The Montana 3-day notice to quit is delivered to tenants obligating them to pay rent or vacate the premises in three (3) days. Tenants are required to furnish payment on the date indicated in the rental agreement. Should they fail to do so, the landlord may immediately serve them with this notice to quit. If the tenant makes no attempt at payment nor vacates the property within three (3) days after receiving the notice, the landlord may seek an eviction order by filing a complaint with the court.

Laws – § 70-24-422(2)