Tenn. Code Ann. § 66-24-103: Conveyances of land

If the instrument be a conveyance, or for the conveyance, of land, it shall be registered in the county where the land lies, unless it lies partly in two (2) or more counties, and then it may be registered in either; and where it contains several tracts of land, lying in different counties, it shall be registered in each of the counties where any of the tracts lie.