(a) Bonds of an authority shall be signed by the chair or vice chair and attested to by the secretary or assistant secretary. The seal of an authority shall be affixed thereto. A facsimile of the signature of the officers may be printed or otherwise reproduced on any such bonds in lieu of being manually subscribed thereon, and a facsimile of the seal of an authority may be printed or otherwise produced on any such bonds in lieu of being manually affixed thereto, provided that the bonds have been manually authenticated by a transfer agent of the bonds issued. Delivery of the bonds so executed shall be valid notwithstanding any subsequent changes in officers or in the seal of an authority.
(b) Bonds may be executed and delivered by an authority at any time. The bonds shall be in such form and denominations and of such tenor and maturities, shall bear such rate or rates of interest or no interest, shall be payable at such times, and shall be payable and secured by such revenues, funds, assets, pledges, agreements, or other property, and evidenced in such manner, and may contain such other provisions not inconsistent with this chapter as may be provided by resolution of the board. The bonds may bear interest at a fixed or variable rate. An authority may issue tender bonds or similar bonds and enter into appropriate remarketing agreements with respect to any of its bonds and the determination of the rate of interest borne by the bonds. The bonds of an authority may be sold at either public or private sale in the manner, at the price, and at the time as determined by the board to be most advantageous.
(c) The proceeds from the sale of any bonds shall be applied as provided in the proceedings of an authority or agreement authorizing the bonds to be issued, including, without limitation, the payment of all legal, fiscal, recording, and other fees and expenses incurred in connection with the authorization, sale, and issuance of the bonds and, if provided in the proceedings or agreement, interest on the bonds. An authority may provide for the funding of a debt service reserve, a replacement and reserve, or both, and for letters of credit, bond insurance, guaranties, and other forms of credit enhancement from the proceeds of its bonds or from other funds.
(d) The bonds shall be legal investments for funds of the Teachers' Retirement System of Alabama, the Employees' Retirement System of Alabama, and the State Insurance Fund.
(e) Public persons other than members of an authority or its appointing bodies may invest in any bond issued by the authority.
(f) Upon the adoption by the board of any resolution providing for the issuance of bonds, the board shall cause to be published once a week for two consecutive weeks in a newspaper of general circulation published in the county of incorporation a notice in substantially the following form at the end of which shall be printed the name and title of the chair, vice chair, secretary, or assistant secretary of the authority: "____________ Development Authority, a public corporation under the laws of the State of Alabama, on the ____ day of _______, authorized the issuance of not more than $ ___ principal amount of [insert the appropriate designation describing the bonds, notes, warrants, or other debt obligations] of the authority for purposes authorized in Chapter 92B, Subtitle 3, Title 11, Code of Alabama 1975. Any action or proceeding questioning the validity of the bonds, any pledge or mortgage to secure the same, any lease or sale of any project to be financed by the bonds, or the proceedings authorizing the same must be commenced within 20 days after the first publication of this notice." Any action in any court to set aside or question the issuance of the bonds notice, or to contest the validity of the bonds or of any pledge or mortgage made therefor or of any lease or sale of any project to be financed by the bonds must be commenced within 20 days after the first publication of the notice. After the expiration of the 20 days, no cause of action, counterclaim, setoff, or defense questioning the validity of the bonds, or of the pledge, mortgage, lease, or sale of the project to be financed by the bonds shall be asserted, nor shall the validity of the bonds, or of the pledge, mortgage, lease, or sale of the project to be financed by the bonds be open to question in any court on any ground whatsoever except in an action that was commenced within the 20-day period.