The purpose of sections 2.1102 to 2.1135 of this code is to provide necessary procedures and standards to carry out the powers granted to the city by ORS 280.410 to 280.485. ORS 280.410 to 280.485 authorize the city to issue revenue bonds to finance or refinance certain housing projects and to make, purchase, service and sell mortgage loans issued in connection with certain housing projects and sections 2.1102 to 2.1135 of this code are to be liberally construed in order to carry out this purpose.