(1) A Fair Housing Commission is hereby created to be composed of 5 members to be appointed by the Mayor. The members of the Commission shall select from among the members a chairman. All of the members of the commission shall serve without compensation. The Commission shall have power to hold hearings and conduct investigations in connection with any unfair rental practice upon complaint or upon its own initiative. The Commission shall have power to compel the attendance of witnesses and the production of documents as provided in Section 8-409 of The Philadelphia Home Rule Charter.