Exhibit (a)

JOINT FILING AGREEMENT

     The undersigned hereby agree that Amendment No. 26 to the Statement on Schedule 13D relating to units of limited partnership interest in Angeles Partners XI, filed by the undersigned, and all further amendments to such Statement on Schedule 13D, shall be filed on behalf of each of them. This Agreement is intended to satisfy Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Dated: August 28, 2007

AIMCO PROPERTIES, L.P.
By:	AIMCO-GP, INC.
	Its General Partner
AIMCO-GP, INC.
APARTMENT INVESTMENT AND MANAGEMENT COMPANY
AIMCO IPLP, L.P.
By:	AIMCO/IPT, INC. Its General Partner
AIMCO/IPT, INC.
COOPER RIVER PROPERTIES, L.L.C.
By:	/s/ Martha Long Martha Long Senior Vice President

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