About Matthew Peter
Matthew Peter Grupp trained at the University of Montana and completed his legal education at the University of Montana School of Law. He moved from classroom to courtroom after earning his law degree, taking the steps required to become licensed in multiple states. His academic background is rooted in Montana, and it provided the foundation for a practice that spans several jurisdictions.
Over the years Grupp gained admission to practice in Wyoming, New York and Idaho. He holds professional memberships that date back to 2000, and he added further memberships beginning in 2005 and 2016. Those long-standing ties to professional organizations have accompanied his career rather than defining it. He has balanced membership activity with appellate work, client counseling and courtroom representation as opportunities arose.
Grupp is associated with THE GRUPP LAW FIRM LLC. He has worked in private practice settings where managing client matters and overseeing case strategy are regular responsibilities. His record shows steady involvement in the legal community across multiple states. Colleagues describe him as practical and detail-oriented in approach, preferring clear steps over rhetoric when preparing filings or advising clients.
As of 2026 he remains licensed in three states and continues to maintain active professional affiliations that began in 2000, 2005 and 2016. He practices at THE GRUPP LAW FIRM LLC, handling matters for clients across the jurisdictions where he is licensed.
