Tenn. Code Ann. § 29-17-704: Parties bound - Defendants under disability

(a) All parties having any interest or rights in such lands may be made defendants and proceedings shall only cover and affect the interest of those who are actually made parties, the unborn remaindermen being, however, bound by the proceedings to which all living persons in interest are parties.

(b) If it shall appear that any of the parties defendant are minors or otherwise under disability, the presiding judge shall appoint a guardian ad litem to represent them, whose compensation shall be fixed by the court and taxed as a part of the costs.