Miami Beach Federal's main office was at the corner of Lincoln Road and Washington Avenue. In 1964 they also had locations at:

South Shore: 755 Washington Avenue, Miami Beach
North Shore: 301 71st Street, Miami Beach
Sunny Isles: 260 Sunny Isles Boulevard, Sunny Isles
Norwood: 18330 NW 7th Avenue (in the Fredrich's shopping center until they built a standalone building on the opposite corner at 650 NW 183rd Street - since demolished and now a vacant lot)

My father John M. Boyd worked at the main office on Lincoln Road from the early-mid 1950's until December 1960 when he transferred to the new Norwood branch, Miami Beach Federal's first branch on the mainland. The Norwood branch opened on Thursday, January 5, 1961. He remained there until September 1975 when he retired. The name was changed to Financial Federal sometime in the early 1970's as I recall, then it became NationsBank and it has become Bank of America.