Montana Title 1. General Laws and Definitions § 1-5-623. Signature if principal unable to sign

(1) If a principal intending to execute a record is physically unable to sign a record, the principal may direct an individual other than the notarial officer to sign the principal's name on the record. The notarial officer shall insert “Signature affixed by (name of the other individual) at the direction of (name of principal intending to execute the record)” or words with similar intent.

(2) A notary public shall record in the notary's journal the name and address of the individual who signs the record as well as the name and address of the principal unable to sign.