Exhibit j under Form N-1A
                                               Exhibit 23 under Item 601/Reg S-K



  CONSENT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We  consent  to  the  references  to  our  firm  under  the  captions "Financial
Highlights" in the Supplement to the Prospectus dated May 31, 2006 for Federated
Municipal  Securities  Fund, Inc. and under the caption "Independent  Registered
Public Accounting Firm"  in  the  Statement  of  Additional Information in Post-
Effective Amendment Number 65 to the Registration  Statement  (Form N-1A, No. 2-
57181) of Federated Municipal Securities Fund, Inc. and to the  incorporation by
reference of our report dated May 10, 2006, except for Notes 2, 4,  6,  8, 9 and
10  as to which the date is February 23, 2007, included in the Annual Report  to
Shareholders  (Restated  February  23,  2007)  of Federated Municipal Securities
Fund, Inc. for the fiscal year ended March 31, 2006.




Boston, Massachusetts
April 5, 2007