WILMINGTON, DEL. — Business security firm Corporation Service Co. (CSC) has acquired the 43,000-square-foot PA Railroad office building in Wilmington, a southwestern suburb of Philadelphia, for $4.8 million. Located at 112 S. French St., the six-story building is situated adjacent to the Wilmington train station served by Amtrak and Southeastern Pennsylvania Transportation Authority. The building will be rebranded as CSC Station and will be repositioned to include a new two-story atrium, coworking space and traditional office space. Renovations are slated for completion this fall. Summit Properties Inc. was the seller.