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





           Consent of Independent Registered Public Accounting Firm


We consent to the references to our firm under the captions "Financial
Highlights" in the Class A, Class B, and Class C Shares' Prospectus and
"Independent Registered Public Accounting Firm" in the Class A, Class B, and
Class C Shares' Statement of Additional Information in Post-Effective Amendment
Number 61 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 on Federated Municipal Securities Fund, Inc. included
in the Annual Report to Shareholders for the fiscal year ended March 31, 2006.



                                                ERNST & YOUNG LLP


Boston, Massachusetts
May 25, 2006