2. As used in this act:
"Hearing officer" means a person designated pursuant to subsection b. of section 3 of P.L.1993, c.127 (C.40:48-2.12p) to hear and determine proceedings under P.L.1993, c.127 (C.40:48-2.12n et seq.).
"Landlord" means the person or persons who own or purport to own a building in which there is rented or offered for rent housing space for living or dwelling under either a written or oral lease which building contains no more than four dwelling units. In the case of a mobile home park, "landlord" shall mean the owner of an individual dwelling unit within the mobile home park.
"Substantiated complaint" means a complaint which may form the basis for proceedings in accordance with subsection a. of section 4 of P.L.1993, c.127 (C.40:48-2.12q).