Montana Code Annotated · § 70-24-204 — Effect of unsigned or undelivered rental agreement

(1) If the landlord does not sign and deliver a written rental agreement that has already been signed by the tenant and delivered to the landlord, acceptance of rent without reservation by the landlord gives the rental agreement the same effect as if it had been signed and delivered by the landlord to the tenant.

(2) If the tenant does not sign and deliver to the landlord a written rental agreement that has already been signed by the landlord and delivered to the tenant, acceptance of possession of the premises and payment of rent without reservation by the tenant gives the rental agreement the same effect as if it had been signed and delivered by the tenant to the landlord.

(3) If a rental agreement given effect by the operation of this section provides for a term longer than 1 year, it is effective for only 1 year.