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                                                                   Exhibit 3.143
                           ARTICLES OF INCORPORATION
                              (PURSUANT TO NRS 78)
                                STATE OF NEVADA
                               Secretary of State

(For filing office use)                                  (For filing office use)
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
No. 7967-96         IMPORTANT: Read instructions on reverse side before
    -------         completing this form.
                    TYPE OR PRINT (BLACK INK ONLY)

1.   NAME OF CORPORATION: AGH LP, INC.
                          ------------------------------------------------------

2.   RESIDENT AGENT: (designated resident agent and his STREET ADDRESS in
     Nevada where process may be served)

     Name of Resident Agent:    THE CORPORATION TRUST COMPANY OF NEVADA
                                ------------------------------------------------

     Street Address: One East First Street                  Reno, NV      89501
                     -----------------------------------------------------------
                     Street No.         Street Name           City        Zip

3.   SHARES: (number of shares the corporation is authorized to issue)
     Number of shares with par value: 200    Par value:  0.01   Number of
     shares without par value: ______

4.   GOVERNING BOARD: shall be styled as (check one): X   Directors     Trustees
                                                     -----         -----

     The FIRST BOARD OF DIRECTORS shall consist of 1 members and the names and
     addresses are as follows (attach additional pages if necessary):

                                               c/o American General Hospitality
                                               Corporation, 3860 W. Northwest
     Steven D. Jorns                           Highway,
     -----------------------------             ---------------------------------
     Name                                      Address            City/State/Zip
                                                  Suite 300, Dallas, TX 75220

     -----------------------------             ---------------------------------
     Name                                      Address            City/State/Zip

5.   PURPOSE (optional - see reverse side): The purpose of the corporation
     shall be:

     ---------------------------------------------------------------------------

6.   OTHER MATTERS: This form includes the minimal statutory requirements to
     incorporate under NRS 78. You may attach additional information pursuant
     to NRS 78.037 or any other information you deem appropriate. If any of the
     additional information is contradictory to this form it cannot be filed
     and will be returned to you for correction. Number of pages attached ______

7.   SIGNATURES OF INCORPORATORS. The names and addresses of each of the
     incorporators signing the articles
     (Attach additional pages if there are more than two incorporators.)

<Table>
                                           
     Donna M. Liggon                            Christine M. Brunke
     ------------------------------             ---------------------------------------
     Name (print)                               Name (print)

     1633 Broadway, New York, New York 10019    1633 Broadway, New York, New York 10019
     ---------------------------------------    ---------------------------------------
     Address                  City/State/Zip    Address                  City/State/Zip

     /s/ Donna M. Liggon                        /s/ Christine M. Brunke
     ------------------------------             ---------------------------------------
     Signature                                  Signature

     State of New York   County of New York     State of New York   County of New York

     This instrument was acknowledged before    This instrument was acknowledged before
     me on April 9, 1996, by                    me on April 9, 1996, by

                       Christine M. Brunke                        Donna M. Liggon
                       -------------------                        ---------------
                       Name of Person                             Name of Person

     as incorporator                            as incorporator
     of AGH, LP, INC.                           of AGH, LP, INC.
        ------------------                         ---------------------
     (name of party on behalf of whom             (name of party on behalf of whom
     instrument was executed)                     instrument was executed)

     /s/ STEPHEN ADAMO                          /s/ STEPHEN ADAMO
     ------------------------                   ---------------------------
     Notary Public Signature                    Notary Public Signature
     [Notary Public Official Stamp]             [Notary Public Official Stamp]
     (affix notary stamp or seal)               (affix notary stamp or seal)
</Table>

8.   CERTIFICATE OF ACCEPTANCE OF APPOINTMENT OF RESIDENT AGENT

     The Corporation Trust Company of Nevada hereby accept appointment as
     Resident Agent for the above corporation.
     The Corporation Trust Company of Nevada By:         /s/ Illegible Signature
     ----------------------------------------------      -----------------------
     Signature of Resident Agent  (Assistant Secretary)
   2
        NOV 12 1996
        No C7967-96
     /s/ Dean Heller
DEAN HELLER, SECRETARY OF STATE

                            CERTIFICATE OF AMENDMENT

                                       OF

                           ARTICLES OF INCORPORATION

                                       OF

                                  AGH LP, INC.

     AGH LP, INC., a corporation organized under the laws of the State of
Nevada, by its President and Secretary, do hereby certify:

          1.   That the board of directors of said corporation at a meeting
duly convened and held on the 11th day of July, 1996, passed a resolution
declaring that the following article be included in the Articles of
Incorporation to read as follows:

          "Article 9. THERE CAN BE NO CONTACT WITH THE STATE OF TEXAS AND ANY
          SUCH ACTS WILL BE DEEMED VOID AB INITIO UNDER THE ARTICLES OF
          INCORPORATION."

          2.   That the number of shares of the corporation outstanding and
entitled to vote on an amendment to the articles of incorporation is Ten Shares
of Common Stock, par value $.01 per share; that the said change and amendment
has been consented to and authorized by the written consent of the sole
stockholder holding all of said shares of stock outstanding and entitled to
vote thereon.

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     IN WITNESS WHEREOF, the said AGH LP, INC. has caused this certificate to be
signed by its President, and its Secretary, and its corporate seal to be hereto
affixed this 18th day of September, 1996.

                                             AGH LP, INC.

                                             By: /s/ Steven D. Jorns
                                                 -------------------------------
                                                 Name: Steven D. Jorns
                                                 Title: President

                                             By: /s/ Kenneth E. Barr
                                                 -------------------------------
                                                 Name: Kenneth E. Barr
                                                 Title: Secretary

STATE OF NEW YORK  )
                   ) ss:
COUNTY OF NEW YORK )

     On September 18, 1996 personally appeared before me, a Notary Public,
        ------------------
            (date)
Steven D. Jorns and Kenneth E. Barr, who acknowledged that they executed the
above instrument.

                                                      Lorraine Michels
                                            ------------------------------------
                                                       Notary Public

                                                      Lorraine Michels
                                              Notary Public, State of New York
                                                       No. 52-4830738
(SEAL)                                          Qualified in Suffolk County
                                                 Commission Expires 2-28-98

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          AUG 03 1998
DEAN HELLER SECRETARY OF STATE
         No. C7962-96

             CERTIFICATE OF AMENDMENT OF ARTICLES OF INCORPORATION

                                  AGH LP. Inc.

                   ------------------------------------------
                              Name of Corporation

     We the undersigned Bruce G. Wiles and Kenneth E. Barr of AGH LP, Inc.
                        --------------     ---------------    ------------
                        Vice President         Secretary     Name of Corporation
do hereby certify:

     That the Board of Directors of said corporation at a meeting duly convened
     and held on the 28th day of July, 1998, adopted a resolution to amend the
     original articles as follows:

     Article 1. is hereby amended to read as follows:

     "1. The name of the corporation is MeriStar LP, Inc."

The number of shares of the corporation outstanding and entitled to vote on an
amendment to the Articles of Incorporation are 10 shares; that the said
change(s) and amendment has been consented to and approved by a majority vote
of the stockholders holding at least a majority of each class of stock
outstanding and entitled to vote thereon.

                              /s/ Bruce G. Wiles
                              -------------------------------------
                                          Vice President

                              /s/ Kenneth E. Barr
                              -------------------------------------
                                             Secretary

District of Columbia
- ----------------------- ss

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     On July 28, 1998, personally appeared before me, a Notary Public, Bruce G.
                                                                       --------
Wiles and Kenneth E. Barr,                      who acknowledged that they
- -----------------------------------------------
(Names of persons appearing and signing document)

executed the above instrument.

                                             /s/    Nicole V. Watson
                                             -----------------------------
                                                  Signature of Notary

                                            My Commission Expires March 14, 2002

(SEAL)
(NEV. -198- 7/27/90)