Delivering Results Through Insights From Diverse Experience

Corporate defense lawyer. Plaintiffs’ lawyer.
In-house counsel.
Mediator. Arbitrator.

Mark Brown is the rare attorney who has been all of these things. His clients benefit from the valuable insights that the breadth and depth of his experience bring to all aspects of his role as both a counselor and an advocate.

Mark has successfully defended some of the largest corporations in the nation, in addition to representing individuals and small businesses in successful actions against some of the nation’s biggest companies. He has recovered and saved tens of millions of dollars for his clients.

He has managed teams of attorneys and has been responsible for hiring outside counsel and overseeing litigation in more than 30 states.

Mark has appeared in courtrooms from New York to California. As one federal judge once told him, “At first I didn’t understand why an Arizona company would hire a St. Louis lawyer to sue a New York defendant in Phoenix. When I saw your work, I understood.”

He also is a skilled mediator, helping adversaries find creative ways to resolve their disputes prior to trial. He even has used his talent as a mediator to help other lawyers settle their disputes with their own clients. He currently is one of only three lawyers in St. Charles County certified as a mediator by the U.S. District Court for the Eastern District of Missouri. This mediation experience gives Mark’s clients a competitive edge when he negotiates on their behalf.

Mark is a Strategist. An Investigator. An Interrogator. A Listener. A Thinker. A Counselor. A Storyteller. An Advocate.
A Trusted Advisor at Your Side. 



Mark graduated from Washington University School of Law in the top 15% of his class.  He began his career at the largest corporate defense firm in St. Louis before joining a national firm that currently has more than 2,500 lawyers in more than 50 countries.  He was Director of Litigation and Senior Counsel for a Fortune 500 Company, and he was a partner in a successful plaintiffs’ firm.


  • Washington University School of Law (Top 15%), 1994-1997
  • Thompson Coburn LLP, 1997-2002
  • Sonnenschein Nath & Rosenthal (now Dentons), 2002-2005
  • Charter Communications, Inc., 2005-2007
  • SL Chapman LLC, 2007-2015
  • Law Office of Mark Brown LLC, 2015-present
  • AV ("Preeminent") Rating From Martindale-Hubbell
  • Certified Federal Mediator


  • Missouri State Courts
  • Illinois State Courts
  • U.S. Court of Appeals for the Eighth Circuit
  • U.S. Court of Appeals for the Seventh Circuit
  • U.S. District Court for the Eastern District of Missouri
  • U.S. District Court for the Southern District of Illinois
  • U.S. District Court for the Central District of Illinois
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