Mathis & Donheiser

Firm History

After years of practicing together, Randal Mathis and Mark Donheiser formed the law firm of Mathis & Donheiser, P.C., to focus on providing their clients with experienced, effective, and reliable trial and appellate representation. In the spring of 2001, the doors of Mathis & Donheiser were opened in downtown Dallas. Through their efforts, the firm earned a reputation for successful trial and appellate work. This success led to an expansion of their client base to include the representation of various individuals, national and international corporations, medical, legal, and athletic professionals, religious institutions, clergy, banking institutions, commercial entities, small businesses, manufacturers, high-rise condominium associations, and nonprofit organizations. With 40 years of practice experience, Mathis & Donheiser attorneys have adeptly handled challenging civil litigation and appeals with national and international consequences, ranging from art law, banking disputes, catastrophic personal injury, wrongful death, product liability litigation, natural and propane gas explosions, will and trust contests, firearms liability, boating accidents, professional liability actions, to sexual abuse claims. The firm is especially skilled in handling high-profile matters while maintaining the utmost confidentiality and professionalism.
Mathis & Donheiser’s appellate practice has been involved in over 200 appellate oral arguments and argued numerous jury charges. Winning numerous appeals has garnered Mr. Donheiser an outstanding record in the appellate courts, and he has achieved wide recognition for his appellate work. Our appellate practice is involved in every aspect of the firm’s case planning and trial preparation. The appellate lawyers continually exhibit creative analytical abilities, excellent legal research, and exemplary writing skills when handling various appeals, and during the many aspects of trial preparation. The appellate practice pursues and defends appeals at every level in state and federal courts displaying excellent advocacy for our clients. The firm values each client whatever their legal challenges may present. Mathis & Donheiser attorneys are dedicated and trained to consider all aspects of a client’s legal concerns and to keep the client’s best interest at the forefront of their representation while providing effective, responsive, and respectful counsel.

Practice Areas

  • Alternative Dispute Mediation and Settlement Planning
  • Appellate Matters (including interlocutory appeals, mandamus actions, and amicus briefs)
  • Arbitration
  • Art Law
  • Bank Disputes
  • Business and Partnership Dissolution Disputes
  • Civil Cases-State and Federal (including those with related criminal proceedings)
  • Civil Matters (including those with news media involvement)
  • Commercial and Business Litigation
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  • Condominium Law (high-rise condominiums)
  • Constitutional Law
  • Defamation (libel or slander)
  • Defense of “Anti-Slapp” Motions (and their appeals)
  • Defensive Proceedings before the Texas Commission on Judicial Conduct
  • Firearms Liability
  • Gas Explosions (natural and propane gas)
  • Guardianship Resistance
  • Healthcare, Nursing Home, and Medical Products
  • Insurance Defense and Coverage Disputes
  • Personal Injury (including catastrophic injuries)
  • Product Liability (including automobile, boating, and firearms)
  • Professional Malpractice Liability
  • Religious Institutions (including clergy liability)
  • Sexual Abuse Claims
  • Trust and Fiduciary Matters
  • Vaccine Claims before the U.S. Court of Claims
  • Wills and Estates (including breach of contract to make a will and will contests)
  • Wrongful Death Actions
Mathis & Donheiser, P.C., 1412 Main Street, Suite 2600, Dallas, Texas, 75202-4006 214-303-1919