Does a home seller have to disclose the property’s condition in Montana?

In Montana, there is no general condition statement, but the seller or the seller’s agent must give the buyer the statutory radon disclosure statement, which the buyer signs, on a document signed before or with the offer, must hand over any radon test results the seller knows of, and an owner who knows the home was a methamphetamine or fentanyl lab or was contaminated by their use must tell a purchaser in writing before the sale is agreed unless it has been remediated by a certified contractor. The radon test results and evidence of any mitigation must be given before or when the contract is entered into, and the statute says it does not create a contingency or a right to rescind unless the contract expressly provides one. A seller or seller’s agent who complies with the radon requirements is not liable in any action based on the presence of radon in the building. The methamphetamine or fentanyl notice must be given before agreement to a lease or sale. Federal law separately requires a lead-based paint disclosure when selling most homes built before 1978. This is Mont. Code Ann. §§ 75-3-606, 75-10-1305.

WhatMontana
Seller disclosureRadon notice and any meth or fentanyl contamination
Kind of ruleOnly specific written disclosures are required

What the statute says

“A radon disclosure statement must be provided on at least one document, form, or application executed prior to or contemporaneously with an offer for the purchase and sale of inhabitable real property.”

Quoted word for word from the section’s text.

Source

Mont. Code Ann. §§ 75-3-606, 75-10-1305

Read the statute in the Montana Code Annotated (Montana Legislature): leg.mt.gov.

Checked against the statute on November 15, 2026.

This is a summary of a published statute, not legal advice. Rules change, local ordinances can add to them, and the terms of a specific lease may differ. Check the citation and speak to a lawyer before acting.

How Seayora uses this rule

This page states the state’s rule so the costs and paperwork of a sale can be checked against it before a contract is signed. An owner on Seayora keeps each property’s owners of record and its documents in one place.

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