Cal. Health and Safety Code § 52030

For purposes of this part, a city or county shall have the following powers: (a) To issue its bonds to defray, in whole or in part, (1) the costs of acquiring home mortgages or making loans to lending institutions in order to enable them to make home mortgages, (2) the costs of studies and surveys, insurance premiums, underwriting fees, legal, accounting and marketing services incurred in connection with the issuance and sale of bonds, including bond and mortgage reserve accounts; and trustee, custodian and rating agency fees, and (3) such other costs as are reasonably related to the foregoing. (b) To sell or otherwise dispose of any home mortgages, in whole or in part, or to loan sufficient funds to any person to defray, in whole or in part, the costs of purchasing home mortgages, so that the revenues and receipts to be derived with respect to the home mortgages, together with any insurance proceeds, reserve accounts and earnings thereon, shall be designed to produce revenues and receipts at least sufficient to provide for the prompt payment at maturity of principal, interest and redemption premiums, if any, upon all bonds issued to finance such costs. (c) To pledge any revenues and receipts to be received from or with respect to any home mortgages or loans made to lending institutions pursuant to this part to the punctual payment of bonds authorized under this part, and the interest and redemption premiums, if any, thereon. (d) To mortgage, pledge, assign, or grant security interests in any home mortgages, notes, loans made to lending institutions pursuant to this part, or other property in favor of the holder or holders of bonds issued therefor or the trustee for such holder or holders. (e) To sell and convey any home mortgages or loans made to lending institutions pursuant to this part, for such prices and at such times as the governing body of the city or county may determine. (f) To issue its bonds to refund previously issued bonds in whole or in part at any time. (g) To make and execute contracts and other instruments necessary or convenient to the exercise of any of the powers granted herein.