A person is not liable on an instrument unless (i) the person signed the instrument, or (ii) the person is represented by an agent or representative who signed the instrument and the signature is binding on the represented person under § 47-3-402.
Signature necessary for liability on instrument
Tenn. Code Ann. § 47-3-401, under Liability of Parties.
Tenn. Code Ann. § 47-3-401