Groton — The town said it is giving Respler Homes 30 days to fulfill obligations outlined in the development agreement for the Mystic Education Center — or the town will consider terminating the agreement with the developer. Attorneys for the town and for Respler Homes recently exchanged letters and are at odds over each other’s responsibilities for the proposed redevelopment process outlined in the development agreement for the former Mystic Oral School property. Respler Homes’ attorney had sent a letter on July 13 requesting that the town file a proposed zoning amendment application for the property “as soon as reasonably possible.” Without a zoning amendment, it said, the developer is at a "standstill" and cannot finalize its development plan. The attorney claimed the development agreement outlines that the town is responsible for changing its zoning regulations, "subject to reasonable conditions and approvals," for the project.