Minimum common open space. The minimum common open space shall be not less than 20% of the net tract area. Such common open space shall be set aside and deed-restricted as permanent common open space and, unless offered to and accepted by the Township of Verona, shall be deeded to a corporation, association or other organization established for the purpose of owning and maintaining all of the common elements, including open space, recreational facilities, parking areas, roads, sidewalks and other improvements and areas designed for use in common by the residents of the development as provided at N.J.S.A. 40:55D-43. The documents creating such corporation, association or other organization shall be submitted fur review and approval by the Verona Township Attorney.