243.57 Conveyance of title or interest to participating institutions.—When the principal of and interest on revenue bonds of the authority issued to finance the cost of a particular project or projects at a participating institution, including any revenue refunding bonds issued to refund and refinance the revenue bonds, have been fully paid and retired, or when adequate provision has been made to pay fully and retire them, and all other conditions of the resolution or trust agreement authorizing and securing the revenue bonds have been satisfied and the lien of the resolution or trust agreement has been released in accordance with the provisions thereof, the authority shall promptly execute deeds and conveyances necessary and required to convey title to the project or projects to the participating institution, free and clear of all liens and encumbrances.