When the principal of and interest on bonds of the authority issued to finance the cost of a particular project or projects for an eligible institution, including any refunding bonds issued to refund and refinance such bonds, have been fully paid and retired or when adequate provision has been made to fully pay and retire the same, and all other conditions of the resolution and any trust indenture authorizing the same have been satisfied and the lien created by such resolution or trust indenture has been released in accordance with the provisions thereof, the authority shall promptly do such things and execute such deeds, conveyances, and other instruments, if any, as are necessary and required to convey title to such project or projects to such eligible institution.