Probate in Lake County, Montana: 2026 Guide

This guide is for educational purposes only and is not legal advice. Laws change frequently — verify current requirements with the Lake County probate court or an attorney.

Last updated: February 15, 2026

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Overview

Lake County is located in Montana with a population of approximately 33,403. The Twentieth Judicial District Court handles all probate and estate matters for decedents who were domiciled in the county at the time of death.

Montana probate is governed by Title 72 of the Montana Code Annotated. The process begins with filing a Petition for Probate to admit the will and appoint a personal representative. The court then issues Letters Testamentary for testate estates or Letters of Administration for intestate estates.

Montana offers a simplified procedure for small estates. If the value of the entire estate, less liens and encumbrances, does not exceed $50,000, successors may use an Affidavit for Collection of Personal Property 30 days after death to collect assets without full court administration.

Montana does not have a statutory fee schedule for attorneys or personal representatives; fees must be reasonable based on services provided.

This guide provides an informational overview of the Lake County probate process. It is not legal advice and is not a substitute for consulting a qualified attorney. Laws and local procedures may change — verify current requirements with the court.

Courthouse Information

Twentieth Judicial District Court

Probate matters in Lake County are handled at the Lake County Courthouse.

Address: 106 4th Avenue E, Room 301, Third Floor, Polson, MT 59860

Phone: (406) 883-7256 (Clerk of District Court)

Hours: Monday through Friday, 8:00 AM to 5:00 PM

The Clerk of District Court is located in the main courthouse building on the third floor. The Twentieth Judicial District serves both Lake and Sanders counties.

Parking and Access

Street parking is generally available around the courthouse in Polson. The building is accessible to the public during standard business hours.

Filing Process

Step 1: Determine If Probate Is Necessary

Before filing, assess whether formal probate is required:

  • Small Estate Affidavit: If the estate is valued at $50,000 or less (less liens), you may be able to use an Affidavit for Collection of Personal Property after a 30-day waiting period.
  • Non-Probate Transfers: Assets with designated beneficiaries (like life insurance or POD accounts) or held in joint tenancy with right of survivorship pass directly to the beneficiary.
  • Trust administration: Assets held in a living trust generally do not require probate.

Step 2: File the Petition

If formal probate is needed, file a Petition for Probate with the Twentieth Judicial District Court. Include:

  • Original Will (if applicable)
  • Certified Death Certificate
  • Order Appointing Personal Representative
  • Letters Testamentary or Letters of Administration (proposed)
  • Filing fee ($100)

E-filing may be available; check with the Clerk of Court for current electronic filing options and requirements.

Step 3: Provide Notice

After filing, you must:

  • Mail notice of the hearing to all heirs, beneficiaries, and interested parties.
  • Publish notice to creditors in a newspaper of general circulation in Lake County (such as the Lake County Leader) once a week for three successive weeks.

Step 4: Attend the Hearing

The court will review the petition. For informal probate, this is often handled administratively by the clerk without a formal hearing unless there are objections. For formal probate, a hearing is scheduled. If approved, the court issues Letters.

Step 5: Administer the Estate

After receiving Letters, the personal representative must:

  • Notify creditors and allow 4 months for claims to be filed.
  • Inventory and appraise all estate assets within 9 months of appointment.
  • Pay valid creditor claims and estate expenses.
  • File federal and state tax returns as needed.
  • Distribute assets to beneficiaries.
  • File a final accounting and petition for discharge to close the estate.

Local Requirements

Lake County-Specific Procedures

  • Local Court Rules: The Twentieth Judicial District has specific local rules regarding scheduling and document formatting.
  • Publication: Notice to creditors must be published in a newspaper of general circulation in Lake County, such as the Lake County Leader.
  • Bond: A bond may be required unless waived by the will or by the court.

Always check with the Clerk of District Court for the most up-to-date local filing requirements.

Timeline & Fees

Filing Fees (Lake County)

  • Petition for Probate: approximately $100.00
  • Certified copies of Letters: approximately $2.00 certification fee + copy costs ($1.00/page)
  • Publication costs: approximately $100-$200 depending on the newspaper
  • Recording fees: Varies by document length (if recording deeds)

Payment Methods

The court typically accepts cash, checks, or money orders. Credit cards may be accepted with a processing fee; verify with the clerk.

Estimated Timelines

  • Simple estates: 6-9 months (minimum 4 months for creditor claims)
  • Average estates: 9-18 months
  • Complex or contested estates: 18 months to 2+ years

The timeline is largely dictated by the 4-month creditor claim period and the time needed to liquidate assets and resolve tax matters.

Local Resources

Lake County Court Resources

  • State Bar of Montana: (406) 442-7660 — Professional association for attorneys.
  • Montana Legal Services Association: (800) 666-6899 — Civil legal aid for low-income residents.
  • Lawyer Referral Service: https://www.montanabar.org

Publication

  • Lake County Leader: (406) 883-4343 — Newspaper of general circulation in Polson.

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County Forms

Montana Probate Forms

Statewide forms for informal and formal probate.

Frequently Asked Questions

Where do I file for probate in Lake County?
File at the Clerk of District Court office in the Lake County Courthouse, 106 4th Avenue E, Room 301, Third Floor, Polson, MT 59860.
How much does probate cost in Lake County?
The filing fee to open an estate is $100. Additional costs include publication (approx. $100-$200) and certified copies.
Can I avoid probate in Lake County with a small estate?
Yes, if the estate value (less liens) is $50,000 or less, you may use an Affidavit for Collection of Personal Property 30 days after death.
How long does probate take in Lake County?
A simple estate takes at least 6 months due to the 4-month creditor claim period. Complex estates can take 1-2 years.
Do I need an attorney for probate in Lake County?
Montana law does not strictly require an attorney, but probate can be complex. The court clerk cannot give legal advice, so hiring an attorney is often recommended.

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Informational guidance only — not legal advice

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Probate laws and local court rules in Lake County, Montana may change without notice. Consult a qualified attorney for advice specific to your situation. SwiftProbate is not a law firm and does not provide legal representation.