<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
------------------------
AMENDMENT NO. 4
(AMENDED FINAL AMENDMENT)
TO
SCHEDULE 14D-1
Tender Offer Statement Under Section 14(d)(1)
of the Securities Exchange Act of 1934
------------------------
ANGELES PARTNERS XII
(Name of Subject Company)
ERP OPERATING LIMITED PARTNERSHIP
(Bidder)
LIMITED PARTNERSHIP INTERESTS
(Title of Class of Securities)
NONE
(CUSIP Number of Class of Securities)
------------------------
Copy to:
Bruce C. Strohm, Esq. Don S. Hershman, Esq.
Equity Residential Properties Trust Beth M. Gottlieb, Esq.
Two North Riverside Plaza Much Shelist Freed
Chicago, Illinois 60606 Denenberg Ament &
(312) 474-1300 Rubenstein, P.C.
200 North LaSalle Street
Suite 2100
Chicago, Illinois 60601
(312) 346-3100
(Name, Address and Telephone Number of
Persons Authorized to Receive Notices and
Communications on Behalf of Bidder)
Calculation of Filing Fee
Transaction Valuation*: $36,445,170 Amount of Filing Fee: $7,289.03
* For purposes of calculating the filing fee only. Assumes the purchase of
44,718 Units at a purchase price equal to $815 per Unit in cash.
[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: $7,289.03 Filing Party: ERP Operating
Limited Partnership
Form or Registration Number: Schedule 14D-1 Date Filed: September 2, 1999,
amended on September 10, 1999,
September 23, 1999 and
October 25, 1999
[ ] 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.
[ ] 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. [X]
<PAGE>
-----------------------
CUSIP NO. None 14D-1 Page 1 of 2 pages
-----------------------
------------------------------------------------------------------------------
NAME OF REPORTING PERSON
1 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
ERP Operating Limited Partnership 36-3894853
------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [X]
------------------------------------------------------------------------------
SEC USE ONLY
3
------------------------------------------------------------------------------
SOURCE OF FUNDS*
4
WC
------------------------------------------------------------------------------
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEM 3 [_]
5
------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
6
Illinois
------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 34
7
------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (7) EXCLUDES CERTAIN SHARES*
8
[_]
------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)
9
Less than 1%
------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
10
PN
------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
Page 2 of 2 pages
This statement (the "Statement") constitutes Amendment No. 4 to the initial
Schedule 14D-1 of ERP Operating Limited Partnership ("ERP") relating to ERP's
offer to purchase limited partnership interests (the "Units") of Angeles
Partners XII. The item number and response thereto are set forth below in
accordance with the requirements of Schedule 14D-1.
Item 8. Interest in Securities of the Subject Company.
At 12:00 midnight, central standard time, on October 15, 1999 the Offer
expired pursuant to its terms. A total of 34 Units, representing less than 1% of
the outstanding Units, were validly tendered and not withdrawn pursuant to the
Offer. ERP has accepted for payment all of those Units at $815 per Unit.
SIGNATURES
After due inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this Statement is true, complete and correct.
Dated: June 15, 2000
ERP OPERATING LIMITED PARTNERSHIP
By: EQUITY RESIDENTIAL PROPERTIES
TRUST, General Partner
By: /s/ Bruce C. Strohm
-------------------
Its: Executive Vice President, General
---------------------------------
Counsel and Secretary
---------------------
