All bonds issued by the authority shall be signed by the chair of its board or other chief executive officer and attested by its secretary, and the seal of the authority shall be affixed to the bond, and any interest coupons applicable to the bonds of the authority shall be signed by the chair of its board or other chief executive officer. A facsimile of the signature of one, but not both, of the officers may be printed or otherwise reproduced on any of the bonds in lieu of his or her manually signing the bonds, a facsimile of the seal of the authority may be printed or otherwise reproduced on any of the bonds in lieu of being manually affixed to the bonds, and a facsimile of the signature of the chair of its board or other chief executive officer may be printed or otherwise reproduced on any interest coupons in lieu of his or her manually signing the bonds. Bonds may be executed and delivered by the authority and from time to time, shall be in such form and denominations, and of such tenor and maturities, shall contain provisions not inconsistent with this chapter, and shall bear such rate or rates of interest, payable and evidenced in such manner, as may be provided by resolution of its board. Bonds of the authority may be sold at either public or private sale in any manner and at such price or prices and at such time or times as may be determined by the board to be most advantageous. The principal of and interest on any bonds issued or obligations assumed by the authority may at any time whether before, at or after maturity of the principal and whether at, after or not exceeding six months prior to the maturity of any interest and from time to time be refunded by the issuance of refunding bonds of the authority, which may be sold by the authority at public or private sale at a price or prices as may be determined by its board to be most advantageous, or which may be exchanged for the bonds or other obligations to be refunded. The authority may pay all expenses, premiums, and commissions which its board may deem necessary and advantageous in connection with any financing done by it. All bonds issued by the authority shall be construed to be negotiable instruments although payable solely from a specified source. All obligations created or assumed and all bonds issued or assumed by the authority shall be solely and exclusively an obligation of the authority and shall not create an obligation or debt of any county or municipality. The preceding sentence shall not be construed to release the original obligor from liability on any bond or other obligation assumed by the authority. Bonds issued by the authority shall be limited or special obligations of the authority payable solely out of the revenues of the authority specified in the proceedings authorizing those bonds. The proceedings may provide that the bonds authorized shall be payable solely from one or combination of the following sources set forth in a resolution of the board authorizing the issuance of the bonds:
(1) The tax proceeds appropriated, allocated, or made payable in whole or in part to the authority by or pursuant to any act of the Legislature of the state, by or pursuant to any ordinance, resolution, or order of the county in which the authority is authorized to furnish public transportation service or any municipality located in the county.
(2) The revenues derived from the operation of all transit systems owned by the authority or solely out of the revenues from the operation of any one or more of the systems or parts of the system, regardless of the fact that those bonds may have been issued with respect to or for the benefit of only certain particular systems of the authority.
(3) The authority may pledge for the payment of any of its bonds the revenues from which the bonds are payable, and may execute and deliver a trust indenture evidencing any pledge or a mortgage and deed of trust conveying as security for the bonds the transit systems, or any part of the system, the revenues or any part of the revenues from which the bonds are pledged.
The mortgage and deed of trust or trust indenture made by the authority may contain the agreements as the board may deem advisable respecting the operation and maintenance of the property and the use of the revenues subject to the mortgage and deed of trust or affected by the trust indenture, and respecting the rights, duties, and remedies of the parties to any instrument and the parties for the benefit of whom the instrument is made and no instrument shall be subject to foreclosure.