Ala. Code § 22-29-9
The bonds of the authority may be sold at such time or times as the board of directors may deem advantageous; but unless sold to a local public body or to the United States of America or an agency of the United States of America, such bonds shall be sold at public sale, either on sealed bids or at public auction, to the bidder whose bid reflects the lowest net interest cost to the authority for the bonds being sold, computed to their respective absolute maturities; provided, that if no bid acceptable to the authority is received, it may reject all bids and readvertise; provided further, that if no bid shall be received, the authority may negotiate for a private sale of the bonds. Notice of any public sale shall be given by such publication or by such distribution of notices of sale, or both, as the board of directors may determine. The authority may pay from the proceeds of the sale of its bonds all expenses, including publication and printing charges, attorney's fees and other expenses which the board of directors may deem necessary or advantageous in connection with the authorization, advertisement, sale, execution and issuance thereof.
Ala. Code § 22-29-9 (1975)