Tenn. Code Ann. § 66-19-211: Wharfage lien

The owners and/or proprietors of wharves and landings, where wharfage is allowed by law, have a lien on boats, rafts, and other water crafts, and their loading, for the payment of their wharfage fees, and the same may be enforced by attachment within three (3) months after the lien accrued.