Mobtown Beat | Business Hot Contract City Bribery Scandal Tied to Influential Father and Son BOILERPLATE: Allstate Boiler Service, a company owned by Gilbert Sapperstein and housed in a building owned by his son, Mark Sapperstein, is involved in bribery scandal being investigated by the state. By Van Smith Mark Sapperstein owns 113 W. Hamburg St., an 8,000-square-foot commercial building in Sharp-Leadenhall. The South Baltimore property, though devoid of signs, houses Allstate Boiler Service, a company owned by Gilbert Sapperstein, Mark’s 73-year-old father. On Jan. 7, Allstate Boiler’s bookkeeper and office manager, Ida Marie Beran, pled guilty in a bribery...