulting Base Rate Borrowing. If the Borrower fails to make such payment
when due, the Agent shall notify each Lender of the applicable LC Disbursement,
the payment then due from the Borrower in respect thereof and such Lenders
Percentage thereof. Promptly following receipt of such notice, each Lender
shall pay to the Agent its Percentage

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of the payment then due from the Borrower, in the same manner as provided
in Section 2.1(a) with respect to Loans made by such Lender (and Section 2.1(a)
shall apply, mutatis mutandis, to the payment obligations of the Lenders), and
the Agent shall promptly pay to the Issuing Bank the amounts so received by it
from the Lenders. Promptly following receipt by the Agent of any payment from
the Borrower pursuant to this paragraph, the Agent shall distribute such
payment to the Issuing Bank or, to the extent that Lenders have made payments
pursuant to this paragraph to reimburse the Issuing Bank, then to such Lenders
and the Issuing Bank as their interests may appear. Any payment made by a
Lender pursuant to this paragraph to reimburse the Issuing Bank for any LC
Disbursement (other than the funding of Base Rate Loans as contemplated above)
shall not constitute a Loan and shall not relieve the Borrower of its
obligation to reimburse such LC Disbursement.

(f) The Borrowers obligation to reimburse LC Disbursements as provided in
paragraph (e) of this Section shall be absolute, unconditional and irrevocable,
and shall be performed strictly in accordance with the terms of this Agreement
under any and all circumstances whatsoever and irrespective of (i) any lack of
validity or enforceability of any Letter of Credit or this Agreement, or any
term or provision therein, (ii) any draft or other document presented under a
Letter of Credit proving to be forged, fraudulent or invalid in any respect or
any statement therein being untrue or inaccurate in any respect, (iii) payment
by the Issuing Bank under a Letter of Credit against presentation of a draft or
other document that does not comply with the terms of such Letter of Credit, or
(iv) any other event or circumstance whatsoever, whether or not similar to any
of the foregoing, that might, but for the provisions of this Section,
constitute a legal or equitable discharge of, or provide a right of setoff
against, the Borrowers obligations hereunder. Neither the Agent, the Lenders
nor the Issuing Bank shall have any liability or responsibility by reason of or
in connection with the issuance or transfer of any Letter of Credit or any
payment or failure to make any payment thereunder (irrespective of any of the
circumstances referred to in the preceding sentence), or any error, omission,
interruption, loss or delay in transmission or delivery of any draft, notice or
other communication under or relating to any Letter of Credit (including any
document required to make a drawing thereunder), any error in interpretation of
technical terms or any consequence arising from causes beyond the control of
the Issuing Bank; provided that the foregoing shall not be construed to excuse
the Issuing Bank from liability to the Borrower to the extent of any direct
damages (as opposed to consequential damages, claims in respect of which are
hereby waived by the Borrower to the extent permitted by applicable law)
suffered by the Borrower that are caused by the Issuing Banks failure to
exercise care when determining whether drafts and other documents presented
under a Letter of Credit comply with the terms thereof. The parties hereto
expressly agree that, in the absence of gross negligence or willful misconduct
on the part of the Issuing Bank (as finally determined by a court of competent
jurisdiction), the Issuing Bank shall be deemed to have exercised care in each
such determination. In furtherance of the foregoing and without limiting the
generality thereof, the parties agree that, with respect to documents presented
which appear on their face to be in substantial compliance with the terms of a
Letter of Credit, the Issuing Bank may, in its sole discretion, either accept
and make payment upon such documents without responsibility for further
investigation, regardless of any notice or information to the

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contrary, or refuse to accept and make payment upon such documents if such
documents are not in strict compliance with the terms of such Letter of Credit.

(g) The Issuing Bank shall, promptly following its receipt thereof,
examine all documents purporting to represent a demand for payment under a
Letter of Credit. The Issuing Bank shall promptly notify the Agent and the
Borrower by telephone (confirmed by telecopy) of such demand for payment and
whether the Issuing Bank has made or will make an LC Disbursement thereunder;
provided that any failure to give or delay in giving such notice shall not
relieve the Borrower of its obligation to reimburse the Issuing Bank and the
Lenders with respect to any such LC Disbursement.

(h) If the Issuing Bank shall make any LC Disbursement, then, unless the
Borrower shall reimburse such LC Disbursement in full on the date such LC
Disbursement is made, the unpaid amount thereof shall bear interest, for each
day from and including the date such LC Disbursement is made to but excluding
the date that the Borrower reimburses such LC Disbursement, at the rate per
annum then applicable to Base Rate Loans; provided that, if the Borrower fails
to reimburse such LC Disbursement when due pursuant to paragraph (e) of this
Section, then the unpaid amount thereof shall bear interest from the date
reimbursement was due until the date payment is made at the Past Due Rate.
Interest accrued pursuant to this paragraph shall be for the account of the
Issuing Bank, except that interest accrued on and after the date of payment by
any Lender pursuant to paragraph (e) of this Section to reimburse the Issuing
Bank shall be for the account of such Lender to the extent of such payment.

(i) The Issuing Bank may be replaced at any time by written agreement
among the Borrower, the Agent, the replaced Issuing Bank and the successor
Issuing Bank. The Agent shall notify the Lenders of any such replacement of
the Issuing Bank. At the time any such replacement shall become effective, the
Borrower shall pay all unpaid fees accrued for the account of the replaced
Issuing Bank pursuant to Section 2.7(c). From and after the effective date of
any such replacement, (i) the successor Issuing Bank shall have all the rights
and obligations of the Issuing Bank under this Agreement with respect to
Letters of Credit to be issued thereafter and (ii) references herein to the
term Issuing Bank shall be deemed to refer to such successor or to any
previous Issuing Bank, or to such successor and all previous Issuing Banks, as
the context shall require. After the replacement of an Issuing Bank hereunder,
the replaced Issuing Bank shall remain a party hereto and shall continue to
have all the rights and obligations of an Issuing Bank under this Agreement
with respect to Letters of Credit issued by it prior to such replacement, but
shall not be required to issue additional Letters of Credit.

(j) If (i) any Event of Default shall occur and be continuing, on the
Business Day that the Borrower receives notice from the Agent or the Majority
Lenders demanding the deposit of cash collateral pursuant to this paragraph, or
(ii) any Letter of Credit will expire after the Maturity Date as allowed by
Section 2.2(c) then at least ten (10) days before the Maturity Date, the
Borrower shall deposit in an account with the Agent, in the name of the Agent
and for the benefit of the Lenders, an amount in cash equal to the LC Exposure
as of such date plus any accrued and unpaid interest thereon; provided that the

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obligation to deposit such cash collateral shall become effective
immediately, and such deposit shall become immediately due and payable, without
demand or other notice of any kind, upon the occurrence of any Event of Default
with respect to the Borrower described in clause (h) or (i) of Section 7.1.
Such deposit shall be held by the Agent as collateral for the payment and
performance of the obligations of the Borrower under this Agreement. The Agent
shall have exclusive dominion and control, including the exclusive right of
withdrawal, over such account. Other than any interest earned on the
investment of such deposits, which investments shall be made at the option and
sole discretion of the Agent and at the Borrowers risk and expense, such
deposits shall not bear interest. Interest or profits, if any, on such
investments shall accumulate in such account. Moneys in such account shall be
applied by the Agent to reimburse the Issuing Bank for LC Disbursements for
which it has not been reimbursed and, to the extent not so applied, shall be
held for the satisfaction of the reimbursement obligations of the Borrower for
the LC Exposure at such time or, if the maturity of the Loans has been
accelerated, be applied to satisfy other obligations of the Borrower under this
Agreement. If the Borrower is required to provide an amount of cash collateral
hereunder as a result of the occurrence of an Event of Default, such amount (to
the extent not applied as aforesaid) shall be returned to the Borrower within
three Business Days after all Events of Default have been cured or waived.




2.3 Payments.

(a) Except to the extent otherwise provided herein, all payments of
principal, interest and other amounts to be made by the Borrower hereunder,
under the Notes and under the other Credit Documents shall be made in
immediately available funds to the Agent at its principal office in New York,
New York (or in the case of a successor Agent, at the principal office of such
successor Agent in the United States), not later than 1:00 p.m., New York, New
York time on the date on which such payment shall become due (each such payment
made after such time on such due date to be deemed to have been made on the
next succeeding Business Day).

(b) The Borrower may, at the time of making each payment hereunder, under
any Note or under any other Credit Document, specify to the Agent the Loans or
other amounts payable by the Borrower hereunder or thereunder to which such
payment is to be applied (and in the event that it fails so to specify, such
payment shall be applied to the Loans (first to the Swing Loans) or, if no
Loans are outstanding, to other amounts then due and payable, provided that if
no Loans or other amounts are then due and payable or an Event of Default has
occurred and is continuing, the Agent may apply such payment to the Obligations
in such order as it may elect in its sole discretion, but subject to the other
terms and conditions of this Agreement, including without limitation Section
2.4 hereof). Each payment received by the Agent hereunder, under any Note or
under any other Credit Document for the account of a Lender shall be paid
promptly to such Lender, in immediately available funds. If the Agent receives
a payment for the account of a Lender prior to 1:00 p.m., New York, New York
time, such payment must be delivered to the Lender on that same day and if it
is not so delivered due to the fault of the Agent, the Agent shall pay to the
Lender entitled to the payment the interest accrued on the amount of the
payment pursuant to said Lenders Note from the date the Agent receives the
payment to the

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date the Lender received the payment. The Agent may apply payments
received from the Borrower to pay any unpaid principal and interest on the
Swing Loans before making payment to each Lender of amounts due under the Notes
other than the Swing Loan Note. Loans may be prepaid only if the accompanying
Funding Loss, if any, is also paid.

(c) If the due date of any payment hereunder or under any Note falls on a
day which is not a Business Day or a Eurodollar Business Day, as the case may
be, the due date for such payments shall be extended to the next succeeding
Business Day or Eurodollar Business Day, respectively, and interest shall be
payable for any principal so extended for the period of such extension;
provided, however, that with respect to Eurodollar Rate Borrowings and Money
Market LIBOR Loans if such extension would cause the Eurodollar Business Day of
payment to fall in another calendar month, the payment shall be due on the
Eurodollar Business Day next preceding the due date of the payment.

(d) The Borrower shall give the Agent at least one (1) Business Days
prior written notice of the Borrowers intent to make any payment of principal
or interest under the Credit Documents not scheduled to be paid under the
Credit Documents. Any such notification of payment shall be irrevocable after
it is made by the Borrower. Upon receipt by the Agent of such notification of
payment, it shall deliver same to the other Lenders.

(e) All payments by the Borrower hereunder or under any other Credit
Documents shall be made free and clear of and without deduction for or on
account of any Taxes, including withholding and other charges of any nature
whatsoever imposed by any taxing authority excluding in the case of each Lender
taxes imposed on or measured by its net income or franchise taxes imposed in
lieu of net income taxes by the jurisdiction in which it is organized or
through which it acts for purposes of this Agreement. If any withholding or
deduction from any payment to be made to, or for the account of, a Lender by
the Borrower hereunder or under any other Credit Document is required in
respect of any Taxes pursuant to any applicable law, rule, or regulation, then
the Borrower will (i) pay to the relevant authority the full amount required to
be so withheld or deducted; (ii) to the extent available, promptly forward to
the Agent an official receipt or other documentation satisfactory to the Agent
evidencing such payment to such authority; and (iii) pay to the Agent, for the
account of each affected Lender, such additional amount or amounts as are
necessary to ensure that the net amount actually received by such Lender will
equal the full amount such Lender would have received had no such withholding
or deduction been required. Each Lender shall determine such additional amount
or amounts payable to it (which determination shall, in the absence of manifest
error, be conclusive and binding on the Borrower). If a Lender becomes aware
that any such withholding or deduction from any payment to be made by the
Borrower hereunder or under any other Credit Document is required, then such
Lender shall promptly notify the Agent and the Borrower thereof stating the
reasons therefor and the additional amount required to be paid under this
Section. Each Lender shall execute and deliver to the Agent and Borrower such
forms as it may be required to execute and deliver pursuant to subsection (f)
below. To the extent that any such withholding or deduction results from the
failure of a Lender to provide a form

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required by subsection (f) below (unless such failure is due to some
prohibition under applicable Legal Requirements), the Borrower shall have no
obligation to pay the additional amount required by clause (iii) above.
Anything in this Section notwithstanding, if any Lender elects to require
payment by the Borrower of any material amount under this Section, the Borrower
may, within 60 days after the date of receiving notice thereof and so long as
no Default shall have occurred and be continuing, elect to terminate such
Lender as a party to this Agreement; provided that, concurrently with such
termination the Borrower shall (1) if the Agent and each of the other Lenders
shall consent, pay that Lender all principal, interest and fees and other
amounts owed to such Lender through such date of termination or (2) have
arranged for another institution approved by the Agent (such approval not to be
unreasonably withheld) as of such date, to become a substitute Lender for all
purposes under this Agreement in the manner provided in Section 10.5; provided
further that, prior to substitution for any Lender, the Borrower shall have
given written notice to the Agent of such intention and the Lenders shall have
the option, but no obligation, for a period of 60 days after receipt of such
notice, to increase their Commitments pro rata based on their Lender
Commitments in order to replace the affected Lender in lieu of such
substitution.

(f) With respect to each Lender which is organized under the laws of a
jurisdiction outside the United States, on the day of the initial borrowing
from each such Lender hereunder and from time to time thereafter if requested
by the Borrower or the Agent, such Lender shall provide the Agent and the
Borrower with the forms prescribed by the Internal Revenue Service of the
United States certifying as to such Lenders status for purposes of determining
exemption from United States withholding taxes with respect to all payments to
be made to such Lender hereunder or other documents satisfactory to such Lender
and the Agent indicating that all payments to be made to such Lender hereunder
are not subject to United States withholding tax or are subject to such tax at
a rate reduced by an applicable tax treaty. Unless the Borrower and the Agent
shall have received such forms or such documents indicating that payments
hereunder are not subject to United States withholding tax or are subject to
such tax at a rate reduced by an applicable tax treaty, the Borrower or the
Agent shall withhold taxes from such payments at the applicable statutory rate
in the case of payments to or for any Lender organized under the laws of a
jurisdiction outside the United States.




2.4 Pro Rata Treatment. Except to the extent otherwise provided herein:
(a) each borrowing from the Lenders under Section 2.1(a) hereof shall be made
ratably from the Lenders on the basis of their respective Percentages, except
as provided in Section 2.7(c)(ii) each payment of the Fee (hereinafter defined)
shall be made for the account of the Lenders, and shall be applied, pro rata,
according to the Lenders respective Lender Commitment; and (b) each payment by
the Borrower of principal or interest on the Committed Loans other than the
Swing Loans, of any other sums advanced by the Lenders pursuant to the Credit
Documents, and of any other amount owed to the Lenders other than the Fee,
payments of Swing Loans, or any other sums designated by this Agreement as
being owed to a particular Lender, shall be made to the Agent for the account
of the Lenders pro rata in accordance with the respective unpaid principal
amounts of the

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Committed Loans (other than Swing Loans) held by the Lenders. Payments of
Swing Loans shall be for JPMCs own account.




2.5 Non-Receipt of Funds by the Agent. Unless the Agent shall have been
notified by a Lender or the Borrower (the Payor) prior to the date on which
such Lender is to make payment to the Agent of the proceeds of a Loan (or
purchase of a portion of a Swing Loan) to be made by it hereunder or the
Borrower is to make a payment to the Agent for the account of one or more of
the Lenders, as the case may be (such payment being herein called the Required
Payment), which notice shall be effective upon receipt, that the Payor does
not intend to make the Required Payment to the Agent, the Agent may assume that
the Required Payment has been made and may, in reliance upon such assumption
(but shall not be required to), make the amount thereof available to the
intended recipient on such date and, if the Payor has not in fact made the
Required Payment to the Agent, the recipient of such payment shall, on demand,
pay to the Agent the amount made available by the Agent together with interest
thereon in respect of the period commencing on the date such amount was so made
available by the Agent until the date the Agent recovers such amount at a rate
per annum equal to (a) the Past Due Rate for such period if the recipient
returning a Required Payment is the Borrower, or (b) the Federal Funds
Effective Rate for such period if the recipient returning a Required Payment is
the Agent or a Lender.




2.6 Sharing of Payments, Etc. The Borrower agrees that, in addition to
(and without limitation of) any right of set-off, bankers lien or counterclaim
a Lender may otherwise have, each Lender shall be entitled, at its option, to
offset balances held by it for the account of the Borrower at any of its
offices, against any principal of or interest on any of such Lenders Loans to
the Borrower hereunder, or other Obligations of the Borrower hereunder, which
is not paid (regardless of whether such balances are then due to the Borrower),
in which case it shall promptly notify the Borrower and the Agent thereof,
provided that such Lenders failure to give such notice shall not affect the
validity thereof. If a Lender shall obtain payment of any principal of or
interest on any Committed Loan made by it under this Agreement (other than
Swing Loans made by JPMC), or other Obligation then due to such Lender
hereunder, through the exercise of any right of set-off, bankers lien,
counterclaim or similar right, or otherwise, it shall promptly purchase from
the other Lenders portions of the Loans made or other Obligations held (other
than Swing Loans made by JPMC), by the other Lenders in such amounts, and make
such other adjustments from time to time as shall be equitable to the end that
all the Lenders shall share the benefit of such payment (net of any expenses
which may be incurred by such Lender in obtaining or preserving such benefit)
pro rata in accordance with the unpaid principal and interest on the
Obligations then due to each of them. To such end all the Lenders shall make
appropriate adjustments among themselves (by the resale of participations sold
or otherwise) if such payment is rescinded or must otherwise be restored.
Nothing contained herein shall require any Lender to exercise any such right or
shall affect the right of any Lender to exercise, and retain the benefits of
exercising, any such right with respect to any other indebtedness or obligation
of the Borrower.

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2.7 Fees. The Borrower shall pay fees equal to the following:

(a) An amount payable as a facility fee by the Borrower to the Agent for
the account of each Lender equal to the following percentage per annum
multiplied by the Commitment (and after the Commitment terminates or expires,
the aggregate Revolving Credit Exposures), which will be in effect whenever
and for so long as the Borrower has received the corresponding Credit Rating
(the method of determining the Credit Rating based on multiple ratings to be
the same as set forth and used to determine the Credit Rating for the
definition of Applicable Margin):

|               |  |              |       |  
|-------------- |  | ------------ | ----- | -
|CREDIT RATING  |  | FACILITY FEE
|               |  |             
|A/A2 or better |  |              | 0.125 | %
|A-/A3          |  |              | 0.150 | %
|BBB+/Baa1      |  |              | 0.150 | %
|BBB/Baa2       |  |              | 0.150 | %
|BBB-/Baa3      |  |              | 0.200 | %

If the Credit Rating is worse than BBB-/Baa3, or if there is no Credit Rating,
then for that calendar quarter and for so long thereafter as the Credit Rating
is worse than BBB-/Baa3 or if there is no Credit Rating, the facility fee will
be equal to the daily unused amount of the Commitment (Swing Loans shall be
deemed to be a utilization of the Commitment solely for the purposes of this
Section 2.7(a)) multiplied by 0.250% per annum. The facility fee is payable in
arrears on or before the tenth (10th) day of each January, April, July and
October prior to termination or expiration of the Commitment, and on demand
thereafter.

(b) If the Maturity Date is extended pursuant to Section 9 of this
Agreement, an amount payable as an extension fee by the Borrower to the Agent
for the account of each Lender equal to 0.200% of each Lenders Lender
Commitment at that time payable on the first day of the extension.

(c) (i) to the Agent for the account of each Lender a participation fee
with respect to its participations in Letters of Credit, which shall accrue at
the Applicable Margin provided for Eurodollar Rate Borrowings on the average
daily amount of the LC Exposure (excluding any portion thereof attributable to
unreimbursed LC Disbursements) during the period from and including the date of
this Agreement to but excluding the later of the date of termination of the
Commitment and the date on which there ceases to be any LC Exposure, and (ii)
to the Issuing Bank a nonrefundable fronting fee which shall accrue at the rate
of 0.100% per annum on the face amount of each Letter of Credit, as well as the
Issuing Banks standard fees (not to be less than $1,500.00 per transaction)
with respect to the issuance, amendment, renewal or extension of any Letter of
Credit or processing of drawings thereunder. Participation fees and fronting
fees accrued through and including the last day of March, June, September and
December of each year shall be payable on the tenth (10th) day following such
last day, commencing on the first such date to occur after the date of this
Agreement; provided that all such fees shall be payable on the date on which
the Commitment terminates and any such fees accruing after the date on which
the

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Commitment terminates shall be payable on demand. Any other fees payable
to the Issuing Bank pursuant to this paragraph shall be payable within ten (10)
days after demand. All participation fees and fronting fees shall be computed
on the basis of a year of 360 days and shall be payable for the actual number
of days elapsed (including the first day but excluding the last day).

The Fee shall not be refundable (except as required by Section 3.1(c) of
this Agreement). Any portion of the Fee which is not paid by the Borrower when
due shall bear interest at the Past Due Rate from the date due until the date
paid by the Borrower. The Fee shall be calculated on the actual number of days
elapsed in a year deemed to consist of 360 days.




2.8 Money Market Borrowings.

(a) The Borrower may, as set forth in this Section, whenever at the time
of the request therefor the Borrower has received an Acceptable Credit Rating,
request the Lenders prior to the Maturity Date to make offers to make Money
Market Loans to the Borrower, not to exceed, at such time, the lesser of (i)
the difference between the Commitment and the aggregate Revolving Credit
Exposures, and (ii) fifty percent (50%) of the Commitment. The Lenders may,
but shall have no obligation to, make such offers and the Borrower may, but
shall have no obligation to, accept any such offers in the manner set forth in
this Section. The Borrower shall pay the Agent a fee of $2,000.00 for each
Money Market Quote Request provided below, payable monthly based on the
requests for the previous month.

(b) When the Borrower wishes to request offers to make Money Market Loans
under this Section, it shall transmit to the Agent (in care of Ms. Angelica M.
Castillo, Loan and Agency Services, 1111 Fannin, Houston, Texas 77002,
Facsimile No. 713-750-2228, telephone number 713-750-2513) by facsimile
transmission a Money Market Quote Request (Money Market Quote Request)
substantially in the form of Exhibit E hereto so as to be received no later
than 12:00 noon, New York, New York time on (i) the fourth Eurodollar Business
Day prior to the date of borrowing proposed therein, in the case of a LIBOR
Auction or (ii) the Business Day next preceding the date of borrowing proposed
therein, in the case of an Absolute Rate Auction (or, in either case, such
other time or date as the Borrower and the Agent shall have mutually agreed and
shall have notified to the Lenders not later than the date of the Money Market
Quote Request for the first LIBOR Auction or Absolute Rate Auction for which
such change is to be effective) specifying:



| |                                                                                                                                                                           
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (x) the proposed date of borrowing, which shall
be a Eurodollar Business Day in the case of a LIBOR
Auction or a Business Day in the case of an Absolute
Rate Auction, and



| |                                                                                                                 
| | ----------------------------------------------------------------------------------------------------------------
| | (y) the aggregate amount of such borrowing,
which shall be $20,000,000.00 or a larger multiple
of $1,000,000.00.

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The Borrower may request offers to make Money Market Loans for more than one
Interest Period in a single Money Market Quote Request. No Money Market Quote
Request shall be given within five (5) Eurodollar Business Days (or such other
number of days as the Borrower and the Agent may agree in writing ) of any
other Money Market Quote Request.

(c) Promptly upon receipt of a Money Market Quote Request, the Agent shall
send to the Lenders by telex or facsimile transmission an Invitation for Money
Market Quotes substantially in the form of Exhibit F hereto, which shall
constitute an invitation by the Borrower to each Lender to submit Money Market
Quotes offering to make the Money Market Loans to which such Money Market Quote
Request relates in accordance with this Section.

(d) (i) Each Lender may submit a Money Market Quote containing an offer or
offers to make Money Market Loans in response to any Invitation for Money
Market Quotes. Each Money Market Quote must comply with the requirements of
this subsection (d) and must be received by the Agent by telex or facsimile
transmission not later than (x) 9:30 a.m. New York, New York time on the third
Eurodollar Business Day prior to the proposed date of borrowing, in the case of
a LIBOR Auction or (y) 9:30 a.m. New York, New York time on the proposed date
of borrowing, in the case of an Absolute Rate Auction; provided that Money
Market Quotes submitted by the Agent (or any affiliate of the Agent or its
Designated Lender) in the capacity of a Lender may be submitted, and may only
be submitted, if the Agent or such affiliate notifies the Borrower of the terms
of the offer or offers contained therein not later than thirty (30) minutes
prior to the applicable deadline for the other Lenders. Any Money Market Quote
so made shall be irrevocable except with the written consent of the Agent given
on the instructions of the Borrower. If, and only if, the Borrower elected in
the applicable Money Market Quote Request to permit the Lenders to designate
Designated Lenders to fund such Money Market Loans, such Money Market Loans may
be funded by such Lenders Designated Lender (if any) as provided in Section
10.5(f), however such Lender shall not be required to specify in its Money
Market Quote whether such Money Market Loans will be funded by such Designated
Lender.

(ii) Each Money Market Quote shall be in substantially the form of Exhibit
G hereto and shall in any case specify:



| |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (1) the principal amount of the Money Market Loan for which each
offer is being made, which principal amount (w) may be greater than or
less than the Lender Commitment of the quoting Lender, (x) must be
$5,000,000.00 or a larger multiple of $500,000.00, (y) may not exceed the
principal amount of Money Market Loans for which offers were requested,
and (z) may be subject to an aggregate limitation as to the principal
amount of Money Market Loans for which offers being made by such quoting
Lender may be accepted,



| |                                                                                                                                             
| | --------------------------------------------------------------------------------------------------------------------------------------------
| | (2) in the case of a LIBOR Auction, the margin (the Money Market
Margin) above or below the applicable Eurodollar Interbank Rate )
offered

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| |                                                                                                                                                                   
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | for each such Money Market Loan, expressed as a percentage
(specified to the nearest 1/10,000th of 1%) to be added to or subtracted
from such applicable rate, and



| |                                                                                                                                                                                                    
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (3) in the case of an Absolute Rate Auction, the rate of interest
per annum (specified to the nearest 1/10,000th of 1%) (the Money Market
Absolute Rate) offered for each such Money Market Loan.

A Money Market Quote may set forth up to five (5) separate offers by the
quoting Lender with respect to each Interest Period specified in the related
Invitation for Money Market Quotes.

(iii) Any Money Market Quote shall be disregarded if it:



| |                                                                                                                                              
| | ---------------------------------------------------------------------------------------------------------------------------------------------
| | (1) is not substantially in conformity with Exhibit G hereto or does
not specify all of the information required by subsection (d)(ii) above;



| |                                                          
| | ---------------------------------------------------------
| | (2) contains qualifying, conditional or similar language;



| |                                                                                                                         
| | ------------------------------------------------------------------------------------------------------------------------
| | (3) proposes terms other than or in addition to those set forth in
the applicable Invitation for Money Market Quotes; or



| |                                                                 
| | ----------------------------------------------------------------
| | (4) arrives after the time set forth in subsection (d)(i) above.

(e) The Agent shall promptly notify the Borrower (i) of the terms of each
proper Money Market Quote and the identity of the Lender submitting such Money
Market Quote, and (ii) of any Money Market Quote that amends, modifies or is
otherwise inconsistent with a previous Money Market Quote submitted by such
Lender with respect to the same Money Market Quote Request. Any such
subsequent Money Market Quote shall be disregarded by the Agent unless such
subsequent Money Market Quote is submitted solely to correct a manifest error
in such former Money Market Quote. The Agents notice to the Borrower shall
specify (1) the aggregate principal amount of Money Market Loans for which
offers have been received for each Interest Period specified in the related
Money Market Quote Request, (2) the respective principal amounts and Money
Market Margins or Money Market Absolute Rates, as the case may be, so offered,
and (3) if applicable, limitations on the aggregate principal amount of Money
Market Loans for which offers in any single Money Market Quote may be accepted.

(f) Not later than 10:30 a.m. New York, New York time on (i) the third
Eurodollar Business Day prior to the proposed date of borrowing, in the case of
a LIBOR Auction, or (ii) the proposed date of borrowing, in the case of an
Absolute Rate Auction, the Borrower shall notify the Agent of its acceptance or
non-acceptance of the offers so notified to it pursuant to subsection (e)
above. In the case of acceptance, such notice (a Notice of Money Market
Borrowing) shall specify the aggregate principal amount of offers for each
Interest Period that are accepted. The Borrower may accept any Money Market
Quote in whole or in part; provided that:

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| |                                                                                                                                               
| | ----------------------------------------------------------------------------------------------------------------------------------------------
| | (1) the aggregate principal amount of each borrowing may not exceed
the applicable amount set forth in the related Money Market Quote
Request;



| |                                                                                                      
| | -----------------------------------------------------------------------------------------------------
| | (2) the principal amount of each borrowing must be $5,000,000.00 or
a larger multiple of $500,000.00;



| |                                                                                                                                                 
| | ------------------------------------------------------------------------------------------------------------------------------------------------
| | (3) acceptance of offers may only be made on the basis of ascending
Money Market Margins or Money Market Absolute Rates, as the case may be;
and



| |                                                                                                                                                                    
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (4) the Borrower may not accept any offer that is described in
subsection (d)(iii) above or that otherwise fails to comply with the
requirements of this Agreement.

(g) If offers are made by two or more Lenders with the same Money Market
Margins or Money Market Absolute Rates, as the case may be, for a greater
aggregate principal amount than the amount in respect of which such offers are
accepted for the related Interest Period, the principal amount of Money Market
Loans in respect of which such offers are accepted shall be allocated by the
Agent among such Lenders as nearly as possible (in multiples of $500,000.00, as
the Agent may deem appropriate) in proportion to the aggregate principal
amounts of such offers. The Agent shall promptly (and in any event within one
(1) Business Day after such offers are accepted) notify the Borrower and each
such Lender in writing of any such allocation of Money Market Loans.
Determinations by the Agent of the allocation of Money Market Loans shall be
conclusive in the absence of manifest error.

(h) Upon receipt of the Borrowers Notice of Money Market Borrowing, the
Agent shall, on the date such Notice of Money Market Borrowing is received by
the Agent, promptly notify each Lender of the principal amount of the Money
Market Loans accepted by the Borrower and of such Lenders share (if any) of
such Money Market Loans and such Notice of Money Market Borrowing shall not
thereafter be revocable by the Borrower. Any Lender so notified shall fund
such Money Market Loans at the times provided in Section 2.1(b). A Lender that
is notified that it has been selected to make a Money Market Loan may designate
its Designated Lender (if any) to fund such Money Market Loan on its behalf, as
described in Section 10.5(f). Any Designated Lender which funds a Money Market
Loan shall on and after the time of such funding become the obligee under such
Money Market Loan and be entitled to receive payment thereof when due. No
Lender shall be relieved of its obligation to fund a Money Market Loan, and no
Designated Lender shall assume such obligation, prior to the time the
applicable Money Market Loan is funded. Money Market Loans shall be evidenced
by a promissory note in the form of Exhibit C-2 attached hereto.

(i) Notwithstanding anything to the contrary contained herein, each Lender
shall be required to fund its Percentage of each Committed Loan in accordance
with Section 2.1 despite the fact that any Lenders Lender Commitment may have
been or may be exceeded as a result of such Lenders making of Money Market
Loans.

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(j) Each Money Market LIBOR Loan shall bear interest on the outstanding
principal amount thereof, for the Interest Period applicable thereto, at a rate
per annum equal to the sum of the Eurodollar Interbank Rate for such Interest
Period plus (or minus) the Money Market Margin quoted by the Lender making such
Loan in accordance with Section 2.8. Each Money Market Absolute Rate Loan
shall bear interest on the outstanding principal amount thereof, for the
Interest Period applicable thereto, at a rate per annum equal to the Money
Market Absolute Rate quoted by the Lender making such Loan in accordance with
Section 2.8. Such interest shall be payable on each Interest Payment Date.
Each Money Market Loan shall mature at the end of each Interest Period, as
specified in the Money Market Quote.




2.9 Reduction of Commitment.

(a) Unless previously terminated, the Commitment shall terminate on the
Maturity Date.

(b) The Borrower may on three (3) occasions reduce the Commitment;
provided that (i) each reduction in the Commitment shall be a minimum of
$50,000,000, (ii) the total Commitment may not be reduced to less than
$200,000,000, (iii) after any reduction in the Commitment, the Borrowers
option to increase the Commitment provided in Section 2.1(d) shall terminate,
and (iv) no reduction in the Commitment will be allowed if a Default is then in
existence.

(c) The Borrower shall notify the Agent of any election to reduce the
Commitment under Section 2.9(b) at least three (3) Business Days prior to the
effective date of such reduction, specifying such election and the effective
date thereof. Promptly following receipt of any notice, the Agent shall advise
the Lenders of the contents thereof. Each notice delivered pursuant to this
Section shall be irrevocable. Any reduction of the Commitment shall be
permanent. Each reduction in the Commitment shall be made ratably among the
Lenders in accordance with their respective Lender Commitments.




2.10 Additional Guarantees. From time to time, certain of the direct or
indirect owners of legal interests in the Borrower may request to guarantee
collection of the unpaid balance of the Loans remaining after application of
other recoveries against the Loans by the Administrative Agent and the Lenders.
If the Borrower notifies the Administrative Agent of such a guarantee request
and (a) supplies the Administrative Agent with the Organizational Documents of
the proposed guarantor and any other information regarding the proposed
guarantor as reasonably requested by the Administrative Agent or any of the
Lenders, including any information that the Administrative Agent is required to
obtain for any guarantor pursuant to applicable Legal Requirements, and (b) so
long as the acceptance of the guarantee from the proposed guarantor does not
violate any Legal Requirement applicable to the Administrative Agent or any of
the Lenders, the Administrative Agent agrees, on behalf of the Lenders, to
accept a guarantee from such proposed guarantor in the form attached hereto as
Exhibit K.




3.     Conditions.

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3.1 All Loans. The obligation of any Lender to make any Loan, or to
issue, renew or extend any Letter of Credit, is subject to the accuracy of all
representations and warranties of the Borrower on the date of such Loan, or
issuance, renewal or extension of such Letter of Credit, to the performance by
the Borrower of its obligations under the Credit Documents and to the
satisfaction of the following further conditions: (a) the Agent shall have
received the following, all of which shall be duly executed and in Proper Form:
(1) for Committed Loans, a Request for Loan (i) by 12:00 noon, New York, New
York time, one (1) Business Day before the date (which shall also be a Business
Day) of the proposed Loan which is to be a Base Rate Borrowing (other than
Swing Loans or Base Rate Borrowings to finance the reimbursement of an LC
Disbursement as contemplated by Section 2.2(e) hereof), (ii) by 12:00 noon, New
York, New York time, on the same Business Day of any proposed Swing Loan or
Base Rate Borrowing to finance the reimbursement of an LC Disbursement as
contemplated by Section 2.2(e) hereof, provided that by 12:00 noon, New York,
New York time on the date of the proposed Loan, Borrower shall also have
notified JPMC by telephone of its request for a Loan, or (iii) by the Rate
Designation Date of the proposed Loan which is to be a Eurodollar Rate
Borrowing; (2) for Money Market Loans the information required by Section 2.8;
(3) for Letters of Credit the documents required by Section 2.2 hereof; and (4)
such other documents as the Agent may reasonably require to satisfy itself or
the request of any Lender; (b) no Default or Event of Default shall have
occurred and be continuing; (c) the making of the Loan or issuance, renewal or
extension of such Letter of Credit, shall not be prohibited by any Legal
Requirement (in which event the applicable portion of the Fee will not be
charged to the Borrower); (d) the Borrower shall have paid all legal fees and
expenses of the type described in Section 5.10 hereof through the date of such
Loan; (e) in the case of a Committed Loan other than a Swing Loan, all Swing
Loans then outstanding shall have been paid or shall be paid with the proceeds
of such Loan and (f) the Agent shall have received an Officers Certificate
certifying the information set forth therein as of the end of the immediately
preceding fiscal quarter.




3.2 First Loan. In addition to the matters described in Section 3.1
hereof, the obligation of the Lenders to make the first Loan under this
Agreement is subject to the receipt by the Lenders of each of the following, in
Proper Form: (a) the Notes, executed by the Borrower; (b) a separate
certificate executed by each of the Secretary of the Borrower and the
Secretary of the Parent dated as of the date hereof; (c) a separate certificate
from the Secretary of State or other appropriate public official of Maryland as
to the continued existence and good standing of each of the Parent and the
Borrower; (d) a separate certificate from the appropriate public official of
Maryland as to the due qualification and good standing of each of the Parent
and the Borrower; (e) a legal opinion from independent counsel for the Parent,
the Borrower and the Guarantors as to the matters set forth on Exhibit D
acceptable to the Lenders; (f) policies of insurance addressed to the Agent
reflecting the insurance required by Section 5.7 hereof; (g) an Officers
Certificate in the form of Exhibit A as of the end of the immediately preceding
fiscal quarter; (h) a certificate from Borrower and Parent setting forth the
pro forma calculations of Secured Debt to Total Asset Value Ratio, Coverage
Ratio, Fixed Charge Coverage Ratio, Tangible Net Worth, Debt to Total Asset
Value Ratio, and the Pool pursuant to Section 5.15 (which include actual
figures as of June 30, 2003; and (i) any Guaranty required by Section 5.15

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together with such Guarantors organizational documents and certificates
of existence and good standing from the state of its organization; and to the
further condition that, at the time of the initial Loan, all legal matters
incident to the transactions herein contemplated shall be satisfactory to Locke
Liddell & Sapp LLP, counsel for the Agent.




3.3 Options Available. The outstanding principal balance of the Notes
shall bear interest at the Base Rate; provided, that (1) all past due amounts,
both principal and accrued interest, shall bear interest at the Past Due Rate,
and (2) subject to the provisions hereof, Borrower shall have the option of
having all or any portion of the principal balance of the Notes, other than the
Swing Loan Note, from time to time outstanding bear interest at a Eurodollar
Rate. The records of the Lenders with respect to Interest Options, Interest
Periods and the amounts of Loans to which they are applicable shall be prima
facie evidence thereof. Interest on the Loans shall be calculated at the Base
Rate except where it is expressly provided pursuant to this Agreement that a
Eurodollar Rate is to apply.




3.4 Designation and Conversion. Borrower shall have the right to
designate or convert its Interest Options in accordance with the provisions
hereof. Provided no Event of Default has occurred and is continuing and
subject to the provisions of Section 3.5, Borrower may elect to have a
Eurodollar Rate apply or continue to apply to all or any portion of the
principal balance of the Notes, other than the Swing Loan Note. Each change in
Interest Options shall be a conversion of the rate of interest applicable to
the specified portion of the Loans, but such conversion shall not change the
respective outstanding principal balance of the Notes. The Interest Options
shall be designated or converted in the manner provided below:

(a) Borrower shall give Agent a Request for Loan. Each such written
notice shall specify the amount of Loan which is the subject of the
designation, if any; the amount of borrowings into which such borrowings are to
be converted or for which an Interest Option is designated; the proposed date
for the designation or conversion and the Interest Period, if any, selected by
Borrower. The Request for Loan shall be irrevocable and shall be given to
Agent no later than the applicable Rate Designation Date. The Agent shall
promptly deliver the Request for Loan to the Lenders.

(b) No more than twelve (12) Eurodollar Rate Borrowings with twelve (12)
Interest Periods shall be in effect at any time.

(c) Each designation or conversion of a Eurodollar Rate Borrowing shall
occur on a Eurodollar Business Day.

(d) Except as provided in Section 3.5 hereof, no Eurodollar Rate Borrowing
shall be converted on any day other than the last day of the applicable
Interest Period.

(e) Unless a Request for Loan to the contrary is received as provided in
this Agreement, each Eurodollar Rate Borrowing will convert to a Base Rate
Borrowing after the expiration of the Interest Period.

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3.5 Special Provisions Applicable to Eurodollar Rate Borrowings and Money
Market Loans.

(a) If the adoption of any applicable Legal Requirement or any change in
any applicable Legal Requirement or in the interpretation or administration
thereof by any Governmental Authority or compliance by the Lenders with any
request or directive (whether or not having the force of law) of any central
bank or other Governmental Authority shall at any time make it unlawful or
impossible for any Lender to permit the establishment of or to maintain any
Eurodollar Rate Borrowing or a Money Market Loan, or to increase the cost to
such Lender of participating in or maintaining any Letter of Credit, the
commitment of the Lenders to establish or maintain such Eurodollar Rate
Borrowing or a Money Market Loan, or to issue or participate in Letters of
Credit shall forthwith be suspended until such condition shall cease to exist
and Borrower shall forthwith, upon demand by Agent to Borrower, (1) convert the
Eurodollar Rate Borrowing with respect to which such demand was made to a Base
Rate Borrowing; (2) convert the Money Market LIBOR Loan with respect to which
such demand was made to a Loan bearing interest at the Base Rate; (3) pay all
accrued and unpaid interest to date on the amount so converted; and (4) pay any
amounts required to compensate the Lenders for any additional cost or expense
which the Lenders may incur as a result of such adoption of or change in such
Legal Requirement or in the interpretation or administration thereof and any
Funding Loss which the Lenders may incur as a result of such conversion. If,
when Agent so notifies Borrower, Borrower has given a Request for Loan
specifying a Eurodollar Rate Borrowing or a Notice of Money Market Borrowing
but the selected Interest Period has not yet begun, such Request for Loan or a
Notice of Money Market Borrowing shall be deemed to be of no force and effect,
as if never made, and the balance of the Loans specified in such Request for
Loan shall bear interest at the Base Rate until a different available Interest
Option shall be designated in accordance herewith.

(b) If the adoption of any applicable Legal Requirement or any change in
any applicable Legal Requirement or in the interpretation or administration
thereof by any Governmental Authority or compliance by any Lender with any
request or directive of general applicability (whether or not having the force
of law) of any central bank or Governmental Authority shall at any time as a
result of any portion of the principal balance of the Notes being maintained on
the basis of a Eurodollar Rate or as a Money Market Loan, or as a result of any
Lender issuing or participating in Letters of Credit:



| | (1) |  | subject any Lender (or make it apparent that
any Lender is subject) to any Taxes, or any deduction or
withholding for any Taxes, on or from any payment due under
any Eurodollar Rate Borrowing, Money Market Loan or other
amount due hereunder, other than income and franchise taxes
of the United States and its political subdivisions; or
| | --- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (2) |  | change the basis of taxation of payments due
from Borrower to any Lender under any Eurodollar Rate
Borrowing or Money Market                                                                                                                                                                                                                   

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| |     |  | Loan (otherwise than by a change in the rate of taxation of
the overall net income of a Lender); or                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
| | --- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (3) |  | impose, modify, increase or deem applicable any
reserve requirement (excluding that portion of any reserve
requirement included in the calculation of the applicable
interest rate), special deposit requirement or similar
requirement (including, but not limited to, state law
requirements and Regulation D) imposed, modified, increased
or deemed applicable by any Governmental Authority against
assets held by any Lender, or against deposits or accounts in
or for the account of any Lender, or against loans made by
any Lender, or against any other funds, obligations or other
property owned or held by any Lender; or
|
| | (4) |  | impose on any Lender any other condition
regarding any Eurodollar Rate Borrowing, Money Market Loan or
Letter of Credit;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

and the result of any of the foregoing is to increase the cost to any Lender of
agreeing to make or of making, renewing or maintaining such Eurodollar Rate
Borrowing or Money Market Loan, or issuing or participating in Letters of
Credit, or reduce the amount of principal or interest received by any Lender,
then, upon demand by Agent, Borrower shall pay to such Lender, from time to
time as specified by such Lender, additional amounts which shall compensate
such Lender for such increased cost or reduced amount. Agent will promptly
notify Borrower in writing of any event which will entitle any Lender to
additional amounts pursuant to this paragraph. A Lenders determination of the
amount of any such increased cost, increased reserve requirement or reduced
amount shall be prima facie evidence thereof. Borrower shall have the right,
if it receives from Agent any notice referred to in this paragraph, upon three
Business Days notice to Agent, either (i) to repay in full (but not in part)
any borrowing with respect to which such notice was given, together with any
accrued interest thereon, or (ii) to convert the Eurodollar Rate Borrowing
which is the subject of the notice to a Base Rate Borrowing or to convert the
Money Market LIBOR Loan which is the subject of the notice to a Loan bearing
interest at the Base Rate; provided, that any such repayment or conversion
shall be accompanied by payment of (x) the amount required to compensate a
Lender for the increased cost or reduced amount referred to in the preceding
paragraph; (y) all accrued and unpaid interest to date on the amount so repaid
or converted, and (z) any Funding Loss which any Lender may incur as a result
of such repayment or conversion.

(c) If for any reason with respect to any Interest Period Agent shall have
determined (which determination shall be prima facie evidence thereof) that:



| | (1)      Agent is unable through its customary general practices to
determine any applicable Eurodollar Rate, or                                                                                                           
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (2)     by reason of circumstances affecting the applicable market
generally, Agent is not being offered deposits in United States
dollars in such market, for the applicable Interest Period and in
an amount equal to the

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| | amount of any applicable Eurodollar Rate Borrowing requested by
Borrower, or                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (3)     any applicable Eurodollar Rate will not adequately and fairly
reflect the cost to the Lenders of making and maintaining such
Eurodollar Rate Borrowing hereunder for any proposed Interest
Period,                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|
| | then Agent shall give Borrower notice thereof and thereupon, (A)
any Request for Loan previously given by Borrower designating the
applicable Eurodollar Rate Borrowing which has not commenced as of
the date of such notice from Agent shall be deemed for all
purposes hereof to be of no force and effect, as if never given,
and (B) until Agent shall notify Borrower that the circumstances
giving rise to such notice from Agent no longer exist, each
Request for Loan requesting the applicable Eurodollar Rate shall
be deemed a request for a Base Rate Borrowing, and any applicable
Eurodollar Rate Borrowing then outstanding shall be converted,
without any notice to or from Borrower, upon the termination of
the Interest Period then in effect with respect to it, to a Base
Rate Borrowing.

(d) Borrower shall indemnify the Agent and each Lender against and hold
the Agent and each Lender harmless from any Funding Loss. This agreement shall
survive the payment of the Notes. A certificate as to any additional amounts
payable pursuant to this subsection and setting forth the reasons for the
Funding Loss submitted by Agent to Borrower shall be prima facie evidence
thereof.

(e) The Borrower shall pay to the Agent or a Lender the Eurodollar Reserve
Requirement incurred by that Lender within thirty (30) days after written
demand by Agent to the Borrower. The demand setting forth the Eurodollar
Reserve Requirement shall be prima facie evidence thereof.




3.6 Funding Offices; Adjustments Automatic. Any Lender may, if it so
elects, fulfill its obligation as to any Eurodollar Rate Borrowing or Money
Market Loan by causing a branch or affiliate of such Lender to make such Loan
and may transfer and carry such Loan at, to, or for the account of, any branch
office or affiliate of such Lender; provided, that in such event for the
purposes of this Agreement such Loan shall be deemed to have been made by such
Lender and the obligation of Borrower to repay such Loan shall nevertheless be
to such Lender and shall be deemed held by it for the account of such branch or
affiliate. Without notice to Borrower or any other person or entity, each rate
required to be calculated or determined under this Agreement shall
automatically fluctuate upward and downward in accordance with the provisions
of this Agreement.




3.7 Funding Sources, Payment Obligations. Notwithstanding any provision
of this Agreement to the contrary, each Lender shall be entitled to fund and
maintain its funding of all or any part of the Loans in any manner it sees fit,
it being understood, however, that for the purposes of this Agreement all
determinations hereunder shall be made as if each Lender had actually funded
and maintained each Eurodollar Rate Borrowing and Money Market LIBOR Loan
during each Interest Period through the

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purchase of deposits having a maturity corresponding to such Interest
Period and bearing an interest rate equal to the interest rate for such
Interest Period. Notwithstanding the foregoing, Funding Losses, increased
costs and other obligations relating to Eurodollar Rate Borrowings and Money
Market Loans described in Section 3.5 of this Agreement will only be paid by
the Borrower as and when actually incurred by the Lenders.




3.8 Mitigation, Non-Discrimination.

(a) Each Lender will notify the Borrower through the Agent of any event
occurring after the date of this Agreement which will require or enable such
Lender to take the actions described in Sections 3.5(a) or (b) of this
Agreement as promptly as practicable after it obtains knowledge thereof and
determines to request such action, and (if so requested by the Borrower through
the Agent) will designate a different lending office of such Lender for the
applicable Eurodollar Rate Borrowing or Money Market Loan or will take such
other action as the Borrower reasonably requests if such designation or action
is consistent with the internal policy of such Lender and legal and regulatory
restrictions, can be undertaken at no additional cost, will avoid the need for,
or reduce the amount of, such action and will not, in the sole opinion of such
Lender, be disadvantageous to such Lender (provided that such Lender will have
no obligation to designate a different lending office which is located in the
United States of America).

(b) None of the Lenders shall be able to pass through to the Borrower
changes and costs under Section 3.5 of this Agreement on a discriminating
basis, such that such changes and costs are not also passed through by each
Lender to other customers of such Lender similarly situated where such customer
is subject to documents providing for such pass through.

(c) If any Lender elects under Section 3.5 of this Agreement to suspend or
terminate the availability of Eurodollar Rate Borrowings for any material
period of time, and the event giving rise to such election is not generally
applicable to all of the Lenders, the Borrower may within sixty (60) days after
notification of such Lenders election, and so long as no Event of Default is
then in existence, either (i) demand that such Lender, and upon such demand,
such Lender shall promptly, assign its Lender Commitment to another financial
institution subject to and in accordance with the provisions of Section 10.5 of
this Agreement for a purchase price equal to the unpaid balance of principal,
accrued interest, the unpaid balance of the Fee and expenses owing to such
Lender pursuant to this Agreement, or (ii) pay such Lender the unpaid balance
of principal, accrued interest, the unpaid balance of the Fee and expenses
owing to such Lender pursuant to this Agreement, whereupon, such Lender shall
no longer be a party to this Agreement or have any rights or obligations
hereunder or under any other Credit Documents, and the Commitment shall
immediately and permanently be reduced by an amount equal to the Lender
Commitment of such Lender.

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4. Representations and Warranties.

To induce the Lenders to enter into this Agreement and to make the Loans,
the Borrower represents and warrants to the Agent and the Lenders as follows:




4.1 Organization. The Borrower is duly organized, validly existing and in
good standing as a real estate investment trust under the laws of the state of
Maryland; has all power and authority to conduct its business as presently
conducted; and is duly qualified to do business and in good standing in every
state where the location of its Property requires it to be qualified to do
business, unless the failure to be so qualified would not reasonably be
expected to have a Material Adverse Effect.




4.2 Financial Statements. The financial statements delivered to the Agent
fairly present, in accordance with Generally Accepted Accounting Principles
(provided, however, that the Quarterly Unaudited Financial Statements are
subject to normal year-end adjustments and may contain condensed footnotes as
permitted by regulations of the United States Securities and Exchange
Commission), the financial condition and the results of operations of the
Borrower as at the dates and for the periods indicated. No Material Adverse
Change has occurred since the dates of such financial statements. The Borrower
is not subject to any instrument or agreement which would materially prevent it
from conducting its business as it is now conducted or as it is contemplated to
be conducted.




4.3 Enforceable Obligations; Authorization. The Credit Documents are
legal, valid and binding obligations of the Parties, enforceable in accordance
with their respective terms, except as may be limited by bankruptcy, insolvency
and other laws affecting creditors rights generally and by general equitable
principles. The execution, delivery and performance of the Credit Documents
have all been duly authorized by all necessary action; are within the power and
authority of the Parties; do not and will not contravene or violate any Legal
Requirement or the Organizational Documents of the Parties; do not and will not
result in the breach of, or constitute a default under, any agreement or
instrument by which the Parties or any of their respective Property may be
bound or affected, except where such breach or default could not reasonably be
expected to have a Material Adverse Effect; and do not and will not result in
the creation of any Lien upon any Property of any of the Parties except as
expressly contemplated therein. All necessary permits, registrations and
consents for such making and performance have been obtained except where the
lack thereof would not reasonably be expected to have a Material Adverse
Effect.




4.4 Other Debt. The Borrower is not in default in the payment of any
other Indebtedness or under any agreement, mortgage, deed of trust, security
agreement or lease to which it is a party which default would reasonably be
expected to have a Material Adverse Effect.




4.5 Litigation. There is no litigation or administrative proceeding
pending or, to the knowledge of the Borrower, threatened against, or any
outstanding judgment, order or decree affecting, the Borrower before or by any
Governmental Authority which is not

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adequately covered by insurance or which, if determined adversely to the
Borrower could reasonably be expected to have a Material Adverse Effect. The
Borrower is not in default with respect to any judgment, order or decree of any
Governmental Authority which default could reasonably be expected to have a
Material Adverse Effect.




4.6 Taxes. The Borrower has filed all tax returns required to have been
filed and paid all taxes shown thereon to be due, except those for which
extensions have been obtained, those which are being contested in good faith
and those for which the Borrowers failure to file a return or pay could not
reasonably be expected to have a Material Adverse Effect.




4.7 Regulation U. None of the proceeds of any Loan or Letter of Credit
will be used for the purpose of purchasing or carrying directly or indirectly
any margin stock or for any other purpose that would constitute this
transaction a purpose credit within the meaning of Regulation U of the Board
of Governors of the Federal Reserve System.




4.8 Securities Act of 1933. Other than the Agents efforts in syndicating
the Loans (for which the Agent is responsible) neither the Borrower nor any
agent acting for it has offered the Notes or any similar obligation of the
Borrower for sale to or solicited any offers to buy the Notes or any similar
obligation of the Borrower from any Person other than the Agent or any Lender,
and neither the Borrower nor any agent acting for it will take any action which
would subject the sale of the Note to the provisions of Section 5 of the
Securities Act of 1933, as amended.




4.9 No Contractual or Corporate Restrictions. The Borrower is not a party
to, or bound by, any contract, agreement or charter or other corporate
restriction materially and adversely affecting its business, Property, assets,
operations or condition, financial or otherwise.




4.10 Investment Company Act Not Applicable. The Borrower is not an
investment company, or a company controlled by an investment company,
within the meaning of the Investment Company Act of 1940, as amended.




4.11 Public Utility Holding Company Act Not Applicable. The Borrower is
not a holding company, or a subsidiary company of a holding company, or
an affiliate of a holding company, or an affiliate of a subsidiary
company of a holding company, as such terms are defined in the Public
Utility Holding Company Act of 1935, as amended.




4.12 ERISA Not Applicable. The Borrower is not subject to any
requirements of the Employee Retirement Income Security Act of 1974 as amended
from time to time, or any rules, regulations, rulings or interpretations
adopted by the Internal Revenue Service or the Department of Labor thereunder.




5. Affirmative Covenants.

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The Borrower covenants and agrees with the Agent and the Lenders that
prior to the termination of this Agreement it will do, and if necessary cause
to be done, each and all of the following:




5.1 Taxes, Insurance, Existence, Regulations, Property, etc. At all times
(a) pay when due all taxes and governmental charges of every kind upon it or
against its income, profits or Property, unless and only to the extent that the
same shall be contested in good faith and reserves which are adequate under
Generally Accepted Accounting Principles have been established therefor, or
unless such failure to pay could not reasonably be expected to have a Material
Adverse Effect; (b) do all things necessary to preserve its existence,
qualifications, rights and franchises in all States where such qualification is
necessary or desirable, except where failure to obtain the same could not
reasonably be expected to have a Material Adverse Effect; (c) comply with all
applicable Legal Requirements in respect of the conduct of its business and the
ownership of its Property except where failure to so comply could not
reasonably be expected to have a Material Adverse Effect; and (d) cause its
Property to be protected, maintained and kept in good repair (reasonable wear
and tear excepted) and make all replacements and additions to its Property as
may be reasonably necessary to conduct its business.




5.2 Financial Statements and Information. Furnish or caused to be
furnished (which may be by electronic access) to the Agent each of the
following: (a) as soon as available and in any event within 90 days after the
end of each fiscal year of the Parent, Annual Audited Financial Statements of
the Borrower and the Parent; (b) as soon as available and in any event within
50 days after the end of each quarter (except the last quarter) of each fiscal
year of the Parent, Quarterly Unaudited Financial Statements of the Borrower
and the Parent; (c) concurrently with the financial statements provided for in
Sections 5.2(a) and (b) hereof, an Officers Certificate, together with such
schedules, computations and other information (including, without limitation,
if provided to Borrower information as to Unconsolidated Affiliates of the
Borrower), in reasonable detail, as may be required by the Agent to demonstrate
compliance with the covenants set forth herein or reflecting any non-compliance
therewith as of the applicable date, all certified as true, correct and
complete by a managing director, vice president, senior vice president,
controller, a co-controller of Borrower and of the Parent; (d) promptly after
the filing thereof, all reports to or filings made by the Parent or the
Borrower or any of its Subsidiaries with the Securities and Exchange
Commission, including, without limitation, registration statements and reports
on Forms 10-K, 10-Q and 8-K (or their equivalents); (e) within two (2) Business
Days after the receipt thereof, a copy of the notification to the Borrower or
to the Parent of the respective Credit Rating of each, or change therein, and
(f) such other information relating to the financial condition and affairs of
the Borrower and the Parent as from time to time may be reasonably requested by
any Lender. The Agent will send to each Lender the information received by the
Agent pursuant to this Section 5.2 promptly after the receipt thereof by Agent.
The financial calculations for Sections 5.3, 5.15 and 6.4 shall be made (1) on
the date of each Loan or issuance, renewal or extension of a Letter of Credit
using the best information available to the Borrower, and (2) on the last day
of each of the Parents fiscal quarters.

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5.3 Financial Tests. Have and maintain on a consolidated basis in
accordance with Generally Accepted Accounting Principles:

(a) a Secured Debt to Total Asset Value Ratio no greater than forty
percent (40%);

(b) a Coverage Ratio of not less than 2.0:1.0;

(c) a Fixed Charge Coverage Ratio of not less than 1.75:1.00;

(d) a Tangible Net Worth of at least Three Billion Five Hundred Million
Dollars ($3,500,000,000.00); and

(e) a Debt to Total Asset Value Ratio no greater than sixty percent (60%).




5.4 Inspection. In order to permit the Agent to ascertain compliance with
the Credit Documents, during normal business hours permit the Agent to inspect
its Property, to examine its files, books and records and make and take away
copies thereof, and to discuss its affairs with its officers and accountants,
all at such times and intervals and to such extent as a Lender may reasonably
desire.




5.5 Further Assurances. Promptly execute and deliver any and all other
and further instruments which may be requested by the Agent to cure any defect
in the execution and delivery of any Credit Document or more fully to describe
particular aspects of the Borrowers agreements set forth in the Credit
Documents or so intended to be.




5.6 Books and Records. Maintain books of record and account in accordance
with Generally Accepted Accounting Principles.




5.7 Insurance. Maintain insurance with such insurers, on such of its
properties, in such amounts and against such risks as is consistent with
insurance maintained by businesses of comparable type and size in the industry,
and furnish the Agent satisfactory evidence thereof promptly upon request.




5.8 Notice of Certain Matters. Notify the Agent promptly upon acquiring
knowledge of the occurrence of any of the following: the institution or
threatened institution of any lawsuit or administrative proceeding affecting
the Borrower in which the claim exceeds $25,000,000.00 and if determined
adversely could have a Material Adverse Effect; when the Borrower believes that
there has been a Material Adverse Change; or the occurrence of any Event of
Default or any Default. The Borrower will notify the Agent in writing at least
thirty (30) Business Days prior to the date that the Borrower changes its name
or the location of its chief executive office or principal place of business or
the place where it keeps its books and records.




5.9 Use of Proceeds. The proceeds of the Loans will be used for general
business purposes, including (without limitation) for acquisition of
multifamily real estate

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properties, for the development and enhancement of multifamily real estate
properties, for the costs of construction of multifamily real estate projects
owned or to be acquired by the Borrower, for repurchase of the Borrowers
stock, or for other investments permitted by this Agreement. Notwithstanding
the foregoing, none of the proceeds of the Loans will be used to finance, fund
or complete any hostile acquisition of any Person.




5.10 Expenses of and Claims Against the Agent and the Lenders. To the
extent not prohibited by applicable law, the Borrower will pay all reasonable
costs and expenses incurred to third parties and reimburse the Agent and each
Lender, as the case may be, for any and all reasonable expenditures of every
character incurred or expended from time to time, in connection with (a)
regardless of whether a Default or Event of Default shall have occurred, the
Agents preparation, negotiation and completion of the Credit Documents, and
(b) during the continuance of an Event of Default, all costs and expenses
relating to the Agents and such Lenders exercising any of its rights and
remedies under this or any other Credit Document, including, without
limitation, attorneys fees, legal expenses, and court costs; provided, that no
rights or option granted by the Borrower to the Agent or any Lender or
otherwise arising pursuant to any provision of this or any other instrument
shall be deemed to impose or admit a duty on the Agent or any Lender to
supervise, monitor or control any aspect of the character or condition of any
property or any operations conducted in connection with it for the benefit of
the Borrower or any other person or entity other than the Agent or such Lender.
Notwithstanding the foregoing, the Borrower shall not be charged with any cost
or expense incurred by the Agent or any Lender relating to disputes or claims
among or between the Agent, the Lenders, or any of them unless during the
continuance of an Event of Default and related to details of enforcement of the
Lenders rights under the Credit Documents.




5.11 Legal Compliance; Indemnification.

(a) The Borrower shall operate its Property and businesses in full
compliance with all Legal Requirements. It shall not constitute an Event of
Default if there is a failure to comply with any Legal Requirement which
failure could not reasonably be expected to have a Material Adverse Effect.
The Borrower shall indemnify the Agent and each Lender, their directors,
officers, employees and shareholders (the Indemnified Parties) for and defend
and hold the Indemnified Parties harmless against any and all claims, demands,
liabilities, causes of action, penalties, obligations, damages, judgments,
deficiencies, losses, costs or expenses (including, without limitation,
interest, penalties, attorneys fees, and amounts paid in settlement)
threatened or incurred by reason of, arising out of or in any way related to
(i) any failure of the Borrower to so comply with the provisions of any Legal
Requirement, this Agreement or the other Credit Documents, or (ii) the Agent or
any Lenders making of the Loans, issuing or participating in any Letters of
Credit, or any other acts or omissions taken or made in connection with the
Loans or Letters of Credit (including any refusal by the Issuing Bank to honor
a demand for payment under a Letter of Credit if the documents presented in
connection with such demand do not strictly comply with the terms of the Letter
of Credit), and any and all matters arising out of any act, omission, event or
circumstance, regardless of whether the act, omission, event or circumstance
constituted a violation of any such Legal Requirement, this Agreement or the

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other Credit Documents at the time of its existence or occurrence. THE
BORROWER SHALL INDEMNIFY THE AGENT AND EACH LENDER PURSUANT TO THIS SECTION
REGARDLESS OF WHETHER THE ACT, OMISSION, FACTS, CIRCUMSTANCES OR CONDITIONS
GIVING RISE TO SUCH INDEMNIFICATION WERE CAUSED IN WHOLE OR IN PART BY THE
AGENTS OR SUCH LENDERS NEGLIGENCE (SIMPLE, BUT NOT GROSS NEGLIGENCE).

(b) The Parent will comply with all Legal Requirements to maintain, and
will at all times elect, qualify as and maintain, its status as a real estate
investment trust under Section 856(c)(1) of the Code.

(c) The Parent will (i) maintain at least one class of common shares of
the Parent having trading privileges on the New York Stock Exchange or the
American Stock Exchange, or which is listed on The NASDAQ Stock Markets
National Market; (ii) own, directly or indirectly, at least fifty-one percent
(51%) of (1) the shares of beneficial interest of the Borrower, and (2) the
Class A-2 Common Units of the Borrower and any other class of security issued
by the Borrower with the power to elect the Trustees of the Borrower; (iii)
maintain management and control of the Borrower; (iv) not sell, transfer or
convey any of the shares of beneficial interest of the Borrower owned by the
Parent, except (A) in payment of the purchase price of Property (including
mergers with and acquisitions of Persons) acquired by the Borrower, (B) upon
conversion or redemption of securities of the Borrower in accordance with their
terms or (C) upon any repurchase by the Borrower of the Borrowers securities
from the Parent in connection with a repurchase by the Parent of the Parents
securities; and (v) hold all of its assets and conduct all of its operations
through the Borrower, the QRS Entities in existence on October 31, 2001 and one
or more of the Borrowers Subsidiaries.




5.12 Borrowers Performance. If the Borrower should fail to comply with
any of the agreements, covenants or obligations of the Borrower under this
Agreement or any other Credit Document which requires the payment of money,
then the Agent (in the Borrowers name or in Agents name) may, if such payment
has not been made within ten (10) days after written request from Agent,
perform or cause to be performed such agreement, covenant or obligation, for
the account of the Borrower and at the Borrowers sole expense, but shall not
be obligated to do so. Any and all reasonable expenses thus incurred or paid
by the Agent and by any Lender shall be the Borrowers demand obligations to
the Agent or such Lender and shall bear interest from the date of demand
therefor until the date that the Borrower repays it to the Agent or the
applicable Lender at the Past Due Rate. Upon making any such payment or
incurring any such expense, the Agent or the applicable Lender shall be fully
subrogated to all of the rights of the Person receiving such payment. Any
amounts owing by the Borrower to the Agent or any Lender pursuant to this
provision or any other provision of this Agreement shall automatically and
without notice be secured by any collateral provided by the Credit Documents.
The amount and nature of any such expense and the time when paid shall, absent
manifest error, be fully established by the affidavit of the Agent or the
applicable Lender or any of the Agents or the applicable Lenders officers or
agents.

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5.13 Professional Services. Promptly upon the Agents request to satisfy
itself or the request of any Lender, the Borrower shall: (a) allow an
inspection and/or appraisal of the Borrowers Property to be made by a Person
approved by the Agent in its sole discretion; and (b) if the Agent believes
that an Event of Default has occurred or is about to occur, cause to be
conducted or prepared any other written report, summary, opinion, inspection,
review, survey, audit or other professional service relating to the Borrowers
Property or any operations in connection with it (all as designated in the
Agents request), including, without limitation, any accounting, auctioneering,
architectural, consulting, engineering, design, legal, management, pest
control, surveying, title abstracting or other technical, managerial or
professional service relating to such property or its operations. So long as
no Event of Default has occurred and is continuing, the foregoing shall not be
at the Borrowers expense.




5.14 Capital Adequacy.

(a) If after the date of this Agreement, the Agent or any Lender shall
have determined that the adoption or effectiveness of any applicable law, rule
or regulation regarding capital adequacy of general applicability, or any
change therein, or any change in the interpretation or administration thereof
by any Governmental Authority, central bank or comparable agency charged with
the interpretation or administration thereof, or compliance by the Agent or any
Lender with any request or directive regarding capital adequacy of general
applicability (whether or not having the force of law) of any such Governmental
Authority, central bank or comparable agency, has or would have the effect of
reducing the rate of return on the Agents or any Lenders capital as a
consequence of its obligations hereunder to a level below that which the Agent
or such Lender could have achieved but for such adoption, change or compliance
(taking into consideration the Agents or such Lenders policies with respect
to capital adequacy) by an amount deemed by the Agent or such Lender to be
material, then from time to time, the Borrower shall pay to the Agent or such
Lender such additional amount or amounts as will compensate the Agent or such
Lender for such reduction.

(b) A certificate of the Agent or such Lender setting forth such amount or
amounts as shall be necessary to compensate the Agent or such Lender as
specified in Section 5.14(a) hereof and making reference to the applicable law,
rule or regulation shall be delivered as soon as practicable to the Borrower
and shall be prima facie evidence thereof. The Borrower shall pay the Agent or
such Lender the amount shown as due on any such certificate within fourteen
(14) Business Days after the Agent or such Lender delivers such certificate.
In preparing such certificate, the Agent or such Lender may employ such
assumptions and allocations of costs and expenses as it shall in good faith
deem reasonable and may use any reasonable averaging and attribution method.




5.15 Property Pool.

(a) The Borrower (or a Subsidiary of the Borrower if the conditions in
clause (c) below are satisfied) will at all times own fee simple title to a
pool (the Pool) of Real Property that is not subject to any Lien other than
Permitted Encumbrances (the Pool Real Estate) and except as permitted by
Section 6.5 with an aggregate Pool Value of at

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least one hundred sixty-seven percent (167%) of the Borrowers
Indebtedness other than Secured Debt outstanding from time to time, with the
following characteristics:



| |                                                                                                                                                                                                                                                                                                                                 
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (i) the Borrower must provide the Agent with written confirmation
that it has received from third party independent environmental
consultants, written assessments for each Pool Real Estate in, or to be
added to, the Pool that do not disclose any material environmental
conditions or risks related to such properties, and



| |                                                                           
| | --------------------------------------------------------------------------
| | (ii) the Property is not subject to or affected by any Limiting
Agreement.

If requested by the Agent, the Borrower will provide to the Agent written
assessments from third party independent environmental consultants for all Pool
Real Estate acquired after the date of this Agreement. If Super-Majority
Lenders determine that there are material environmental conditions existing on
or risks to such properties, the properties will be excluded from the Pool.

(b) Notwithstanding the foregoing, (i) the maximum Pool Value that can be
attributable to the Value of land not improved for multifamily use (not
including land that is either under development or planned for commencement of
development within three (3) years after the date of acquisition) is five
percent (5%) of the Pool Value after adding the effect of said land, (ii) the
maximum Pool Value that can be attributable to the Value (in the aggregate) of
Real Property that is under construction or development, that has not reached
the Calculation Date, that has reached the Calculation Date but the Occupancy
Level is less than eighty percent (80%), unimproved land that is planned for
commencement of development within three (3) years after the date of
acquisition, and land not improved for multifamily use, is twenty percent (20%)
of the Pool Value after adding the effect of said Real Property and land; and
(iii) the maximum Pool Value that can be attributable to the Value of improved
property not used for multifamily residential use (property will be considered
as multifamily residential use even if it includes other non-primary uses which
are incidental to the residential use, such as retail or office) is ten percent
(10%) of the Pool Value after adding the effect of said property.

(c) If any Pool Real Estate is owned by a Subsidiary, then it may be
included in the Pool only if:



| |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (i) the owner of the Pool Real Estate is either (1) a wholly owned
Subsidiary of the Borrower or (2) if not a wholly owned Subsidiary, then
(x) the value of the Pool Real Estate owned by such Subsidiary (Partial
Subsidiary Real Estate) to be used in the calculation in clauses (a) and
(b) above shall be as provided in clauses (a) and (b) multiplied by the
cumulative percentage interest of the Subsidiary legally owned by the
Borrower, (y) the maximum Pool Value that can be attributable to Partial
Subsidiary Real Estate is seventeen and one-half percent (17-1/2%) of the
Pool Value after adding the effect of the Partial Subsidiary Real Estate,
and (z) the Borrower controls the right to sell, encumber or refinance
the Partial Subsidiary Real Estate;

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| |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (ii) the owner of the Pool Real Estate (1) either (x) executes a
Guaranty and delivers it to the Agent, together with such Subsidiarys
Organizational Documents and current certificates of existence and good
standing for the state in which it is organized and such Guaranty must
remain in full force and effect, or (y) if such Subsidiary is not wholly
owned by the Borrower, has no Indebtedness other than Non-recourse Debt,
and other than Indebtedness to the Borrower subordinated to the
Indebtedness incurred under this Agreement on terms satisfactory to the
Agent; and (2) would not at any time be in default of Sections 7.1(g),
(h), (i), (j), or (k), if said subsections were applicable to said owner;
and



| |                                                                                                               
| | --------------------------------------------------------------------------------------------------------------
| | (iii) the indicia of ownership of the Subsidiary is not subject to a
Lien (other than Permitted Encumbrances).




5.16 DC Holdings. The Borrower shall maintain at least 99.5% aggregate
ownership of the indicia of ownership of each DC Holdings Entity, and shall
maintain management and control of each DC Holdings Entity.




6. Negative Covenants.

The Borrower covenants and agrees with the Agent and the Lenders that
prior to the termination of this Agreement it will not do any of the following:




6.1 Mergers, Consolidations and Acquisitions of Assets. In any single
transaction or series of related transactions, directly or indirectly: (a)
liquidate or dissolve; (b) be a party to any merger or consolidation other
than a merger or consolidation in which (i) the Borrower is the surviving
entity after such merger or consolidation, or (ii) the individuals constituting
the Borrowers Board of Trustees immediately prior to such merger or
consolidation represent a majority of the surviving entitys Board of Directors
or Board of Trustees after such merger or consolidation; or (c) sell, convey or
lease all or substantially all of its assets.




6.2 Redemption. At any time redeem, retire or otherwise acquire, directly
or indirectly, any shares of its capital stock if such action would cause the
Borrower to not be in compliance with this Agreement.




6.3 Nature of Business. Change the nature of its business or enter into
any business which is substantially different from the business in which it is
presently engaged. Borrowers primary business will be the ownership,
operation and development of multi-family residential properties, and may
include other business initiatives, investments and activities which are
related, but incidental, to Borrowers primary business, subject only to the
limitations on specific loans and investments described below (Specified
Permitted Holdings); provided, however, that the aggregate value of the
Specified Permitted Holdings shall not at any time exceed thirty percent (30%)
of the Total Asset Value after giving effect to the Specified Permitted
Holdings.

Specified Permitted Holdings means the following:

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(a) securities received in settlement of liabilities created in the
ordinary course of business, so long as the market value of such securities
does not exceed five percent (5%) of the Total Asset Value after giving effect
to such investment;

(b) investments in Unconsolidated Affiliates that are engaged primarily in
Borrowers primary business as described in this section, so long as the
aggregate amount of such investments does not exceed twenty percent (20%) of
the Total Asset Value after giving effect to such investments;

(c) loans, advances, and extensions of credit to Persons (who are not
Affiliates of the Borrower), so long as the aggregate unpaid amount of such
loans does not exceed ten percent (10%) of the Total Asset Value after giving
effect to such loans;

(d) investments in Persons not included in any other Specified Permitted
Holdings so long as the aggregate value of all such investments (valued at the
lower of cost or then market value) does not exceed ten percent (10%) of the
Total Asset Value after giving effect to such investments;

(e) investments in income producing Real Property that is not primarily
multifamily residential property (property will be considered as primarily
multifamily residential property even if it includes other non-primary uses
which are incidental to the residential use, such as retail or office), so long
as the aggregate Historical Value of such investments does not exceed ten
percent (10%) of the Total Asset Value after giving effect to such investments;

(f) investments in land not improved for multifamily use (not including
land that is either under development or planned for commencement of
development within three (3) years after the date of acquisition), so long as
the aggregate Historical Value of such investments does not exceed seven and
one-half percent (7-1/2%) of the Total Asset Value after giving effect to such
investments; and

(g) investments of any kind not included in any other Specified Permitted
Holdings and which are not incidental to Borrowers primary business as
described in this Section, so long as the aggregate value of such investments
(valued at the lower of cost or then market value) does not exceed five percent
(5%) of the Total Asset Value after giving effect to such investments.




6.4 Transactions with Related Parties. Enter into any transaction or
agreement with any officer, director, or holder of more than five percent (5%)
(based on voting rights) of the issued and outstanding capital stock of the
Borrower (or any Affiliate of the Borrower), unless the same is upon terms
substantially similar to those obtainable from qualified wholly unrelated
sources, and is approved by the majority of the Borrowers non-interested
directors.




6.5 Limiting Agreements. Neither Borrower nor any of its Subsidiaries has
entered into, and after the date hereof, neither Borrower nor any of its
Subsidiaries shall enter into, any Limiting Agreements; provided that so long
as the Borrower has received

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an S&P Rating and a Moodys Rating that are BBB/Baa2 or better
(respectively), up to five percent (5%) of the Pool Value (after adding the
effect of said property) may be subject to debt-related agreements (but not the
related mortgages or pledges) that require the owner of the project to mortgage
and pledge the project to secure the debt if the Borrowers S&P Rating and
Moodys Rating are below BBB-/Baa3 (respectively).




6.6 Parent Negative Covenants. The Parent will not (a) have any
Subsidiary that is a qualified REIT subsidiary under Section 856 of the Code
other than the QRS Entities; (b) own any Property other than the ownership
interests of the Borrower, and the Parents ownership interests as of October
31, 2001 in the QRS Entities; (c) give or allow any Lien on any of its Property
including the ownership interests of the Borrower; and (d) create, incur,
suffer or permit to exist, or assume or guarantee, directly or indirectly,
contingently or otherwise, or become or remain liable with respect to (i) any
Indebtedness if the aggregate of such Indebtedness and the Indebtedness of the
Borrower would violate Sections 5.3(a), (b), (c) or (e) if such aggregate
Indebtedness is treated as the Borrowers Indebtedness, and (ii) any
Indebtedness of a Person other than the Parent.




7. Events of Default and Remedies.




7.1 Events of Default. If any of the following events shall occur, then,
as to the events described in Sections 7.1(b), (c), and (d), if the event has
not been waived, cured or remedied within twenty (20) days after the Agent
gives the Borrower notice of such event, at any time thereafter, and as to all
of the other events described herein, at any time, the Agent may do any or all
of the following: (1) without notice to the Borrower, declare the Notes to be,
and thereupon the Notes shall forthwith become, immediately due and payable,
together with all accrued interest thereon, without notice of any kind, notice
of acceleration or of intention to accelerate, presentment and demand or
protest, all of which are hereby expressly waived; (2) without notice to the
Borrower, terminate the Commitment; (3) exercise, as may any other Lender, its
rights of offset against each account and all other Property of the Borrower in
the possession of the Agent or any such Lender, which right is hereby granted
by the Borrower to the Agent and each Lender; and (4) exercise any and all
other rights pursuant to the Credit Documents:

(a) The Borrower shall fail to pay or prepay any principal of or interest
on the Notes, any reimbursement obligation in respect of an LC Disbursement, or
any fee or any other obligation hereunder within five (5) days after it was
due; or

(b) The Borrower or any Guarantor shall (i) fail to pay when due (whether
on the scheduled maturity date or otherwise), or within any applicable period
of grace, any principal of or interest on (1) any other Indebtedness, other
than Non-recourse Debt or Disqualified Stock, in excess of $35,000,000.00 in
principal amount, or (2) Non-recourse Debt in excess of $50,000,000.00 in
principal amount; or (ii) fail to comply with Section 1004 of the Indenture
dated February 1, 1994 between the Borrower and Morgan Guaranty Trust Company
of New York, as Trustee, as said Section 1004 may be amended with the consent
of the Majority Lenders; or

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(c) Any written representation or warranty made in any Credit Document by
or on behalf of the Borrower, when taken as a whole shall prove to have been
incorrect, false or misleading in any material respect; or

(d) Default shall occur in the punctual and complete performance of any
covenant of the Borrower or any other Person other than the Agent or the
Lenders contained in any Credit Document not specifically set forth in this
Section; or

(e) A final judgment or judgments in the aggregate for the payment of
money in excess of $35,000,000.00 shall be rendered against the Borrower or any
Guarantor and the same shall remain undischarged for a period of thirty (30)
days during which execution shall not be effectively stayed; or

(f) The Borrower shall not be in compliance with any provision of Section
6.3 during the period covered by an Officers Certificate and such
non-compliance remains in existence on the date the next Officers Certificate
is required to be presented to the Agent under Section 5.2(c) of this
Agreement; provided, however, that such right to defer compliance shall be
available to the Borrower for each such provision no more than once every
twelve (12) months; or

(g) Any order shall be entered in any proceeding against the Borrower or
any Guarantor decreeing the dissolution, liquidation or split-up thereof, and
such order shall remain in effect for more than thirty (30) days; or

(h) The Borrower or any Guarantor shall make a general assignment for the
benefit of creditors or shall petition or apply to any tribunal for the
appointment of a trustee, custodian, receiver or liquidator of all or any
substantial part of its business, estate or assets or shall commence any
proceeding under any bankruptcy, reorganization, arrangement, insolvency,
readjustment of debt, dissolution or liquidation law of any jurisdiction,
whether now or hereafter in effect; or

(i) Any such petition or application shall be filed or any such proceeding
shall be commenced against the Borrower or any Guarantor and the Borrower or
such Guarantor by any act or omission shall indicate approval thereof, consent
thereto or acquiescence therein, or an order shall be entered appointing a
trustee, custodian, receiver or liquidator of all or any substantial part of
the assets of such Person or granting relief to such Person or approving the
petition in any such proceeding, and such order shall remain in effect for more
than ninety (90) days; or

(j) The Borrower or any Guarantor shall fail generally to pay its debts as
they become due or suffer any writ of attachment or execution or any similar
process to be issued or levied against it or any substantial part of its
Property which is not released, stayed, bonded or vacated within thirty (30)
days after its issue or levy; or

(k) The Borrower or any Guarantor shall have concealed, removed, or
permitted to be concealed or removed, any part of its Property, with intent to
hinder, delay or defraud its creditors or any of them, or made or suffered a
transfer of any of its Property

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which may be fraudulent under any bankruptcy, fraudulent conveyance or
similar law; or shall have made any transfer of its Property to or for the
benefit of a creditor at a time when other creditors similarly situated have
not been paid.




7.2 Remedies Cumulative. No remedy, right or power conferred upon the
Agent or the Lenders is intended to be exclusive of any other remedy, right or
power given hereunder or now or hereafter existing at law, in equity, or
otherwise, and all such remedies, rights and powers shall be cumulative.




7.3 Guaranty Proceeds.

(a) Notwithstanding any other provision of any Credit Document to the
contrary, any funds, claims, or distributions actually received by Agent for
the account of any Lender as a result of the enforcement of, or pursuant to,
any Guaranty, net of Agents and Lenders expenses of collection thereof (such
net amount, Guaranty Proceeds), shall be made available for distribution
equally and ratably (in proportion to the aggregate amount of principal,
interest and other amounts then owed in respect of the Obligations or of an
issuance of Public Debt (as defined below), as the case may be) among the
Agent, the Lenders and the trustee or trustees of any Indebtedness not
subordinated to the Obligations (or to the holders thereof), issued by
Borrower, before or after the date of this Agreement, in offerings registered
under the Securities Act of 1933, as amended, or in transactions exempt from
registration pursuant to rule 144A thereof (Public Debt). Agent is hereby
authorized by Borrower, by each Lender and by each Guarantor (by its execution
and delivery of the Guaranty to which it is party) to make such Guaranty
Proceeds so available. No Lender shall have any interest in any amount paid
over by Agent to the trustee or trustees in respect of any Public Debt (or to
the holders thereof) pursuant to the foregoing authorization. This Section
7.3(a) shall apply (i) solely to Guaranty Proceeds and not to any payments,
funds, claims or distributions received by Agent or Lenders directly or
indirectly from Borrower or any other Person other than from a Guarantor
pursuant to a Guaranty, and (ii) as to Public Debt issued after December 20,
2000, only if the documents governing the Public Debt provide for the same
sharing with the Lenders of guaranty proceeds recovered to pay the Public Debt.
Borrower is aware of the terms of the Guaranty, and specifically understands
and agrees with Agent and the Lenders that, to the extent Guaranty Proceeds are
distributed to holders of Public Debt or their respective trustees, such
Guarantor has agreed that the Obligations will not be deemed reduced by any
such distributions, and each Guarantor shall continue to make payments pursuant
to its Guaranty until such times as the Obligations have been paid in full (and
the Commitment has been terminated and any LC Exposure reduced to zero), after
taking into account any such distributions of Guaranty Proceeds in respect of
Indebtedness other than the Obligations.

(b) Nothing contained herein shall be deemed (i) to limit, modify, or
alter the rights of Agent and Lenders under any Guaranty, (ii) to subordinate
the Obligations to any Public Debt, or (iii) to give any holder of Public Debt
(or any trustee for such holder) any rights of subrogation.

(c) This Agreement and each Guaranty are for the sole benefit of Agent and
the Lenders and their respective successors and assigns. Nothing contained
herein or in

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any Guaranty shall be deemed for the benefit of any holder of Public Debt,
or any trustee for such holder; nor shall anything contained herein or therein
be construed to impose on Agent or Lenders any fiduciary duties, obligations or
responsibilities to the holder of any Public Debt or their trustees (including,
but not limited to, any duty to pursue any Guarantor for payment under its
Guaranty).




8. The Agent.




8.1 Appointment, Powers and Immunities.

(a) Each Lender hereby irrevocably appoints and authorizes the Agent to
act as its agent hereunder and under the other Credit Documents with such
powers as are specifically delegated to the Agent by the terms hereof and
thereof, together with such other powers as are reasonably incidental thereto.
The Agent (i) shall not have any duties or responsibilities except those
expressly set forth in this Agreement and the other Credit Documents, and shall
not by reason of this Agreement or any other Credit Document be a trustee for
any Lender; (ii) shall not be responsible to any Lender for any recitals,
statements, representations or warranties contained in this Agreement or any
other Credit Document, or in any certificate or other document referred to or
provided for in, or received by any of them under, this Agreement or any other
Credit Document, or for the value, validity, effectiveness, genuineness,
enforceability, execution, filing, registration, collectibility, recording,
perfection, existence or sufficiency of this Agreement or any other Credit
Document or any other document referred to or provided for herein or therein or
any property covered thereby or for any failure by any Party or any other
Person to perform any of its obligations hereunder or thereunder, and shall not
have any duty to inquire into or pass upon any of the foregoing matters; (iii)
shall not be required to initiate or conduct any litigation or collection
proceedings hereunder or any other Credit Document except to the extent
requested by the Majority Lenders; (iv) SHALL NOT BE RESPONSIBLE FOR ANY
MISTAKE OF LAW OR FACT OR ANY ACTION TAKEN OR OMITTED TO BE TAKEN BY IT
HEREUNDER OR UNDER ANY OTHER CREDIT DOCUMENT OR ANY OTHER DOCUMENT OR
INSTRUMENT REFERRED TO OR PROVIDED FOR HEREIN OR THEREIN OR IN CONNECTION
HEREWITH OR THEREWITH, INCLUDING, WITHOUT LIMITATION, PURSUANT TO ITS OWN
NEGLIGENCE, BUT NOT INCLUDING AND EXCEPT FOR THE GROSS NEGLIGENCE OR WILLFUL
MISCONDUCT OF THE AGENT; (v) shall not be bound by or obliged to recognize any
agreement among or between the Borrower, the Agent, and any Lender other than
this Agreement and the other Credit Documents, regardless of whether the Agent
has knowledge of the existence of any such agreement or the terms and
provisions thereof; (vi) shall not be charged with notice or knowledge of any
fact or information not herein set out or provided to the Agent in accordance
with the terms of this Agreement or any other Credit Document; (vii) shall not
be responsible for any delay, error, omission or default of any mail,
telegraph, cable or wireless agency or operator, and (viii) shall not be
responsible for the acts or edicts of any Governmental Authority. The Agent
may employ agents and attorneys-in-fact and shall not be responsible for the
negligence or misconduct of any such agents or attorneys-in-fact selected by it
with reasonable care.

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(b) Without the prior written consent of Agent and all of the Lenders,
Agent shall not (i) modify or amend in any respect whatsoever the interest rate
provisions of the Credit Documents, (ii) increase the Commitment above
$600,000,000.00 (provided that an increase requested in accordance with
Section 2.1(d) must only be approved by the Lenders that are increasing their
Commitments), (iii) extend the Maturity Date other than in accordance with the
express provisions of the Credit Documents, (iv) extend or reduce the due date
for, or change the amount of, the scheduled payments of principal or interest
on the Loans, the LC Disbursements or the fees set forth in Section 2.7, (v)
amend the definitions of Majority Lenders or Super-Majority Lenders or any
requirement that certain actions be taken only with the consent of a certain
number of the Lenders, (vi) amend or waive any provisions of Section 5.15 of
this Agreement or (vii) release any Subsidiary from a Guaranty required under
and delivered pursuant to Section 5.15, unless the Guaranty is no longer
required pursuant to Section 5.15. From time to time upon Agents request,
each Lender shall execute and deliver such documents and instruments as may be
reasonably necessary to enable Agent to effectively administer and service the
Loan in its capacity as lead lender and servicer and in the manner contemplated
by the provisions of this Agreement.

(c) Without the prior written consent of the Super-Majority Lenders, Agent
shall not modify, amend or waive in any respect whatsoever the provisions of
(i) Section 5.3 or the definitions of the financial covenants (or any component
thereof) described in Section 5.3 (any modification, amendment or waiver of the
provisions of, or definitions relating to, Section 5.3(e) must also be approved
by the Agent, the Syndication Agents and the Documentation Agents), (ii)
Section 5.11(c)(i), or (iii) Section 6.1.

(d) All information provided to the Agent under or pursuant to the Credit
Documents, and all rights of the Agent to receive or request information, or to
inspect information or Property, shall be by the Agent on behalf of the
Lenders. If any Lender requests that it be able to receive or request such
information, or make such inspections, in its own right rather than through the
Agent, the Borrower will cooperate with the Agent and such Lender in order to
obtain such information or make such inspection as such Lender may reasonably
require.

(e) The Borrower shall be entitled to rely upon a written notice or a
written response from the Agent as being pursuant to concurrence or consent of
the Majority Lenders or the Super-Majority Lenders unless otherwise expressly
stated in the Agents notice or response.




8.2 Reliance. The Agent shall be entitled to rely upon any certification,
notice or other communication (including any thereof by telephone, telex,
facsimile, telegram or cable) believed by it to be genuine and correct and to
have been signed or sent by or on behalf of the proper Person or Persons, and
upon advice and statements of legal counsel (which may be counsel for the
Borrower), independent accountants and other experts selected by the Agent.
The Agent shall not be required in any way to determine the identity or
authority of any Person delivering or executing the same. As to any matters
not expressly provided for by this Agreement or any other Credit Document, the
Agent shall in

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all cases be fully protected in acting, or in refraining from acting,
hereunder and thereunder in accordance with instructions of the Majority
Lenders, and any action taken or failure to act pursuant thereto shall be
binding on all of the Lenders. If any order, writ, judgment or decree shall be
made or entered by any court affecting the rights, duties and obligations of
the Agent under this Agreement or any other Credit Document, then and in any of
such events the Agent is authorized, in its sole discretion, to rely upon and
comply with such order, writ, judgment or decree which it is advised by legal
counsel of its own choosing is binding upon it under the terms of this
Agreement, the relevant Credit Document or otherwise; and if the Agent complies
with any such order, writ, judgment or decree, then it shall not be liable to
any Lender or to any other Person by reason of such compliance even though such
order, writ, judgment or decree may be subsequently reversed, modified,
annulled, set aside or vacated.




8.3 Defaults. The Agent shall not be deemed to have constructive
knowledge of the occurrence of a Default (other than the non-payment of
principal of or interest on Loans) unless it has received notice from a Lender
or the Borrower specifying such Default and stating that such notice is a
Notice of Default. In the event that the Agent receives such a notice of the
occurrence of a Default, or whenever the Agent has actual knowledge of the
occurrence of a Default, the Agent shall give prompt written notice thereof to
the Lenders (and shall give each Lender prompt notice of each such
non-payment). The Agent shall (subject to Section 8.7 hereof) take such action
with respect to such Default as shall be directed by the Majority Lenders and
within its rights under the Credit Documents and at law or in equity, provided
that, unless and until the Agent shall have received such directions, the Agent
may (but shall not be obligated to) take such action, or refrain from taking
such action, permitted hereby with respect to such Default as it shall deem
advisable in the best interests of the Lenders and within its rights under the
Credit Documents in order to preserve, protect or enhance the collectibility of
the Loans, at law or in equity.




8.4 Rights as a Lender. With respect to the Commitment and the Loans
made, Agent, in its capacity as a Lender hereunder shall have the same rights
and powers hereunder as any other Lender and may exercise the same as though it
were not acting in its agency capacity, and the term Lender or Lenders
shall, unless the context otherwise indicates, include the Agent in its
individual capacity. The Agent may (without having to account therefor to any
other Lender) as a Lender, and to the same extent as any other Lender, accept
deposits from, lend money to and generally engage in any kind of banking,
trust, letter of credit, agency or other business with the Borrower (and any of
its Affiliates) as if it were not acting as the Agent but solely as a Lender.
The Agent may accept fees and other consideration from the Borrower (in
addition to the fees heretofore agreed to between the Borrower and the Agent)
for services in connection with this Agreement or otherwise without having to
account for the same to the Lenders.




8.5 Indemnification. The Lenders agree to indemnify the Agent, its
officers, directors, agents and Affiliates, ratably in accordance with each
Lenders respective Percentage, for any and all liabilities, obligations,
losses, damages, penalties, actions, judgments, suits, costs, expenses or
disbursements of any kind and nature whatsoever (INCLUDING BUT NOT LIMITED TO,
THE CONSEQUENCES OF THE

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NEGLIGENCE OF THE AGENT) which may be imposed on, incurred by or asserted
against the Agent in any way relating to or arising out of this Agreement or
any other Credit Document or any other documents contemplated by or referred to
herein or therein, or the transactions contemplated hereby or thereby
(including, without limitation, interest, penalties, reasonable attorneys fees
and amounts paid in settlement in accordance with the terms of this Section 8,
but excluding, unless a Default has occurred and is continuing, normal
administrative costs and expenses incident to the performance of its agency
duties hereunder) or the enforcement of any of the terms hereof or thereof or
of any such other documents, INCLUDING BUT NOT LIMITED TO THE NEGLIGENCE OF THE
AGENT, provided that no Lender shall be liable for any of the foregoing to the
extent they arise from the gross negligence or willful misconduct of the party
to be indemnified, or from the Agents default in the express obligations of
the Agent to the Lenders provided for in this Agreement. The obligations of
the Lenders under this Section 8.5 shall survive the termination of this
Agreement and the repayment of the Obligations.




8.6 Non-Reliance on Agent and Other Lenders. Each Lender agrees that it
has received current financial information with respect to the Borrower and
that it has, independently and without reliance on the Agent or any other
Lender and based on such documents and information as it has deemed
appropriate, made its own credit analysis of the Borrower and decision to enter
into this Agreement and that it will, independently and without reliance upon
the Agent or any other Lender, and based on such documents and information as
it shall deem appropriate at the time, continue to make its own analysis and
decisions in taking or not taking action under this Agreement or any of the
other Credit Documents. The Agent shall not be required to keep itself
informed as to the performance or observance by any Party of this Agreement or
any of the other Credit Documents or any other document referred to or provided
for herein or therein or to inspect the properties or books of the Borrower or
any Party except as specifically required by the Credit Documents. Except for
notices, reports and other documents and information expressly required to be
furnished to the Lenders by the Agent hereunder or the other Credit Documents,
the Agent shall not have any duty or responsibility to provide any Lender with
any credit or other information concerning the affairs, financial condition or
business of the Borrower or any other Party (or any of their affiliates) which
may come into the possession of the Agent. Each Lender assumes all risk of
loss in connection with its Percentage in the Loans to the full extent of its
Percentage therein. The Agent assumes all risk of loss in connection with its
Percentage in the Loans to the full extent of its Percentage therein.




8.7 Failure to Act. Except for action expressly required of the Agent, as
the case may be, hereunder, or under the other Credit Documents, the Agent
shall in all cases be fully justified in failing or refusing to act hereunder
and thereunder unless it shall receive further assurances to its satisfaction
by the Lenders of their indemnification obligations under Section 8.5 hereof
against any and all liability and expense which may be incurred by it by reason
of taking or continuing to take any such action.




8.8 Resignation of Agent. Subject to the appointment and acceptance of a
successor Agent as provided below, the Agent may resign at any time by giving
notice thereof to the Lenders and the Borrower. The Agent shall resign if it
has assigned all of its

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Lender Commitment and Loans and is not an Issuing Bank. Upon any such
resignation, (i) the Majority Lenders with the consent of the Borrower, so long
as no Default is in existence, shall have the right to appoint a successor
Agent so long as such successor Agent is also a Lender at the time of such
appointment and (ii) the Majority Lenders shall have the right to appoint a
successor Agent that is not a Lender at the time of such appointment so long as
the Borrower consents to such appointment (which consent shall not be
unreasonably withheld). If no successor Agent shall have been so appointed by
the Majority Lenders and accepted such appointment within 30 days after the
retiring Agents giving of notice of resignation, then the retiring Agent may,
on behalf of the Lenders, and with the consent of the Borrower which shall not
be unreasonably withheld, appoint a successor Agent. Any successor Agent shall
be a bank which has an office in the United States and a combined capital and
surplus of at least $500,000,000.00. Upon the acceptance of any appointment as
Agent hereunder by a successor Agent, such successor Agent shall thereupon
succeed to and become vested with all the rights, powers, privileges and duties
of the retiring Agent, and the retiring Agent shall be discharged from its
duties and obligations as Agent thereafter arising hereunder and under any
other Credit Documents, but shall not be discharged from any liabilities for
its actions as Agent prior to the date of discharge. Such successor Agent
shall promptly specify by notice to the Borrower its principal office referred
to in Section 2.1 and Section 2.3 hereof. After any retiring Agents
resignation hereunder as Agent, the provisions of this Section 8 shall continue
in effect for its benefit in respect of any actions taken or omitted to be
taken by it while it was acting as the Agent.




8.9 No Partnership. Neither the execution and delivery of this Agreement
nor any of the other Credit Documents nor any interest the Lenders, the Agent
or any of them may now or hereafter have in all or any part of the Obligations
shall create or be construed as creating a partnership, joint venture or other
joint enterprise between the Lenders or among the Lenders and the Agent. The
relationship between the Lenders, on the one hand, and the Agent, on the other,
is and shall be that of principals and agent only, and nothing in this
Agreement or any of the other Credit Documents shall be construed to constitute
the Agent as trustee or other fiduciary for any Lender or to impose on the
Agent any duty, responsibility or obligation other than those expressly
provided for herein and therein.




9. Renewal and Extension.




9.1 Procedure for Renewal and Extension. The Borrower may extend the
Maturity Date one (1) time by one (1) year by executing and delivering to the
Agent a written request for extension (the Extension Request) at least thirty
(30) days (but not more than ninety (90) days) prior to the Maturity Date.




9.2 Conditions to Renewal and Extension. The extension of the Maturity
Date under Section 9.1 of this Agreement shall be conditioned upon, among other
things, the following terms and conditions (which shall be in addition to those
required by Sections 2.7, 3 and 9.1 of this Agreement):

(a) Execution by the Borrower of a renewal and extension agreement for
each Note in Proper Form.

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(b) No Default must be in existence on the date of the Extension Request
or on the Maturity Date (before extension).

(c) Payment of the extension fee as set forth in Section 2.7(b).

(d) Such other documents, instruments and items as Agent or any Lender
shall reasonably require to document extension.




10. Miscellaneous.




10.1 No Waiver, Amendments. No waiver of any Default shall be deemed to
be a waiver of any other Default. No failure to exercise or delay in
exercising any right or power under any Credit Document shall operate as a
waiver thereof, nor shall any single or partial exercise of any such right or
power preclude any further or other exercise thereof or the exercise of any
other right or power. Except as may be prohibited by Section 8.1 hereof, no
amendment, modification or waiver of any Credit Document shall be effective
unless the same is in writing and signed by the Borrower and the Majority
Lenders. No notice to or demand on the Borrower or any other Person shall
entitle the Borrower or any other Person to any other or further notice or
demand in similar or other circumstances.




10.2 Notices. All notices under the Credit Documents shall be in writing
and either (i) delivered against receipt therefor, or (ii) mailed by registered
or certified mail, return receipt requested, in each case addressed as set
forth herein, or to such other address as a party may designate. Notices shall
be deemed to have been given (whether actually received or not) when delivered
(or, if mailed, on the next Business Day). Provided, however, that as between
the Agent and the Lenders and among the Lenders, notice may be given by
telecopy or facsimile effective upon the earlier of actual receipt or
confirmation of receipt by telephone.




10.3 Venue. HARRIS COUNTY, TEXAS SHALL BE A PROPER PLACE OF VENUE TO
ENFORCE PAYMENT OR PERFORMANCE OF THIS AGREEMENT AND THE OTHER CREDIT
DOCUMENTS, UNLESS THE AGENT SHALL GIVE ITS PRIOR WRITTEN CONSENT TO A DIFFERENT
VENUE. THE BORROWER HEREBY IRREVOCABLY SUBMITS TO THE NONEXCLUSIVE
JURISDICTION OF THE STATE AND FEDERAL COURTS IN THE STATE OF TEXAS AND AGREES
AND CONSENTS THAT SERVICE OF PROCESS MAY BE MADE UPON IT IN ANY PROCEEDING
ARISING OUT OF ANY OF THE CREDIT DOCUMENTS BY SERVICE OF PROCESS AS PROVIDED BY
TEXAS LAW. THE BORROWER HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT
PERMITTED BY LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE
LAYING OF VENUE OF ANY SUIT, ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO
ANY OF THE CREDIT DOCUMENTS IN THE DISTRICT COURTS OF HARRIS COUNTY, TEXAS, OR
IN THE UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF TEXAS, HOUSTON
DIVISION, AND HEREBY FURTHER IRREVOCABLY WAIVES ANY CLAIMS THAT ANY SUCH SUIT,
ACTION OR PROCEEDING BROUGHT IN ANY SUCH

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COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM. THE BORROWER (A) AGREES
TO DESIGNATE AND MAINTAIN AN AGENT FOR SERVICE OF PROCESS IN THE STATE OF TEXAS
IN CONNECTION WITH ANY SUCH SUIT, ACTION OR PROCEEDING AND TO DELIVER TO THE
AGENT EVIDENCE THEREOF AND (B) IRREVOCABLY CONSENTS TO THE SERVICE OF PROCESS
OUT OF ANY OF THE AFOREMENTIONED COURTS IN ANY SUCH SUIT, ACTION OR PROCEEDING
BY NOTICE GIVEN AS PROVIDED FOR IN THIS AGREEMENT. NOTHING HEREIN SHALL AFFECT
THE RIGHT OF THE AGENT OR THE LENDERS TO COMMENCE LEGAL PROCEEDINGS OR
OTHERWISE PROCEED AGAINST THE BORROWER IN ANY JURISDICTION OR TO SERVE PROCESS
IN ANY MANNER PERMITTED BY APPLICABLE LAW. THE BORROWER HEREBY IRREVOCABLY
AGREES THAT ANY LEGAL ACTION OR PROCEEDING AGAINST THE AGENT OR ANY LENDER
ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT OR THE OTHER CREDIT
DOCUMENTS SHALL BE BROUGHT AND MAINTAINED IN THE DISTRICT COURTS OF HARRIS
COUNTY, TEXAS, OR THE UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF
TEXAS, HOUSTON DIVISION.




10.4 Choice of Law. THIS AGREEMENT, THE NOTES AND THE OTHER CREDIT
DOCUMENTS HAVE BEEN NEGOTIATED, EXECUTED AND DELIVERED IN THE STATE OF TEXAS
AND SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE
LAWS OF THE STATE OF TEXAS, INCLUDING ALL APPLICABLE FEDERAL LAW, FROM TIME TO
TIME IN FORCE IN THE STATE OF TEXAS.




10.5 Survival; Parties Bound; Successors and Assigns.

(a) All representations, warranties, covenants and agreements made by or
on behalf of the Borrower in connection herewith shall survive the execution
and delivery of the Credit Documents, shall not be affected by any
investigation made by any Person, and shall bind the Borrower and its
successors, trustees, receivers and assigns and inure to the benefit of the
successors and assigns of the Agent and the Lenders (including any Affiliate of
the Issuing Bank that issues any Letter of Credit); provided, however, that (i)
the Borrower may not assign or transfer any of its rights or obligations
hereunder without the prior written consent of the Agent and all of the
Lenders, and any such assignment or transfer without such consent shall be null
and void, and (ii) no Lender may assign or otherwise transfer its rights or
obligations hereunder except in accordance with this Section. Nothing in this
Agreement, expressed or implied, shall be construed to confer upon any Person
(other than the parties hereto, their respective successors and assigns
permitted hereby, participants (to the extent provided in paragraph (c) of this
Section) and, to the extent expressly contemplated hereby, the Affiliates of
each of the Agent and the Lenders) any legal or equitable right, remedy or
claim under or by reason of this Agreement.

(b) (i) Subject to the conditions set forth in paragraph (b)(ii) below,
any Lender may assign to one or more assignees all or a portion of its rights
and obligations

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under this Agreement (including all or a portion of its Lender Commitment
and the Loans at the time owing to it) with the prior written consent (such
consent not to be unreasonably withheld) of:



| |                                                                                                                              
| | -----------------------------------------------------------------------------------------------------------------------------
| | (A) the Borrower, provided that no consent of the Borrower shall be
required if a Default has occurred and is continuing; and



| |               
| | --------------
| | (B) the Agent.

(ii) Assignments shall be subject to the following additional conditions:



| |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (A) except in the case of an assignment of the entire remaining
amount of the assigning Lenders Lender Commitment or Loans, the amount
of the Lender Commitment or Loans of the assigning Lender subject to each
such assignment (determined as of the date the Assignment and Assumption
with respect to such assignment is delivered to the Agent) shall not be
less than $10,000,000 unless each of the Borrower and the Agent otherwise
consent, provided that no such consent of the Borrower shall be required
if a Default has occurred and is continuing;



| |                                                                                                                                                              
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (B) each partial assignment shall be made as an assignment of a
proportionate part of all the assigning Lenders rights and obligations
under this Agreement;



| |                                                                                                                                                                                                   
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | (C) the parties to each assignment shall execute and deliver to the
Agent an Assignment and Assumption, together with a processing and
recordation fee paid by the assigning Lender of $2,500; and



| |                                                                                                           
| | ----------------------------------------------------------------------------------------------------------
| | (D) the assignee, if it shall not be a Lender, shall deliver to the
Agent an Administrative Questionnaire.

For the purposes of this Section 10.5, the term Approved Fund has the
following meaning:

Approved Fund means any Person (other than a natural person) that is
engaged in making, purchasing, holding or investing in bank loans and similar
extensions of credit in the ordinary course of its business and that is
administered or managed by (a) a Lender, (b) an Affiliate of a Lender or (c) an
entity or an Affiliate of an entity that administers or manages a Lender.

(iii) Subject to acceptance and recording thereof pursuant to paragraph
(b)(iv) of this Section, from and after the effective date specified in each
Assignment and Assumption the assignee thereunder shall be a party hereto and,
to the extent of the interest assigned by such Assignment and Assumption, have
the rights and obligations of a Lender under this Agreement, and the assigning
Lender thereunder shall, to the extent of the interest assigned by such
Assignment and Assumption, be released from its obligations under this
Agreement (and, in the case of an Assignment and

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Assumption covering all of the assigning Lenders rights and obligations under this Agreement, such Lender
shall cease to be a party hereto but shall continue to be entitled to the
benefits of Sections 3.5, 5.10, 5.11 and 10.7). Any assignment or transfer by
a Lender of rights or obligations under this Agreement that does not comply
with this Section shall be treated for purposes of this Agreement as a sale by
such Lender of a participation in such rights and obligations in accordance
with paragraph (c) of this Section.

(iv) The Agent, acting for this purpose as an agent of the Borrower, shall
maintain at one of its offices, a copy of each Assignment and Assumption
delivered to it and a register for the recordation of the names and addresses
of the Lenders, and the Lender Commitment of, and principal amount of the Loans
owing to each Lender pursuant to the terms hereof from time to time (the
Register). The entries in the Register shall be conclusive, and Borrower,
Agent, and the Lenders may treat each Person whose name is recorded in the
Register pursuant to the terms hereof as a Lender hereunder for all purposes of
this Agreement, notwithstanding notice to the contrary. The Register shall be
available for inspection by Borrower and any Lender, at any reasonable time and
from time to time upon reasonable prior notice.

(v) Upon its receipt of a duly completed Assignment and Assumption
executed by an assigning Lender and an assignee, the assignees completed
Administrative Questionnaire (unless the assignee shall already be a Lender
hereunder), the processing and recordation fee referred to in paragraph (b) of
this Section and any written consent to such assignment required by paragraph
(b) of this Section, the Agent shall accept such Assignment and Assumption and
record the information contained therein in the Register. No assignment shall
be effective for purposes of this Agreement unless it has been recorded in the
Register as provided in this paragraph.

(c) A Lender may sell participating interests to an Affiliate of the
participating lender with written notice to the Agent and the Borrower but not
any consent of the Agent, the Borrower or any other Lender, and may sell
participating interests in any of its Loans to an Approved Fund so long as such
participation shall (1) limit the voting rights of the participant, if any, to
the ability to vote for changes in the amount of the Commitment, the interest
rate on the Loans, and the Maturity Date, (2) for the Committed Loans, if the
participant is not an Affiliate of the participating Lender, require the
written consent of the Borrower (so long as no Default is in existence) and the
Agent, such consent not to be unreasonably withheld, (3) for Committed Loans be
in a minimum principal amount of at least $10,000,000.00 if participated to a
Person not already a Lender, and (4) not reduce the Lenders Lender Commitment
which has not been participated to less than $10,000,000.00. In connection
with any sale of a participating interest made in compliance with this
Agreement, (i) the participating Lender shall continue to be liable for its
Lender Commitment and its other obligations under the Credit Documents, (ii)
the Agent, the Borrower and the other Lenders shall continue to deal solely and
directly with the participating Lender in connection with such Lenders rights
and obligations under the Credit Documents, and (iii) the participant may not
require the participating Lender to take or refrain from taking any action
under the Credit Documents that is in conflict with the terms and provisions of
the Credit Documents.

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(d) Notwithstanding any provision hereof to the contrary, (i) any Lender
may assign and pledge all or any portion of its Lender Commitment and Loans to
a Federal Reserve Bank; provided, however, that any such assignment or pledge
shall not relieve such Lender from its obligations under the Credit Documents;
(ii) the Agent may not assign or participate its Lender Commitment so that its
Lender Commitment after such assignment or participation is less than
$15,000,000.00, to any Person other than an Affiliate of the Agent without the
prior written consent of the Borrower, so long as no Default is in existence;
and (iii) JPMC may assign, sell or participate all or any portion of the Swing
Loan without the consent of the Borrower, the Agent or any other Lender.

(e) The term of this Agreement shall be until the final maturity of the
Notes and the payment of all amounts due under the Credit Documents.

(f) Any Lender (each, a Designating Lender) may at any time designate
one Designated Lender to fund Money Market Loans on behalf of such Designating
Lender subject to the terms of this Section 10.5(f), and the provisions in
Sections 10.5(b) and (c) shall not apply to such designation. No Lender may
designate more than one (1) Designated Lender. The parties to each such
designation shall execute and deliver to the Agent for its acceptance a
Designation Agreement. Upon such receipt of an appropriately completed
Designation Agreement executed by a Designating Lender and a designee
representing that it is a Designated Lender, the Agent will accept such
Designation Agreement and will give prompt notice thereof to the Borrower,
whereupon, (i) the Borrower shall execute and deliver to the Designating Lender
a Designated Lender Note payable to the order of the Designated Lender, (ii)
from and after the effective date specified in the Designation Agreement, the
Designated Lender shall become a party to this Agreement with a right (subject
to the provisions of Section 2.8(b)) to make Money Market Loans on behalf of
its Designating Lender pursuant to Section 2.8 after the Borrower has accepted
a Money Market Loan (or portion thereof) of the Designating Lender, and (iii)
the Designated Lender shall not be required to make payments with respect to
any obligations in this Agreement except to the extent of excess cash flow of
such Designated Lender which is not otherwise required to repay obligations of
such Designated Lender which are then due and payable; provided, however, that
regardless of such designation and assumption by the Designated Lender, the
Designating Lender shall be and remain obligated to the Borrower, Agent and the
Lenders for each and every obligation of the Designating Lender and its related
Designated Lender with respect to this Agreement, including, without
limitation, any indemnification obligations under Section 8.5 hereof and any
sums otherwise payable to the Borrower by the Designated Lender. Each
Designating Lender shall serve as the administrative agent of the Designated
Lender and shall on behalf of, and to the exclusion of, the Designated Lender:
(1) receive any and all payments made for the benefit of the Designated Lender
and (2) give and receive all communications and notices and take all actions
hereunder, including, without limitation, votes, approvals, waivers, consents
and amendments under or relating to this Agreement and the other Credit
Documents. Any such notice, communication, vote, approval, waiver, consent or
amendment shall be signed by the Designating Lender as administrative agent for
the Designated Lender and shall not be signed by the Designated Lender on its
own behalf, and shall be binding upon the Designated Lender to the same extent
as if signed by the Designated Lender on its own

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behalf. The Borrower, the Agent and the Lenders may rely thereon without
any requirement that the Designated Lender sign or acknowledge the same. No
Designated Lender may assign or transfer all or any portion of its interest
hereunder or under any other Credit Document, other than assignments to the
Designating Lender which originally designated such Designated Lender or
otherwise in accordance with the provisions of Sections 10.5(b) and (c). The
Agent and each Lender agrees that it will not institute against any Designated
Lender or join any other Person in instituting against any Designated Lender
any bankruptcy, reorganization, arrangement, insolvency or liquidation
proceeding under any federal or state bankruptcy or similar law, until the
later to occur of (x) one year and one day after the payment in full of the
latest maturing commercial paper note issued by such Designated Lender and (y)
the Maturity Date.




10.6 Counterparts. This Agreement may be executed in several identical
counterparts, and by the parties hereto on separate counterparts, and each
counterpart, when so executed and delivered, shall constitute an original
instrument, and all such separate counterparts shall constitute but one and the
same instrument.




10.7 Usury Not Intended; Refund of Any Excess Payments. It is the intent
of the parties in the execution and performance of this Agreement to contract
in strict compliance with the usury laws of the State of Texas and the United
States of America from time to time in effect. In furtherance thereof, the
Agent, the Lenders and the Borrower stipulate and agree that none of the terms
and provisions contained in this Agreement or the other Credit Documents shall
ever be construed to create a contract to pay for the use, forbearance or
detention of money with interest at a rate in excess of the Ceiling Rate and
that for purposes hereof interest shall include the aggregate of all charges
which constitute interest under such laws that are contracted for, reserved,
taken, charged or received under this Agreement. In determining whether or not
the interest paid or payable, under any specific contingency, exceeds the
Ceiling Rate, the Borrower, the Agent and the Lenders shall, to the maximum
extent permitted under applicable law, (a) characterize any nonprincipal
payment as an expense, fee or premium rather than as interest, (b) exclude
voluntary prepayments and the effects thereof, and (c) spread the total
amount of interest throughout the entire contemplated term of the Loans. The
provisions of this paragraph shall control over all other provisions of the
Credit Documents which may be in apparent conflict herewith.




10.8 Captions. The headings and captions appearing in the Credit
Documents have been included solely for convenience and shall not be considered
in construing the Credit Documents.




10.9 Severability. If any provision of any Credit Documents shall be
invalid, illegal or unenforceable in any respect under any applicable law, the
validity, legality and enforceability of the remaining provisions shall not be
affected or impaired thereby.




10.10 Disclosures. Every reference in the Credit Documents to disclosures
of the Borrower to the Agent and the Lenders in writing, to the extent that
such references refer to disclosures at or prior to the execution of this
Agreement, shall be deemed strictly to

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refer only to written disclosures delivered to the Agent and the Lenders
in an orderly manner concurrently with the execution hereof.




10.11 No Novation. THE PARTIES HERETO HAVE ENTERED INTO THIS AGREEMENT
AND THE OTHER CREDIT DOCUMENTS SOLELY TO AMEND, RESTATE AND RESTRUCTURE THE
TERMS OF, AND THE OBLIGATIONS OWING UNDER AND IN CONNECTION WITH, THE CREDIT
AGREEMENT DATED DECEMBER 20, 2000 AMONG THE BORROWER, THE AGENT AND CERTAIN OF
THE LENDERS. THE PARTIES DO NOT INTEND THIS AGREEMENT NOR THE TRANSACTIONS
CONTEMPLATED HEREBY TO BE, AND THIS AGREEMENT AND THE TRANSACTIONS CONTEMPLATED
HEREBY SHALL NOT BE CONSTRUED TO BE, A NOVATION OF ANY OF THE OBLIGATIONS OWING
BY THE BORROWER UNDER OR IN CONNECTION WITH THE SAID CREDIT AGREEMENT.




10.12 Limitation of Liability. NO OBLIGATION OR LIABILITY WHATSOEVER OF
THE BORROWER WHICH MAY ARISE AT ANY TIME UNDER THIS AGREEMENT OR ANY OBLIGATION
OR LIABILITY WHICH MAY BE INCURRED BY IT PURSUANT TO ANY OTHER CREDIT DOCUMENT
SHALL BE PERSONALLY BINDING UPON, NOR SHALL RESORT FOR THE ENFORCEMENT THEREOF
BE HAD TO THE PRIVATE PROPERTY OF, ANY OF THE BORROWERS TRUSTEES OR
SHAREHOLDERS REGARDLESS OF WHETHER SUCH OBLIGATION OR LIABILITY IS IN THE
NATURE OF CONTRACT, TORT OR OTHERWISE.




10.13 Entire Agreement. THIS AGREEMENT AND THE OTHER CREDIT DOCUMENTS
TOGETHER CONSTITUTE A WRITTEN AGREEMENT AND REPRESENT THE FINAL AGREEMENT
BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO
UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

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IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date set forth above.

| |  |                                 |  | 
| |  | ------------------------------- |  | 
| |  | ARCHSTONE-SMITH OPERATING TRUST
| |  |                                 |  | 
| |  | By:                             |  | 
| |  |                                 |  | 
| |  | Name:                           |  | 
| |  |                                 |  | 
| |  | Title:                          |  | 
| |  |                                 |  | 
| |  |                                 |  | 
| |  | Address:                       
| |  | 9200 E. Panorama Circle        
| |  | Suite 400                      
| |  | Englewood, Colorado 80112      
| |  | Attention: Corporate Finance   

The Parent joins in the execution of this Agreement to evidence its agreement
to the provisions of Sections 5.2, 5.11(b) and (c), and 6.6 of this Agreement.

| |  |                         |  | 
| |  | ----------------------- |  | 
| |  | ARCHSTONE  SMITH TRUST
| |  |                         |  | 
| |  | By:                     |  | 
| |  |                         |  | 
| |  | Name:                   |  | 
| |  |                         |  | 
| |  | Title:                  |  | 
| |  |                         |  | 

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|                                  |  |                                       |  |             
|--------------------------------- |  | ------------------------------------- |  | ------------
|Lender Commitment: $35,000,000.00 |  | JPMORGAN CHASE BANK,                 
|Percentage: 5.833333333%          |  | as Agent and as a Lender             
|                                  |  |                                       |  |             
|                                  |  | By:                                   |  |             
|                                  |  |                                       |  |             
|                                  |  | Name:                                 |  |             
|                                  |  |                                       |  |             
|                                  |  | Title:                                |  |             
|                                  |  |                                       |  |             
|                                  |  | Address:                             
|                                  |  | 712 Main Street                      
|                                  |  | Houston, Texas 77002                 
|                                  |  | Attention: Manager, Real Estate Group
|                                  |  |                                       |  |             
|                                  |  | Telecopy No.: 713/216-7713           
|                                  |  | Telephone No.: Kent Kaiser           
|                                  |  |                                       |  | 713/216-8699

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|                                  |  |                                |  | 
|--------------------------------- |  | ------------------------------ |  | 
|Lender Commitment: $30,000,000.00 |  | CITICORP NORTH AMERICA, INC.  
|Percentage: 5.000000000%          |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | By:                            |  | 
|                                  |  |                                |  | 
|                                  |  | Name:                          |  | 
|                                  |  |                                |  | 
|                                  |  | Title:                         |  | 
|                                  |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | By:                            |  | 
|                                  |  |                                |  | 
|                                  |  | Name:                          |  | 
|                                  |  |                                |  | 
|                                  |  | Title:                         |  | 
|                                  |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | Address:                      
|                                  |  | 390 Greenwich Street          
|                                  |  | New York, New York 10013      
|                                  |  | Attention: Mr. Michael Chlopak
|                                  |  |                                |  | 
|                                  |  | Telephone No.: 212/723-5899   
|                                  |  | Telecopier No.: 212/723-8380  

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|                                  |  |                                   |  | 
|--------------------------------- |  | --------------------------------- |  | 
|Lender Commitment: $35,000,000.00 |  | BANK OF AMERICA, N.A.            
|Percentage: 5.833333333%          |  |                                   |  | 
|                                  |  |                                   |  | 
|                                  |  | By:                               |  | 
|                                  |  |                                   |  | 
|                                  |  | Name:                             |  | 
|                                  |  |                                   |  | 
|                                  |  | Title:                            |  | 
|                                  |  |                                   |  | 
|                                  |  |                                   |  | 
|                                  |  | Address:                         
|                                  |  | 901 Main Street, 64th Floor      
|                                  |  | Dallas, Texas 75202              
|                                  |  | Attention: Charlotte Wai Deinhart
|                                  |  |                                   |  | 
|                                  |  | Telephone No.: 214/209-9129      
|                                  |  | Telecopier No.: 214/209-0995     

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|                                  |  |                                  |  | 
|--------------------------------- |  | -------------------------------- |  | 
|Lender Commitment: $35,000,000.00 |  | WELLS FARGO BANK, NATIONAL      
|Percentage: 5.833333333%          |  | ASSOCIATION                     
|                                  |  |                                  |  | 
|                                  |  | By:                              |  | 
|                                  |  |                                  |  | 
|                                  |  | Name:                            |  | 
|                                  |  |                                  |  | 
|                                  |  | Title:                           |  | 
|                                  |  |                                  |  | 
|                                  |  |                                  |  | 
|                                  |  | Address:                        
|                                  |  | 4643 S. Ulster Street           
|                                  |  | Suite 1400                      
|                                  |  | Denver, Colorado 80237          
|                                  |  | Attention: Martia Kontak        
|                                  |  |                                  |  | 
|                                  |  | Telephone No.: 303/741-0800 X208
|                                  |  | Telecopy No.: 303/741-0867      

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|                                  |  |                                 |  | 
|--------------------------------- |  | ------------------------------- |  | 
|Lender Commitment: $35,000,000.00 |  | COMMERZBANK AG, NEW YORK       
|Percentage: 5.833333333%          |  | BRANCH                         
|                                  |  |                                 |  | 
|                                  |  | By:                             |  | 
|                                  |  |                                 |  | 
|                                  |  | Name:                           |  | 
|                                  |  |                                 |  | 
|                                  |  | Title:                          |  | 
|                                  |  |                                 |  | 
|                                  |  |                                 |  | 
|                                  |  | By:                             |  | 
|                                  |  |                                 |  | 
|                                  |  | Name:                           |  | 
|                                  |  |                                 |  | 
|                                  |  | Title:                          |  | 
|                                  |  |                                 |  | 
|                                  |  |                                 |  | 
|                                  |  | Address:                       
|                                  |  | Commerzbank AG, New York Branch
|                                  |  | 2 World Financial Center       
|                                  |  | New York, New York 10281-1050  
|                                  |  | Attention: David Schwarz       
|                                  |  |                                 |  | 
|                                  |  | Telephone No.: 212/266-7632    
|                                  |  | Telecopy No.: 212/266-7565     

69



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|                                  |  |                                   |  | 
|--------------------------------- |  | --------------------------------- |  | 
|Lender Commitment: $20,000,000.00 |  | MELLON BANK, N.A.                
|Percentage: 3.333333333%          |  |                                   |  | 
|                                  |  |                                   |  | 
|                                  |  | By:                               |  | 
|                                  |  |                                   |  | 
|                                  |  | Name:                             |  | 
|                                  |  |                                   |  | 
|                                  |  | Title:                            |  | 
|                                  |  |                                   |  | 
|                                  |  |                                   |  | 
|                                  |  | Address:                         
|                                  |  | One Mellon Bank Center, Room 5325
|                                  |  | Pittsburgh, PA 15258-0001        
|                                  |  | Attention: James McDunn          
|                                  |  |                                   |  | 
|                                  |  | Telephone No.: 412/234-5344      
|                                  |  | Telecopy No.:412/234-8657        

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|                                  |  |                                |  | 
|--------------------------------- |  | ------------------------------ |  | 
|Lender Commitment: $26,000,000.00 |  | SOUTHTRUST BANK               
|Percentage: 4.333333333%          |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | By:                            |  | 
|                                  |  |                                |  | 
|                                  |  | Name:                          |  | 
|                                  |  |                                |  | 
|                                  |  | Title:                         |  | 
|                                  |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | Address:                      
|                                  |  | 600 West Peachtree, Suite 2600
|                                  |  | Atlanta, Georgia 30308        
|                                  |  | Attention: Jim Miller         
|                                  |  |                                |  | 
|                                  |  | Telephone No.: 404/532-5259   
|                                  |  | Telecopy No.: 404/532-5280    

71



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|                                  |  |                                |  | 
|--------------------------------- |  | ------------------------------ |  | 
|Lender Commitment: $30,000,000.00 |  | SUNTRUST BANK                 
|Percentage: 5.000000000%          |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | By:                            |  | 
|                                  |  |                                |  | 
|                                  |  | Name:                          |  | 
|                                  |  |                                |  | 
|                                  |  | Title:                         |  | 
|                                  |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | Address:                      
|                                  |  | 8245 Boone Blvd., Suite 820   
|                                  |  | Vienna, Virginia 22182        
|                                  |  | Attention: Gregory T. Horstman
|                                  |  |                                |  | 
|                                  |  | Telephone No.: 703/902-9384   
|                                  |  | Telecopy No.: 703/902-9245    

72



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|                                  |  |                                    |  | 
|--------------------------------- |  | ---------------------------------- |  | 
|Lender Commitment: $35,000,000.00 |  | BANK ONE, NA                      
|Percentage: 5.833333333%          |  |                                    |  | 
|                                  |  |                                    |  | 
|                                  |  | By:                                |  | 
|                                  |  |                                    |  | 
|                                  |  | Name:                              |  | 
|                                  |  |                                    |  | 
|                                  |  | Title:                             |  | 
|                                  |  |                                    |  | 
|                                  |  |                                    |  | 
|                                  |  | By:                                |  | 
|                                  |  |                                    |  | 
|                                  |  | Name:                              |  | 
|                                  |  |                                    |  | 
|                                  |  | Title:                             |  | 
|                                  |  |                                    |  | 
|                                  |  | Address:                          
|                                  |  | Corporate Real Estate             
|                                  |  | One Bank One Plaza, Suite IL1-0315
|                                  |  | Chicago, Illinois 60670-0374      
|                                  |  | Attention: Angela L. Kleiman      
|                                  |  |                                    |  | 
|                                  |  | Telephone No.: 312/325-3120       
|                                  |  | Telecopy No.: 312/325-3122        

73



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|                                  |  |                                  |  | 
|--------------------------------- |  | -------------------------------- |  | 
|Lender Commitment: $26,000,000.00 |  | UNION BANK OF CALIFORNIA, N.A.  
|Percentage: 4.333333333%          |  |                                  |  | 
|                                  |  | By:                              |  | 
|                                  |  |                                  |  | 
|                                  |  | Name:                            |  | 
|                                  |  |                                  |  | 
|                                  |  | Title:                           |  | 
|                                  |  |                                  |  | 
|                                  |  | Address:                        
|                                  |  | 350 California Street, 7th Floor
|                                  |  | San Francisco, California 94120 
|                                  |  | Attention: Karen Kokame         
|                                  |  |                                  |  | 
|                                  |  | Telephone No.: 415/705-7116     
|                                  |  | Telecopy No.: 415/433-7438      

74



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|                                  |  |                                  |  |                        
|--------------------------------- |  | -------------------------------- |  | -----------------------
|Lender Commitment: $30,000,000.00 |  | KEYBANK NATIONAL ASSOCIATION    
|Percentage: 5.000000000%          |  |                                  |  |                        
|                                  |  |                                  |  |                        
|                                  |  | By:                              |  |                        
|                                  |  |                                  |  |                        
|                                  |  | Name:                            |  |                        
|                                  |  |                                  |  |                        
|                                  |  | Title:                           |  |                        
|                                  |  |                                  |  |                        
|                                  |  |                                  |  |                        
|                                  |  | Address:                        
|                                  |  | 1675 Broadway, Suite 400        
|                                  |  | Denver, Colorado 80202          
|                                  |  | Attention:                       |  | Scott Childs and Cheryl
|                                  |  |                                  |  | Van Klompenberg        
|                                  |  |                                  |  |                        
|                                  |  | Telephone No.: 720/904-4407/4441
|                                  |  | Telecopy No.: 720/904-4410/4420 

75



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|                                  |  |                                  |  | 
|--------------------------------- |  | -------------------------------- |  | 
|Lender Commitment: $26,000,000.00 |  | CITIZENS BANK OF MASSACHUSETTS  
|Percentage: 4.333333333%          |  |                                  |  | 
|                                  |  |                                  |  | 
|                                  |  | By:                              |  | 
|                                  |  |                                  |  | 
|                                  |  | Name:                            |  | 
|                                  |  |                                  |  | 
|                                  |  | Title:                           |  | 
|                                  |  |                                  |  | 
|                                  |  |                                  |  | 
|                                  |  | Address:                        
|                                  |  | One Citizens Plaza (RC0440)     
|                                  |  | Providence, Rhode Island 02903  
|                                  |  | Attention: Craig E. Schermerhorn
|                                  |  |                                  |  | 
|                                  |  | Telephone No.: 401/455-5425     
|                                  |  | Telecopy No.: 401/282-4485      

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|                                  |  |                                |  | 
|--------------------------------- |  | ------------------------------ |  | 
|Lender Commitment: $30,000,000.00 |  | PNC BANK, NATIONAL ASSOCIATION
|Percentage: 5.000000000%          |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | By:                            |  | 
|                                  |  |                                |  | 
|                                  |  | Name:                          |  | 
|                                  |  |                                |  | 
|                                  |  | Title:                         |  | 
|                                  |  |                                |  | 
|                                  |  | Address:                      
|                                  |  | One PNC Plaza, 19th Floor     
|                                  |  | Mail Stop PL-POPP-19-2        
|                                  |  | Pittsburgh, Pennsylvania 15222
|                                  |  | Attention: Paul Jamiolkowski  
|                                  |  |                                |  | 
|                                  |  | Telephone No.: 412/768-3928   
|                                  |  | Telecopy No.: 412/762-6500    

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|                                  |  |                                |  | 
|--------------------------------- |  | ------------------------------ |  | 
|Lender Commitment: $25,000,000.00 |  | U.S. BANK NATIONAL ASSOCIATION
|Percentage: 4.166666667%          |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | By:                            |  | 
|                                  |  |                                |  | 
|                                  |  | Name:                          |  | 
|                                  |  |                                |  | 
|                                  |  | Title:                         |  | 
|                                  |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | Address:                      
|                                  |  | 918 17th Street, 5th Floor    
|                                  |  | Denver, Colorado 80203        
|                                  |  | Attention: Leanne Toler       
|                                  |  |                                |  | 
|                                  |  | Telephone No.: 303/585-4172   
|                                  |  | Telecopy No.: 303/585-4199    

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|                                  |  |                                  |  | 
|--------------------------------- |  | -------------------------------- |  | 
|Lender Commitment: $10,000,000.00 |  | SCOTIABANC, INC.                
|Percentage: 1.666666667%          |  |                                  |  | 
|                                  |  |                                  |  | 
|                                  |  | By:                              |  | 
|                                  |  |                                  |  | 
|                                  |  | Name:                            |  | 
|                                  |  |                                  |  | 
|                                  |  | Title:                           |  | 
|                                  |  |                                  |  | 
|                                  |  |                                  |  | 
|                                  |  | Address:                        
|                                  |  | 600 Peachtree Street, Suite 2700
|                                  |  | Atlanta, Georgia 30308          
|                                  |  | Attention: Bill Zarrett         
|                                  |  |                                  |  | 
|                                  |  | Telephone No.: 404/877-1504     
|                                  |  | Telecopy No.: 404/888-8998      

|                                  |  |                                   |  | 
|--------------------------------- |  | --------------------------------- |  | 
|Lender Commitment: $20,000,000.00 |  | THE BANK OF NOVA SCOTIA          
|Percentage: 3.333333333%          |  |                                   |  | 
|                                  |  |                                   |  | 
|                                  |  | By:                               |  | 
|                                  |  |                                   |  | 
|                                  |  | Name:                             |  | 
|                                  |  |                                   |  | 
|                                  |  | Title:                            |  | 
|                                  |  |                                   |  | 
|                                  |  |                                   |  | 
|                                  |  | Address:                         
|                                  |  | 580 California Street, Suite 2100
|                                  |  | San Francisco, California 94104  
|                                  |  | Attention: Abid Gilani           
|                                  |  |                                   |  | 
|                                  |  | Telephone No.: 415/816-9800      
|                                  |  | Telecopy No.: 415/397-0791       

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|                                  |  |                                     |  | 
|--------------------------------- |  | ----------------------------------- |  | 
|Lender Commitment: $26,000,000.00 |  | MANUFACTURERS AND TRADERS          
|Percentage: 4.333333333%          |  | TRUST COMPANY                      
|                                  |  |                                     |  | 
|                                  |  | By:                                 |  | 
|                                  |  |                                     |  | 
|                                  |  | Name:                               |  | 
|                                  |  |                                     |  | 
|                                  |  | Title:                              |  | 
|                                  |  |                                     |  | 
|                                  |  |                                     |  | 
|                                  |  | Address:                           
|                                  |  | Mail Code 101-747                  
|                                  |  | 25 South Charles Street, 17th Floor
|                                  |  | Baltimore, Maryland 21201          
|                                  |  | Attention: Ken Crawford            
|                                  |  |                                     |  | 
|                                  |  | Telephone No.: 410/545-2369        
|                                  |  | Telecopy No.: 410/545-2017         

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|                                  |  |                                |  | 
|--------------------------------- |  | ------------------------------ |  | 
|Lender Commitment: $26,000,000.00 |  | MORGAN STANLEY BANK           
|Percentage:   4.333333333%        |  |                                |  | 
|                                  |  |                                |  | 
|                                  |  | By:                            |  | 
|                                  |  |                                |  | 
|                                  |  | Name:                          |  | 
|                                  |  |                                |  | 
|                                  |  | Title:                         |  | 
|                                  |  |                                |  | 
|                                  |  | Address:                      
|                                  |  | 750 Seventh Avenue, 11th Floor
|                                  |  | New York, New York 10020      
|                                  |  | Attention: Christopher Whelan 
|                                  |  |                                |  | 
|                                  |  | Telephone No.: 212/762-2929   
|                                  |  | Telecopy No.: 212/762-0346    

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|                                  |  |                             |  | 
|--------------------------------- |  | --------------------------- |  | 
|Lender Commitment: $25,000,000.00 |  | LASALLE BANK NATIONAL      
|Percentage: 4.166666667%          |  | ASSOCIATION                
|                                  |  |                             |  | 
|                                  |  | By:                         |  | 
|                                  |  |                             |  | 
|                                  |  | Name:                       |  | 
|                                  |  |                             |  | 
|                                  |  | Title:                      |  | 
|                                  |  |                             |  | 
|                                  |  | Address:                   
|                                  |  | 135 South LaSalle Street   
|                                  |  | Chicago, Illinois 60603    
|                                  |  | Attention: Jay Palmer      
|                                  |  |                             |  | 
|                                  |  | Telephone No.: 312/904-7211
|                                  |  | Telecopy No.: 312/904-6691 

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|                                  |  |                                  |  | 
|--------------------------------- |  | -------------------------------- |  | 
|Lender Commitment: $20,000,000.00 |  | BANK OF CHINA, NEW YORK BRANCH  
|Percentage: 3.333333333%          |  |                                  |  | 
|                                  |  |                                  |  | 
|                                  |  | By:                              |  | 
|                                  |  |                                  |  | 
|                                  |  | Name:                            |  | 
|                                  |  |                                  |  | 
|                                  |  | Title:                           |  | 
|                                  |  |                                  |  | 
|                                  |  |                                  |  | 
|                                  |  | Address:                        
|                                  |  | 410 Madison Avenue              
|                                  |  | New York, New York 10017        
|                                  |  | Attention: Joseph Zeng          
|                                  |  |                                  |  | 
|                                  |  | Telephone No.: 212/935-3101 X408
|                                  |  | Telecopy No.: 212/308-4993      

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|                                  |  |                               |  | 
|--------------------------------- |  | ----------------------------- |  | 
|Lender Commitment: $20,000,000.00 |  | LEHMAN BROTHERS BANK, FSB    
|Percentage: 3.333333333%          |  |                               |  | 
|                                  |  |                               |  | 
|                                  |  | By:                           |  | 
|                                  |  |                               |  | 
|                                  |  | Name:                         |  | 
|                                  |  |                               |  | 
|                                  |  | Title:                        |  | 
|                                  |  |                               |  | 
|                                  |  |                               |  | 
|                                  |  | Address:                     
|                                  |  | 745 Seventh Avenue, 6th Floor
|                                  |  | New York, New York 10019     
|                                  |  | Attention: Jane Gillard      
|                                  |  |                               |  | 
|                                  |  | Telephone No.: 212/526-7417  
|                                  |  | Telecopy No.: 646/758-2538   

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|                                  |  |                                  |  | 
|--------------------------------- |  | -------------------------------- |  | 
|Lender Commitment: $15,000,000.00 |  | COMPASS BANK                    
|Percentage: 2.500000000%          |  |                                  |  | 
|                                  |  |                                  |  | 
|                                  |  | By:                              |  | 
|                                  |  |                                  |  | 
|                                  |  | Name:                            |  | 
|                                  |  |                                  |  | 
|                                  |  | Title:                           |  | 
|                                  |  |                                  |  | 
|                                  |  | Address:                        
|                                  |  | 15 South 20th Street, 15th Floor
|                                  |  | Birmingham, Alabama 35233       
|                                  |  | Attention: Johanna Duke Paley   
|                                  |  |                                  |  | 
|                                  |  | Telephone No.: 205/297-3851     
|                                  |  | Telecopy No.: 205/297-7994      

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|                                  |  |                                   |  | 
|--------------------------------- |  | --------------------------------- |  | 
|Lender Commitment: $10,000,000.00 |  | CHEVY CHASE BANK, F.S.B.         
|Percentage:   1.666666667%        |  |                                   |  | 
|                                  |  |                                   |  | 
|                                  |  | By:                               |  | 
|                                  |  |                                   |  | 
|                                  |  | Name:                             |  | 
|                                  |  |                                   |  | 
|                                  |  | Title:                            |  | 
|                                  |  |                                   |  | 
|                                  |  | Address:                         
|                                  |  | 7501 Wisconsin Avenue, 12th Floor
|                                  |  | Bethesda, Maryland 20814         
|                                  |  | Attention: J. Jordan ONeill, III
|                                  |  |                                   |  | 
|                                  |  | Telephone No.: 240/497-7733      
|                                  |  | Telecopy No.: 240/497-7714       

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|                                  |  |                                    |  | 
|--------------------------------- |  | ---------------------------------- |  | 
|Lender Commitment: $10,000,000.00 |  | E. SUN COMMERCIAL BANK, LTD., LOS 
|Percentage: 1.666666667%          |  | ANGELES BRANCH                    
|                                  |  |                                    |  | 
|                                  |  | By:                                |  | 
|                                  |  |                                    |  | 
|                                  |  | Name:                              |  | 
|                                  |  |                                    |  | 
|                                  |  | Title:                             |  | 
|                                  |  |                                    |  | 
|                                  |  |                                    |  | 
|                                  |  | Address:                          
|                                  |  | 17700 Castleton Street, Suite 500 
|                                  |  | City of Industry, California 91748
|                                  |  | Attention: Nina Siu               
|                                  |  |                                    |  | 
|                                  |  | Telephone No.: 626/810-2400 X223  
|                                  |  | Telecopy No.: 626/839-5531        

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SCHEDULE I

AMERITON Properties Incorporated

ASN Richardson Highlands LLC
ASN Roosevelt Center LLC
SCA North Carolina Limited Partnership

API Hibiscus LLC
API Jefferson Park LLC
API Methuen LLC
ASN Rockville LLC
Kentlands Village Business Trust

Briar Meadows Apartments LLC

ASN Bowie LLC
ASN Cambridge LLC
ASN Esplanade at Park Center LLC
ASN Estancia LLC
ASN Fairfax Corner LLC
ASN Lakeshore East LLC
ASN Miramar Lakes LLC
ASN Northgate, LLC
ASN Park Essex LLC
ASN Santa Monica LLC
ASN Saybrooke LLC
ASN Sussex Commons LLC
ASN Ventura LLC
ASN Warner Center, LLC
ASN Washington Boulevard LLC
ASN Watertown LLC
ASN Dakota Ridge LLC
ASN-Massachusetts Holdings (2) LLC
ASN-Massachusetts Holdings (3) LLC
ASN-Washington Holdings (1) LLC
ASN Wendemere, LLC
Courthouse Hill LLC
PTR-California Holdings (3) LLC
SCA Florida Holdings (2) LLC
Security Capital Atlantic Multifamily LLC
Smith Property Holdings Ballston Place L.L.C.
Smith Property Holdings Harbour House South L.L.C.
Smith Property Holdings Illinois Center L.L.C.





---



##### Table of Contents



Smith Property Holdings Lincoln Towers L.L.C.
Smith Property Holdings One East Delaware L.L.C.
Smith Property Holdings Reston Landing L.L.C.
Smith Property Holdings South Beach Towers L.L.C.
Smith Property Holdings Sunset Pointe Court L.L.C.
Smith Property Holdings Sunset Pointe 3 L.L.C.
Smith Property Holdings Sunset Pointe North L.L.C.
Smith Property Holdings Superior Place L.L.C.

Smith Property Holdings Harbor House L.L.C.

First Herndon Associates Limited Partnership
Smith Property Holdings 4411 Connecticut L.L.C.
Smith Property Holdings Columbia Road L.P.
Smith Property Holdings Crystal Towers L.P.
Smith Property Holdings Five L.P.
Smith Property Holdings Six L.P.

2



---



##### Table of Contents



OFFICERS CERTIFICATE

Archstone-Smith Operating Trust (the Borrower), Archstone-Smith Trust
(the Parent), JPMorgan Chase Bank (JPMC), Wells Fargo Bank, N.A. and Bank
of America, N.A., as Agents (the Agents) and certain other Lenders (the
Lenders) entered into that certain Amended and Restated Credit Agreement (the
Agreement) dated as of , 2003, as the same may be amended.
Any term used herein and not otherwise defined shall have the meaning ascribed
to it in the Agreement.

The undersigned hereby certifies that:



|I.   |  | I am a Vice President of the Borrower and a Vice President of the Parent,
and I make these certifications on behalf of the Borrower or the Parent,
as applicable.                                                                                                                                                                                                                                                                                                                                         
|---- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|    
|II.  |  | The Parents financial statements as of      as filed with the
Securities and Exchange Commission (SEC), and the Borrowers financial
statements as of      delivered to JPMC, were prepared in
conformity with generally accepted accounting principles consistently
applied and present fairly the financial position of the Parent and of the
Borrower, respectively, as of the date thereof and the results of its
operations for the period covered thereby subject to normal year-end
adjustments.
|    
|III. |  | Borrower hereby certifies the following as of the end of the period
covered by the financial statements described above:                                                                                                                                                                                                                                                                                                                                                                                  



| | 1. |  | Maximum Debt to Total Asset Value Ratio Calculation
| | -- |  | ---------------------------------------------------
|
| |    |  | (Section 5.3 (e))                                  

| |  |     |  |                                                                |  |  
| |  | --- |  | -------------------------------------------------------------- |  | -
| |  | (A) |  | Indebtedness (Borrower and Parent)                             |  |  
| |  |     |  | Total Unsecured Debt (per GAAP)                                |  | $
| |  |     |  | Total Secured Debt (per GAAP)                                  |  | $
| |  |     |  | Guarantees, Endorsements and Other Contingent Obligations      |  | $
| |  |     |  | Obligations under Hedging Agreements, as defined               |  | $
| |  |     |  | Equity Percentage of Indebtedness of Unconsolidated Affiliates |  | $
| |  |     |  | Other (pursuant to the Agreement)                              |  | $
| |  |     |  | Total Indebtedness, as defined                                 |  | $
| |  | (B) |  | Total Asset Value:                                             |  |  
| |  |     |  | Aggregated Net Operating Income from Stabilized Properties     |  |  
| |  |     |  | Divided by 8.00%                                               |  | $
| |  |     |  | Historical Value of Pre-Stabilized Properties                  |  | $
| |  |     |  | Historical Value of Properties Under Construction              |  | $
| |  |     |  | Historical Value of Undeveloped Land                           |  | $
| |  |     |  | Other Assets (excluding intangibles as defined by GAAP)        |  | $
| |  |     |  | Total Asset Value of Unconsolidated Affiliates                 |  | $

EXHIBIT A

Page 1 of 7 Pages



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##### Table of Contents



| |  |     |  |                                                                               |                       |     
| |  | --- |  | ----------------------------------------------------------------------------- | --------------------- | ----
| |  |     |  | Total Asset Value, as defined                                                 |                       | $   
| |  | (C) |  | Maximum Debt to Total Asset Value (Ratio of 1(A) to 1(B))
Required: Maximum:  |                       | 60% 
| |  |     |  |                                                                               |                       |     
| |  | 2.  |  | Maximum Secured Debt Calculation                                              |                       |     
| |  |     |  | (Section 5.3 (a))                                                             |                       |     
| |  |     |  |                                                                               |                       |     
| |  |     |  | (A)    Secured Debt, as defined                                               |                       | $   
| |  |     |  | (B)    Total Asset Value, as defined                                          |                       | $   
| |  |     |  | (C)    Maximum Secured Debt to
Total Asset Value                              |                       |     
| |  |     |  | (Ratio of 2(A) to 2(B))                                                       |                       |     
| |  |     |  | Required:Maximum:                                                             |                       | 40% 
| |  |     |  |                                                                               |                       |     
| |  | 3.  |  | Coverage Ratio Calculation                                                    |                       |     
| |  |     |  | (Section 5.3 (b))                                                             |                       |     
| |  |     |  |                                                                               |                       |     
| |  | (A) |  | Borrowers EBITDA:                                                            |                       |     
| |  |     |  | Net Income (per GAAP)                                                         |                       | $   
| |  |     |  | Plus:                                                                         |                       |     
| |  |     |  | Depreciation and Amortization (per GAAP)                                      |                       | $   
| |  |     |  | Interest Expense, as defined, of Borrower
and Parent                          |                       | $   
| |  |     |  | Income Taxes (per GAAP)                                                       |                       | $   
| |  |     |  | Extraordinary Gains/Losses (per GAAP)                                         |                       | $   
| |  |     |  | Payments on Borrowers Preferred Stock (to
the extent included in net income) |                       | $   
| |  |     |  | Equity Percentage of EBITDA for                                               |                       | $   
| |  |     |  | Unconsolidated Affiliates                                                     |                       | $   
| |  |     |  | Other (pursuant to the Agreement)                                             |                       | $   
| |  |     |  | Borrowers EBITDA, as defined                                                 |                       | $   
| |  | (B) |  | Dividends and Distributions Paid with Respect to
Disqualified Stock           |                       | $   
| |  | (C) |  | Interest Expense, as defined, of Borrower and Parent                          |                       | $   
| |  | (D) |  | Sum of 3(B) and 3(C)                                                          |                       | $   
| |  | (E) |  | Coverage Ratio (Ratio of 3(A) to 3(D))                                        |                       | :1.0
| |  |     |  |                                                                               |                       |     
| |  |     |  | Required:                                                                     | Minimum of 2.0 to 1.0
| |  |     |  |                                                                               |                       |     
| |  | 4.  |  | Fixed Charge Coverage Ratio Calculation                                       |                       |     
| |  |     |  | (Section 5.3(c))                                                              |                       |     
| |  |     |  |                                                                               |                       |     
| |  | (A) |  | Borrowers EBITDA, as defined                                                 |                       | $   
| |  | (B) |  | Unit Capital Expenditures                                                     |                       | $   
| |  | (C) |  | EBITDA minus Unit Capital Expenditures                                        |                       | $   

EXHIBIT A

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| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  | --------- | --------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------- | ---
| |  | (D)       |                 | Interest Expense, as defined, of Borrower and Parent                                                                                                                                                                          |                           | $  
| |  | (E)       |                 | Payments and Payables on Disqualified Stock                                                                                                                                                                                   |                           | $  
| |  | (F)       |                 | Regularly Scheduled Principal Paid and Payable
(Borrower and Parent)                                                                                                                                                          |                           | $  
| |  | (G)       |                 | Sum of 4(D), 4(E) and 4(F)                                                                                                                                                                                                    |                           | $  
| |  | (H)       |                 | Fixed Charge Coverage Ratio (Ratio of 4(C) to 4(G))                                                                                                                                                                           |                           | 1.0
| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  |           |                 | Required:                                                                                                                                                                                                                     | Minimum of 1.75 to 1.0   
| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  | 5.        |                 | Tangible Net Worth                                                                                                                                                                                                            |                           |    
| |  |           |                 | (Section 5.3(d))                                                                                                                                                                                                              |                           |    
| |  |           |                 | Assets                                                                                                                                                                                                                        |                           | $  
| |  |           |                 | Liabilities                                                                                                                                                                                                                   |                           | $  
| |  |           |                 | Tangible Net Worth, as defined                                                                                                                                                                                                |                           | $  
| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  |           |                 | Required:                                                                                                                                                                                                                     | Minimum of $3.500 billion
| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  | 6.        |                 | Property Pool                                                                                                                                                                                                                 |                           |    
| |  |           |                 | (Section 5.15)                                                                                                                                                                                                                |                           |    
| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  | (A)       |                 | Sum of the Aggregate Net Operating Income for Pool Real Estate   That Has Reached the Stabilization Date Divided by 8.00% and the
Aggregate Historical Value for Pool Real Estate That Has Not
Reached the Stabilization Date |                           | $  
| |  | (B)       |                 | Outstanding Unsecured Indebtedness                                                                                                                                                                                            |                           | $  
| |  | (C)       |                 | Pool Value Divided by Outstanding Unsecured
Indebtedness (6(A) divided by 6(B))                                                                                                                                               |                           | %  
| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  | Required: | Minimum of 167%
| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  | (D)       |                 | Pool Value attributable to unimproved land (Maximum-5%)                                                                                                                                                                       |                           | $  
| |  | (E)       |                 | Pool Value attributable to unimproved land, land under
construction or development, projects that do not have 80%
Occupancy Level, non-multifamily land, land that has not
reached the Calculation Date (Maximum-20%)         |                           | $  
| |  | (F)       |                 | Pool Value attributable to improved property that is not
multifamily residential (Maximum-10%)                                                                                                                                |                           | $  
| |  | (G)       |                 | The Borrower confirms that it has received the
environmental assessments required by
Section 5.15(a)(i)                                                                                                                       |                           |    
| |  |           |                 |                                                                                                                                                                                                                               |                           |    
| |  | 7.        |                 | Specified Permitted Holdings                                                                                                                                                                                                  |                           |    
| |  |           |                 | (Section 6.3)                                                                                                                                                                                                                 |                           |    

EXHIBIT A

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| |  |     |  |                                                                                          |  | 
| |  | --- |  | ---------------------------------------------------------------------------------------- |  | 
| |  | (A) |  | Securities Received in Settlement Liabilities Created in the
Ordinary Course of Business |  | 
| |  |     |  | (Maximum  5%)                                                                           |  | 
| |  | (B) |  | Unconsolidated Affiliates Engaged in Permitted Businesses                                |  | 
| |  |     |  | (Maximum  20%)                                                                          |  | 
| |  | (C) |  | Loans to Unaffiliated Persons                                                            |  | 
| |  |     |  | (Maximum  10%)                                                                          |  | 
| |  | (D) |  | Other Securities                                                                         |  | 
| |  |     |  | (Maximum  10%)                                                                          |  | 
| |  | (E) |  | Income Producing Properties That Are Not Multifamily
Residential                         |  | 
| |  |     |  | (Maximum  10%)                                                                          |  | 
| |  | (F) |  | Unimproved Land                                                                          |  | 
| |  |     |  | (Maximum  7.5%)                                                                         |  | 
| |  | (G) |  | Unrelated, Non-Incidental Investments                                                    |  | 
| |  |     |  | (Maximum  5%)                                                                           |  | 
| |  | (H) |  | Aggregate Value of the specified Permitted Holdings
(sum of 7(A) through 7(H))           |  | 
| |  |     |  | (Maximum  30%)                                                                          |  | 



|IV. |  | A review of the activities of the Borrower during the period covered by
the financial statements has been made under my supervision and with a
view to determining whether during such period the Borrower has kept,
observed, performed and fulfilled all of its obligations under the
Agreement.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|--- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   
|    |  | The Parent has made available its financial statements and related
footnotes for the most recent period ended      , as filed with the
SEC and can be accessed at http://www.sec.gov/. The Borrower has
delivered to JPMC its financial statements and related footnotes for the
most recent period ended      . The Parents and the Borrowers
earnings press releases and supplemental information for such period have
been posted to the Parents website (         ). The
financial statements were prepared in conformity with generally accepted
accounting principles consistently applied (except for the omission of
footnote disclosures and appropriately disclosed consistency exceptions)
and present fairly the financial position of the Parent and the Borrower,
respectively, as of the date thereof and the results of its operations
for the period covered thereby subject to normal year-end adjustments.
|   
|V.  |  | (Check either (A) or (B))                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

|     |  |                                                                                                                                                                                         
|---- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|[  ] |  | (A) The Borrower has kept, observed, performed and
fulfilled each and every one of its obligations under the Agreement
during the period covered by the applicable financial statements.

EXHIBIT A

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|     |  |                                                                                                                                                                                                                                                                                                                                                                                            
|---- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|[  ] |  | (B) The Borrower has kept, observed, performed and
fulfilled each and every one of its obligations under the Agreement
during the period covered by the applicable financial statements
except for the following matters: [Describe all such defaults,
specifying the nature, duration and status thereof and what action
the Borrower has taken or proposes to take with respect thereto].



|VI. |  | With regard to Section 1004 of the Indenture dated as of February 1, 1994 between the Borrower and Morgan
Guaranty Trust Company of New York, as Trustee (and using the terms defined therein), a certificate required
thereunder showing compliance with Section 1004 is attached (only required for the fourth quarter Officers
Certificate), for the most recent period ended           :
|--- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  |    |  |  |     |  |                                                                                                                                                                          |  |  
| |  |  | -- |  |  | --- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |  | -
| |  |  | 1. |  |  | (A) |  | Sum of Total Assets, Aggregate Purchase Price of Real
Estate Assets, or Mortgages Receivable Acquired, and
Securities Offering Proceeds Received to Purchase
said Assets |  | $
| |  |  |    |  |  | (B) |  | Maximum amount of Debt                                                                                                                                                   |  | $
| |  |  |    |  |  | (C) |  | Debt                                                                                                                                                                     |  | $
| |  |  |    |  |  |     |  |                                                                                                                                                                          |  |  
| |  |  | 2. |  |  | (A) |  | Consolidated Income Available for Debt Service                                                                                                                           |  | $
| |  |  |    |  |  | (B) |  | Annual Service Charge                                                                                                                                                    |  | $
| |  |  |    |  |  | (C) |  | Ratio of Consolidated Income Available for Debt
Service to Annual Service Charge                                                                                         |  |  
| |  |  |    |  |  |     |  |                                                                                                                                                                          |  |  
| |  |  | 3. |  |  | (A) |  | Total Assets                                                                                                                                                             |  | $
| |  |  |    |  |  | (B) |  | Maximum Secured Debt                                                                                                                                                     |  | $
| |  |  |    |  |  | (C) |  | Secured Debt                                                                                                                                                             |  | $



|VII. |  | The Parent hereby certifies the
following as to itself as of the end of
the period covered by the financial
statements dated           as
filed with the SEC:
|---- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------

|   |  |                  |  |  
|-- |  | ---------------- |  | -
|1. |  | Indebtedness     |  | $
|2. |  | Interest Expense |  | $



|VIII. |  | Check either (A) or (B)
|----- |  | -----------------------

| |  |      |  |                                                                                                                                                                                                                        
| |  | ---- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |  | [  ] |  | (A) The Parent has kept, observed, performed and
fulfilled each and every one of its obligations under the Agreement
during the period covered by the applicable financial statements.                                 
| |  |      |  |                                                                                                                                                                                                                        
| |  | [  ] |  | (B) The Parent has kept, observed, performed and
fulfilled each and every one of its obligations under the Agreement
during the period covered by the applicable financial statements
except for the following matters:

EXHIBIT A

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| |  |  |  |                                                                                                                                                               
| |  |  |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------
| |  |  |  | [Describe all such defaults, specifying the nature, duration and
status thereof and what action the Parent has taken or proposes to
take with respect thereto]

|      |  |       |  |                      
|----- |  | ----- |  | ---------------------
|Date: |  | Name: |  |                      
|      |  |       |  |                      
|      |  |       |  | [Vice President Name]

(A manually signed Officers Certificate is available at the request of any
Agent or Lender.)

EXHIBIT A

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POOL PROPERTY LIST

List each property separately showing the Historical Value and the
components, the city, the state, the Occupancy Level for the past three months,
the number of units, the age of the property and net operating income.

EXHIBIT A

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REQUEST FOR LOAN

Date: _______________, 2003

JPMorgan Chase Bank
712 Main Street
Houston, Texas 77002
(Agent)

|    |  |                                                                                                                                                                                                                                                               
|--- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|RE: |  | Request for Loan Under Amended and Restated Credit
Agreement (as amended from time to time, the Credit
Agreement) dated as of , 2003, among
Archstone-Smith Operating Trust (the Borrower), the Agent
and the Lenders as signatory to the Credit Agreement

Gentlemen:

Borrower hereby requests [check as applicable] o a conversion of an
existing Loan as provided below, and/or o an advance under the Credit
Agreement, which is allowed pursuant to Section 5.9 of the Credit Agreement, in
the amount of $            [minimum of $1,000,000.00 and in multiples of
$100,000.00].

| |  |                                                                                                       |  |   |                |   |  |  |  | 
| |  | ----------------------------------------------------------------------------------------------------- |  | - | -------------- | - |  |  |  | 
| |  | Maximum Principal Amount                                                                              |  | $ | 600,000,000.00 |  
|
| |  | Less the amount outstanding under the
Credit Agreement (including Swing Loans
and Money Market Loans) |  |   | ($.            | )
| |  | Less the LC Exposure                                                                                  |  |   | ($.            | )
| |  |                                                                                                       |  |   |                |   |  |  |  | 
| |  | Less the LC Exposure                                                                                  |  |   | ($.            | )
| |  |                                                                                                       |  |   |                |   |  |  |  | 
| |  | Available amount                                                                                      |  |   | $ .            |  
| |  |                                                                                                       |  |   |                |   |  |  |  | 
| |  | Less amount requested                                                                                 |  |   | ($.            | )
| |  |                                                                                                       |  |   |                |   |  |  |  | 
| |  | Amount remaining to be advanced                                                                       |  |   | $ .            |  

EXHIBIT B

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| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  | --------------------------------------------------- |  | -------------------------- |  | ------------------------------------------------------------------- |  |  | --- | 
| |  | The advance or conversion is to be made as follows: |  |                            |  |                                                                    
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  | A.                                                  |  | Base Rate Borrowing.       |  |                                                                     |  | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 1.                         |  | Amount of Base Rate Borrowing:                                      |  |  | $.  | 
| |  |                                                     |  | 2.                         |  | Date of Base Rate Borrowing                                         |  |  | ,20 | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  | B.                                                  |  | Eurodollar Rate Borrowing: |  |                                                                     |  | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 1.                         |  | Amount of Eurodollar Rate Borrowing:                                |  |  | $.  | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 2.                         |  | Amount of conversion of existing
Loan to Eurodollar Rate Borrowing: |  |  | $.  | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 3.                         |  | Number of Eurodollar Rate
Borrowing(s) now in effect:               |  |  |     | 
| |  |                                                     |  |                            |  | [cannot exceed 12]                                                  |  |  |     | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 4.                         |  | Date of Eurodollar Rate Borrowing
or conversion:                    |  |  | ,20 | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 5.                         |  | Interest Period:                                                    |  |  |     | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 6.                         |  | Expiration date of current Interest
Period as to this conversion:   |  |  | ,20 | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  | C.                                                  |  | Swing Loan.                |  |                                                                     |  | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 1.                         |  | Amount of Swing Loan:                                               |  |  | $.  | 
| |  |                                                     |  |                            |  | [minimum of $1,000,000.00 and in
multiples of $100,000.00]          |  |  |     | 
| |  |                                                     |  |                            |  |                                                                     |  |  |     | 
| |  |                                                     |  | 2.                         |  | Date of Swing Loan:                                                 |  |  | ,20 | 

EXHIBIT B

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Borrower hereby represents and warrants that the amounts set forth above
are true and correct, that the amount above requested has actually been
incurred, that the representations and warranties contained in the Credit
Agreement are true and correct as if made as of this date, and that Borrower
has kept, observed, performed and fulfilled each and every one of its
obligations under the Credit Agreement as of the date hereof [except as
follows:]

| |  |                                 |  | 
| |  | ------------------------------- |  | 
| |  | Very truly yours,              
| |  |                                 |  | 
| |  | ARCHSTONE-SMITH OPERATING TRUST
| |  |                                 |  | 
| |  | By:                             |  | 
| |  |                                 |  | 
| |  | Name:                           |  | 
| |  |                                 |  | 
| |  | Title:                          |  | 
| |  |                                 |  | 

EXHIBIT B

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|              |  |       
|------------- |  | ------
|$[          ] |  | , 2003

FOR VALUE RECEIVED ARCHSTONE-SMITH OPERATING TRUST, a Maryland real estate
investment trust (herein called Maker) promises to pay to the order of
[           ], a [     ](Payee), at
the offices of JPMorgan Chase Bank, a New York banking corporation, as Agent
under the Credit Agreement, at 712 Main Street, Houston, Texas 77002, or at
such other place as the holder (the Holder, whether or not Payee is such
holder) of this note may hereafter designate in writing, in immediately
available funds and in lawful money of the United States of America, the
principal sum of [     ]Dollars ($[     ]) (or
the unpaid balance of all principal advanced against this note, if that amount
is less), together with interest on the unpaid principal balance of this note
from time to time outstanding at the Stated Rate and interest on all past due
amounts, both principal and accrued interest, at the Past Due Rate; provided,
that for the full term of this note the interest rate produced by the aggregate
of all sums paid or agreed to be paid to the Holder of this note for the use,
forbearance or detention of the debt evidenced hereby (including, but not
limited to, all interest on this note at the Stated Rate) shall not exceed the
Ceiling Rate.

1.     Definitions. Any terms not defined herein shall have the meaning given
to them in the Amended and Restated Credit Agreement dated of even date
herewith among the Maker, the Agent and certain other Lenders (as the same may
be amended or modified the Credit Agreement).

2.     Rates Change Automatically and Without Notice. Without notice to Maker
or any other person or entity and to the full extent allowed by applicable law
from time to time in effect, the Prime Rate and the Ceiling Rate shall each
automatically fluctuate upward and downward as and in the amount by which
Agents said prime rate, and such maximum nonusurious rate of interest
permitted by applicable law, respectively, fluctuate.

3.     Calculation of Interest. Interest shall be computed for the actual
number of days elapsed in a year (up to 365, or 366 in a leap year) deemed to
consist of 360 days, unless the Ceiling Rate would thereby be exceeded, in
which event, to the extent necessary to avoid exceeding the Ceiling Rate,
interest shall be computed on the basis of the actual number of days elapsed in
the applicable calendar year in which it accrued.

4.     Excess Interest Will be Refunded or Credited. If, for any reason
whatever, the interest paid or received on this note during its full term
produces a rate which exceeds the Ceiling Rate, the Holder of this note shall
refund to the payor or, at the Holders option,

EXHIBIT C

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credit against the principal of this note such portion of that interest as
shall be necessary to cause the interest paid on this note to produce a rate
equal to the Ceiling Rate.

5.     Interest Will be Spread. All sums paid or agreed to be paid to the
Holder of this note for the use, forbearance or detention of the indebtedness
evidenced hereby, to the extent permitted by applicable law and to the extent
necessary to avoid violating applicable usury laws, shall be amortized,
prorated, allocated and spread in equal parts throughout the full term of this
note, so that the interest rate is uniform throughout the full term of this
note.

6.     Payment Schedule. The principal of this note shall be due and payable
on the Maturity Date. Accrued and unpaid interest shall be due and payable on
each Interest Payment Date. All payments shall be applied first to accrued
interest, the balance to principal.

7.     Prepayment. Maker may prepay this note only as provided in the Credit
Agreement.

8.     Revolving Credit. Upon and subject to the terms and conditions of the
Credit Agreement and the other provisions of this note, Maker may borrow, repay
and reborrow against this note at any time unless and until a default (however
designated) or event (an Event of Potential Default) which, if not cured
after notice or before the lapse of time (or both) would develop into a default
under this note, the Credit Agreement or any other Credit Documents has
occurred which the Holder has not declared to have been fully cured or waived,
and (except as the Credit Agreement or any of the other Credit Documents may
otherwise provide) there is no limit on the number of advances against this
note so long as the total unpaid principal of this note at any time outstanding
does not exceed the Payees Lender Commitment. Interest on the amount of each
advance against this note shall be computed on the amount of the unpaid balance
of that advance from the date it is made until the date it is repaid. If
Makers right (if any) to borrow against this note shall ever lapse because of
the occurrence of any default, it shall not be reinstated (or construed from
any course of conduct or otherwise to have been reinstated) unless and until
the Holder shall declare in a signed writing that it has been cured or waived.
The unpaid principal balance of this note at any time shall be the total of all
principal lent against this note to Maker or for Makers account less the sum
of all principal payments and permitted prepayments on this note received by
the Holder. Absent manifest error, the Holders computer records shall on any
day conclusively evidence the unpaid balance of this note and its advances and
payments history posted up to that day. All loans and advances and all
payments and permitted prepayments made on this note may be (but are not
required to be) endorsed by the Holder on the schedule attached hereto (which
is hereby made a part hereof for all purposes) or otherwise recorded in the
Holders computer

EXHIBIT C

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or manual records; provided, that any Holders failure to make notation of
(a) any principal advance or accrual of interest shall not cancel, limit or
otherwise affect Makers obligations or any Holders rights with respect to
that advance or accrual, or (b) any payment or permitted prepayment of
principal or interest shall not cancel, limit or otherwise affect Makers
entitlement to credit for that payment as of the date of its receipt by the
Holder. Maker and Payee expressly agree, as expressly allowed by Chapter 346
of the Texas Finance Code, that Chapter 346 (which relates to open-end line of
credit revolving loan accounts) shall not apply to this note or to any loan
evidenced by this note and that neither this note nor any such loan shall be
governed by Chapter 346 or subject to its provisions in any manner whatsoever.

9.     Credit Agreement. This note has been issued pursuant to the terms of
the Credit Agreement, to which reference is made for all purposes. Advances
against this note by Payee or other Holder hereof shall be governed by the
Credit Agreement. Payee is entitled to the benefits of the Credit Agreement.
As additional security for this note, Maker hereby grants to Payee and all
other present and future Holders an express lien against, security interest in
and contractual right of setoff in and to, all property and any and all
deposits (general or special, time or demand, provisional or final) at any time
held by the Payee or other Holder for any Makers credit or account.

10.     Defaults and Remedies. Time is of the essence. Makers failure to
pay any principal or accrued interest owing on this note when due and after
expiration of any applicable period for notice and right to cure such a default
which is specifically provided for in the Credit Agreement or any other
provision of this note, or the occurrence of any default under the Credit
Agreement or any other Credit Documents shall constitute default under this
note, whereupon the Holder may elect to exercise any or all rights, powers and
remedies afforded (a) under the Credit Agreement and all other papers related
to this note and (b) by law, including the right to accelerate the maturity of
this entire note.

In addition to and cumulative of such rights, the Holder is hereby
authorized at any time and from time to time after any such default, at
Holders option, without notice to Maker or any other person or entity (all
rights to any such notice being hereby waived), to set off and apply any and
all of any Makers deposits at any time held by the Holder, and any other debt
at any time owing by the Holder to or for the credit or account of any Maker,
against the outstanding balance of this note, in such order and manner as
Holder may elect in its sole discretion.

The Holders right to accelerate this note on account of any late payment
or other default shall not be waived or deemed waived by the Holder by reason
of the Holders having previously accepted one or more late payments or by
reason of any Holders otherwise not accelerating this note or exercising other
remedies for any default, and no Holder shall ever be obligated or deemed
obligated to notify Maker or any other person

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that Holder is requiring strict compliance with this note or any papers
securing or otherwise relating to it before such Holder may accelerate this
note or exercise any other remedy.

Nothing in this Section or elsewhere shall be construed as diminishing
Holders absolute right to demand payment of all or any part of this note at
any time.

11.     Legal Costs. If any Holder of this note retains an attorney in
connection with any such default or to collect, enforce or defend this note or
any papers intended to secure or guarantee it in any lawsuit or in any probate,
reorganization, bankruptcy or other proceeding, or if Maker sues any Holder in
connection with this note or any such papers and does not prevail, then Maker
agrees to pay to each such Holder, in addition to principal and interest, all
reasonable costs and expenses incurred by such Holder in trying to collect this
note or in any such suit or proceeding, including reasonable attorneys fees.

12.     Waivers. Except only for any notices which are specifically required
by the Credit Agreement, Maker and any and all co-makers, endorsers, guarantors
and sureties severally waive notice (including, but not limited to, notice of
intent to accelerate and notice of acceleration, notice of protest and notice
of dishonor), demand, presentment for payment, protest, diligence in collecting
and the filing of suit for the purpose of fixing liability and consent that the
time of payment hereof may be extended and re-extended from time to time
without notice to any of them. Each such person agrees that his, her or its
liability on or with respect to this note shall not be affected by any release
of or change in any guaranty or security at any time existing or by any failure
to perfect or maintain perfection of any lien against or security interest in
any such security or the partial or complete unenforceability of any guaranty
or other surety obligation, in each case in whole or in part, with or without
notice and before or after maturity.

13.     Rate of Return Maintenance Covenant. If at any time after the date of
this note, any Holder determines that (a) any applicable law, rule or
regulation regarding capital adequacy of general applicability has been adopted
or changed, or (b) its interpretation or administration by any governmental
authority, central bank or comparable agency has changed, and determines that
such change or the Holders compliance with any request or directive regarding
capital adequacy of general applicability (whether or not having the force of
law) of any such authority, central bank or comparable agency, has or would
have the effect of reducing the rate of return on the Holders capital as a
consequence of its obligations under this note or any related papers to a level
below that which the Holder could have achieved but for such adoption, change
or compliance (taking into consideration the Holders own capital adequacy
policies) by an amount the Holder deems to be material, then Maker promises to
pay from time to time to the order of the Holder such additional amount or
amounts as will compensate the Holder for such reduction. A certificate of any
Holder setting forth the amount or amounts necessary to compensate the Holder
as specified above shall be given to Maker as soon as practicable

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after the Holder has made such determination and shall be conclusive and
binding, absent manifest error. Maker shall pay the Holder the amount shown as
due on any such certificate within 15 days after the Holder gives it. In
preparing such certificate, the Holder may employ such assumptions and make
such allocations of costs and expenses as the Holder in good faith deems
reasonable and may use any reasonable averaging and attribution method.

14.     Governing Law, Jurisdiction and Venue. This note shall be governed by
and construed in accordance with the laws of the State of Texas and the United
States of America from time to time in effect.

15.     General Purpose of Loan. Maker warrants and represents to Payee and
all other Holders that all loans evidenced by this note are and will be for
business, commercial, investment or other similar purpose and not primarily for
personal, family, household or agricultural use.

16.     Participations and Assignments. Payee and each other Holder reserves
the right, exercisable in such Holders discretion and without notice to Maker
or any other person, to sell participations, assign interests or both, in all
or any part of this note or the debt evidenced by this note, in accordance with
the Credit Agreement.

17.     Limitation of Liability. No obligation or liability whatsoever of
Maker which may arise at any time under this promissory note or any obligation
or liability which may be incurred by it pursuant to any other instrument,
transaction or undertaking contemplated hereby shall be personally binding
upon, nor shall resort for the enforcement thereof be had to the private
property of, any of Makers trustees or shareholders regardless of whether such
obligation or liability is in the nature of contract, tort or otherwise.

| |  |                                 |  | 
| |  | ------------------------------- |  | 
| |  | ARCHSTONE-SMITH OPERATING TRUST
| |  |                                 |  | 
| |  | By:                             |  | 
| |  |                                 |  | 
| |  | Name:                           |  | 
| |  |                                 |  | 
| |  | Title:                          |  | 
| |  |                                 |  | 

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SWING LOAN NOTE

|                |  |       
|--------------- |  | ------
|$100,000,000.00 |  | , 2003

FOR VALUE RECEIVED ARCHSTONE-SMITH OPERATING TRUST, a Maryland real estate
investment trust (herein called Maker) promises to pay to the order of
JPMORGAN CHASE BANK, a New York banking corporation, at 712 Main Street,
Houston, Texas 77002, or at such other place as the holder (the Holder,
whether or not Payee is such holder) of this note may hereafter designate in
writing, in immediately available funds and in lawful money of the United
States of America, the principal sum of One Hundred Million Dollars
($100,000,000.00) (or the unpaid balance of all principal advanced against this
note, if that amount is less), together with interest on the unpaid principal
balance of this note from time to time outstanding at the Stated Rate and
interest on all past due amounts, both principal and accrued interest, at the
Past Due Rate; provided, that for the full term of this note the interest rate
produced by the aggregate of all sums paid or agreed to be paid to the Holder
of this note for the use, forbearance or detention of the debt evidenced hereby
(including, but not limited to, all interest on this note at the Stated Rate)
shall not exceed the Ceiling Rate.

1.     Definitions. Any terms not defined herein shall have the meaning given
to them in the Amended and Restated Credit Agreement dated of even date
herewith among the Maker, and certain other Lenders (as the same may be amended
or modified the Credit Agreement).

2.     Rates Change Automatically and Without Notice. Without notice to Maker
or any other person or entity and to the full extent allowed by applicable law
from time to time in effect, the Prime Rate and the Ceiling Rate shall each
automatically fluctuate upward and downward as and in the amount by which
Holders said prime rate, and such maximum nonusurious rate of interest
permitted by applicable law, respectively, fluctuate.

3.     Calculation of Interest. Interest shall be computed for the actual
number of days elapsed in a year (up to 365, or 366 in a leap year) deemed to
consist of 360 days, unless the Ceiling Rate would thereby be exceeded, in
which event, to the extent necessary to avoid exceeding the Ceiling Rate,
interest shall be computed on the basis of the actual number of days elapsed in
the applicable calendar year in which it accrued.

4.     Excess Interest Will be Refunded or Credited. If, for any reason
whatever, the interest paid or received on this note during its full term
produces a rate which exceeds the Ceiling Rate, the Holder of this note shall
refund to the payor or, at the Holders option, credit against the principal of
this note such portion of that interest as shall be necessary to cause the
interest paid on this note to produce a rate equal to the Ceiling Rate.

5.     Interest Will be Spread. All sums paid or agreed to be paid to the
Holder of this note for the use, forbearance or detention of the indebtedness
evidenced hereby, to the extent permitted by applicable law and to the extent
necessary to avoid violating applicable usury laws,

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shall be amortized, prorated, allocated and spread in equal parts
throughout the full term of this note, so that the interest rate is uniform
throughout the full term of this note.

6.     Payment Schedule. The principal of this note shall be due and payable
on the Revolving Credit Termination Date. Accrued and unpaid interest shall be
due and payable on each Interest Payment Date. All payments shall be applied
first to accrued interest, the balance to principal.

7.     Prepayment. Maker may prepay this note only as provided in the Credit
Agreement.

8.     Revolving Credit. Upon and subject to the terms and conditions of the
Credit Agreement and the other provisions of this note, Maker may borrow, repay
and reborrow against this note at any time unless and until a default (however
designated) or event (an Event of Potential Default) which, if not cured
after notice or before the lapse of time (or both) would develop into a default
under this note, the Credit Agreement or any other Credit Documents has
occurred which the Holder has not declared to have been fully cured or waived,
and (except as the Credit Agreement or any of the other Credit Documents may
otherwise provide) there is no limit on the number of advances against this
note so long as the total unpaid principal of this note at any time outstanding
does not exceed $100,000,000.00. Interest on the amount of each advance
against this note shall be computed on the amount of the unpaid balance of that
advance from the date it is made until the date it is repaid. If Makers right
(if any) to borrow against this note shall ever lapse because of the occurrence
of any default, it shall not be reinstated (or construed from any course of
conduct or otherwise to have been reinstated) unless and until the Holder shall
declare in a signed writing that it has been cured or waived. The unpaid
principal balance of this note at any time shall be the total of all principal
lent against this note to Maker or for Makers account less the sum of all
principal payments and permitted prepayments on this note received by the
Holder. Absent manifest error, the Holders computer records shall on any day
conclusively evidence the unpaid balance of this note and its advances and
payments history posted up to that day. All loans and advances and all
payments and permitted prepayments made on this note may be (but are not
required to be) endorsed by the Holder on the schedule attached hereto (which
is hereby made a part hereof for all purposes) or otherwise recorded in the
Holders computer or manual records; provided, that any Holders failure to
make notation of (a) any principal advance or accrual of interest shall not
cancel, limit or otherwise affect Makers obligations or any Holders rights
with respect to that advance or accrual, or (b) any payment or permitted
prepayment of principal or interest shall not cancel, limit or otherwise affect
Makers entitlement to credit for that payment as of the date of its receipt by
the Holder. Maker and Payee expressly agree, as expressly allowed by Chapter
346 of the Texas Finance Code, that Chapter 346 (which relates to open-end line
of credit revolving loan accounts) shall not apply to this note or to any loan
evidenced by this note and that neither this note nor any such loan shall be
governed by Chapter 346 or subject to its provisions in any manner whatsoever.

9.     Credit Agreement. This note has been issued pursuant to the terms of
the Credit Agreement, to which reference is made for all purposes. Advances
against this note by Payee or other Holder hereof shall be governed by the
Credit Agreement. Payee is entitled to the benefits

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of the Credit Agreement. As additional security for this note, Maker
hereby grants to Payee and all other present and future Holders an express lien
against, security interest in and contractual right of setoff in and to, all
property and any and all deposits (general or special, time or demand,
provisional or final) at any time held by the Payee or other Holder for any
Makers credit or account.

10.     Defaults and Remedies. Time is of the essence. Makers failure to
pay any principal or accrued interest owing on this note when due and after
expiration of any applicable period for notice and right to cure such a default
which is specifically provided for in the Credit Agreement or any other
provision of this note, or the occurrence of any default under the Credit
Agreement or any other Credit Documents shall constitute default under this
note, whereupon the Holder may elect to exercise any or all rights, powers and
remedies afforded (a) under the Credit Agreement and all other papers related
to this note and (b) by law, including the right to accelerate the maturity of
this entire note.

In addition to and cumulative of such rights, the Holder is hereby
authorized at any time and from time to time after any such default, at
Holders option, without notice to Maker or any other person or entity (all
rights to any such notice being hereby waived), to set off and apply any and
all of any Makers deposits at any time held by the Holder, and any other debt
at any time owing by the Holder to or for the credit or account of any Maker,
against the outstanding balance of this note, in such order and manner as
Holder may elect in its sole discretion.

The Holders right to accelerate this note on account of any late payment
or other default shall not be waived or deemed waived by the Holder by reason
of the Holders having previously accepted one or more late payments or by
reason of any Holders otherwise not accelerating this note or exercising other
remedies for any default, and no Holder shall ever be obligated or deemed
obligated to notify Maker or any other person that Holder is requiring strict
compliance with this note or any papers securing or otherwise relating to it
before such Holder may accelerate this note or exercise any other remedy.

Nothing in this Section or elsewhere shall be construed as diminishing
Holders absolute right to demand payment of all or any part of this note at
any time.

11.     Legal Costs. If any Holder of this note retains an attorney in
connection with any such default or to collect, enforce or defend this note or
any papers intended to secure or guarantee it in any lawsuit or in any probate,
reorganization, bankruptcy or other proceeding, or if Maker sues any Holder in
connection with this note or any such papers and does not prevail, then Maker
agrees to pay to each such Holder, in addition to principal and interest, all
reasonable costs and expenses incurred by such Holder in trying to collect this
note or in any such suit or proceeding, including reasonable attorneys fees.

12.     Waivers. Except only for any notices which are specifically required
by the Credit Agreement, Maker and any and all co-makers, endorsers, guarantors
and sureties severally waive notice (including, but not limited to, notice of
intent to accelerate and notice of acceleration, notice of protest and notice
of dishonor), demand, presentment for payment,

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protest, diligence in collecting and the filing of suit for the purpose of
fixing liability and consent that the time of payment hereof may be extended
and re-extended from time to time without notice to any of them. Each such
person agrees that his, her or its liability on or with respect to this note
shall not be affected by any release of or change in any guaranty or security
at any time existing or by any failure to perfect or maintain perfection of any
lien against or security interest in any such security or the partial or
complete unenforceability of any guaranty or other surety obligation, in each
case in whole or in part, with or without notice and before or after maturity.

13.     Rate of Return Maintenance Covenant. If at any time after the date of
this note, any Holder determines that (a) any applicable law, rule or
regulation regarding capital adequacy of general applicability has been adopted
or changed, or (b) its interpretation or administration by any governmental
authority, central bank or comparable agency has changed, and determines that
such change or the Holders compliance with any request or directive regarding
capital adequacy of general applicability (whether or not having the force of
law) of any such authority, central bank or comparable agency, has or would
have the effect of reducing the rate of return on the Holders capital as a
consequence of its obligations under this note or any related papers to a level
below that which the Holder could have achieved but for such adoption, change
or compliance (taking into consideration the Holders own capital adequacy
policies) by an amount the Holder deems to be material, then Maker promises to
pay from time to time to the order of the Holder such additional amount or
amounts as will compensate the Holder for such reduction. A certificate of any
Holder setting forth the amount or amounts necessary to compensate the Holder
as specified above shall be given to Maker as soon as practicable after the
Holder has made such determination and shall be conclusive and binding, absent
manifest error. Maker shall pay the Holder the amount shown as due on any such
certificate within 15 days after the Holder gives it. In preparing such
certificate, the Holder may employ such assumptions and make such allocations
of costs and expenses as the Holder in good faith deems reasonable and may use
any reasonable averaging and attribution method.

14.     Governing Law, Jurisdiction and Venue. This note shall be governed by
and construed in accordance with the laws of the State of Texas and the United
States of America from time to time in effect.

15.     General Purpose of Loan. Maker warrants and represents to Payee and
all other Holders that all loans evidenced by this note are and will be for
business, commercial, investment or other similar purpose and not primarily for
personal, family, household or agricultural use.

16.     Participations and Assignments. Payee and each other Holder reserves
the right, exercisable in such Holders discretion and without notice to Maker
or any other person, to sell participations, assign interests or both, in all
or any part of this note or the debt evidenced by this note, in accordance with
the Credit Agreement.

17.     Limitation of Liability. No obligation or liability whatsoever of
Maker which may arise at any time under this promissory note or any obligation
or liability which may be incurred by it pursuant to any other instrument,
transaction or undertaking contemplated hereby shall be personally binding
upon, nor shall resort for the enforcement thereof be had to the

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private property of, any of Makers trustees or shareholders regardless of
whether such obligation or liability is in the nature of contract, tort or
otherwise.

| |  |                                 |  | 
| |  | ------------------------------- |  | 
| |  | ARCHSTONE-SMITH OPERATING TRUST
| |  |                                 |  | 
| |  | By:                             |  | 
| |  |                                 |  | 
| |  | Name:                           |  | 
| |  |                                 |  | 
| |  | Title:                          |  | 
| |  |                                 |  | 

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MASTER NOTE
Money Market Borrowings

|                |  |       
|--------------- |  | ------
|$300,000,000.00 |  | , 2003

FOR VALUE RECEIVED ARCHSTONE-SMITH OPERATING TRUST, a Maryland real estate
investment trust (herein called Maker) promises to pay to the order of            (Payee),
at the offices
of JPMorgan Chase Bank, a New York banking
corporation, as Agent under the Credit Agreement, at 712 Main Street,
Houston, Texas 77002, or at such other place as the holder (the Holder,
whether or not Payee is such holder) of this note may hereafter designate in
writing, in immediately available funds and in lawful money of the United
States of America, the principal sum of Three Hundred Million Dollars
($300,000,000.00) (or the unpaid balance of all principal advanced against this
note, if that amount is less), together with interest on the unpaid principal
balance of this note from time to time outstanding at the Stated Rate for Money
Market Loans and interest on all past due amounts, both principal and accrued
interest, at the Past Due Rate; provided, that for the full term of this note
the interest rate produced by the aggregate of all sums paid or agreed to be
paid to the Holder of this note for the use, forbearance or detention of the
debt evidenced hereby (including, but not limited to, all interest on this note
at the Stated Rate for Money Market Loans) shall not exceed the Ceiling Rate.

1.     Definitions. Any terms not defined herein shall have the meaning given
to them in the Amended and Restated Credit Agreement dated of even date
herewith among the Maker, the Agent and certain other Lenders (as the same has
been and may be further amended or modified the Credit Agreement).

2.     Rates Change Automatically and Without Notice. Without notice to Maker
or any other person or entity and to the full extent allowed by applicable law
from time to time in effect, the Prime Rate and the Ceiling Rate shall each
automatically fluctuate upward and downward as and in the amount by which
Agents said prime rate, and such maximum nonusurious rate of interest
permitted by applicable law, respectively, fluctuate.

3.     Calculation of Interest. Interest shall be computed for the actual
number of days elapsed in a year (up to 365, or 366 in a leap year) deemed to
consist of 360 days, unless the Ceiling Rate would thereby be exceeded, in
which event, to the extent necessary to avoid exceeding the Ceiling Rate,
interest shall be computed on the basis of the actual number of days elapsed in
the applicable calendar year in which it accrued.

4.     Excess Interest Will be Refunded or Credited. If, for any reason
whatever, the interest paid or received on this note during its full term
produces a rate which exceeds the Ceiling Rate, the Holder of this note shall
refund to the payor or, at the Holders option, credit

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against the principal of this note such portion of that interest as shall
be necessary to cause the interest paid on this note to produce a rate equal to
the Ceiling Rate.

5.     Interest Will be Spread. All sums paid or agreed to be paid to the
Holder of this note for the use, forbearance or detention of the indebtedness
evidenced hereby, to the extent permitted by applicable law and to the extent
necessary to avoid violating applicable usury laws, shall be amortized,
prorated, allocated and spread in equal parts throughout the full term of this
note, so that the interest rate is uniform throughout the full term of this
note.

6.     Payment Schedule. The principal of this note shall be due and payable
on the date set forth in each Notice of Money Market Borrowing with respect to
the principal borrowed pursuant to said Notice, and the Maturity Date. Accrued
and unpaid interest shall be due and payable on each Interest Payment Date.
All payments shall be applied first to accrued interest, the balance to
principal.

7.     Prepayment. Maker may prepay this note only as provided in the Credit
Agreement.

8.     Revolving Credit. Upon and subject to the terms and conditions of the
Credit Agreement and the other provisions of this note, Maker may borrow, repay
and reborrow against this note at any time unless and until a default (however
designated) or event (an Event of Potential Default) which, if not cured
after notice or before the lapse of time (or both) would develop into a default
under this note, the Credit Agreement or any other Credit Documents has
occurred which the Holder has not declared to have been fully cured or waived,
and (except as the Credit Agreement or any of the other Credit Documents may
otherwise provide) there is no limit on the number of advances against this
note so long as the total unpaid principal of this note at any time outstanding
does not exceed $300,000,000.00. Interest on the amount of each advance
against this note shall be computed on the amount of the unpaid balance of that
advance from the date it is made until the date it is repaid. If Makers right
(if any) to borrow against this note shall ever lapse because of the occurrence
of any default, it shall not be reinstated (or construed from any course of
conduct or otherwise to have been reinstated) unless and until the Holder shall
declare in a signed writing that it has been cured or waived. The unpaid
principal balance of this note at any time shall be the total of all principal
lent against this note to Maker or for Makers account less the sum of all
principal payments and permitted prepayments on this note received by the
Holder. Absent manifest error, the Holders computer records shall on any day
conclusively evidence the unpaid balance of this note and its advances and
payments history posted up to that day. All loans and advances and all
payments and permitted prepayments made on this note may be (but are not
required to be) endorsed by the Holder on the schedule attached hereto (which
is hereby made a part hereof for all purposes) or otherwise recorded in the
Holders computer or manual records; provided, that any Holders failure to
make notation of (a) any principal advance or accrual of interest shall not
cancel, limit or otherwise affect Makers obliga-

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tions or any Holders rights with respect to that advance or accrual, or
(b) any payment or permitted prepayment of principal or interest shall not
cancel, limit or otherwise affect Makers entitlement to credit for that
payment as of the date of its receipt by the Holder. Maker and Payee expressly
agree, as expressly allowed by Chapter 346 of the Texas Finance Code, that
Chapter 346 (which relates to open-end line of credit revolving loan accounts)
shall not apply to this note or to any loan evidenced by this note and that
neither this note nor any such loan shall be governed by Chapter 346 or subject
to its provisions in any manner whatsoever.

9.     Credit Agreement. This note has been issued pursuant to the terms of
Section 2.8 of the Credit Agreement, to which reference is made for all
purposes. Advances against this note by Payee or other Holder hereof shall be
governed by the Credit Agreement. Payee is entitled to the benefits of the
Credit Agreement. As additional security for this note, Maker hereby grants to
Payee and all other present and future Holders an express lien against,
security interest in and contractual right of setoff in and to, all property
and any and all deposits (general or special, time or demand, provisional or
final) at any time held by the Payee or other Holder for any Makers credit or
account.

10.     Defaults and Remedies. Time is of the essence. Makers failure to
pay any principal or accrued interest owing on this note when due and after
expiration of any applicable period for notice and right to cure such a default
which is specifically provided for in the Credit Agreement or any other
provision of this note, or the occurrence of any default under the Credit
Agreement or any other Credit Documents shall constitute default under this
note, whereupon the Holder may elect to exercise any or all rights, powers and
remedies afforded (a) under the Credit Agreement and all other papers related
to this note and (b) by law, including the right to accelerate the maturity of
this entire note.

In addition to and cumulative of such rights, the Holder is hereby
authorized at any time and from time to time after any such default, at
Holders option, without notice to Maker or any other person or entity (all
rights to any such notice being hereby waived), to set off and apply any and
all of any Makers deposits at any time held by the Holder, and any other debt
at any time owing by the Holder to or for the credit or account of any Maker,
against the outstanding balance of this note, in such order and manner as
Holder may elect in its sole discretion.

The Holders right to accelerate this note on account of any late payment
or other default shall not be waived or deemed waived by the Holder by reason
of the Holders having previously accepted one or more late payments or by
reason of any Holders otherwise not accelerating this note or exercising other
remedies for any default, and no Holder shall ever be obligated or deemed
obligated to notify Maker or any other person that Holder is requiring strict
compliance with this note or any papers securing or otherwise relating to it
before such Holder may accelerate this note or exercise any other remedy.

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Nothing in this Section or elsewhere shall be construed as diminishing
Holders absolute right to demand payment of all or any part of this note at
any time.

11.     Legal Costs. If any Holder of this note retains an attorney in
connection with any such default or to collect, enforce or defend this note or
any papers intended to secure or guarantee it in any lawsuit or in any probate,
reorganization, bankruptcy or other proceeding, or if Maker sues any Holder in
connection with this note or any such papers and does not prevail, then Maker
agrees to pay to each such Holder, in addition to principal and interest, all
reasonable costs and expenses incurred by such Holder in trying to collect this
note or in any such suit or proceeding, including reasonable attorneys fees.

12.     Waivers. Except only for any notices which are specifically required
by the Credit Agreement, Maker and any and all co-makers, endorsers, guarantors
and sureties severally waive notice (including, but not limited to, notice of
intent to accelerate and notice of acceleration, notice of protest and notice
of dishonor), demand, presentment for payment, protest, diligence in collecting
and the filing of suit for the purpose of fixing liability and consent that the
time of payment hereof may be extended and re-extended from time to time
without notice to any of them. Each such person agrees that his, her or its
liability on or with respect to this note shall not be affected by any release
of or change in any guaranty or security at any time existing or by any failure
to perfect or maintain perfection of any lien against or security interest in
any such security or the partial or complete unenforceability of any guaranty
or other surety obligation, in each case in whole or in part, with or without
notice and before or after maturity.

13.     Rate of Return Maintenance Covenant. If at any time after the date of
this note, any Holder determines that (a) any applicable law, rule or
regulation regarding capital adequacy of general applicability has been adopted
or changed, or (b) its interpretation or administration by any governmental
authority, central bank or comparable agency has changed, and determines that
such change or the Holders compliance with any request or directive regarding
capital adequacy of general applicability (whether or not having the force of
law) of any such authority, central bank or comparable agency, has or would
have the effect of reducing the rate of return on the Holders capital as a
consequence of its obligations under this note or any related papers to a level
below that which the Holder could have achieved but for such adoption, change
or compliance (taking into consideration the Holders own capital adequacy
policies) by an amount the Holder deems to be material, then Maker promises to
pay from time to time to the order of the Holder such additional amount or
amounts as will compensate the Holder for such reduction. A certificate of any
Holder setting forth the amount or amounts necessary to compensate the Holder
as specified above shall be given to Maker as soon as practicable after the
Holder has made such determination and shall be conclusive and binding, absent
manifest error. Maker shall pay the Holder the amount shown as due on any such
certificate within 15 days after the Holder gives it. In preparing such
certificate, the Holder may employ such assumptions and make such allocations
of costs and expenses as the Holder in good faith deems reasonable and may use
any reasonable averaging and attribution method.

EXHIBIT C-2

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14.     Governing Law, Jurisdiction and Venue. This note shall be governed by
and construed in accordance with the laws of the State of Texas and the United
States of America from time to time in effect.

15.     General Purpose of Loan. Maker warrants and represents to Payee and
all other Holders that all loans evidenced by this note are and will be for
business, commercial, investment or other similar purpose and not primarily for
personal, family, household or agricultural use.

16.     Participations and Assignments. Payee and each other Holder reserves
the right, exercisable in such Holders discretion and without notice to Maker
or any other person, to sell participations, assign interests or both, in all
or any part of this note or the debt evidenced by this note, in accordance with
the Credit Agreement.

17.     Limitation of Liability. No obligation or liability whatsoever of
Maker which may arise at any time under this promissory note or any obligation
or liability which may be incurred by it pursuant to any other instrument,
transaction or undertaking contemplated hereby shall be personally binding
upon, nor shall resort for the enforcement thereof be had to the private
property of, any of Makers trustees or shareholders regardless of whether such
obligation or liability is in the nature of contract, tort or otherwise.

| |  |                                 |  | 
| |  | ------------------------------- |  | 
| |  | ARCHSTONE-SMITH OPERATING TRUST
| |  |                                 |  | 
| |  | By:                             |  | 
| |  |                                 |  | 
| |  | Name:                           |  | 
| |  |                                 |  | 
| |  | Title:                          |  | 
| |  |                                 |  | 

EXHIBIT C-2

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Form of Money Market Quote Request

|      |  |                                                                                                                                                
|----- |  | -----------------------------------------------------------------------------------------------------------------------------------------------
|To:   |  | JPMorgan Chase Bank (the Agent)                                                                                                              
|      |  |                                                                                                                                                
|From: |  | Archstone-Smith Operating Trust (the Borrower)                                                                                               
|      |  |                                                                                                                                                
|Re:   |  | Amended and Restated Credit Agreement (the Credit Agreement),
dated      , 2003 among the Borrower, the Lenders parties
thereto and the Agent

We hereby give notice pursuant to Section 2.8 of the Credit Agreement that
we request Money Market Quotes for the following proposed Money Market Loan(s):

Date of Borrowing:

|                 |  |                 |  | 
|---------------- |  | --------------- |  | 
|Principal Amount |  | Interest Period
|                 |  |                
|$               

Such Money Market Quotes should offer a Money Market [Margin] [Absolute
Rate]. [The applicable base rate is the Adjusted Eurodollar Interbank Rate].

The funding of Money Market Loans made in connection with this Money
Market Quote Request [may/may not] be made by Designated Lenders.

Terms used herein have the meanings assigned to them in the Credit
Agreement.

| |  |                                 |  |        |  | 
| |  | ------------------------------- |  | ------ |  | 
| |  | ARCHSTONE-SMITH OPERATING TRUST
| |  |                                 |  |        |  | 
| |  | By:                             |  |        |  | 
| |  |                                 |  |       
| |  |                                 |  | Name:  |  | 
| |  |                                 |  |        |  | 
| |  |                                 |  | Title: |  | 
| |  |                                 |  |        |  | 

Amount must be $20,000,000 or a larger multiple of $1,000,000.

Not less than one month (LIBOR Auction) or not less than 30 days (Absolute Rate
Auction), subject to the provisions of the definition of Interest Period.

EXHIBIT E

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EXHIBIT F

Form of Invitation for Money Market Quotes

|    |  |                                                                                       
|--- |  | --------------------------------------------------------------------------------------
|To: |  | [Name of Lender]                                                                      
|    |  |                                                                                       
|RE: |  | Invitation for Money Market Quotes to Archstone-Smith Operating Trust
(the Borrower)

Pursuant to Section 2.8 of the Amended and Restated Credit Agreement dated
     , 2003 among the Borrower, the Lenders parties thereto and the
undersigned, as Agent, we are pleased on behalf of the Borrower to invite you
to submit Money Market Quotes to the Borrower for the following proposed Money
Market Loan(s):

Date of Borrowing:

|                 |  |                 |  | 
|---------------- |  | --------------- |  | 
|Principal Amount |  | Interest Period
|                 |  |                
|$               

Such Money Market Quotes should offer a Money Market [Margin] [Absolute
Rate]. [The applicable base rate is the Adjusted Eurodollar Interbank Rate.]

Please respond to this invitation by no later than      A.M. (New
York, New York time) on [date].

| |  |                      |  |                   
| |  | -------------------- |  | ------------------
| |  | JPMORGAN CHASE BANK,
| |  | as Agent            
| |  |                      |  |                   
| |  | By:                  |  |                   
| |  |                      |  |                   
| |  |                      |  | Authorized Officer

EXHIBIT F

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Form of Money Market Quote

|    |  |                                                                       
|--- |  | ----------------------------------------------------------------------
|To: |  | JPMorgan Chase Bank, as Agent                                         
|    |  |                                                                       
|RE: |  | Money Market Quote to Archstone-Smith Operating Trust (the Borrower)

In response to your invitation on behalf of the Borrower dated
, 200     , we hereby make the following Money Market Quote on
the following terms:



|1. |  | Quoting Bank:                                                                                                                               
|-- |  | --------------------------------------------------------------------------------------------------------------------------------------------
|  
|2. |  | Person to contact at Quoting Bank:                                                                                                          
|  
|3. |  | We hereby offer to make Money Market Loan(s) in the following principal
amounts, for the following Interest Periods and the following rates:

|          |  |          |  |                          |  |  |  | 
|--------- |  | -------- |  | ------------------------ |  |  |  | 
|Principal |  | Interest |  | Money Market            
|Amount    |  | Period   |  | [Margin] [Absolute Rate] | 
|          |  |          |  |                         
|$        
|         
|$        



| |  | [Provided, that the aggregate principal amount of Money Market Loans for
which the above offers may be accepted shall not exceed
$     .]
| |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |                                                                                                                                                                                                                                                                                                                                                                                      
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | We understand and agree that the offer(s) set forth above, subject
to the satisfaction of the applicable conditions set forth in the Amended
and Restated Credit Agreement dated
, 2003 among the
Borrower, the Lenders parties thereto and yourselves, as Agent,
irrevocably obligates us to make the Money Market Loan(s) for which any
offer(s) are accepted, in whole or in part.

|       |  |                   |  |                   
|------ |  | ----------------- |  | ------------------
|       |  | Very truly yours,
|       |  |                   |  |                   
|       |  | [NAME OF LENDER] 
|       |  |                   |  |                   
|Dated: |  | By:               |  |                   
|       |  |                   |  |                   
|       |  |                   |  | Authorized Officer

EXHIBIT G

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Form of Designation Agreement

Dated
, 200__

Reference is made to that certain Amended and Restated Credit Agreement
dated
, 2003 (as amended, supplemented or otherwise modified from
time to time, the Credit Agreement) among ARCHSTONE-SMITH OPERATING TRUST,
the Lenders parties thereto, and JPMORGAN CHASE BANK (the Agent), as Agent.
Terms defined in the Credit Agreement are used herein with the same meaning.

[NAME OF DESIGNOR] (the Designor), [NAME OF DESIGNEE] (the Designee),
the Agent and Borrower agree as follows:

1.     The Designor hereby designates the Designee, and the Designee hereby
accepts such designation, to have a right to make Money Market Loans pursuant
to Section 2.8 of the Credit Agreement. Any assignment by Designor to Designee
of its rights to make a Money Market Loan pursuant to such Section 2.8 shall be
effective at the time of the funding of such Money Market Loan and not before
such time.

2.     Except as set forth in Section 7 below, the Designor makes no
representation or warranty and assumes no responsibility pursuant to this
Designation Agreement with respect to (a) any statements, warranties or
representations made in or in connection with any Credit Document or the
execution, legality, validity, enforceability, genuineness, sufficiency or
value of any Credit Document or any other instrument and document furnished
pursuant thereto and (b) the financial condition of the Borrower or the
performance or observance by the Borrower of any of its obligations under any
Credit Document or any other instrument or document furnished pursuant thereto.

3.     The Designee (a) confirms that it has received a copy of each Credit
Document, together with copies of the financial statements referred to in
Section 5.2 of the Credit Agreement and such other documents and information as
it has deemed appropriate to make its own credit analysis and decision to enter
into this Designation Agreement; (b) agrees that it will independently and
without reliance upon the Agent, the Designor or any other Lender and based on
such documents and information as it shall deem appropriate at the time,
continue to make its own credit decisions in taking or not taking action under
any Credit Document; (c) confirms that it is a Designated Lender; (d) appoints
and authorizes the Agent to take such action as agent on its behalf and to
exercise such powers and discretion under any Credit Document as are delegated
to the Agent by the terms thereof, together with such powers and discretion as
are reasonably incidental thereto; and (e) agrees to be bound by each and every
provision of each Credit Document and further agrees that it will perform in
accordance with their terms all of the obligations which by the terms of any
Credit Document are required to be performed by it as a Lender.

4.     The Designee hereby appoints Designor as Designees agent and attorney
in fact, and grants to Designor an irrevocable power of attorney, to receive
payments made for the

EXHIBIT H
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benefit of Designee under the Credit Agreement, to deliver and receive all
communications and notices under the Credit Agreement and other Credit
Documents and to exercise on Designees behalf all rights to vote and to grant
and make approvals, waivers, consents or amendments to or under the Credit
Agreement or other Credit Documents. Any document executed by the Designor on
the Designees behalf in connection with the Credit Agreement or other Credit
Documents shall be binding on the Designee. The Borrower, the Agent and each
of the Lenders may rely on and are beneficiaries of the preceding provisions.

5.     Following the execution of this Designation Agreement by the Designor
and its Designee, it will be delivered to the Agent for acceptance by the
Agent. The effective date for this Designation Agreement (the Effective
Date) shall be the date of acceptance hereof by the Agent, unless otherwise
specified on the signature page hereto.

6.     The Agent hereby agrees that it will not institute against any Designee
or join any other Person in instituting against any Designee any bankruptcy,
reorganization, arrangement, insolvency or liquidation proceeding under any
federal or state bankruptcy or similar law, until the later to occur of (i) one
year and one day after the payment in full of the latest maturing commercial
paper note issued by such Designee and (ii) the Revolving Credit Termination
Date.

7.     The Designor unconditionally agrees to pay or reimburse the Designee
and save the Designee harmless against all liabilities, obligations, losses,
damages, penalties, actions and judgments, suits, costs, expenses or
disbursements of any kind or nature whatsoever which may be imposed or asserted
by any of the parties to the Credit Documents against the Designee, in its
capacity as such, in any way relating to or arising out of this Designation
Agreement or any other Credit Documents or any action taken or omitted by the
Designee hereunder or thereunder, INCLUDING THE NEGLIGENCE OF THE DESIGNEE
provided that the Designor shall not be liable for any portion of such
liabilities, obligations, losses, damages, penalties, actions, judgments,
suits, costs, expenses or disbursements if the same results from the Designees
gross negligence or willful misconduct.

8.     As of the Effective Date the Designee shall be a party to the Credit
Agreement with a right (subject to the provisions of Section 2.8(b)) to make
Money Market Loans as a Lender pursuant to Section 2.8 of the Credit Agreement
and the rights and obligations of a Lender related thereto; provided, however,
that the Designee shall not be required to make payments with respect to such
obligations except to the extent of excess cash flow of such Designee which is
not otherwise required to repay obligations of such Designee, which are then
due and payable. Notwithstanding the foregoing, the Designor, as
administrative agent for the Designee, shall be and remain obligated to the
Borrower, the Agent and the Lenders for each and every one of the obligations
of the Designee and its Designor with respect to the Credit Agreement,
including, without limitation, any indemnification obligations under Section
8.5 of the Credit Agreement and any sums otherwise payable to the Borrower by
the Designee.

9.     This Designation Agreement shall be governed by, and construed in
accordance with, the laws of the State of Texas.

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10.     This Designation Agreement may be executed in any number of
counterparts and by different parties hereto in separate counterparts, each of
which when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement. Delivery of an executed
counterpart of a signature page to this Designation Agreement by facsimile
transmission shall be effective as delivery of a manually executed counterpart
of this Designation Agreement.

IN WITNESS WHEREOF, the Designor and the Designee, intending to be legally
bound, have caused this Designation Agreement to be executed by their officers
thereunto duly authorized as of the date first above written.

Effective Date:,
200

| |  |                                                      |  | 
| |  | ---------------------------------------------------- |  | 
| |  | [NAME OF DESIGNOR], as Designor                     
| |  |                                                      |  | 
| |  | By:                                                  |  | 
| |  |                                                      |  | 
| |  | Title:                                               |  | 
| |  |                                                      |  | 
| |  |                                                      |  | 
| |  | [NAME OF DESIGNEE], as Designee                     
| |  |                                                      |  | 
| |  | By:                                                  |  | 
| |  |                                                      |  | 
| |  | Title:                                               |  | 
| |  |                                                      |  | 
| |  |                                                      |  | 
| |  | Applicable Lending Office
(and address for notices):
| |  |                                                      |  | 
| |  | [Address]                                           

Accepted this _____ day of
______________, 200__

JPMORGAN CHASE BANK, as Agent

|       |  |  | 
|------ |  |  | 
|By:    |  |  | 
|       |  |  | 
|Name:  |  |  | 
|       |  |  | 
|Title: |  |  | 
|       |  |  | 

EXHIBIT HPage 3 of 3





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FORM OF GUARANTY

THIS
GUARANTY dated as of
, 2003 executed and delivered by
each of the undersigned, whether one or more, (all each a Guarantor and
collectively, the Guarantors), in favor of (a) JPMORGAN CHASE BANK, in its
capacity as Agent (the Agent) for the Lenders under that certain Amended and
Restated Credit Agreement dated as of October 30, 2003 by and among
ARCHSTONE-SMITH OPERATING TRUST (the Borrower), the financial institutions
party thereto and their assignees in accordance therewith (the Lenders), and
the Agent (as the same may be amended, restated, supplemented or otherwise
modified from time to time in accordance with its terms, the Credit
Agreement) and (b) the Lenders.

WHEREAS, pursuant to the Credit Agreement, the Lenders have made available
to the Borrower certain financial accommodations on the terms and conditions
set forth in the Credit Agreement;

WHEREAS, each Guarantor is a wholly-owned Subsidiary of the Borrower;

WHEREAS, the Borrower, each Guarantor and the other Subsidiaries of the
Borrower, though separate legal entities, are mutually dependent on each other
in the conduct of their respective businesses as an integrated operation and
have determined it to be in their mutual best interests to obtain financing
from the Agent and the Lenders through their collective efforts;

WHEREAS, each Guarantor acknowledges that it will receive direct and
indirect benefits from the Agent and the Lenders making such financial
accommodations available to the Borrower under the Credit Agreement and,
accordingly, each Guarantor is willing to guarantee the Borrowers obligations
to the Agent and the Lenders on the terms and conditions contained herein; and

WHEREAS, each Guarantors execution and delivery of this Guaranty is one
of the conditions precedent to the Agent and the Lenders making, or continuing
to make, such financial accommodations to the Borrower.

NOW, THEREFORE, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged by each Guarantor, each Guarantor
agrees as follows:

Section 1. Guaranty. Each Guarantor hereby absolutely and
unconditionally guaranties the due and punctual payment and performance of all
of the following (collectively referred to as the Obligations): (a) all
indebtedness and obligations owing by the Borrower to any of the Lenders or the
Agent under or in connection with the Credit Agreement and any other Credit
Document, including without limitation, the repayment of all principal of the
Loans made by the Lenders to the Borrower under the Credit Agreement and the
payment of all interest, fees, charges, reasonable attorneys fees and other
amounts payable to any Lender or the Agent thereunder or in connection
therewith; (b) any and all extensions, renewals, modifications, amendments or
substitutions of the foregoing; and (c) all expenses, including, without
limitation,

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reasonable attorneys fees and disbursements, that are incurred by the
Lenders or the Agent in the enforcement of any of the foregoing or any
obligation of such Guarantor hereunder.

Section 2. Guaranty of Payment and Not of Collection. This Guaranty is a
guaranty of payment, and not of collection, and a debt of each Guarantor for
its own account. Accordingly, the Lenders and the Agent shall not be obligated
or required before enforcing this Guaranty against any Guarantor: (a) to pursue
any right or remedy the Lenders or the Agent may have against the Borrower, any
other Guarantor or any other Person or commence any suit or other proceeding
against the Borrower, any other Guarantor or any other Person in any court or
other tribunal; (b) to make any claim in a liquidation or bankruptcy of the
Borrower, any other Guarantor or any other Person; or (c) to make demand of the
Borrower, any other Guarantor or any other Person or to enforce or seek to
enforce or realize upon any collateral security held by the Lenders or the
Agent which may secure any of the Obligations. In this connection, each
Guarantor hereby waives the right of such Guarantor to require any holder of
the Obligations to take action against the Borrower as provided by any Legal
Requirement.

Section 3. Guaranty Absolute. Each Guarantor guarantees that the
Obligations will be paid strictly in accordance with the terms of the documents
evidencing the same, regardless of any Legal Requirement now or hereafter in
effect in any jurisdiction affecting any of such terms or the rights of the
Agent or the Lenders with respect thereto. The liability of each Guarantor
under this Guaranty shall be absolute and unconditional in accordance with its
terms and shall remain in full force and effect without regard to, and shall
not be released, suspended, discharged, terminated or otherwise affected by,
any circumstance or occurrence whatsoever, including without limitation, the
following (whether or not such Guarantor consents thereto or has notice
thereof):

(a)  (i) any change in the amount, interest rate or due date or other term
of any of the Obligations, (ii) any change in the time, place or manner of
payment of all or any portion of the Obligations, (iii) any amendment or waiver
of, or consent to the departure from or other indulgence with respect to, the
Credit Agreement, any other Credit Document, or any other document or
instrument evidencing or relating to any Obligations, or (iv) any waiver,
renewal, extension, addition, or supplement to, or deletion from, or any other
action or inaction under or in respect of, the Credit Agreement, any of the
other Credit Documents, or any other documents, instruments or agreements
relating to the Obligations or any other instrument or agreement referred to
therein or evidencing any Obligations or any assignment or transfer of any of
the foregoing;

(b)  any lack of validity or enforceability of the Credit Agreement, any of
the other Credit Documents, or any other document, instrument or agreement
referred to therein or evidencing any Obligations or any assignment or
transfer of any of the foregoing;

(c)  any furnishing to the Agent or the Lenders of any security for the
Obligations, or any sale, exchange, release or surrender of, or realization on,
any collateral security for the Obligations;

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(d)  any settlement or compromise of any of the Obligations, any security
therefor, or any liability of any other party with respect to the Obligations,
or any subordination of the payment of the Obligations to the payment of any
other liability of the Borrower;

(e)  any bankruptcy, insolvency, reorganization, composition, adjustment,
dissolution, liquidation or other like proceeding relating to any other
Guarantor, the Borrower or any other Person, or any action taken with respect
to this Guaranty by any trustee or receiver, or by any court, in any such
proceeding;

(f)  any nonperfection of any security interest or other Lien on any of the
collateral securing any of the Obligations;

(g)  any act or failure to act by the Borrower or any other Person which
may adversely affect such Guarantors subrogation rights, if any, against the
Borrower to recover payments made under this Guaranty;

(h)  any application of sums paid by the Borrower or any other Person with
respect to the liabilities of the Borrower to the Agent or the Lenders,
regardless of what liabilities of the Borrower remain unpaid;

(i)  any defect, limitation or insufficiency in the borrowing powers of the
Borrower or in the exercise thereof; or

(j)  any other circumstance which might otherwise constitute a defense
available to, or a discharge of, any Guarantor hereunder.

Section 4. Action with Respect to Obligations. The Lenders and the Agent
may, at any time and from time to time, without the consent of, or notice to,
any Guarantor, and without discharging any Guarantor from its obligations
hereunder take any and all actions described in Section 3 and may otherwise:
(a) amend, modify, alter or supplement the terms of any of the Obligations,
including, but not limited to, extending or shortening the time of payment of
any of the Obligations or the interest rate that may accrue on any of the
Obligations; (b) amend, modify, alter or supplement the Credit Agreement or any
other Credit Document; (c) sell, exchange, release or otherwise deal with all,
or any part, of any collateral securing any of the Obligations; (d) release any
Person liable in any manner for the payment or collection of the Obligations;
(e) exercise, or refrain from exercising, any rights against the Borrower or
any other Person (including, without limitation, any other Guarantor); and (f)
apply any sum, by whomsoever paid or however realized, to the Obligations in
such order as the Lenders or the Agent shall elect.

Section 5. Representations and Warranties. Each Guarantor hereby makes
to the Agent and the Lenders all of the representations and warranties made by
the Borrower with respect to or in any way relating to such Guarantor in the
Credit Agreement and the other Credit Documents, as if the same were set forth
herein in full.

Section 6. Covenants. Each Guarantor will comply with all covenants which
the Borrower is to cause such Guarantor to comply with under the terms of the
Credit Agreement or

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any other Credit Documents. Guarantor specifically agrees that to the
extent Guaranty Proceeds (as defined in Section 7.3(a) of the Credit Agreement)
are distributed to holders of Public Debt or their respective trustees (as
defined in Section 7.3(a) of the Credit Agreement) pursuant to Section 7.3 of
the Credit Agreement, the Obligations will not be deemed to be reduced by any
such distributions and each Guarantor shall continue to make payments under
this Guaranty until such time as the Obligations have been paid in full (and
the Commitment has been terminated and any LC Exposure reduced to zero), after
taking into account any such distributions of payments hereunder in report of
Indebtedness other than the Obligations.

Section 7. Waiver. Each Guarantor, to the fullest extent permitted by
applicable law, hereby waives notice of acceptance hereof or any presentment,
demand, protest or notice of any kind, and any other act or thing, or omission
or delay to do any other act or thing, which in any manner or to any extent
might vary the risk of such Guarantor or which otherwise might operate to
discharge such Guarantor from its obligations hereunder.

Section 8. Inability to Accelerate Loan. If the Agent and/or the Lenders
are prevented from demanding or accelerating payment thereof by reason of any
automatic stay or otherwise, the Agent and/or the Lenders shall be entitled to
receive from each Guarantor, upon demand therefor, the sums which otherwise
would have been due had such demand or acceleration occurred.

Section 9. Reinstatement of Obligations. Each Guarantor agrees that this
Guaranty shall continue to be effective or be reinstated, as the case may be,
with respect to any Obligations if at any time payment of any such Obligations
is rescinded or otherwise must be restored by the Agent and/or the Lenders upon
the bankruptcy or reorganization of the Borrower or any Guarantor or otherwise.

Section 10. Subrogation. Until all of the Obligations shall have been
indefeasibly paid in full, no Guarantor shall have any right of subrogation and
each Guarantor hereby waives any right to enforce any remedy which the Agent
and/or the Lenders now have or may hereafter have against the Borrower, and
each Guarantor hereby waives any benefit of, and any right to participate in,
any security or collateral given to the Agent and the Lenders to secure payment
or performance of any of the Obligations.

Section 11. Payments Free and Clear. All sums payable by each Guarantor
hereunder, whether of principal, interest, fees, expenses, premiums or
otherwise, shall be paid in full, without set-off or counterclaim or any
deduction or withholding whatsoever (including any withholding tax or liability
imposed by any Governmental Authority, or any Legal Requirement promulgated
thereby), and if any Guarantor is required by such Legal Requirement or by such
Governmental Authority to make any such deduction or withholding, such
Guarantor shall pay to the Agent and the Lenders such additional amount as will
result in the receipt by the Agent and the Lenders of the full amount payable
hereunder had such deduction or withholding not occurred or been required.

Section 12. Set-off. In addition to any rights now or hereafter granted
under applicable law and not by way of limitation of any such rights, each
Lender is hereby authorized by each

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Guarantor, at any time or from time to time, without notice to any
Guarantor or to any other Person, any such notice being hereby expressly
waived, but subject to receipt of Agents prior written consent, to set-off and
to appropriate and to apply any and all deposits (general or special,
including, but not limited to, indebtedness evidenced by certificates of
deposit, whether matured or unmatured) and any other indebtedness at any time
held or owing by such Lender or any Affiliate of such Lender, to or for the
credit or the account of each Guarantor against and on account of any of the
Obligations then due and owing after the expiration of any applicable grace
periods. Each Guarantor agrees, to the fullest extent it may effectively do so
under applicable law, that any holder of a participation in a Note, whether or
not acquired pursuant to the applicable provisions of the Credit Agreement, may
exercise rights of setoff or counterclaim and other rights with respect to such
participation as fully as if such holder of a participation were a direct
creditor of such Guarantor in the amount of such participation.

Section 13. Subordination. Each Guarantor hereby expressly covenants
and agrees for the benefit of the Agent and the Lenders that all obligations
and liabilities of the Borrower or any other Guarantor to such Guarantor of
whatever description, including without limitation, all intercompany
receivables of such Guarantor from the Borrower or any other Guarantor
(collectively, the Junior Claims) shall be subordinate and junior in right of
payment to all Obligations. If an Event of Default shall have occurred and be
continuing, then no Guarantor shall accept any direct or indirect payment (in
cash, property, securities by setoff or otherwise) from the Borrower or any
other Guarantor on account of or in any manner in respect of any Junior Claim
until all of the Obligations have been indefeasibly paid in full.

Section 14. Avoidance Provisions. It is the intent of each Guarantor, the
Agent and the Lenders that in any Proceeding, such Guarantors maximum
obligation hereunder shall equal, but not exceed, the maximum amount which
would not otherwise cause the obligations of such Guarantor hereunder (or any
other obligations of such Guarantor to the Agent and the Lenders) to be
avoidable or unenforceable against such Guarantor in such Proceeding as a
result of applicable law, including without limitation, (a) Section 548 of the
Bankruptcy Code of 1978, as amended (the Bankruptcy Code) and (b) any state
fraudulent transfer or fraudulent conveyance act or statute applied in such
Proceeding, whether by virtue of Section 544 of the Bankruptcy Code or
otherwise. The applicable laws under which the possible avoidance or
unenforceability of the obligations of such Guarantor hereunder (or any other
obligations of such Guarantor to the Agent and the Lenders) shall be determined
in any such Proceeding are referred to as the Avoidance Provisions.
Accordingly, to the extent that the obligations of any Guarantor hereunder
would otherwise be subject to avoidance under the Avoidance Provisions, the
maximum Obligations for which such Guarantor shall be liable hereunder shall be
reduced to that amount which, as of the time any of the Obligations are deemed
to have been incurred under the Avoidance Provisions, would not cause the
obligations of any Guarantor hereunder (or any other obligations of such
Guarantor to the Agent and the Lenders), to be subject to avoidance under the
Avoidance Provisions. This Section is intended solely to preserve the rights of
the Agent and the Lenders hereunder to the maximum extent that would not cause
the obligations of any Guarantor hereunder to be subject to avoidance under the
Avoidance Provisions, and no Guarantor nor any other Person shall have any
right or claim under this Section as against the Agent and the Lenders that
would not otherwise be available to such Person under the Avoidance Provisions.

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Section 15. Information. Each Guarantor assumes all responsibility for
being and keeping itself informed of the financial condition of the Borrower,
of the other Guarantors and of all other circumstances bearing upon the risk of
nonpayment of any of the Obligations and the nature, scope and extent of the
risks that such Guarantor assumes and incurs hereunder, and agrees that none of
the Agent or any Lender shall have any duty whatsoever to advise any Guarantor
of information regarding such circumstances or risks.

Section 16. Governing Law. THIS GUARANTY SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF TEXAS.

SECTION 17. JURISDICTION, VENUE.

(a)  EACH GUARANTOR AGREES THAT THE FEDERAL DISTRICT COURT OF THE SOUTHERN
DISTRICT OF TEXAS, HOUSTON DIVISION, OR, AT THE OPTION OF THE AGENT, ANY STATE
COURT LOCATED IN HARRIS COUNTY, TEXAS SHALL HAVE NON-EXCLUSIVE JURISDICTION TO
HEAR AND DETERMINE ANY CLAIMS OR DISPUTES BETWEEN OR AMONG ANY GUARANTOR, THE
AGENT OR ANY OF THE LENDERS, PERTAINING DIRECTLY OR INDIRECTLY TO THIS GUARANTY
OR ANY OTHER CREDIT DOCUMENT OR TO ANY MATTER ARISING HEREFROM OR THEREFROM OR
ANY COLLATERAL. EACH GUARANTOR EXPRESSLY SUBMITS AND CONSENTS IN ADVANCE TO
SUCH JURISDICTION IN ANY ACTION OR PROCEEDING COMMENCED IN SUCH COURTS. THE
CHOICE OF FORUM SET FORTH IN THIS SECTION SHALL NOT BE DEEMED TO PRECLUDE THE
BRINGING OF ANY ACTION BY THE AGENT OR ANY LENDER OR THE ENFORCEMENT BY THE
AGENT OR ANY LENDER IN ANY OTHER APPROPRIATE JURISDICTION. FURTHER, EACH
GUARANTOR IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE
LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF THE
VENUE OF ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM THAT ANY
SUCH PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN INCONVENIENT
FORUM.

(b)  THE FOREGOING WAIVERS HAVE BEEN MADE WITH THE ADVICE OF COUNSEL AND
WITH A FULL UNDERSTANDING OF THE LEGAL CONSEQUENCES THEREOF, AND SHALL SURVIVE
THE PAYMENT OF THE OBLIGATIONS AND ALL OTHER AMOUNTS PAYABLE HEREUNDER OR UNDER
THE OTHER CREDIT DOCUMENTS AND THE TERMINATION OF THIS GUARANTY.

Section 18. Loan Accounts. The Agent may maintain books and accounts
setting forth the amounts of principal, interest and other sums paid and
payable with respect to the Obligations, and in the case of any dispute
relating to any of the outstanding amount, payment or receipt of Obligation or
otherwise, the entries in such account shall be binding upon each Guarantor as
to the outstanding amount of such Obligations and the amounts paid and payable
with respect thereto absent manifest error. The failure of the Agent to
maintain such books and accounts shall not in any way relieve or discharge any
Guarantor of any of its obligations hereunder.

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Section 19. Waiver of Remedies. No delay or failure on the part of the
Agent or the Lenders in the exercise of any right or remedy it may have against
any Guarantor hereunder or otherwise shall operate as a waiver thereof, and no
single or partial exercise by the Agent or the Lenders of any such right or
remedy shall preclude other or further exercise thereof or the exercise of any
other such right or remedy.

Section 20. Successors and Assigns. Each reference herein to the Agent
or the Lenders shall be deemed to include such Persons respective successors
and assigns (including, but not limited to, any holder of the Obligations) in
whose favor the provisions of this Guaranty also shall inure, and each
reference herein to any Guarantor shall be deemed to include the Guarantors
successors and assigns, upon whom this Guaranty also shall be binding. The
Lenders and the Agent may, in accordance with the applicable provisions of the
Credit Agreement, assign, transfer or sell any Obligation, or grant or sell
participation in any Obligations, to any Person or entity without the consent
of, or notice to, any Guarantor and without releasing, discharging or modifying
such Guarantors obligations hereunder. Each Guarantor hereby consents to the
delivery by the Agent or any Lender to any assignee, transferee or participant
of any financial or other information regarding the Borrower or any Guarantor.
Each Guarantor may not assign or transfer its obligations hereunder to any
Person.

SECTION 21. JOINT AND SEVERAL OBLIGATIONS. THE OBLIGATIONS OF THE
GUARANTORS HEREUNDER AND UNDER OTHER CREDIT DOCUMENTS SHALL BE JOINT AND
SEVERAL, AND ACCORDINGLY, EACH GUARANTOR CONFIRMS THAT IT IS LIABLE FOR THE
FULL AMOUNT OF THE OBLIGATIONS AND ALL OF THE OBLIGATIONS AND LIABILITIES OF
EACH OF THE OTHER GUARANTORS HEREUNDER AND UNDER OTHER COURT DOCUMENTS.

Section 22. Amendments. This Guaranty may not be amended except as
provided in the Credit Agreement.

Section 23. Payments. All payments made by any Guarantor pursuant to
this Guaranty shall be made in Dollars, in immediately available funds to the
Agent at its Lending Office, not later than 12:00 noon, New York, New York time
on the date one (1) Business Day after demand therefor.

Section 24. Notices. All notices, requests and other communications
hereunder shall be in writing and shall be given as provided in the Loan
Agreement. Each Guarantors address for notice is set forth below its
signature hereto.

Section 25. Severability. In case any provision of this Guaranty shall
be invalid, illegal or unenforceable in any jurisdiction, the validity,
legality and enforceability of the remaining provisions shall not in any way be
affected or impaired thereby.

Section 26. Headings. Section headings used in this Guaranty are for
convenience only and shall not affect the construction of this Guaranty.

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Section 27. Definitions. (a) For the purposes of this Guaranty:

Proceeding means any of the following: (i) a voluntary or involuntary
case concerning any Guarantor shall be commenced under the Bankruptcy Code or
any other applicable bankruptcy laws; (ii) a custodian (as defined in the
Bankruptcy Code or any other applicable bankruptcy laws) is appointed for, or
takes charge of, all or any substantial part of the property of any Guarantor;
(iii) any other proceeding under any applicable law, domestic or foreign,
relating to bankruptcy, insolvency, reorganization, winding-up or composition
for adjustment of debts, whether now or hereafter in effect, is commenced
relating to any Guarantor; (iv) any Guarantor is adjudicated insolvent or
bankrupt; (v) any order of relief or other order approving any such case or
proceeding is entered by a court of competent jurisdiction; (vi) any Guarantor
makes a general assignment for the benefit of creditors; (vii) any Guarantor
shall fail to pay, or shall state that it is unable to pay, or shall be unable
to pay, its debts generally as they become due; (viii) any Guarantor shall call
a meeting of its creditors with a view to arranging a composition or adjustment
of its debts; (ix) any Guarantor shall by any act or failure to act indicate
its consent to, approval of or acquiescence in any of the foregoing; or (x) any
corporate action shall be taken by any Guarantor for the purpose of effecting
any of the foregoing.

(b)  Terms not otherwise defined herein are used herein with the respective
meanings given them in the Credit Agreement.

IN WITNESS WHEREOF, each Guarantor has duly executed and delivered this
Guaranty as of the date and year first written above.



| | [Guarantor Signature]
| | ---------------------



| | Address:
9200 E. Panorama Circle
Suite 400
Englewood, Colorado 80112
Attention: Corporate Finance
| | -------------------------------------------------------------------------------------------------

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ASSIGNMENT AND ASSUMPTION

This Assignment and Assumption (the Assignment and Assumption) is dated
as of the Effective Date set forth below and is entered into by and between
[Insert name of Assignor] (the Assignor) and [Insert name of Assignee] (the
Assignee). Capitalized terms used but not defined herein shall have the
meanings given to them in the Credit Agreement identified below (as amended,
the Credit Agreement), receipt of a copy of which is hereby acknowledged by
the Assignee. The Standard Terms and Conditions set forth in Annex 1 attached
hereto are hereby agreed to and incorporated herein by reference and made a
part of this Assignment and Assumption as if set forth herein in full.

For an agreed consideration, the Assignor hereby irrevocably sells and
assigns to the Assignee, and the Assignee hereby irrevocably purchases and
assumes from the Assignor, subject to and in accordance with the Standard Terms
and Conditions and the Credit Agreement, as of the Effective Date inserted by
the Administrative Agent as contemplated below (i) all of the Assignors rights
and obligations in its capacity as a Lender under the Credit Agreement and any
other documents or instruments delivered pursuant thereto to the extent related
to the amount and percentage interest identified below of all of such
outstanding rights and obligations of the Assignor under the respective
facilities identified below (including any letters of credit, guarantees, and
swingline loans included in such facilities) and (ii) to the extent permitted
to be assigned under applicable law, all claims, suits, causes of action and
any other right of the Assignor (in its capacity as a Lender) against any
Person, whether known or unknown, arising under or in connection with the
Credit Agreement, any other documents or instruments delivered pursuant thereto
or the loan transactions governed thereby or in any way based on or related to
any of the foregoing, including contract claims, tort claims, malpractice
claims, statutory claims and all other claims at law or in equity related to
the rights and obligations sold and assigned pursuant to clause (i) above (the
rights and obligations sold and assigned pursuant to clauses (i) and (ii) above
being referred to herein collectively as the Assigned Interest). Such sale
and assignment is without recourse to the Assignor and, except as expressly
provided in this Assignment and Assumption, without representation or warranty
by the Assignor.

|   |  |                       |  |                                                                                                                                                                                                                       
|-- |  | --------------------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|1. |  | Assignor:             |  |                                                                                                                                                                                                                       
|   |  |                       |  |                                                                                                                                                                                                                       
|2. |  | Assignee:             |  |                                                                                                                                                                                                                       
|   |  |                       |  |                                                                                                                                                                                                                       
|   |  |                       |  | [and is an Affiliate/Approved Fund of [identify Lender]1]                                                                                                                                                             
|   |  |                       |  |                                                                                                                                                                                                                       
|3. |  | Borrower:             |  | Archstone-Smith Operating Trust                                                                                                                                                                                       
|   |  |                       |  |                                                                                                                                                                                                                       
|4. |  | Administrative Agent: |  | JPMorgan Chase Bank, as the administrative agent under the Credit Agreement                                                                                                                                           
|   |  |                       |  |                                                                                                                                                                                                                       
|5. |  | Credit Agreement:     |  | [The Amended
and Restated Credit Agreement dated as of
, 2003 among Archstone-Smith
Operating Trust, the Lenders parties thereto, JPMorgan Chase Bank, as Administrative Agent, and
the other lenders parties thereto]



---

|1 Select as applicable.
|-----------------------

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|6. |  | Assigned Interest:
|-- |  | ------------------

|                   |  |                     |   |                  |  |                        |  |  |  |  |   | 
|------------------ |  | ------------------- | - | ---------------- |  | ---------------------- |  |  |  |  | - | 
|                   |  | Aggregate Amount of |   | Amount of        |  |                        |  | 
|                   |  | Commitment/Loans    |   | Commitment/Loans |  | Percentage Assigned of
|Facility Assigned2 |  | for all Lenders     |   | Assigned         |  | Commitment/Loans3     
|                   |  |                     |   |                  |  |                       
|                   |  |                     | $ |                  |  | $                      |  |  |  |  | % | 
|                   |  |                     | $ |                  |  | $                      |  |  |  |  | % | 
|                   |  |                     | $ |                  |  | $                      |  |  |  |  | % | 

Effective
Date:,
20 [TO BE INSERTED BY ADMINISTRATIVE
AGENT AND WHICH SHALL BE THE EFFECTIVE DATE OF RECORDATION OF TRANSFER IN THE
REGISTER THEREFOR.]

The terms set forth in this Assignment and Assumption are hereby agreed to:

| |  |                    |  | 
| |  | ------------------ |  | 
| |  | ASSIGNOR          
| |  |                    |  | 
| |  | [NAME OF ASSIGNOR]
| |  |                    |  | 
| |  | By:                |  | 
| |  |                    | 
| |  | Title:             | 
| |  |                    |  | 
| |  | ASSIGNEE          
| |  |                    |  | 
| |  | [NAME OF ASSIGNEE]
| |  |                    |  | 
| |  | By:                |  | 
| |  |                    | 
| |  | Title:             | 



---

|2 Fill in the appropriate terminology for the types of facilities under the
Credit Agreement that are being assigned under this Assignment (e.g. Revolving
Commitment, Tranche A Commitment, Tranche B Commitment, etc.)
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                              
|3 Set forth, to at least 9 decimals, as a percentage of the Commitment/Loans of
all Lenders thereunder.                                                                                                                       

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[Consented to and]4 Accepted:

JPMORGAN CHASE BANK, as
   Administrative Agent

|   |        | 
|-- | ------ | 
|By |        | 
|   |       
|   | Title: | 

[Consented to:]5

[NAME OF RELEVANT PARTY]

|   |        | 
|-- | ------ | 
|By |        | 
|   |       
|   | Title: | 



---

|4 To be added only if the consent of the Administrative Agent is required by
the terms of the Credit Agreement.                                               
|--------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                              
|5 To be added only if the consent of the Borrower and/or other parties (e.g.
Swingline Lender, Issuing Bank) is required by the terms of the Credit
Agreement.

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ANNEX 1

STANDARD TERMS AND CONDITIONS FOR
ASSIGNMENT AND ASSUMPTION

1. Representations and Warranties.

1.1 Assignor. The Assignor (a) represents and warrants that (i) it is
the legal and beneficial owner of the Assigned Interest, (ii) the Assigned
Interest is free and clear of any lien, encumbrance or other adverse claim and
(iii) it has full power and authority, and has taken all action necessary, to
execute and deliver this Assignment and Assumption and to consummate the
transactions contemplated hereby; and (b) assumes no responsibility with
respect to (i) any statements, warranties or representations made in or in
connection with the Credit Agreement or any other Loan Document, (ii) the
execution, legality, validity, enforceability, genuineness, sufficiency or
value of the Loan Documents or any collateral thereunder, (iii) the financial
condition of the Borrower, any of its Subsidiaries or Affiliates or any other
Person obligated in respect of any Loan Document or (iv) the performance or
observance by the Borrower, any of its Subsidiaries or Affiliates or any other
Person of any of their respective obligations under any Loan Document.

1.2. Assignee. The Assignee (a) represents and warrants that (i) it has
full power and authority, and has taken all action necessary, to execute and
deliver this Assignment and Assumption and to consummate the transactions
contemplated hereby and to become a Lender under the Credit Agreement, (ii) it
satisfies the requirements, if any, specified in the Credit Agreement that are
required to be satisfied by it in order to acquire the Assigned Interest and
become a Lender, (iii) from and after the Effective Date, it shall be bound by
the provisions of the Credit Agreement as a Lender thereunder and, to the
extent of the Assigned Interest, shall have the obligations of a Lender
thereunder, (iv) it has received a copy of the Credit Agreement, together with
copies of the most recent financial statements delivered pursuant to Section
5.2 thereof, as applicable, and such other documents and information as it has
deemed appropriate to make its own credit analysis and decision to enter into
this Assignment and Assumption and to purchase the Assigned Interest on the
basis of which it has made such analysis and decision independently and without
reliance on the Administrative Agent or any other Lender, and (v) if it is a
Foreign Lender, attached to the Assignment and Assumption is any documentation
required to be delivered by it pursuant to the terms of the Credit Agreement,
duly completed and executed by the Assignee; and (b) agrees that (i) it will,
independently and without reliance on the Administrative Agent, the Assignor or
any other Lender, and based on such documents and information as it shall deem
appropriate at the time, continue to make its own credit decisions in taking or
not taking action under the Loan Documents, and (ii) it will perform in
accordance with their terms all of the obligations which by the terms of the
Loan Documents are required to be performed by it as a Lender.

2. Payments. From and after the Effective Date, the Administrative Agent
shall make all payments in respect of the Assigned Interest (including payments
of principal, interest, fees and other amounts) to the Assignor for amounts
which have accrued to but excluding the Effective Date and to the Assignee for
amounts which have accrued from and after the Effective Date.

3. General Provisions. This Assignment and Assumption shall be binding
upon, and inure to the benefit of, the parties hereto and their respective
successors and assigns. This Assignment and Assumption may be executed in any
number of counterparts, which together shall constitute one instrument.
Delivery of an executed counterpart of a signature page of this Assignment and
Assumption by telecopy shall be effective as delivery of a manually executed
counterpart of this Assignment and Assumption. This Assignment and Assumption
shall be governed by, and construed in accordance with, the law of the State of
Texas.

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GUARANTY OF COLLECTION

THIS
GUARANTY (this Guaranty), dated as of
 is made by

(the Guarantor), in favor of (a) JPMorgan Chase Bank,
in its capacity as Administrative Agent (the Agent) for the Lenders under
that certain Amended and Restated Credit Agreement dated as of October 30, 2003
by and among Archstone-Smith Operating Trust (the Borrower), the financial
institutions party thereto and their assignees in accordance therewith (the
Lenders), and the Agent (as the same may be amended, restated, supplemented,
or otherwise modified from time to time in accordance with its terms, the
Credit Agreement) and (b) the Lenders.

PRELIMINARY STATEMENT. Capitalized terms not otherwise defined herein
shall have the respective meanings assigned thereto under the Credit Agreement.
The Guarantor is a beneficial common unitholder of the Borrower and therefore
the Guarantor has determined that the making of the Loan by the Lenders
benefited, directly or indirectly, the Guarantor. If other beneficial common
unitholders of the Borrower have entered into similar guaranty agreements (the
Other Guarantees) with the Agent as this Guaranty, they shall be referred to
in this Guaranty as the Other Guarantors.

NOW, THEREFORE, in consideration of the premises, the Guarantor hereby
agrees as follows:

SECTION 1. Guaranty. This guaranty constitutes a limited guaranty of
collection. The Guarantor hereby guarantees the punctual collection when due,
on a several basis, whether at stated maturity, by demand, acceleration or
otherwise, of (a) that portion of the principal and interest outstanding on the
indebtedness of the Borrower under the Credit Agreement that remains
outstanding equal to $  [THIS NUMBER IS INTENDED TO BE THE ACTUAL
AMOUNT OF GUARANTEE] less such amounts as the Agent has collected upon
exercising all rights, assertion of all claims and demands and enforcement of
all remedies available to it (other than this Guaranty and the Other
Guarantees) under the Credit Documents, and (b) reasonable attorneys fees and
all costs and expenses incurred in enforcing any rights under this Guaranty
(such obligations being the Obligations). An objective of this guaranty is
that the Obligation shall be a recourse liability as defined in Treasury
Regulation §1.752-1(a)(1), and the Guarantor shall bear the economic risk of
loss with respect to such portion of the liabilities as is equal to the
Obligations within the meaning of Treasury Regulation §1.752-2.

SECTION 2. Guaranty Absolute. The Guarantor hereby guarantees that the
Obligations will be paid strictly in accordance with their terms, regardless of
any law, regulation or order now or hereafter in effect in any jurisdiction
affecting any of such terms or the rights of the Agent with respect thereto.
The liability of the Guarantor under this Guaranty shall be absolute and
unconditional irrespective of:



| | (a) |  | Any lack of validity or enforceability of the Credit
Agreement or any other Credit Documents or agreement relating
thereto or executed in connection therewith; 
| | --- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (b) |  | Any change in the time, manner or place of payment of, or in
any other term of, all or any of the Obligations or any other
amendment or waiver of or any consent

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| |     |  | to any departure from the Credit Agreement, any other Credit
Documents or any other documents or agreement relating thereto or
executed in connection therewith;                                                                                                                                                                                                                   
| | --- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (c) |  | Any exchange, release or non-perfection of any other
collateral, or any release or amendment or waiver of or consent to
departure from any guaranty, for all or any of the Obligations; or                                                                                                                                                                                         
|
| | (d) |  | Any other circumstance which might otherwise constitute a
defense available to, or a discharge of, the Borrower, any
subsidiary of Borrower or any other person that is a party to the
Credit Agreement, any other Credit Documents or any other document
or agreement related thereto or executed in connection therewith
(including any guarantor) in respect to the Obligations.

This Guaranty shall continue to be effective or be reinstated, as the case may
be, if at any time any payment of any of the Obligations is rescinded or must
otherwise be returned by the Agent or any Lender upon the insolvency,
bankruptcy or reorganization of the Borrower or Guarantor or otherwise, all as
though such payment had not been made. The obligations of the Guarantor under
this Guaranty shall not be subject to reduction, termination or other
impairment by reason of any setoff, recoupment, counterclaim or defense or for
any other reason. This Guaranty is to be in addition to and is not to
prejudice or be prejudiced by any other securities or guaranties (including any
guaranty signed by the Guarantor) which the Agent may now or hereafter hold
from or on account of the Borrower and is to be binding on the Guarantor as a
continuing guaranty notwithstanding any payments from time to time made to the
Agent or any settlement of account or disability or incapacity affecting the
Guarantor or any other thing whatsoever.

SECTION 3. Representations and Warranties. Guarantor hereby represents
and warrants that it has the requisite power and authority to execute and
deliver and to carry out this Guaranty and the transactions contemplated
herein; and to perform its obligations hereunder. This Guaranty has been duly
and validly executed and delivered by the Guarantor and constitutes a valid and
legally binding agreement of the Guarantor, enforceable in accordance with its
terms.

SECTION 4. Waiver. The Guarantor waives any notice with respect to any of
the Obligations and this Guaranty (it being the understanding of the Agent and
the Guarantor that this Guaranty is a guaranty of collection and not of
payment).

SECTION 5. No Subrogation. The Guarantor will not exercise any rights
which it may acquire by way of subrogation under this Guaranty or in respect of
any security for the Obligations, by any payment made hereunder or otherwise.

SECTION 6. Amendments, Etc. No amendment or waiver of any provision of
this Guaranty nor consent to any departure by the Guarantor herefrom, shall be
effective unless the same is in writing and signed by the Agent and then such
waiver or consent shall be effective only in the specific instance and for the
specific purpose for which given.

SECTION 7. Notices. Except as otherwise expressly provided herein, all
notices and other communications provided for hereunder shall be in writing or
by facsimile, telegraph or

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cable and mailed or sent or delivered as to each party hereto at the
address for notices set forth under its name on the signature page hereof or,
in the case of each party, at such other address as shall be designated by such
party in a written notice to all other parties. All such notices and other
communications shall be effective when received, and in the case of notice by
facsimile, telegraph or cable, when sent, and upon receipt of an answer back,
in each case addressed as set forth above.

SECTION 8. No Waiver; Cumulative Remedies. No failure on the part of the
Agent or any Lender to exercise, and no delay in exercising, any right
hereunder shall operate as a waiver thereof; nor shall any single or partial
exercise of any such right preclude any other or further exercise thereof or
the exercise of any other right. The remedies herein provided are cumulative
and not exclusive of any remedies provided by law.

SECTION 9. Absolute and Continuing Guaranty. This Guaranty is an absolute
and continuing guaranty and shall (a) remain in full force and effect until
full payment of the Obligations or all amounts payable under this Guaranty, (b)
be binding upon the Guarantor and its successors and assigns, and (c) inure to
the benefit of the Agent and its successors and assigns.

SECTION 10. Savings Clause. Nothing herein is intended to contract for,
take, reserve, charge or receive interest or other consideration for the use,
forbearance or detention of money at a rate in excess of the highest rate
permitted by applicable laws (Highest Lawful Rate) nor shall the Guarantor be
required to pay unearned interest. If any amount payable by the Guarantor
hereunder is deemed to constitute unearned interest or if the Agent shall
receive from the Guarantor any monies that are deemed to constitute interest at
a rate in excess of the Highest Lawful Rate, then (a) the amount of interest
which would otherwise be payable under this Guaranty shall be reduced to the
amount allowed under applicable law, and (b) any unearned interest paid by the
Guarantor or any interest paid by the Guarantor in excess of the Highest Lawful
Rate shall, at the option of the Agent, be either refunded to the Guarantor or
credited against the amounts payable by the Guarantor hereunder, in such order
as the Agent shall determine.

SECTION 11. Governing Law. This Guaranty shall be deemed to be executed
by the parties hereto under the laws of the State of Texas, and shall be
construed in accordance with the laws of Texas and applicable federal law.

SECTION 12. Waiver of Suretyship Rights. By signing this Guaranty,
Guarantor WAIVES each and every right to which it may be entitled by virtue of
any suretyship law, including any rights it may have pursuant to Rule 31 of the
Texas Rules of Civil Procedure, §17.001 of the Texas Civil Practice and
Remedies Code and Chapter 34 of the Texas Business and Commerce Code, as the
same may be amended from time to time.

SECTION 13. Release of Claims. Guarantor hereby releases, discharges and
acquits forever Agent, Lenders and their respective officers, directors,
trustees, agents, employees and counsel (in each case, past, present or future)
from any and all Claims existing as of the date hereof (or the date of actual
execution hereof by Guarantor, if later). As used herein, the term Claim
shall mean any and all liabilities, claims, defenses, demands, actions, causes
of action,

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judgments, deficiencies, interest, liens, costs or expenses (including
court costs, penalties, attorneys fees and disbursements, and amounts paid in
settlement) of any kind and character whatsoever, including claims for usury,
breach of contract, breach of commitment, negligent misrepresentation or
failure to act in good faith, in each case whether now known or unknown,
suspected or unsuspected, asserted or unasserted or primary or contingent, and
whether arising out of written documents, unwritten undertakings, course of
conduct, tort, violations of laws or regulations or otherwise. To the maximum
extent permitted by applicable law, Guarantor hereby waives all rights,
remedies, claims and defenses based upon or related to Sections 51.003, 51.004
and 51.005 of the Texas Property Code, to the extent the same pertain or may
pertain to any enforcement of this Guaranty.

IN WITNESS WHEREOF, the Guarantor has caused this Guaranty to be duly
executed and delivered as of the date first above written.

| |  |                        |  | 
| |  | ---------------------- |  | 
| |  | [Name of Guarantor]   
| |  |                        |  | 
| |  | By:                    |  | 
| |  |                        | 
| |  | Name:                  |  | 
| |  |                        | 
| |  | Title:                 |  | 
| |  |                        | 
| |  |                        |  | 
| |  | [Address of Guarantor]

EXHIBIT KPage 4 of 4