Document:

<PAGE>
                                                                    EXHIBIT 10.1

                                                         Schedule 2 to Indenture

                        SEMIANNUAL SERVICER'S CERTIFICATE
                 CENTERPOINT ENERGY TRANSITION BOND COMPANY, LLC
             (FORMERLY RELIANT ENERGY TRANSITION BOND COMPANY LLC)
                  $748,897,000 TRANSITION BONDS, SERIES 2001-1

               Pursuant to Section 6 of Annex 1 to the Transition
            Property Servicing Agreement (the "Agreement"), dated as
             of October 24, 2001, between CenterPoint Energy Houston
            Electric, LLC (formerly Reliant Energy, Incorporated), as
            Servicer, and CenterPoint Energy Transition Bond Company,
                     LLC (formerly Reliant Energy Transition
   Bond Company LLC), as Issuer, the Servicer does hereby certify as follows:

                         Capitalized terms used in this
                              Semiannual Servicer's
                             Certificate have their
                        respective meanings as set forth
                          in the Agreement. References
                         herein to certain sections and
                           subsections are references
          to the respective sections and subsections of the Agreement.

          Collection Periods: March 15, 2006 through September 14, 2006
                        Payment Date: September 15, 2006
                        Today's Date: September 14, 2006

<TABLE>
<S>          <C>   <C>                                                                  <C>                <C>
1. COLLECTIONS ALLOCABLE AND AGGREGATE AMOUNTS AVAILABLE FOR CURRENT PAYMENT DATE:
             i.    Remittances for the March 15 through 31, 2006 Collection Period        3,233,951.02
             ii.   Remittances for the April 1 through 30, 2006 Collection Period         5,799,211.22
             iii.  Remittances for the May 1 through 31, 2006 Collection Period           5,176,469.67
             iv.   Remittances for the June 1 through 30, 2006 Collection Period          7,397,985.93
             v.    Remittances for the July 1 through 31, 2006 Collection Period          7,791,804.60
             vi.   Remittances for the August 1 through 31, 2006 Collection Period        8,784,985.22
             vii.  Remittances for the September 1 through 14, 2006 Collection Period     4,031,614.28
             viii. Net Earnings on Collection Account                                       951,337.94     [3/1/06 through 8/31/06]
                                                                                        --------------
             ix.   General Subaccount Balance (sum of i through viii above)              43,167,359.88

             x.    Reserve Subaccount Balance as of Prior Payment Date                   15,106,717.95
             xi.   Overcollateralization Subaccount Balance as of Prior Payment Date      1,404,181.88
             xii.  Capital Subaccount Balance as of Prior Payment Date                    3,744,485.00
                                                                                         -------------
             xiii. Collection Account Balance (sum of ix through xii above)              63,422,744.71
                                                                                         =============

2. OUTSTANDING AMOUNTS AS OF PRIOR PAYMENT DATE:
             i.    Class A-1 Principal Balance                                                    0.00
             ii.   Class A-2 Principal Balance                                           94,716,168.00
             iii.  Class A-3 Principal Balance                                          130,000,000.00
             iv.   Class A-4 Principal Balance                                          385,897,000.00
                                                                                        --------------
             v.    Aggregate Principal Balance of all Series 2001-1 Transition Bonds    610,613,168.00
                                                                                        ==============

3. REQUIRED FUNDING/PAYMENTS AS OF CURRENT PAYMENT DATE:
                                                                                          Projected
                                                                                          Principal                Semiannual
                   Series 2001-1 Principal                                                 Balance               Principal Due
                   -----------------------                                              --------------           --------------
             i.    Class A-1                                                                      0.00                     0.00
             ii.   Class A-2                                                             58,881,446.00            35,834,722.00
             iii.  Class A-3                                                            130,000,000.00                     0.00
             iv.   Class A-4                                                            385,897,000.00                     0.00
                                                                                        --------------            -------------
             v.    For all Series 2001-1 Transition Bonds                               574,778,446.00            35,834,722.00
                                                                                        ==============            =============

</TABLE>

<TABLE>
<CAPTION>

                                                                    Transition                 Days in
                                                                       Bond                    Interest
                                                                   Interest Rate              Period (1)           Interest Due
                                                                   -------------              ----------           ------------
<S>          <C>   <C>                                             <C>                        <C>                  <C>

             vi.   Required Class A-1 Interest                             3.840%                180                         0.00
             vii.  Required Class A-2 Interest                             4.760%                180                 2,254,244.80
             viii. Required Class A-3 Interest                             5.160%                180                 3,354,000.00
             ix.   Required Class A-4 Interest                             5.630%                180                10,863,000.55

             (1) On 30/360 Day basis.

</TABLE>

<TABLE>
<CAPTION>
                                                                                                                          Funding
                                                                                          Required Level                  Required
                                                                                          --------------                  --------
<S>          <C>   <C>                                                                    <C>                             <C>
             x.    Overcollateralization Subaccount                                       1,560,202.08                    156,020.20
             xi.   Capital Subaccount                                                     3,744,485.00                          0.00
</TABLE>

<TABLE>
<S>          <C>   <C>                                                                                                 <C>
4. ALLOCATION OF REMITTANCES AS OF CURRENT PAYMENT DATE PURSUANT TO SECTION 8.02(d) OF INDENTURE:
             i.    Trustee Fees and Expenses                                                                                 0.00
             ii.   Servicing Fee                                                                                       187,224.25(1)
             iii.  Administration Fee and Independent Managers Fee                                                      50,000.00(2)
             iv.   Operating Expenses                                                                                        0.00
             v.    Semiannual Interest (including any past-due Semiannual Interest for prior periods)
</TABLE>

<TABLE>
<CAPTION>
                                                                                                                      Per $1,000
                                                                                                                      of Original
                   Series 2001-1                                                          Aggregate                 Principal Amount
                   -------------                                                          ---------                 ----------------

<S>          <C>   <C>                                                                  <C>                         <C>

                   1. Class A-1 Interest Payment                                                 0.00                           0.00
                   2. Class A-2 Interest Payment                                         2,254,244.80                          19.10
                   3. Class A-3 Interest Payment                                         3,354,000.00                          25.80
                   4. Class A-4 Interest Payment                                        10,863,000.55                          28.15

             vi.   Principal Due and Payable as a result of Event of Default or on Final Maturity Date
</TABLE>

<TABLE>
<CAPTION>
                                                                                                                     Per $1,000
                                                                                                                    of Original
                   Series 2001-1                                                          Aggregate                 Principal Amount
                   -------------                                                          ---------                 ----------------

<S>          <C>   <C>                                                                    <C>                       <C>
                   1. Class A-1 Principal Payment                                                0.00                           0.00
                   2. Class A-2 Principal Payment                                                0.00                           0.00
                   3. Class A-3 Principal Payment                                                0.00                           0.00
                   4. Class A-4 Principal Payment                                                0.00                           0.00

             vii.  Semiannual Principal
</TABLE>

<TABLE>
<CAPTION>
                                                                                                                  Per $1,000
                                                                                                                  of Original
                   Series 2001-1                                                           Aggregate            Principal Amount
                   -------------                                                           ---------            ----------------

<S>          <C>   <C>                                                                  <C>                     <C>
                   1. Class A-1 Principal Payment                                                0.00                           0.00
                   2. Class A-2 Principal Payment                                       35,834,722.00                         303.68
                   3. Class A-3 Principal Payment                                                0.00                           0.00
                   4. Class A-4 Principal Payment                                                0.00                           0.00

             viii. Amounts Payable to Credit Enhancement Providers (if applicable)                N/A
             ix.   Operating Expenses not Paid under Clause (iv) above                           0.00
             x.    Funding of Capital Subaccount (to required level)                             0.00
             xi.   Funding of Overcollateralization Subaccount (to required level)         156,020.20
             xii.  Net Earnings in Capital Subaccount Released to Issuer                    90,890.81
             xiii. Deposit to Reserve Subaccount                                                 0.00
             xiv.  Released to Issuer upon Series Retirement: Collection Account                 0.00

                   (1) Servicing fee: $748,897,000 x .05% x 180/360 = $187,224.25
                   (2) Administration fee: $50,000 x 180/180 = $50,000.00

</TABLE>

5. SUBACCOUNT WITHDRAWALS AS OF CURRENT PAYMENT DATE
   (IF APPLICABLE, PURSUANT TO SECTION 8.02(d) OF INDENTURE):

<TABLE>

<S>          <C>   <C>                                                                                              <C>
             i.    Reserve Subaccount (available for 4.i. through 4.xii.)                                           9,622,742.73
             ii.   Overcollateralization Subaccount (available for 4.i. through 4.ix.)                                      0.00
             iii.  Capital Subaccount (available for 4.i. through 4.ix.)                                                    0.00
                                                                                                                    ------------
             iv.   Total Withdrawals                                                                                9,622,742.73
                                                                                                                    ============
</TABLE>

6. OUTSTANDING AMOUNTS AND COLLECTION ACCOUNT BALANCE AS OF CURRENT PAYMENT DATE
(AFTER GIVING EFFECT TO PAYMENTS TO BE MADE ON SUCH PAYMENT DATE):

<TABLE>
<CAPTION>
             Series 2001-1
             -------------
<S>          <C>   <C>                                                                                            <C>

             i.    Class A-1 Principal Balance                                                                              0.00
             ii.   Class A-2 Principal Balance                                                                     58,881,446.00
             iii.  Class A-3 Principal Balance                                                                    130,000,000.00
             iv.   Class A-4 Principal Balance                                                                    385,897,000.00
                                                                                                                  --------------
             v.    Aggregate Principal Balance for all Series 2001-1 Transition Bonds                             574,778,446.00
                                                                                                                  ==============

             vi.   Reserve Subaccount Balance                                                                       5,483,975.22
             vii.  Overcollateralization Subaccount Balance                                                         1,560,202.08
             viii. Capital Subaccount Balance                                                                       3,744,485.00
                                                                                                                    ------------
             ix.   Aggregate Collection Account Balance                                                            10,788,662.30
                                                                                                                   =============

</TABLE>

7. SHORTFALLS IN INTEREST AND PRINCIPAL PAYMENTS AS OF CURRENT PAYMENT DATE
(AFTER GIVING EFFECT TO PAYMENTS TO BE MADE ON SUCH PAYMENT DATE):

<TABLE>
<CAPTION>
             i.    Semiannual Interest
                   Series 2001-1
                   -------------

<S>          <C>   <C>                                                                                                      <C>
                   1. Class A-1 Bond Interest Payment                                                                       0.00
                   2. Class A-2 Bond Interest Payment                                                                       0.00
                   3. Class A-3 Bond Interest Payment                                                                       0.00
                   4. Class A-4 Bond Interest Payment                                                                       0.00
</TABLE>

<TABLE>
<CAPTION>

             ii.   Semiannual Principal
                   Series 2001-1
                   -------------
<S>          <C>   <C>                                                                                                      <C>
                   1. Class A-1 Principal Payment                                                                           0.00
                   2. Class A-2 Principal Payment                                                                           0.00
                   3. Class A-3 Principal Payment                                                                           0.00
                   4. Class A-4 Principal Payment                                                                           0.00
</TABLE>

8. SHORTFALLS IN REQUIRED SUBACCOUNT LEVELS AS OF CURRENT PAYMENT DATE (AFTER
GIVING EFFECT TO PAYMENTS TO BE MADE ON SUCH PAYMENT DATE):

<TABLE>
<S>          <C>   <C>                                                                                                      <C>
             i.    Overcollateralization Subaccount                                                                         0.00
             ii.   Capital Subaccount                                                                                       0.00

</TABLE>

            IN WITNESS HEREOF, the undersigned has duly executed and delivered
            this Semiannual Servicer's Certificate this 14th day of September,
            2006.

            CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC (formerly RELIANT ENERGY,
            INCORPORATED), as Servicer

            by:  /s/ Marc Kilbride
                 -------------------------------------------------
                 Marc Kilbride
                 Vice President and Treasurerexv10w1

 

Exhibit
10.1

FIRST AMENDMENT TO SENIOR SECURED REVOLVING CREDIT AGREEMENT

     THIS FIRST AMENDMENT TO SENIOR SECURED REVOLVING CREDIT AGREEMENT (this “Amendment”) made as
of the 27th day of September, 2006, by and among REPUBLIC PROPERTY LIMITED PARTNERSHIP, a
Delaware limited partnership (“Borrower”), REPUBLIC PROPERTY TRUST, a Maryland real estate
investment trust (“Parent Guarantor”), THE OTHER ENTITIES LISTED ON THE SIGNATURE PAGES HEREOF AS
GUARANTORS (the “Subsidiary Guarantors”; the Parent Guarantor and the Subsidiary Guarantors are
hereinafter referred to collectively as the “Guarantors”), KEYBANK NATIONAL ASSOCIATION, a national
banking association (“KeyBank”), THE OTHER LENDERS WHICH ARE SIGNATORIES HERETO (KeyBank and the
other lenders which are signatories hereto, collectively, the “Lenders”), and KEYBANK NATIONAL
ASSOCIATION, a national banking association, as Administrative Agent for the Lenders (the “Agent”).

W I T N E S S E T H:

     WHEREAS, Borrower, Parent Guarantor, Agent and the Lenders entered into that certain Senior
Secured Revolving Credit Agreement dated as of May 1, 2006 (the “Credit Agreement”); and

     WHEREAS, Borrower has requested that the Agent and the Lenders make certain modifications to
the terms of the Credit Agreement; and

     WHEREAS, the Agent and the Lenders have agreed to make such modifications subject to the
execution and delivery by Borrower and Guarantors of this Amendment.

     NOW, THEREFORE, for and in consideration of the sum of TEN and NO/100 DOLLARS ($10.00), and
other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged,
the parties hereto do hereby covenant and agree as follows:

     1. Definitions. All the terms used herein which are not otherwise defined herein
shall have the meanings set forth in the Credit Agreement.

     2. Modification of the Credit Agreement. Borrower, Parent Guarantor, the Lenders and
Agent do hereby modify and amend the Credit Agreement as follows:

          (a) By adding the following to the end of the definition of “Gross Asset Value” appearing in
§1.1 of the Credit Agreement:

“Notwithstanding the terms of clause (ii) above, the asset commonly known as Dulles
Park Technology Center located at 13461 Sunrise Valley Drive, Herndon, Virginia
shall be valued for the purposes of clause (ii) above at the acquisition cost of
such Real Estate determined in accordance with GAAP.”; and

          (b) By deleting the number “$150,000,000.00” appearing in §9.6(b) of the Credit Agreement, and
inserting in lieu thereof the number “$147,000,000.00”.

 

 

     3. References to Credit Agreement. All references in the Loan Documents to the Credit
Agreement shall be deemed a reference to the Credit Agreement, as modified and amended herein.

     4. Acknowledgment of Borrower and Guarantors. Borrower and Guarantors hereby
acknowledge, represent and agree that the Loan Documents, as modified and amended herein, remain in
full force and effect and constitute the valid and legally binding obligation of Borrower and
Guarantors, as applicable, enforceable against Borrower and Guarantors in accordance with their
respective terms, and that the execution and delivery of this Amendment and any other documents in
connection therewith do not constitute, and shall not be deemed to constitute, a release, waiver or
satisfaction of Borrower’s or Guarantors’ obligations under the Loan Documents.

     5. Representations and Warranties. Borrower and Guarantors represent and warrant to
Agent and the Lenders as follows:

          (a) Authorization. The execution, delivery and performance of this Amendment and the
transactions contemplated hereby (i) are within the authority of Borrower and Guarantors, (ii) have
been duly authorized by all necessary proceedings on the part of the Borrower and Guarantors, (iii)
do not and will not conflict with or result in any breach or contravention of any provision of law,
statute, rule or regulation to which the Borrower or any of the Guarantors is subject or any
judgment, order, writ, injunction, license or permit applicable to the Borrower or any of the
Guarantors, (iv) do not and will not conflict with or constitute a default (whether with the
passage of time or the giving of notice, or both) under any provision of the partnership agreement
or certificate, certificate of formation, operating agreement, articles of incorporation or other
charter documents or bylaws of, or any mortgage, indenture, agreement, contract or other instrument
binding upon, the Borrower or any of the Guarantors or any of their respective properties or to
which the Borrower or any of the Guarantors is subject, and (v) do not and will not result in or
require the imposition of any lien or other encumbrance on any of the properties, assets or rights
of the Borrower or any of the Guarantors, other than the liens and encumbrances created by the Loan
Documents.

          (b) Enforceability. The execution and delivery of this Amendment are valid and
legally binding obligations of Borrower and Guarantors enforceable in accordance with the
respective terms and provisions hereof, except as enforceability is limited by bankruptcy,
insolvency, reorganization, moratorium or other laws relating to or affecting generally the
enforcement of creditors’ rights and the effect of general principles of equity.

          (c) Approvals. The execution, delivery and performance of this Amendment and the
transactions contemplated hereby do not require the approval or consent of any Person or the
authorization, consent, approval of or any license or permit issued by, or any filing or
registration with, or the giving of any notice to, any court, department, board, commission or
other governmental agency or authority other than those already obtained.

          (d) Reaffirmation. Borrower and Guarantors reaffirm and restate as of the date hereof
each and every representation and warranty made by the Borrower, the Guarantors and their
respective Subsidiaries in the Loan Documents or otherwise made by or on behalf of such Persons in
connection therewith except for representations or warranties that expressly relate to an earlier
date.

2

 

     6. No Default. By execution hereof, the Borrower and Guarantors certify that Borrower
and each of the Guarantors is and will be in compliance with all covenants under the Loan Documents
after the execution and delivery of this Amendment, and that no Default or Event of Default has
occurred and is continuing.

     7. Waiver of Claims. Borrower and Guarantors acknowledge, represent and agree that
none of such Persons has any defenses, setoffs, claims, counterclaims or causes of action of any
kind or nature whatsoever with respect to the Loan Documents, the administration or funding of the
Loan or with respect to any acts or omissions of Agent or any Lender, or any past or present
officers, agents or employees of Agent or any Lender, and each of such Persons does hereby
expressly waive, release and relinquish any and all such defenses, setoffs, claims, counterclaims
and causes of action, if any.

     8. Ratification. Except as hereinabove set forth, all terms, covenants and provisions
of the Credit Agreement remain unaltered and in full force and effect, and the parties hereto do
hereby expressly ratify and confirm the Loan Documents as modified and amended herein. Nothing in
this Amendment or any other document delivered in connection herewith shall be deemed or construed
to constitute, and there has not otherwise occurred, a novation, cancellation, satisfaction,
release, extinguishment or substitution of the indebtedness evidenced by the Notes or the other
obligations of Borrower and Guarantors under the Loan Documents.

     9. Effective Date. This Amendment shall be deemed effective and in full force and
effect as of the date hereof upon the execution and delivery of this Amendment by Borrower,
Guarantors, Agent and the Required Lenders. The Borrower will pay the reasonable fees and expenses
of Agent in connection with this Amendment.

     10. Amendment as Loan Document. This Amendment shall constitute a Loan Document.

     11. Counterparts. This Amendment may be executed in any number of counterparts which
shall together constitute but one and the same agreement.

     12. MISCELLANEOUS. THIS AMENDMENT SHALL, PURSUANT TO NEW YORK GENERAL OBLIGATIONS LAW
SECTION 5-1401, BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.
This Amendment shall be binding upon and shall inure to the benefit of the parties hereto and their
respective permitted successors, successors-in-title and assigns as provided in the Credit
Agreement.

[Remainder of Page Intentionally Left Blank]

3

 

     IN WITNESS WHEREOF, the parties hereto have hereto set their hands and affixed their seals as
of the day and year first above written.

BORROWER:

REPUBLIC
PROPERTY LIMITED PARTNERSHIP, 
a Delaware limited partnership

	 	 	 	 	 
	By:	 	Republic Property
Trust, 
a Maryland real estate investment trust, its sole general partner
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Gary R Siegel
	 

	 	 	 	 
	 	 	Name: Gary R Siegel

Title: Chief Operation Officer
	 
	 	 	 	 
	 

	 	 	 	(SEAL)
	 
	 	 	 	 

GUARANTORS:

	 	 	 	 	 
	REPUBLIC PROPERTY
TRUST, 
a Maryland real estate investment trust
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Gary R Siegel
	 

	 	 	 	 
	 	 	Name: Gary R Siegel

Title: Chief Operation Officer
	 
	 	 	 	 
	RPT PRESIDENTS PARK
LLC, 
a Delaware limited liability company
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Gary R Siegel
	 

	 	 	 	 
	 	 	Name: Gary R Siegel

Title: Chief Operation Officer
	 
	 	 	 	 
	PRESIDENTS PARK I
LLC, 
a Delaware limited liability company
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Gary R Siegel
	 

	 	 	 	 
	 	 	Name: Gary R Siegel

Title: Chief Operation Officer

[SIGNATURES CONTINUED ON NEXT PAGE]

4

 

	 	 	 	 	 
	PRESIDENTS PARK II
LLC,
 a Delaware limited liability company
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Gary R Siegel
	 

	 	 	 	 
	 	 	Name: Gary R Siegel

Title: Chief Operation Officer
	 
	 	 	 	 
	PRESIDENTS PARK III
LLC, 
a Delaware limited liability company
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Gary R Siegel
	 

	 	 	 	 
	 	 	Name: Gary R Siegel

Title: Chief Operation Officer
	 
	 	 	 	 
	RKB DULLES TECH
LLC, 
a Delaware limited liability company
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Gary R Siegel
	 

	 	 	 	 
	 	 	Name: Gary R Siegel

Title: Chief Operation Officer

[SIGNATURES CONTINUED ON NEXT PAGE]

5

 

	 	 	 	 	 
	 	 	LENDERS:
	 
	 	 	 	 
	 	 	KEYBANK NATIONAL ASSOCIATION, individually as a Lender and as Agent
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Michael Szuba
	 

	 	 	 	 
	 	 	Name: Michael Szuba

Title: Vice President
	 
	 	 	 	 
	 	 	SUNTRUST BANK
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Nancy B. Richards
	 

	 	 	 	 
	 	 	Name: Nancy B. Richards

Title: Senior Vice President
	 
	 	 	 	 
	 	 	CHARTER ONE BANK, N.A.
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Michele S. Jawyn
	 

	 	 	 	 
	 	 	Name: Michele S. Jawyn

Title: Vice President
	 
	 	 	 	 
	 	 	RAYMOND JAMES BANK, FSB
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Steven Paley
	 

	 	 	 	 
	 	 	Name:Steven Paley

Title: Vice President
	 
	 	 	 	 
	 	 	PNC BANK, NATIONAL ASSOCIATION
 
	 

	 	By:
	 	/s/ Timothy P. Gleeson
	 

	 	 	 	 
	 	 	Name: Timothy P. Gleeson

Title: Vice President

[SIGNATURES CONTINUED ON NEXT PAGE]

6

 

	 	 	 	 	 
	 	 	SOVEREIGN BANK:
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	Name:	 	 
	 

	 	 	 	 
	 

	 	Title:	 	 
	 

	 	 	 	 
	 
	 	 	 	 
	 	 	WACHOVIA BANK, NATIONAL ASSOCIATION
	 
	 	 	 	 
	 

	 	By:
	 	/s/Amit Khimji
	 

	 	 	 	 
	 	 	Name: Amit Khimji

Title: Vice President
	 
	 	 	 	 
	 	 	EMIGRANT BANK
	 
	 	 	 	 
	 

	 	By:
	 	/s/ Russell T. Wyman
	 

	 	 	 	 
	 	 	Name: Russell T. Wyman

Title: Vice President

7

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