“Mobile home park” means a tract of land or 2 or more contiguous tracts of land upon which contain sites with the necessary utilities for 5 or more independent mobile homes for permanent habitation either free of charge or for revenue purposes, and shall include any building, structure, vehicle, or enclosure used or intended for use as a part of the equipment of such mobile home park. Separate ownership of contiguous tracts of land shall not preclude the tracts of land from common licensure as a mobile home park if they are maintained and operated jointly. Neither an immobilized mobile home nor a motorized recreational vehicle shall be construed as being a part of a mobile home park.