NEW YORK and ROCKVILLE, Md., 2015-11-5 — /EPR Retail News/ — Saks Fifth Avenue OFF 5TH and Federal Realty Investment Trust (NYSE: FRT) are pleased to announce that Saks OFF 5TH will open a new store within the Congressional Plaza shopping center located in Rockville, Maryland. Expected to open Fall 2016, the new 40,000 sq. ft. store…