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St. Louis, MO



  • Tulane University School of Law, J.D., 2006
  • Princeton University, B.A. in History, magna cum laude, 2003


  • Missouri
  • Illinois
  • District of Columbia
  • Maryland
  • U.S. Courts of Appeals for the
    • 7th Circuit
    • 8th Circuit
  • U.S. District Courts for the
    • Eastern District of Missouri
    • Northern District of Illinois
    • Southern District of Illinois
    • District of Maryland
    • District of Columbia

Practice Description

Charles N. Insler concentrates his practice on complex commercial litigation including antitrust and unfair competition litigation, appellate work, business torts, class action litigation, securities litigation, and cybersecurity. He also has experience representing clients in various insurance matters and has defended employers against discrimination claims. Mr. Insler represents a variety of clients in both state and federal courts.

Before joining HeplerBroom, Mr. Insler worked for a boutique firm in Baltimore, litigating class action securities fraud and fiduciary duty cases in state and federal courts around the country. Before that, he served as the law clerk to a Federal Magistrate Judge on the U.S. District Court for the Eastern District of Missouri and as a staff attorney for the U.S. Court of Appeals for the Sixth Circuit.

Mr. Insler is an accomplished writer, and his works, both legal and non-legal, have appeared in national and international publications.

Bar/Professional Associations

  • American Bar Association
    • Forum on Communications Law
  • Defense Research Institute
  • Illinois Bar Association
  • The Missouri Bar
  • Missouri Organization of Defense Lawyers
  • St. Louis County Bar Association

Law School Honors/Involvement

  • Tulane Maritime Law Journal
    • Managing Editor
  • Highest Grade in Constitutional Law: Freedoms of Speech and Press

Published Legal Writing

External Publications

  • “Rule 317, Appeal as a Matter of Right,” Illinois Bar Journal (May 2021). (This article can be read here.)
  • “Will the Proposed Amendments to the Biometric Information Privacy Act (BIPA) Be Retroactive?” Business Law Today (April 2021). (This article can be read here.)
  • “Litigation under the Biometric Information Privacy Act after Rosenbach: Still a Wild Ride,” Illinois Bar Journal (January 2020).
  • “How to Tackle Litigation under the Biometric Information Privacy Act,” The Computer and Internet Lawyer (December 2018).
  • “Understanding the Biometric Information Privacy Act Litigation Explosion,” Illinois Bar Journal (March 2018).

HeplerBroom Blog Posts

For a complete list of Published Legal Writing, click here.

Legal Lectures & Presentations

  • “Recent Significant Developments in Consumer Protection Law,” American Bar Association audio seminar (July 14, 2020). (co-presenter)
  • “Data Security and Privacy Issues Know No Borders,” 14th Annual Sedona Conference Institute: eDiscovery, Data Privacy, and Security (St. Louis MO, 2020). (Co-presenter)
  • “The Rise of Litigation Under Illinois’s Biometric Information Privacy Act,” HeplerBroom Employment Law Seminar (Edwardsville IL, 2017)
  • “Crafting a Cyberinsurance Policy,” HeplerBroom University (Edwardsville IL, 2017)
  • “Improving Your Legal Writing,” HeplerBroom University (Edwardsville IL, 2015; St. Louis MO, 2016).

Representative/Recent Case Results

  • Won summary judgment for an international restaurant franchisor in a wrongful death action before the U.S. District Court for the Eastern District of Missouri.
  • Successfully defeated requests for injunctive relief that would have prevented the Illinois Gaming Board from selecting a casino license applicant. Both the Circuit Court for Cook County and the First District Court of Appeals denied the requests for injunctive relief.
  • Won an appeal of an adverse ruling in the district court for a valve supply company seeking coverage from its insurer before the U.S. Court of Appeals for the Seventh Circuit.
  • Won a $2.5 million fee award for a hog farming operation under the Illinois Farm Nuisance Suit Act in the Circuit Court for Scott County.
  • Affirmed a jury verdict award in favor of a hog farming operation and won the cross-appeal to obtain an attorneys’ fee award for a hog farming operation in a matter of first impression before the Fourth District Court of Appeals in Illinois.

For a complete list of Representative/Recent Case Results, click here