Sometime within the next two months, the city will officially begin seeking developers for a roughly 160-acre parcel straddling its border with Naugatuck. Mackenzie Demac, chief of staff to Mayor Neil M. O’Leary, said the city will release a request-for-proposal within 60 days. City officials are looking for job creation and future taxes. Ideally, they’re looking for a single structure of up to near 1 million square feet. They’ve also drafted up a concept in which the property could be split among several industrial or commercial buildings. O’Leary and Naugatuck Mayor N. Warren “Pete” Hess struck a deal to jointly develop the property, accessing it through a Naugatuck industrial park.