Cochenour Law Office, PLLC
At Cochenour Law Office, PLLC, we understand that every case carries real consequences for the people we represent. That’s why we approach each matter with thorough preparation, strategic judgment, and unwavering integrity. From pre-litigation through trial and appeals, we serve our clients with strong advocacy, clear guidance, and a steadfast commitment to justice.
Our practice focuses on civil litigation and contract criminal prosecution with a mission to stand alongside our clients during challenging times and fight for fair, just outcomes. Whether it means presenting a case to a jury, negotiating a resolution, or navigating a complex appeal, we are committed to protecting our clients’ rights and ensuring their voices are heard.
As partners in both life and law, we bring complementary strengths to every case—Mary with her trial-tested advocacy and compassionate counsel, and Matt with his deep appellate background and strategic insight. Together, we provide comprehensive representation tailored to each client’s needs.
At Cochenour Law Office, your case matters. Your story matters. We are here to listen and to make sure your voice is heard in the courtroom and beyond.
Matt Cochenour
A seasoned civil litigation and appellate advocate, Matt has argued before both the Montana Supreme Court and the U.S. Court of Appeals for the Ninth Circuit and represented clients at every level, from justice court to the United States Supreme Court. Over the course of his career, he has authored more than 90 appellate briefs and handled complex constitutional and statutory litigation in state and federal courts. Clients turn to Matt for his strategic judgment, clear writing, and steady advocacy from pre-litigation counsel through appeal.
Matt served as Montana’s Acting Solicitor General (2019–2021) following 13 years as an Assistant Attorney General. He later worked as Senior Tax Counsel at the Montana Department of Revenue (2021–2023). His extensive public service experience provides valuable insight into how trial courts, appellate courts, and opposing counsel approach cases—insight he brings directly to his clients.
Matt earned his B.A. in English Literature from Montana State University and his J.D. with high honors from the University of Montana School of Law. Following law school, Matt clerked for the Montana Supreme Court. Matt is admitted to practice before all state and federal courts in Montana, the Ninth Circuit Court of Appeals, the D.C. Circuit Court of Appeals, and the United States Supreme Court. At Cochenour Law Office, he is committed to achieving just results through vigorous, ethical, and effective representation. Matt’s practice focuses on appellate litigation, federal and state court litigation, mediation, and consulting.
Mary Cochenour
With more than twenty years of courtroom experience, Mary has tried cases before judges and juries throughout Montana, from Wolf Point to Anaconda and almost every county in between. She is known for her meticulous preparation, persuasive advocacy, and steady presence in high-stakes matters. Whether prosecuting crimes on behalf of Montana communities or representing individuals and organizations in civil disputes, Mary brings a deep commitment to justice and fairness to every case.
Earlier in her career, Mary served as an Assistant Attorney General prosecuting a heavy caseload of high-profile violent crimes, including homicide, sexual assault, and domestic violence cases. That experience sharpened her trial skills and reinforced her belief that every client deserves a strong advocate in the courtroom. Having worked with victims of the most horrific crimes, Mary brings a trauma-informed approach to connecting with and advocating for her clients.
Mary earned her B.A. in Journalism and Business from the University of Nevada, Reno, and her J.D. from the University of Montana School of Law. After law school, Mary clerked for the Montana Supreme Court and worked as both a public defender and a prosecutor in Lewis and Clark County. Mary worked as a special prosecutor under Attorney General Steve Bullock and for Attorney General Tim Fox. Mary left career as a statewide criminal prosecutor to advocate for environmental justice as a Supervising Senior Attorney for Earthjustice’s Northern Rockies Office. At Cochenour Law Office, she is dedicated to protecting her clients’ rights, advocating for victims of crime, and fighting for fair outcomes at trial.
Mary is admitted to practice in state and federal courts in Montana and Nevada and the Ninth Circuit Court of Appeals.
