The Grupp Law Firm LLC provides estate planning and family office services from Jackson Hole, Wyoming, with a commitment to helping your family flourish—now and for generations to come. We guide families in gifting their wealth meaningfully to create a lasting, multi-generational legacy.
We believe true wealth goes beyond financial assets. A family’s capital includes spiritual, intellectual, social, and human dimensions—and building this broader Wealth alongside you is our goal. Families who invest in their qualitative capital are better equipped to thrive and pass on enduring values.
Every family faces its own set of dangers, opportunities, and strengths. That’s why we offer highly personalized legal and advisory services tailored to your unique goals. Whether you’re seeking tax planning, investment alignment, or a family education strategy, your solutions will be integrated and relationship-driven.
As a Wyoming-based firm, we help families take advantage of the state’s unique tax and estate planning benefits. To learn more, download our summary of Wyoming’s advantages.
Our Values
Judgement
Using our expertise to build and transfer your family’s wealth
Courtesy
Treating clients and 3rd parties with respect and acting with a servant’s heart.
Diligence
Placing your family’s flourishing as our highest priority.
Our Process
To start your journey, contact us and we will guide you through the following process, which we call The Heroic Family Journey.
Discovery – “The Call”
Clarify your goals and gather key information.
Design – “The Threshold”
Build a plan tailored to achieve those goals.
Implementation – “The Solution”
Draft, sign, and fund the legal structures.
Administration – “The Transformation”
Maintain and update your plan over time.
Our Professionals
Matthew Grupp, J.D., LL.M.
Private Client Attorney
Dena Mertz
Vice President of Operations
Michael Estrada
Director of Private Client Services
Kayanne Yarrow
Private Client Services Manager
Our Story
In 2005, Matthew Grupp founded a trust and estate practice with a singular focus: to put families first and help them flourish. That commitment continues today through The Grupp Law Firm LLC, where we provide estate planning and family office services rooted in transparency, integrity, and the best interests of each client. Over the years, our team has earned lasting trust through exceptional client care. What began as a dedicated estate planning practice has grown into a full-service firm that integrates advisors for family offices across the country.