At such a hearing, the Town may modify the terms of the original notice as to the deficiencies and may give an extension of time within which they shall be cured. If the deficiencies set forth in the original notice or in the modifications thereof shall not be cured within 30 days or any extension thereof, the Town, in order to preserve the taxable values of the properties within the development and to prevent the common property from becoming a public nuisance, may enter upon said common open space and maintain it for a period of one year. Said entry and maintenance shall not vest in the public rights to use the common open space except when the same is voluntarily dedicated to the public by the residents and owners. Before the expiration of said year, the Town shall, upon its initiative or upon the request of the organization theretofore responsible for the maintenance of the common property, call a public hearing upon notice to such organization, or to the residents and owners of the development to be held by the Town, at which hearing such organization or the residents and owners of the development shall show cause why such maintenance by the Town shall not, at the election of the Town, continue for a succeeding year.