SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                          SCHEDULE TO (AMENDMENT NO. 1)

        TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                      Angeles Opportunity Properties, Ltd.
- --------------------------------------------------------------------------------
                        (Name of Subject Company (Issuer)

                             AIMCO Properties, L.P.
- --------------------------------------------------------------------------------
                       (Names of Filing Persons - Offeror)

                            Limited Partnership Units
- --------------------------------------------------------------------------------
                           (Title of Class Securities)

                                      None
- --------------------------------------------------------------------------------
                       (CUSIP Number of Class Securities)

                                 Patrick J. Foye
                   Apartment Investment and Management Company
                           Colorado Center, Tower Two
                   2000 South Colorado Boulevard, Suite 2-1000
                             Denver, Colorado 80222
                                 (303) 757-8101
- --------------------------------------------------------------------------------
            Name, address, and telephone numbers of person authorized
       to receive notices and communications on behalf of filing persons)

                                    Copy to:

                                 Joseph A. Coco
                    Skadden, Arps, Slate, Meagher & Flom LLP
                                Four Times Square
                            New York, New York 10036
                                 (212) 735-3000

                                       and

                              Jonathan L. Friedman
                    Skadden, Arps, Slate, Meagher & Flom LLP
                             300 South Grand Avenue
                          Los Angeles, California 90071
                                 (213) 687-5000

                            Calculation of Filing Fee

<Table>
<Caption>
Transaction valuation*                                      Amount of filing fee
- ----------------------                                      --------------------

                                                         
$443,624.65                                                 $35.89
</Table>





*        For purposes of calculating the fee only. This amount assumes the
         purchase of 6,265 units of limited partnership interest of the subject
         partnership for $70.81 per unit. The amount of the filing fee,
         calculated in accordance with Section 14(g)(1)(B)(3) and Rule 0-11(d)
         under the Securities Exchange Act of 1934, as amended, equals $80.90
         per million of the aggregate amount of cash offered by the bidder.

[X]      Check the box if any part of the fee is offset as provided by Rule
         0-11(a)(2) and identify the filing with which the offsetting fee was
         previously paid. Identify the previous filing by registration statement
         number, or the Form or Schedule and the date of its filing.

Amount Previously Paid: $35.89              Filing Party: AIMCO Properties, L.P.

Form or Registration No.: Schedule TO       Date Filed: November 12, 2003


[ ] Check the box if the filing relates solely to preliminary communications
made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the
statement relates:

[X] third-party tender offer subject to Rule 14d-1

[ ] issuer tender offer subject to Rule 13e-4

[X] going-private transaction subject to Rule 13e-3

[ ] amendment to Schedule 13D under Rule 13d-2

Check the following box if the filing is a final amendment reporting the results
of the tender offer: [ ]




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                         AMENDMENT NO. 1 TO SCHEDULE TO


         This Amendment No. 1 amends and supplements the Tender Offer Statement
and Rule 13e-3 Transaction Statement on Schedule TO (the "Schedule TO") relating
to the offer by AIMCO Properties, L.P., a Delaware limited partnership, to
purchase units of limited partnership interest ("Units") of Angeles Opportunity
Properties, Ltd., a California limited partnership (the "Partnership"), at a
price of $70.81 per unit in cash, subject to the conditions set forth in the
Litigation Settlement Offer dated November 12, 2003, and in the related Letter
of Transmittal (which, together with any supplements or amendments, collectively
constitute the "Offer"). Copies of the Litigation Settlement Offer and the
Letter of Transmittal were filed with the Schedule TO as Exhibits (a)(1) and
(a)(2), respectively. The item numbers and responses thereto below are in
accordance with the requirements of Schedule TO.

ITEM 12. EXHIBITS.

Item 12 of the Schedule TO is amended and supplemented as follows:

(a)(5) Supplement to Litigation Settlement Offer dated December 5, 2003.




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                                    SIGNATURE

                  After due inquiry and to the best of its knowledge and belief,
the undersigned hereby certify that the information set forth in this statement
is true, complete and correct.


Date: December 5, 2003

                                             AIMCO PROPERTIES, L.P.

                                             By: AIMCO-GP, INC.
                                                 Its General Partner


                                             By: /s/ Patrick J. Foye
                                                 -------------------------------
                                                 Patrick J. Foye
                                                 Executive Vice President





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                                  EXHIBIT INDEX


<Table>
<Caption>
Exhibit No.       Description
- -----------       -----------

               
(a)(5)            Supplement to Litigation Settlement Offer dated December 5, 2003.
</Table>



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