Who we Are

Billstein & Monson Law is a specialized law firm representing individuals, families, business owners, and the not for profit community. We advise in the areas of business planning, estate planning, contracts, mergers and acquisitions, debt and equity financing, tax-exempt entities, probate and trust administration, real estate and estate, gift or income taxation. Our focus is to assist clients in maximizing current and generational wealth while avoiding litigation and disputes.

Areas of Practice

Business Planning


Estate Planning

Liquor, beer and wine license application

Mergers and Acquisitions

Non-profit Organizations

Probate and trust administration

Real Estate


Debt and equity financing

Meet Our Team

Andrew Billstein


Andrew was born and raised in Billings, Montana.  After leaving Billings for seven years to attend Hillsdale College, in Hillsdale, Michigan, followed by law school at the University of Montana School of Law, in Missoula, Montana, Andrew returned to Billings and began practicing law in September 2003.   Andrew is grateful for the support of his wife, Jennelle, and two children, Abigail and Hanley.   Andrew is proud to be a present or past board member of the Better Billings Foundation, Big Sky Youth Education Foundation, Billings Christian Schools, Billings Symphony Society and Faith Evangelical Church.

Andrew has been recognized by Martindale-Hubble, the primary lawyer listing service in the U.S. as an AV-rated lawyer, the highest ranking one can achieve.

Mike Monson


Mike was also born and raised in Billings, Montana.  Mike received a degree in business administration from Montana State University-Billings and practiced as a Certified Public Accountant prior to attending law school at the University of Montana School of Law.  Mike has practiced law in Billings since September 2006 and is joined by his wife and three sons.  Mike is an adjunct professor of law at Montana State University-Billings and serves on the Board of Advisors of the Montana State University-Billings College of Business, and the Board of Directors of the Yellowstone Boys and Girls Ranch.

Mike has been recognized by both of America’s Leading Lawyers for Business and The Best Lawyers in America.

Get in Touch

3860 Ave B, Suite C, Billings MT 59102
F: 406-294-5702
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