Tenn. R. Civ. P. 24.03
As amended through January 18, 2024
Any person desiring to intervene shall file and serve a motion to intervene upon the parties as provided in Rule 5. The motion shall state the grounds therefor and shall be accompanied by a pleading setting forth the claim or defense for which intervention is sought. The same procedure shall be followed when a statute gives a right to intervene.
Tenn. R. Civ. P. 24.03