Westborough, Mass. — Grossman Development Group (GDG) has acquired Bay State Commons, a 261,672-square-foot retail center located in Westborough, approximately 30 miles west of Boston. Roche Bros. anchors the property, and other tenants include Boston Interiors, Reliant Medical, Boston Ski & Tennis, Ted’s Montana Grill and Panera Bread. GDG purchased the property with a partnership doing business as Baystate Westborough LLC, which includes Mark Reardon. Todd Alexander of Kelleher & Sodowsky handles leasing at the development.