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Mark concentrates his practice on complex commercial litigation, with a particular focus on the insurance and financial services industries. He treats his clients’ problems as his own and personally invests himself in every matter.

Using this approach, Mark has obtained favorable results for his clients for nearly 20 years. Much of Mark’s work involves high-stakes litigation for clients within the insurance industry.

He has represented insurers in bet-the-company fraud cases, insurance coverage claims involving hundreds of millions of dollars, and reinsurance disputes testing novel allocation and notice issues.

Mark also has experience representing clients in post-closing disputes arising from alleged fraud and breaches of representations and warranties in the course of mergers and acquisitions.

He has counseled companies and individuals on the enforceability of restrictive covenants, and has defended clients accused of breaching such covenants. In one notable case, Mark obtained dismissal of a corporate raiding claim and, in the process, convinced a court to strike the restrictive covenant used by his client’s largest competitor as overly broad and unenforceable.

Mark maintains an active pro bono practice. He has successfully represented clients from the Lawyers for the Creative Arts and the National Immigrants Justice Center, including a recent victory, following trial, on behalf of a man seeking asylum and relief under the Convention against Torture. In 2017 Mark worked with the Illinois Torture Inquiry and Reconciliation Commission to submit a recommendation that the Illinois Circuit Court grant a new trial to a man incarcerated for a capital offense based on credible evidence that the prisoner’s confession was coerced.


  • University of Michigan Law School  (J.D., cum laude, 1999)
  • University of California at Los Angeles  (B.A., summa cum laude, 1995)

Bar Admissions

  • Illinois
  • U.S. District Court for the Northern District of Illinois
  • U.S. District Court for the Eastern District of Wisconsin

Honors & Awards

  • Illinois Super Lawyers®
  • Illinois Super Lawyers®, Rising Star, 2011-2012