Start with Mont. Code Ann. §§ 70-27-101 to 70-27-211. In Montana, Montana requires unlawful detainer in justice court or district court where the property is located. For nonpayment, landlords generally must give a 3-day notice to pay rent or quit. Notices for other lease breaches and for terminating periodic tenancies follow title 70, chapter 24 and chapter 27 timelines. That is the question this guide answers for how eviction works. After notice expires, the landlord files an unlawful-detainer complaint. Hearings are often expedited; judgment for possession leads to a writ of assistance or restitution executed by the sheriff. Contested cases may take longer if habitability or notice defenses are raised.
The Montana eviction / unlawful detainer framework
After notice expires, the landlord files an unlawful-detainer complaint. Hearings are often expedited; judgment for possession leads to a writ of assistance or restitution executed by the sheriff. Contested cases may take longer if habitability or notice defenses are raised.
Exact deadlines vary by county practice, service method, and whether the tenant answers. Commercial leases and subsidized housing can add federal or program-specific rules on top of Montana law.
Notice requirements before filing
For nonpayment, landlords generally must give a 3-day notice to pay rent or quit. Notices for other lease breaches and for terminating periodic tenancies follow title 70, chapter 24 and chapter 27 timelines.
A defective notice is one of the most common reasons an eviction is dismissed without prejudice. Landlords should match the notice form and timing to the ground for eviction (nonpayment vs. cureable breach vs. no-cause termination where allowed). Tenants should keep the envelope, text, email, and posting photos.
How the Montana rule applies
Apply the Montana authorities in order. The facts are simplified so the statute and the standard are visible.
A residential landlord in Montana wants possession after unpaid rent and cannot use a lockout.
- Give the notice Montana actually requires: For nonpayment, landlords generally must give a 3-day notice to pay rent or quit. Notices for other lease breaches and for terminating periodic tenancies follow title 70, chapter 24 and chapter 27 timelines.
- File unlawful detainer in justice court or district court where the property is located under Mont. Code Ann. §§ 70-27-101 to 70-27-211.
- Prove the tenancy, the ground, and proper notice. Tenant defenses include: Defenses include defective notice, habitability under the Montana Residential Landlord and Tenant Act, retaliation, discrimination, and payment disputes.
- If the landlord prevails, possession is enforced by writ — Self-help lockouts and utility shutoffs are unlawful; landlords must obtain an unlawful-detainer judgment and writ.
After notice expires, the landlord files an unlawful-detainer complaint. Hearings are often expedited; judgment for possession leads to a writ of assistance or restitution executed by the sheriff. Contested cases may take longer if habitability or notice defenses are raised.
Where the case is filed
Eviction actions in Montana are filed in justice court or district court where the property is located. Service must follow Montana rules — personal service, substitute service, or posting/mailing combinations as authorized. Improper service can void a default judgment.
Hearing, judgment, and writ of possession
After service, the tenant usually has a short window to answer. At hearing the landlord must prove the landlord-tenant relationship, the ground for eviction, proper notice, and (for nonpayment) the rent due. If the landlord prevails, the court issues a judgment for possession and, after any statutory waiting period, a writ of possession executed by the sheriff or constable — not by the landlord personally.
Tenant defenses in Montana
Defenses include defective notice, habitability under the Montana Residential Landlord and Tenant Act, retaliation, discrimination, and payment disputes.
Habitability, retaliation, and discrimination defenses can convert a simple nonpayment case into a longer civil action. Tenants asserting habitability should document repair requests; landlords facing those defenses should document inspections and cure efforts.
Self-help is not a shortcut
Self-help lockouts and utility shutoffs are unlawful; landlords must obtain an unlawful-detainer judgment and writ.
Illegal lockouts can expose landlords to statutory damages, attorney's fees, and even criminal penalties in some jurisdictions. The lawful path is notice → unlawful detainer → writ.
Practical tips
- Calendar every notice and answer deadline; eviction timelines are intentionally short.
- Bring the lease, ledger, notices, and proof of service to the first hearing.
- Search Montana opinions for “unlawful detainer”, “writ of possession”, and “notice to quit” on LawDiver before a contested trial.
- Subsidized, mobile-home, and hotel-to-housing arrangements may follow different notice statutes — verify the housing type.
Case law: eviction and landlord-tenant in Montana
ROSENEAU FOODS INC., a Corporation, FILIP KURZ, EARL H. BEST and ARDIS L. BEST, Plaintiffs and Appellants, v. FLOYD
…action was brought by the plaintiffs, appellants here, for unlawful detainer of certain rental property used to conduct a meat business and for treble rent as damages. Judgment was for the defendant. The plaintiffs generally will be referred to as the landlord. The defendant respondent as the tenant. Roseneau Foods, Inc., is the successor in title to the property from the Ferg…
Montana opinions such as ROSENEAU FOODS INC., a Corporation, FILIP KURZ, EARL H. BEST and ARDIS L. BEST, Plaintiffs and Appellants, v. FLOYD are cited where eviction / landlord-tenant is disputed. The court stated: "Judgment was for the defendant. The plaintiffs generally will be referred to as the landlord. The defendant respondent as the tenant. Roseneau Foods, Inc." That is the language to brief; the rest of the decision supplies the procedural posture.
STANLEY RASMUSSEN, Personal Representative of the Estate of FRED PELZMAN, Deceased, Plaintiff and Respondent, v. JOE
…Teton County, granting summary judgment on the claim of *86 unlawful detainer in favor of Stanley Rasmussen, personal representative of the estate of Fred Pelzman (the estate). We affirm. Joe Lee has requested that we strike certain evidence referenced in the estate’s brief. The evidence referred to was not considered by this Court in our decision. Lee’s request is therefore mo…
Practitioners open STANLEY RASMUSSEN, Personal Representative of the Estate of FRED PELZMAN, Deceased, Plaintiff and Respondent, v. JOE when Montana eviction / landlord-tenant turns on the distinction in this sentence: "Teton County, granting summary judgment on the claim of *86 unlawful detainer in favor of Stanley Rasmussen, personal representative of the estate of Fred Pelzman (the estate). We affirm. Joe Lee has requested that we strike certain evidence referenced in the estate’s brief." Do not lift it out of the facts the court was deciding.
MAHONEY, Respondent, v. LESTER Et Al., Appellants
MAHONEY, Respondent, v. LESTER Et Al., Appellants, 118 Mont. 551 (1946)
…rt. This is an appeal from a judgment. The action is one of unlawful detainer involving the possession of the dwelling *553 house and premises situate at No. 407 West Main Street, in the City of Bozeman, Montana. A jury was waived and the cause tried to the court. The court made and filed written findings of faet and conclusions of law and in accordance therewith judgment was g…
Practitioners open MAHONEY, Respondent, v. LESTER Et Al., Appellants when Montana eviction / landlord-tenant turns on the distinction in this sentence: "This is an appeal from a judgment. The action is one of unlawful detainer involving the possession of the dwelling *553 house and premises situate at No. 407 West Main Street, in the City of Bozeman, Montana. A jury was waived and the cause tried to the court." Do not lift it out of the facts the court was deciding.
BUSH v. BAKER
BUSH v. BAKER, 51 Mont. 326 (1915)
…emises having been restored to the plaintiff, the' issue of unlawful detainer was no longer in the case and restricted the plaintiff’s evidence to the issue of unpaid rent. He also refused to admit any testimony in support of the defendant’s last two counterclaims. At the close of all the evidence, the defendant moved for a directed verdict, upon the ground that the amended com…
Practitioners open BUSH v. BAKER when Montana eviction / landlord-tenant turns on the distinction in this sentence: "He also refused to admit any testimony in support of the defendant’s last two counterclaims." Do not lift it out of the facts the court was deciding.
CENTENNIAL BREWING CO. v. ROULEAU
CENTENNIAL BREWING CO. v. ROULEAU, 49 Mont. 490 (1914)
…pinion of the court. Action by the plaintiff for an alleged unlawful detainer by the defendants of a building in the city of Butte, described as No. 117 East Park Street, and for damages for its detention. *497The complaint alléges that on the ——• day of December, 1912, Geoffrey Lavell, the owner thereof, leased the building to the plaintiff for a term of one year, beginning on…
CENTENNIAL BREWING CO. v. ROULEAU is worth reading on Montana eviction / landlord-tenant because the court put the point in its own words: "Action by the plaintiff for an alleged unlawful detainer by the defendants of a building in the city of Butte, described as No. 117 East Park Street, and for damages for its detention." Use that passage as the starting point, then read the facts that precede it.
HUTCHINSON, Et Al., Appellants, v. BURTON, Et Al., Respondents
HUTCHINSON, Et Al., Appellants, v. BURTON, Et Al., Respondents, 126 Mont. 279 (1952)
…s against the defendants for the claimed forcible entry and unlawful detainer of certain described premises situate in Gallatin county. Statutory Proceedings. In Montana actions for forcible entry and unlawful detainer are purely statutory civil proceedings. The governing statutes comprise Chapter 97 of the Code of Civil Procedure, being sections 93-9701 to 93-9720, both inclus…
Montana opinions such as HUTCHINSON, Et Al., Appellants, v. BURTON, Et Al., Respondents are cited where eviction / landlord-tenant is disputed. The court stated: "Gallatin county. Statutory Proceedings. In Montana actions for forcible entry and unlawful detainer are purely statutory civil proceedings." That is the language to brief; the rest of the decision supplies the procedural posture.
GLACIER PARK COMPANY, a Delaware Corporation, Plaintiff and Respondent, v. MOUNTAIN, INC., a Tennessee Corporation
…ued its mining operations. Glacier then filed an action for unlawful detainer in District Court seeking to regain possession of the coal estate and damages for Mountain’s wrongful occupation of the property. On January 10, 1997, Mountain made one final attempt to satisfy its obligations under the coal lease by tendering a check for $733,000 which it claimed was its “best estima…
GLACIER PARK COMPANY, a Delaware Corporation, Plaintiff and Respondent, v. MOUNTAIN, INC., a Tennessee Corporation is worth reading on Montana eviction / landlord-tenant because the court put the point in its own words: "Glacier then filed an action for unlawful detainer in District Court seeking to regain possession of the coal estate and damages for Mountain’s wrongful occupation of the property." Use that passage as the starting point, then read the facts that precede it.
WALTER F. DUSSAULT and ARLENE S. DUSSAULT, Plaintiffs and Respondents, v. F. HJELM, Defendant and Appellant
…ly thereby entitling plaintiffs to treble damages under the unlawful detainer statutes, and awarded attorney fees and costs to plaintiffs. Flo Hjelm owned property outside the City of Hamilton, Ravalli County, Montana. On February 27, 1979, Hjelm sold his property to Walter and Arlene Dussault. The instrument formalizing the terms of the sale contained a lease-back provision by…
WALTER F. DUSSAULT and ARLENE S. DUSSAULT, Plaintiffs and Respondents, v. F. HJELM, Defendant and Appellant is worth reading on Montana eviction / landlord-tenant because the court put the point in its own words: "Flo Hjelm owned property outside the City of Hamilton, Ravalli County, Montana. On February 27, 1979, Hjelm sold his property to Walter and Arlene Dussault." Use that passage as the starting point, then read the facts that precede it.
Key takeaways
- Process name: unlawful detainer.
- Primary authority: Mont. Code Ann. §§ 70-27-101 to 70-27-211.
- Filing forum: justice court or district court where the property is located.
- Notice: For nonpayment, landlords generally must give a 3-day notice to pay rent or quit.
- Self-help lockouts: Self-help lockouts and utility shutoffs are unlawful; landlords must obtain an unlawful-detainer judgment and writ.
Frequently asked questions
How does eviction work in Montana?
Montana uses unlawful detainer under Mont. Code Ann. §§ 70-27-101 to 70-27-211. After notice expires, the landlord files an unlawful-detainer complaint.
How much notice does a landlord have to give?
For nonpayment, landlords generally must give a 3-day notice to pay rent or quit. Notices for other lease breaches and for terminating periodic tenancies follow title 70, chapter 24 and chapter 27 timelines.
Can a landlord change the locks without going to court?
Self-help lockouts and utility shutoffs are unlawful; landlords must obtain an unlawful-detainer judgment and writ.
What defenses can a tenant raise?
Defenses include defective notice, habitability under the Montana Residential Landlord and Tenant Act, retaliation, discrimination, and payment disputes.