Marketing technology firm SocialCode inked a deal for new space at Metropolitan Square as the building's landlord seeks to battle back from a pair of big law firm losses. The company, launched about eight years ago by The Washington Post Co. and now owned by Graham Holdings Co. (NYSE: GHC), leased about 15,000 square feet at 655 15th St. NW a few blocks from the White House. Social Code is relocating from 1133 15th St. NW. The landlord, Boston Properties (NYSE: BXP), has inked about 151,600 square...