Mark L. Johansen Photo

A veteran trial attorney and commercial litigator, Mark handles high-stakes litigation in state and federal courts. Mark also regularly represents clients in arbitration proceedings before the American Arbitration Association (AAA) and the Financial Industry Regulatory Association (FINRA). Mark has extensive experience in a wide variety of complex litigation matters involving multimillion-dollar contract disputes, mergers and acquisitions, business torts, securities and shareholder litigation, broker-dealer litigation, labor and employment, trade secrets and professional liability. Mark has also represented clients in SEC enforcement actions and internal investigations.


  • University of Oklahoma College of Law, 1986, J.D.
  • University of Texas, 1983, B.B.A.

  • Texas

  • U.S. Court of Appeals - Fifth Circuit
  • U.S. Court of Appeals - District of Columbia Circuit
  • U.S. District Court - Eastern District of Texas
  • U.S. District Court - Northern District of Texas
  • U.S. District Court - Southern District of Texas
  • U.S. District Court - Western District of Texas

  • State Bar of Texas, Member; Texas Bar Foundation, Fellow
  • Dallas Bar Association, Life Fellow; Business Litigation Section, Member
  • William (Mac) Taylor Inn of Court, Master
  • Big Brothers & Sisters of Metropolitan Dallas, Past Director

Awards & Recognition

  • Selected through peer review for inclusion in The Best Lawyers in America© for Commercial Litigation, 2016-2024
  • Selected for inclusion in the Texas Super Lawyers list for Business Litigation, 2003-2023
  • Selected as a “Best Lawyer in Dallas” in Business Litigation by D Magazine, 2014 – 2019; 2022
  • Peer review rated AV® in Martindale-Hubbell