Cal. Health and Safety Code § 52033

Any resolution authorizing the issuance of the bonds may contain covenants as to (1) the use and disposition of the revenues and receipts from or with respect to any home mortgages or loans to lending institutions for which the bonds are to be issued, including the creation and maintenance of reserves, (2) any insurance to be carried on any home, home mortgage or bonds and the use and disposition of insurance moneys, (3) the appointment of one or more banks or trust companies within or outside the state having the necessary trust powers as trustee, custodian, or trustee and custodian for the benefit of the bondholders, paying agent, or bond registrar, (4) the investment of any funds held by such trustee or custodian, (5) the maximum interest rate payable on any home mortgage, and (6) the terms and conditions upon which the holders of the bonds or any portion thereof, or any trustees therefor, are entitled to the appointment of a receiver by a court of competent jurisdiction, and which may provide that the receiver may take possession of the home mortgages, or any part thereto, and maintain, sell or otherwise dispose of such mortgages, prescribe other payments and collect, receive and apply all income and revenues thereafter arising therefrom. Any resolution authorizing the issuance of bonds may provide that the principal or redemption price of, and interest on, the bonds shall be secured by a mortgage, pledge, assignment, security interest, insurance agreement or indenture of trust covering such home mortgages or loans to lending institutions for which the bonds are issued and may include any improvements or extensions thereafter made. Such mortgage, pledge, assignment, security interest, insurance agreement or indenture of trust may contain such covenants and agreements to properly safeguard the bonds as may be provided for in the resolution authorizing such bonds and shall be executed in the manner as may be provided for in the resolution. The provisions of this part and any such resolution and any such mortgage, pledge, assignment, security interest, insurance agreement, or indenture of trust shall constitute a contract with the holder or holders of the bonds and continue in effect until the principal of, the interest on, and the redemption premiums, if any, on the bonds so issued have been fully paid or provision made therefor, and the duties of the issuing city or county and its agencies and officers under this part and any such resolution and any such mortgage, pledge, assignment, security interest, insurance agreement, or indenture of trust shall be enforceable as provided therein by any bondholder by mandamus, foreclosure of any such mortgage, pledge, assignment, security interest, insurance agreement, or indenture of trust or other appropriate suit, action or proceeding in any court of competent jurisdiction; provided, the resolution or any mortgage, pledge, assignment, security interest, insurance agreement, or indenture of trust under which the bonds are issued may provide that all such remedies and rights to enforcement may be vested in a trustee (with full power of appointment) for the benefit of all the bondholders, and that the trustee shall be subject to the control of such number of holders or owners of any outstanding bonds as specified in the resolution.