D & S Realty, Inc., a sizable commercial property owner in the Worcester market recently purchased 70 Hartwell St. for $2.6 million. Mercantile Image Press had occupied the property, prior to closing its doors in 2006. Soon after D & S Realty acquired the property, a lease was negotiated with Columbia Tech and DCI Engineering, both Worcester based subsidiaries of Coghlin Companies, Inc. William Kelleher and James Umphrey of Kelleher & Sadowsky Associates represented both the buyer and seller in the sale of the building, and also represented Columbia Tech in lease negotiations. The 53,000 s/f manufacturing facility was built in 2000.