To carry out the purposes of this subtitle, an authority may issue revenue bonds to finance the cost of: acquiring property; or establishing, constructing, altering, improving, or equipping a facility. Each bond issue shall be authorized by a resolution approved by a vote of at least four members of the authority. An authority shall determine that a bond issue is necessary to achieve one or more of the authority’s purposes before issuing bonds under this section. The resolution authorizing the bond issue shall include: the determination that a bond issue is necessary; a statement that the authority will acquire the vehicle parking facility or related project in accordance with this subtitle and local law; a determination of the probable useful life of the project or average probable useful life of the projects to be financed; an estimate of the cost of the project to be financed and the portion to be defrayed from any sources that shall be specifically named, other than the proposed bond issue; the procedure for the sale of the proposed bond issue; a description sufficient for purposes of identification of each of the projects to be financed by the bond issue; and a finding that the amount of the proposed bond issue is sufficient to complete at least a useful portion of each project to be financed. Notwithstanding any other provision of the Code or any recitals of the bond, the bonds are negotiable instruments.