Tenn. Code Ann. § 7-84-723: Delinquent assessments

If any assessment is or becomes delinquent and the property subject to the delinquency has been or is to be sold to the host municipality for the delinquency, redemption of such property is permitted upon payment, not later than one (1) year after the date of sale, of the full amount due, plus interest, any taxes paid by the host municipality, and accrued costs and redemption fees as may be prescribed by resolution of the host municipality, unless, in the judgment of the governing body of the municipality, the interest of the host municipality is served by accepting a lesser sum in settlement for the delinquency.