SUPPLEMENT TO
                           LITIGATION SETTLEMENT OFFER
                                      AIMCO
                             AIMCO PROPERTIES, L.P.
        is offering to purchase any and all limited partnership units in

                               ANGELES PARTNERS X
                           FOR $68.94 PER UNIT IN CASH

                       OFFER EXTENDED TO DECEMBER 19, 2003

         On November 10, 2003, we commenced a litigation settlement offer to
acquire all of the outstanding units of your partnership as part of a
court-approved settlement of class and derivative litigation brought on behalf
of limited partners in your partnership and others. The expiration date of our
offer as set forth in the Litigation Settlement Offer dated November 10, 2003
(the "Litigation Settlement Offer") was December 10, 2003. We have extended our
offer, and our offer and your withdrawal rights will now expire at midnight, New
York City time, on December 19, 2003 (unless we further extend the deadline).

         Our offer is made upon the terms and subject to the conditions set
forth in the Litigation Settlement Offer, this Supplement and the accompanying
Letter of Transmittal (which, together with any supplements or amendments,
collectively constitute the "Offer"). Upon the terms and subject to the
conditions set forth in the Offer, we will accept any and all units validly
tendered in response to our Offer.

         You may withdraw your tender of units pursuant to the Offer at any time
prior to December 19, 2003, including any extensions.

         You will not pay any partnership transfer fees if you tender your units
pursuant to the Offer. You will pay any other fees or costs, including any
transfer taxes.

         Our offer price will be reduced for any distributions subsequently made
or declared by your partnership prior to the expiration of our Offer.

         If you have already tendered your units in accordance with the original
letter of transmittal that was mailed with the Litigation Settlement Offer, you
need not take any further action to continue to tender your units.

         SEE "RISK FACTORS" BEGINNING ON PAGE 4 OF THE LITIGATION SETTLEMENT
OFFER FOR A DESCRIPTION OF RISK FACTORS THAT YOU SHOULD CONSIDER IN CONNECTION
WITH OUR OFFER.

         If you decide to accept our Offer, you must complete and sign the
enclosed Letter of Transmittal in accordance with the instructions thereto and
mail or deliver the signed Letter of Transmittal and any other required
documents to The Altman Group, Inc., which is acting as Information Agent in
connection with our Offer, at one of its addresses set forth below. QUESTIONS
AND REQUESTS FOR ASSISTANCE OR FOR ADDITIONAL COPIES OF THE LITIGATION
SETTLEMENT OFFER, THE LETTER OF TRANSMITTAL OR FOR A COMPLETE COPY OF THE
APPRAISAL OF ANY OF YOUR PARTNERSHIP'S PROPERTY MAY ALSO BE DIRECTED TO THE
INFORMATION AGENT AT (800) 467-0821.

                                December 5, 2003




         Neither the court nor counsel for the parties in the class and
derivative litigation make any recommendation regarding whether you should
accept the Offer. You are encouraged to carefully review the Litigation
Settlement Offer and the executive summary of the independent appraiser's report
attached as Annex II thereto, this Supplement, the accompanying Letter of
Transmittal, and any other information available to you and to seek the advice
of your independent lawyer, tax advisor and/or financial advisor before deciding
whether or not to accept the Offer.

         THE OFFER WAS OFFERED TO ALL CURRENT UNITHOLDERS WHETHER OR NOT THEY
REQUESTED EXCLUSION FROM THE SETTLEMENT CLASS. IF YOU REQUESTED EXCLUSION FROM
THE SETTLEMENT CLASS BUT TENDER YOUR UNITS, BY SIGNING THE ENCLOSED LETTER OF
TRANSMITTAL, YOU WILL RELEASE US FROM CLAIMS THAT YOU WOULD OTHERWISE HAVE
PRESERVED BY REQUESTING EXCLUSION. IF YOU DID NOT REQUEST EXCLUSION, YOU WILL
RELEASE ANY KNOWN OR UNKNOWN CLAIMS ARISING OUT OF THE CLASS AND DERIVATIVE
LITIGATION IF THE JUDGMENT APPROVING THE SETTLEMENT IS AFFIRMED ON APPEAL. BY
EXECUTING THE ENCLOSED LETTER OF TRANSMITTAL, MOREOVER, YOU WILL RELEASE THOSE
CLAIMS EVEN IF THE JUDGMENT IS REVERSED OR OTHERWISE VACATED ON APPEAL.


                     THE INFORMATION AGENT FOR THE OFFER IS:

                             THE ALTMAN GROUP, INC.

     By Mail:               By Overnight Courier:               By Hand:

   P.O. Box 238            1275 Valley Brook Avenue     1275 Valley Brook Avenue
Lyndhurst, NJ 07071          Lyndhurst, NJ 07071           Lyndhurst, NJ 07071

                          For information, please call:

                            TOLL FREE: (800) 467-0821

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