CORPORATE INCOME FUND PREFERRED SEC PORT SER 101 DEF ASS FND, 487, EX-99.C2, 2000-08-10

CORPORATE INCOME FUND PREFERRED SEC PORT SER 101 DEF ASS FND
487, EX-99.C2, 2000-08-10

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<PAGE>
                                                                     EXHIBIT 4.1

Interactive Data
14 Wall Street
New York, N.Y. 10005
212-285-0700


                                                                 AUGUST 10, 2000



MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED
DEAN WITTER REYNOLDS INC.
PAINEWEBBER INCORPORATED
C/O MERRILL LYNCH, PIERCE, FENNER & SMITH
DEFINED ASSET FUNDS
P.O. BOX 9051
PRINCETON, NJ 08543-9051

THE BANK OF NEW YORK
UNIT INVESTMENT TRUST DIVISION
P.O. BOX 974
WALL STREET STATION
NEW YORK, NY 10268-0974

RE: CORPORATE INCOME FUND, PREFERRED SECURITIES PORTFOLIO SERIES 101, DEFINED
    ASSET FUNDS (A UNIT INVESTMENT TRUST) UNITS OF FRACTIONAL UNDIVIDED
    INTEREST--REGISTERED UNDER THE SECURITIES ACT OF 1933, FILE NO. 333-30446


Gentlemen:

    We have examined the Registration Statement for the above captioned Fund.

    We hereby consent to the reference to Interactive Data Services, Inc. in the
Prospectus and Registration Statement for the above-captioned Fund and to the
evaluations of the Obligations prepared by us which are referred to in such
Prospectus and Registration Statement.

    You are authorized to file a copy of this letter with the Securities and
Exchange Commission.

                                          Sincerely,

                                          James Perry
                                          Vice President