Montana Title 70. Property § 70-26-109. Change of lease terms by notice

In all leases of lands or tenements or of any interest therein from month to month, the landlord may, upon giving notice in writing at least 15 days before the expiration of the month, change the terms of the lease to take effect at the expiration of the month. The notice, when served upon the tenant, shall of itself operate and be effectual to create and establish as a part of the lease the terms, rent, and conditions specified in the notice if the tenant shall continue to hold the premises after the expiration of the month.