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                                                                  Exhibit (a)(1)




                               ANGELES PARTNERS XI
                     1873 South Bellaire Street, 17th Floor
                             Denver, Colorado 80222

                                November 11, 1999


Dear Limited Partner:


       Enclosed is the Schedule 14D-9 which was filed by Angeles Partners XI
(the "Partnership") with the Securities and Exchange Commission in connection
with an offer by AIMCO Properties, L.P., a Delaware limited partnership, to
purchase units of limited partnership interest in the Partnership.

       The Partnership, through its general partner, Angeles Realty Corporation
II (the "General Partner"), is required by the rules of the Securities and
Exchange Commission to make a recommendation as to whether you should accept or
reject such offer, or whether the Partnership is remaining neutral with respect
to such offer. THE PARTNERSHIP AND THE GENERAL PARTNER ARE REMAINING NEUTRAL AND
MAKING NO RECOMMENDATION AS TO WHETHER LIMITED PARTNERS SHOULD TENDER OR REFRAIN
FROM TENDERING THEIR UNITS. Although the General Partner believes the offer is
fair, limited partners must make their own decision whether or not to
participate in the offer, based upon a number of factors, including a limited
partner's financial position, the need or desire for liquidity, other available
financial opportunities, a limited partner's tax position, and the tax
consequences of selling one's units.

       Limited Partners should carefully read the enclosed Schedule 14D-9, the
Litigation Settlement Offer of AIMCO Properties, L.P., dated November 11, 1999
relating to the offer to acquire units of the Partnership (the "Litigation
Settlement Offer"), and the related Letter of Transmittal and Instructions.
Certain information in the Schedule 14D-9 is incorporated by reference to the
Litigation Settlement Offer.

       Please note that the General Partner is an affiliate of AIMCO.



                              ANGELES REALTY CORPORATION II
                              General Partner




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