Tenn. Code Ann. § 7-84-629: Dissolution

(a) The governing body shall be authorized to dissolve the district upon written petition filed by the owners of either seventy-five percent (75%) of the assessed value of the property in the district, based on the most recent certified city property tax rolls, or fifty percent (50%) of the owners of record within the district.

(b) The district may not be dissolved if the municipality has outstanding any bonds, notes or other obligations payable solely from the special assessment revenues levied on the property within the district, and such dissolution may occur only at such time as such bonded indebtedness has been repaid in full or the municipality pledges to the payment of such indebtedness its full faith and credit and unlimited taxing power.