Montana Residential Lease Agreement

Last Updated: May 22, 2025 by Roberto Valenzuela

A Montana residential lease agreement (“rental agreement”) is a legal contract between a landlord overseeing a rental property and a tenant using the property. State and local laws set the rules for rental agreements, such as laws regulating the use of a tenant’s security deposit.

Montana Residential Lease Agreement Disclosures

These disclosures are required for residential lease agreements in Montana:

Disclosure Applicable To
Landlord Name and Address All Units
Move-In Checklist All Leases Collecting Security Deposits
Mold All Units With Known Mold Contamination
Meth All Units With Known Methamphetamine Contamination
Lead Paint All Units Built Before 1978

Landlord’s Name and Address

Applicable to all Montana rentals.

Montana leases must contain the name and address of the landlord (or authorized agent). This allows required communication (for example, about repairs) to happen in a smooth way. For this reason, most leases also include phone numbers and email addresses.

Contact information most often is written in the lease agreement, for maximum convenience. The landlord must notify the tenant whenever there’s a change in contact information.

Move-In Checklist

Applicable to all Montana leases collecting a security deposit.

Montana landlords must provide a move-in checklist to inventory existing property damage, when the tenant takes possession of the rental property. The tenant must sign the checklist after inspecting the property to confirm the described conditions are accurate. This ensures accurate deductions from the security deposit upon move-out.

The checklist should contain a detailed statement of the current condition of the rental unit. If the rental unit has never been occupied, the landlord (or landlord’s agent) must also sign the inventory.

Download: Montana Move-In Checklist Disclosure Form (PDF)

Mold Disclosure

Applies to any Montana rentals with known mold contamination.

Montana landlords must provide a mold disclosure as part of the rental agreement if there is a known presence of toxic mold. The disclosure must be provided alongside the rental agreement or as part of it, before the lease begins. The tenant must sign the disclosure to acknowledge receipt.  This is the required language:

MOLD DISCLOSURE: There are many types of mold. Inhabitable properties are not, and cannot be, constructed to exclude mold. Moisture is one of the most significant factors contributing to mold growth. Information about controlling mold growth may be available from your county extension agent or health department. Certain strains of mold may cause damage to property and may adversely affect the health of susceptible persons, including allergic reactions that may include skin, eye, nose, and throat irritation. Certain strains of mold may cause infections, particularly in individuals with suppressed immune systems. Some experts contend that certain strains of mold may cause serious and even life-threatening diseases. However, experts do not agree about the nature and extent of the health problems caused by mold or about the level of mold exposure that may cause health problems. The Centers for Disease Control and Prevention is studying the link between mold and serious health conditions. The seller, landlord, seller’s agent, buyer’s agent, or property manager cannot and does not represent or warrant the absence of mold. It is the buyer’s or tenant’s obligation to determine whether a mold problem is present. To do so, the buyer or tenant should hire a qualified inspector and make any contract to purchase, rent, or lease contingent upon the results of that inspection. A seller, landlord, seller’s agent, buyer’s agent, or property manager who provides this mold disclosure statement, provides for the disclosure of any prior testing and any subsequent mitigation or treatment for mold, and discloses any knowledge of mold is not liable in any action based on the presence of or propensity for mold in a building that is subject to any contract to purchase, rent, or lease.

Download: Montana Mold Disclosure Form (PDF)

Methamphetamine Contamination Disclosure

Applies to any Montana rental with known methamphetamine contamination that has not been professionally remediated.

Montana landlords must disclose any known methamphetamine contamination on a rental property. This disclosure requirement continues unless and until the contamination is treated professionally to a safe level.

Download: Montana Methamphetamine Disclosure Form (PDF)

Lead-Based Paint Disclosure

Applies to any Montana rentals built before 1978.

Montana residential leases for property built before 1978 must, by federal law, contain a lead-based paint disclosure. This requires landlords to do the following:

Download: Montana Lead-Based Paint Disclosure Form (PDF)

Optional Disclosures and Addenda (Recommended)

The following lease agreement disclosures and addenda are not required by Montana law in residential lease agreements, but help with tenant management and landlord liability.

Optional Disclosure Purpose
Asbestos Informs tenants about any asbestos hazards related to the property. Tenants can reduce asbestos risk by not disturbing asbestos fibers.
Bed Bugs Informs tenants whether the property or an adjacent unit has a history of suspected bed bug infestation, and reminds the tenant of the obligation to report suspected infestation immediately.
Late/Returned Check Fees Specifies late fees or returned check fees related to the lease. Montana does not limit late fees. Return check fees have a $30 cap.
Medical Marijuana Use Informs tenants about policy related to medical marijuana use on the rental property. Some state laws allow landlords to restrict marijuana usage to non-smoking methods only, or allow use only in designated smoking areas.
Non-Refundable Fees Charges not agreed by the tenant in the lease may be refundable when the lease ends. For Montana landlords to charge a non-refundable fee, it must be disclosed and agreed as such in the lease.
Shared Utilities Arrangements Sets terms for how to divide utility costs up on properties which share a utility meter with other units. This ensures tenants receive fair charges and understand what uses contribute to their bill.
Smoking Informs tenants of designated smoking areas that do not interfere with the quiet enjoyment of other tenants.

Consequences of Not Including Mandatory Disclosures

Mandatory disclosures outline important health, safety, and property information for the benefit of both landlord and tenant. A landlord who fails to provide federally or state-mandated disclosures could face legal consequences or monetary penalties, either from a tenant lawsuit or from state officials. Many lease provisions may be unenforceable without legally required disclosures.

Failure to comply with the federal lead-based paint hazard disclosure risks fines of tens of thousands of dollars per violation.

 

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