No person, specifically including but not limited to those persons commonly known as "real estate agents," "brokers" or "salespersons," shall assist, aid or facilitate in the rental, sale, use or occupancy of any residential premises within the Borough of Harrington Park which is used or occupied or intended to be used or occupied in violation of the Zoning Ordinance of the Borough of Harrington Park. For purposes of this article, the acts of listing for rental or sale, advertising or otherwise offering for rent, lease or sale any residential premises within the Borough of Harrington Park which are used or occupied or intended to be used or occupied in violation of the Zoning Ordinance of the Borough of Harrington Park shall be deemed to constitute a violation of this article. Any person who is to receive a commission, profit or other form of remuneration or emolument as a result of a rental, lease or sale of residential premises shall have a duty to make reasonable inquiry to determine whether or not the use or occupancy or intended use or occupancy is or will be in violation of the Zoning Ordinance of the Borough of Harrington Park.