(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 a trust company or bank having trust powers, whether the trust company or bank is located within or outside of the state. In any 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 rights exist or may thereafter come into existence, and may assign, as security for payment, any of its leases, franchises, permits, and contracts. In any indenture, an authority may mortgage any 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, the mortgage may be foreclosed either by sale at public outcry or by judicial proceedings. Any pledge of revenues shall be valid and binding from the time it is made, and the revenues pledged and thereafter received by the authority shall immediately become subject to the lien of the pledge without any physical delivery thereof or further act. The lien of such a 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. In any indenture or resolution authorizing the issuance of bonds and pledging for the benefit thereof revenues from any one or more projects, the authority may 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 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 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 the board of directors deem advisable and which are not in conflict with this section.
(b) If an authority defaults 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, a holder of the bonds or any of the coupons, or the trustee under any indenture if authorized in indenture, may, in addition to any other remedies herein provided or otherwise available, by suit, action, mandamus, or other proceedings, enforce payment of the principal or interest and compel performance of all duties of the authority, and shall be entitled to the appointment of a receiver possessing all the powers of a receiver necessary or appropriate for the operation and maintenance of the property of the authority covered by the indenture or resolution, and the collection, segregation, and application of revenues therefrom. The indenture or any resolution may contain provisions restricting the individual rights of action of the holders of the bonds and coupons.