Prior to the sale of any lots within the cluster residential development, the developer shall execute and record a declaration of covenants and restrictions (after approval thereof by the attorney for the Land Use Board as to form and by the Land Use Board as to adequacy) by the terms of which all lands within the cluster residential development, and the owners thereof, shall at all times be bound to an annual assessment, according to an equitable formula based upon lot ownership, to meet the expenses of maintaining the common open space and all facilities therein. Such declaration of covenants and restrictions shall contain clear, unequivocal provisions creating an enforceable lien in favor of the property owners' association upon each and every lot within the development (regardless of whether or not a home shall have been constructed thereon and whether or not the vacant lot shall have been sold by the developer) for any unpaid annual assessment by the property owners' association. The declaration of covenants and restrictions shall also make the Township of Oxford a party thereto, granting to the Municipality express power to compel the association to perform its obligations relative to the maintenance of the common open space and all facilities thereon, and providing that, in case of default by the association, the Municipality, subject to the giving of notice and hearings provided in N.J.S.A. 40:55D-43, shall cause such work to be done as may be reasonably necessary to properly maintain such common land and facilities, and, in addition, the Municipality, in the event of the failure of the association to maintain the common open space in a reasonable condition, shall have the right, after notice and hearing as provided in N.J.S.A. 40:55D-43, to maintain said common open space from year to year and to charge the cost thereof ratably against each and every lot in the development for its proportionate share. Such charge shall be a tax lien upon such properties, payable with the taxes. The declaration shall also provide that each deed for each lot shall contain a specific covenant to run with the title to such lot, obligating the owner to promptly pay the annual assessments of the property owners' association and providing for a lien therefor upon the lot until paid.