WASHINGTON, DC-The General Services Administration is negotiating a deal to take the remaining vacant space in Constitution Center, a 1.4-million-square-foot building at 400 Seventh St. SW.

NEW YORK CITY-Casserole Labs is leaving a SoHo office building for a space in the Vinegar Hill area of Brooklyn's Dumbo.

NEW YORK CITY-The Lightstone Group has secured $51 million in construction loan for a new rental project in Long Island City, Queens.

NEW YORK CITY-Fareportal, which signed a seven-year sublease deal for 40,848 square feet, has settled into a 7,000-square-foot space now.

CHICAGO-Musa Tadros, president of Frankfort-based Crown Commercial Real Estate & Development Inc., has hired New York-based Cushman & Wakefield Inc. to find tenants for the 456,441-square-foot office building at 105 W. Adams St.

CHICAGO-ShopperTrak RCT Corp. is relocating its corporate headquarters from 200 W. Monroe St. to Willis Tower at 233 S. Wacker Drive.

DANVERS, MA-Residential and commercial developer Landers Symes has bought 199 Rosewood Dr., a Class A office property in Danvers.

CHICAGO-The TIF will help fund the $114-million, mixed-use venture, which is being developed by Antheus Capital.