An agency may not finance mortgage or construction loans which have not been authorized by prior written agreement between the agency and the participating party. All agreements for such loans shall provide that the architectural and engineering design of the residential construction shall be subject to such standards as may be established by the agency and that the work of such residential construction shall be subject to such supervision as the agency deems necessary.

If the jurisdiction of the agency to order a proposed act is not affected, an omission of any officer or the agency in proceedings under this chapter or any other defect in the proceedings shall not invalidate the proceedings or revenue bonds issued pursuant to this chapter.

This chapter is full authority for the issuance of bonds by an agency for the purpose of financing residential construction.

This chapter shall be deemed to provide a complete, additional, and alternative method for doing the things authorized thereby, and shall be regarded as supplemental and additional to the powers conferred by other laws. The issuance of revenue bonds and refunding revenue bonds under the provisions of this chapter need not comply with the requirements of any other law applicable to the issuance of bonds.

An action may be brought pursuant to Chapter 9 (commencing with Section 860) of Title 10 of Part 2 of the Code of Civil Procedure to determine the validity of any issuance or proposed issuance of revenue bonds under this chapter and the legality and validity of all proceedings previously taken or proposed in a resolution of an agency to be taken for the authorization, issuance, sale, and delivery of the revenue bonds and for the payment of the principal thereof and interest thereon.