The Theut Law Firm

Practice Areas

  • Guardianships
  • Conservatorships
  • Mental Health
  • Elder Abuse/Exploitation 
  • Juvenile Law
  • Injury 

Our Approach

Mark Theut began practicing law in Maricopa County over 35 years ago. Over time, our family law firm grew into an established probate, injury, family law, mental health, and juvenile law firm.  We handle Guardianship, Conservatorship, Estates, Injury, Mental Health, Elder Abuse/Exploitation, and Juvenile Law matters. These matters sometimes overlap into multiple judicial divisions. The firm's experience in these matters allows us to assist in matters across the divisions of Maricopa County Superior Court. 

Our Family Fights for Arizona Families

The Theut family helps clients navigate personal legal matters with the goal of resolutions that preserves resources and limits stress. Theut, Theut, and Theut P.C. can help you with your legal issues. 


Theut, Theut & Theut, P.C.  is a family-owned law practice that provides legal representation for clients across the State of Arizona. Our firm handles complex and sensitive issues for our clients with a focus on cost minimization, preservation of assets, and the safety, health and dignity of protected persons.

Legacy of Success

Theut, Theut & Theut's philosophy is simple: practice law the way our father practiced law before he became a Probate Judge. Judge George "Jack" Theut was on the Probate bench for 28 years in the State of Michigan. Judge Theut was the former President of the Michigan Probate Judges Association.


Mark Theut has been practicing in Arizona since 1981. Paul Theut and Christopher Theut joined their brother upon admission to the State Bar of Arizona in 1988, followed by Brian Theut in 1992. Mark and Chris are also admitted in Michigan. Additionally, Mark is admitted in Florida.

Our Team

Mark J. Theut

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Mark Theut began practicing law in Michigan in 1979. After moving to Arizona, he was admitted to the State Bar of Arizona and founded his practice in 1981. He has experience in Business Law, Probate and Trusts, and Mental Health Law and litigation. Mark served on the Maricopa County Bar Association Estate Planning Probate & Trust Section and served as Chair for 2011-2012. He served as a member and Chair of the State Bar of Arizona's Probate and Trust Section for 2014-2015. Mark is admitted to the U.S. District Court for the Western District of Michigan, U.S. District Court for the District of Arizona, and the United States Court Of Appeals for the Ninth Circuit. He attended the University of Detroit School of Law. Mark Theut was admitted to the State Bar of Michigan in 1979 and the State Bar of Florida in 1980. 

Paul J. Theut

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Paul J. Theut was admitted to the Arizona Bar in 1988. His practice focuses on Probate, Mental Health, and Elder Law matters.  Additionally, Paul is experienced in handling personal injury cases. Paul is frequently appointed as a Guardian ad Litem in various Probate matters in Maricopa County. Paul is recognized as having experience  in Probate matters. Paul served as chair for the Maricopa County Bar Association's Juvenile Section. He is Sustaining Member of the Arizona Association For Justice.

Christopher P. Theut

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Christopher P. Theut was admitted to the Arizona Bar in 1988. His practice has consisted of matters in family court, dependency, and Probate Guardianships and Conservatorships. He is frequently appointed Best Interest Attorney and Guardian Ad Litem in Probate and Family Law matters by Maricopa County Superior Court. 

Brian J. Theut

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Brian J. Theut was admitted to the Arizona Bar in 1992. He is frequently involved with Guardianships, Conservatorships, Mental Health, and Juvenile matters.  In addition, he has worked on many difficult elder exploitation and abuse cases in the State of Arizona. Brian is often retained as a dependency attorney to protect children who would otherwise be at risk.