Montana Title 70. Property § 70-24-110. Landlords and tenants--no firearm prohibition allowed

A landlord or operator of a hotel or motel may not, by contract or otherwise, prevent a tenant or a guest of a tenant from possessing on the premises a firearm that it is legal for the tenant or guest to possess. A landlord or operator of a hotel or motel may prohibit the discharge of a firearm on the premises except in self-defense.