Montana (MT) · Open house rules

Open house rules for Montana agents

What Montana asks of an open house host: when the subsequent agency disclosure is due, how the state no call list treats a visitor who gave you permission, when a written buyer broker agreement is required, and the eight year clock on the file.

Last reviewed August 31, 2026Every claim links to a primary source

This is not legal advice

We are software people, not lawyers. This page is a plain reading of public Montana sources, gathered so you can go read them yourself. Rules change, and how any rule applies to your situation is a question for your broker, your association, or an attorney licensed in Montana.

When do you hand a visitor the agency disclosure?

Montana ties this to negotiations rather than to the front door. At an open house you are working the listing side, and the initial written disclosure on that side already went to the seller at the time the listing agreement was executed. What the visitor is owed is the subsequent disclosure, and 37-51-314 says that one goes to the buyer or buyer agent at the time negotiations commence. Subsection (7) sets what it has to carry: it must be written, it must identify the type of relationship being disclosed, and it must have the signature of the buyer it is given to and the date. A conversation at an open house can turn into a negotiation in one sentence, so keep printed copies at the sign-in table instead of going to look for the form after that happens.

The subsequent disclosure established in subsection (7) must be made to the buyer or buyer agent at the time negotiations commence.
Montana Code Annotated 37-51-314 (opens the source in a new tab)

Checked at the source on August 31, 2026

Can you call an open house visitor afterwards?

Montana runs a state no-call list, and its telemarketing definition turns on consent and recency. A call is not a telephone solicitation under this part at all when the person gave prior express invitation or permission, or when you have had a business contact with them within the past 180 days. That is what makes the sign-in worth doing properly, because it is where the permission gets captured, and a follow-up that goes out this week sits far more comfortably than one that surfaces six months later. The same definition separately carves out a person licensed by Montana who is setting or attempting to set an appointment relating to that licensed profession, so a call proposing an actual showing time fits that carve-out far better than a general check-in does. Two limits are worth holding on to: this statute reaches voice communication over a telephone line, and every carve-out in it is a carve-out from Montana's own law only.

"Telephone solicitation" means any voice communication over a telephone line from a live operator, through the use of an automatic dialing-announcing device, or by other means for the purpose of encouraging the purchase of, rental of, or investment in property, goods, or services. Telephone solicitation does not include communications: (a) to any residential subscriber with that subscriber's prior express invitation or permission; (b) by or on behalf of any person or entity with whom a residential subscriber has had a business contact within the past 180 days or has a current business or personal relationship;
Montana Code Annotated 30-14-1601(4) (opens the source in a new tab)

Checked at the source on August 31, 2026

Does a visitor have to sign a buyer agreement first?

Not to walk through the house. Montana's requirement attaches to the work rather than to the doorway, because 37-51-313 says a licensee must obtain a written buyer broker agreement or a written listing agreement before performing the acts of a buyer agent or a seller agent. The same section also recognizes a statutory broker, who is not the agent of the buyer or the seller but still owes both of them disclosure of adverse material facts and reasonable care, so answering a visitor's questions about the property does not by itself make you their agent. The moment to get something signed is when you agree to advise that visitor, negotiate on their behalf, or go find them other properties. Note that this is Montana's own licensing statute rather than the MLS settlement rule, and the two are worth keeping separate in your head.

A licensed broker or salesperson must obtain an appropriate written buyer broker agreement or written listing agreement prior to performing the acts of a buyer agent or a seller agent.
Montana Code Annotated 37-51-313 (opens the source in a new tab)

Checked at the source on August 31, 2026

How long do you have to keep what a visitor gives you?

Montana's Board of Realty Regulation runs a long clock on real estate paperwork. Its forms guide for brokers and salespersons sends licensees to ARM 24.210.601(1) and puts real estate related documents, including agency agreements and all other real estate related documents, on an eight year retention period measured from the latter of the date of receipt or the date the transaction was completed. The same guide's checklist of what a seller agent file should contain names the Agency Disclosure and the Subsequent Agency Disclosure by statute, so the disclosure form a visitor signs at your table is a file document sitting on that clock rather than something that ends when the event does. Those checklists name transaction documents and disclosure forms, not a visitor list, so treat the two differently: let the signed paperwork live in the file, and keep the raw sign-in contacts down to the people you are genuinely still working.

Trust account records and real estate related documents, including sales contracts, leases and options, agency agreements, closing statements, and all other real estate related documents shall be maintained for eight years from the latter of the date of receipt or the date the transaction was completed.
Montana Board of Realty Regulation forms guide, citing ARM 24.210.601(1) (opens the source in a new tab)

Checked at the source on August 31, 2026

How this page is put together

  • Every claim above carries a link to a primary source, plus the exact words from that source that support it. If a claim cannot be quoted, it is not on this page.
  • Each claim shows the date a human last opened that link and confirmed the quote still says what it says.
  • We only cover what we could source. A topic you were hoping to find may be one we have not confirmed yet, so treat this as a starting point rather than a complete list of everything Montana expects of you.

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