The legislative authority of any municipal corporation, county, township, school district, or other political subdivision or taxing district, may convey or lease to, or exchange with, any port authority or any port authority may convey or lease to, or exchange with, a municipal corporation, county, township, school district, or other political subdivision or taxing district, without competitive bidding and on mutually agreeable terms, any personal property or real property, or any interest therein, which is not needed for the purposes of the grantor, or lessor, to be used by the recipient or lessee for its purposes.