At such hearing, the Borough Council may modify the terms of the original notice as to deficiencies and may give a reasonable extension of time not to exceed 65 days within which they shall be cured. If the deficiencies set forth in the original notice or in the modification thereof shall not be cured within said 35 days or any permitted extension thereof, the Borough, in order to preserve the open space and maintain the same for a period of one year, may enter upon and maintain such land. Said entry and maintenance shall not vest in the public any rights to use the open space except when the same is voluntarily dedicated to the public by the owners. Before the expiration of said year, the Borough shall, upon its initiative or upon the request of the organization theretofore responsible for the maintenance of the open space, call a public hearing upon 15 days' written notice to such organization and to the owners of the development to be held by the Borough Council, at which hearing such organization and the owners of the development shall show cause why such maintenance by the Borough shall not, at the election of the Borough, continue for a succeeding year. If the Borough Council shall determine that such organization is ready and able to maintain said open space in a reasonable condition, the Borough shall cease to maintain said open space at the end of said year. If the Borough Council shall determine that such organization is not ready and able to maintain said open space in a reasonable condition, the Borough may, in its discretion, continue to maintain said open space during the next succeeding year, subject to a similar hearing and determination in each year thereafter. The decision of the Borough Council in any such case shall constitute a final administrative decision subject to judicial review. The cost of such maintenance by the Borough shall be assessed pro rata against the properties within the development that have a right of enjoyment of the open space in accordance with assessed value at the time of imposition of the lien, and shall become a lien and tax on said properties and be added to and be a part of the taxes to be levied and assessed thereon, and enforced and collected with interest by the same officers and in the same manner as other taxes.