Following an environmental cleanup, a lengthy entitlement process and several hurdles along the way, Key Properties has marked the completion of a 107,000-square-foot shopping center known as Hanover Crossroads. The complex at 110 East Hanover Ave. became fully leased within 15 months of breaking ground — anchored by major tenants such as T.J.Maxx, HomeGoods, QuickChek and AutoZone — as other new retail projects have taken shape nearby.