Tennessee Code Title 47. Commercial Instruments and Transactions § 47-28-110

(1) Invalidate a provision of any mortgage or contract entered into prior to June 30, 1987;

(2) Deny or curtail the right to a release of lien where the obligation it secures has been fully paid or satisfied; or

(3) Deny or curtail the right to a partial release except in the case of an open-end mortgage.