Established in 1972, ERA Pro Realty is one of the leading real estate firms in Maryland. Founded by Donald B. Smith, the firm holds licenses in Maryland, Virginia, West Virginia and Washington, D.C. It deals in the buying and selling of condos, town houses, farms, land, resorts and vacation properties. ERA Pro Realty also offers a variety of commercial properties and single-family and multifamily homes. The firm operates ERA.com, a Web site that provides access to homes for sale throughout the world for buyers and sellers. It additionally offers mortgage services and ERA Home Protection Plan. ERA Pro Realty maintains a location in Frederick, Md.