(a) In the discretion of the board of directors of an authority, any bonds may be secured by an indenture between an authority and a trustee, which may be any trust company or bank having trust powers, whether such trust company or bank is located within or without the state. In any such indenture or resolution providing for the issuance of bonds an authority may pledge, for payment of the principal of and the interest on such bonds, any of its revenues to which its right then exists or may thereafter come into existence, including, but not limited to, revenues or other money or property pledged to it by any public or private person, and may assign, as security for such payment, any of its leases, loan agreements, franchises, permits, and contracts. In any such indenture, an authority may mortgage any of its properties, including any that may be thereafter acquired by it, and may provide that in the event of a default in payment of the bonds secured thereby or in the event of default with respect to any agreement contained therein, such mortgage may be foreclosed either by sale at public outcry or by judicial proceedings. Any such pledge of revenues shall be valid and binding from the time it is made, and the revenues so pledged and thereafter received by the authority shall immediately become subject to the lien of such pledge without any physical delivery thereof or further act. The lien of such pledge shall be valid and binding against all parties having claims of any kind in tort, contract, or otherwise against the authority, irrespective of whether the parties have actual notice thereof, provided any indenture has been recorded in the office of the probate judge, regardless of compliance with the Alabama Uniform Commercial Code as in effect from time to time. In any indenture or resolution authorizing the issuance of bonds and pledging for the benefit thereof revenues from any one or more of its projects, the authority shall have the power to include provisions customarily contained in instruments securing evidences of indebtedness, including, without limiting the generality of the foregoing, provisions respecting the collection, segregation, and application of any rental, loan payment, or other revenue due or to become due to the authority, the terms to be incorporated in any lease agreement respecting any property of the authority, the terms to be included in any loan agreement, the maintenance and insurance of any building, structure, or other property owned by the authority, the creation and maintenance of special funds from any revenue of the authority, and the rights and remedies available in the event of default to the holder of the bonds or the trustee under the indenture, all as its board of directors shall deem advisable and as shall not be in conflict with the provisions of this section.
(b) If there occurs any default by an authority in payment of the principal of or the interest on the bonds or in any of the agreements on the part of an authority that may properly be included in any indenture securing the bonds or in any resolution authorizing their issuance, any holder of any of the bonds or any of the coupons, or the trustee under any indenture if so authorized in such indenture, may, in addition to any other remedies herein provided or otherwise available, by suit, action, mandamus, or other proceedings, enforce payment of such principal or interest and compel performance of all duties of the authority, and shall be entitled as a matter of right and regardless of the sufficiency of any such security to the appointment of a receiver possessing all the powers of such receiver necessary or appropriate for the operation and maintenance of the property of the authority covered by such indenture or resolution, and the collection, segregation, and application of revenues therefrom. The indenture or any resolution may also contain provisions restricting the individual rights of action of the holders of the bonds and coupons.