Tennessee Code Title 66. Property § 66-32-129

(1) A lienholder's lien rights shall be preserved as against any purchaser of time-share interval claiming that the time-share is invalid, void or voidable, thirty (30) days after written notice by certified mail or personal delivery has been given by the developer to the purchaser. Such notice must state the developer has assigned the receivables to the lienholder and that purchaser has thirty (30) days within which to object and specify the invalidity or defect contained within such instrument;

(2) Any purchaser who fails to indicate the invalidity, void or voidableness as provided in subdivision (1) waives or is estopped to raise, the same in any subsequent enforcement of the collection of the receivable by the lienholder.