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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
    • 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

  • “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).
  • “O-M-G. Worst Article EVERRRR!!! Or when Does the Yelp-fueled Takedown Rise to Defamation,” Communications Lawyer (Fall 2017).
  • “Raging Zombies: Kill Nominalizations, Breathe Life Back into Briefs,” For the Defense (October 2017).

HeplerBroom Blog Posts

  • “The Biometric Information Privacy Act (BIPA) Is Back Before the Illinois Supreme Court,” HeplerBroom Blog (February 9, 2021). (This blog post can be read here.)
  • “Could the Illinois Biometric Information Privacy Act (BIPA) Have a One-Year Statute of Limitations?” HeplerBroom Blog (November 3, 2020.) (This blog post can be read here.)
  • “Facebook Tagged for $550 Million Settlement,” February 4, 2020. (This blog post can be read here.)
  • “Is the Illinois Biometric Information Privacy Act (BIPA) Unconstitutional?” July 16, 2019. (This blog post can be read here.)
  • “Get Ready for a Wild Ride: The Illinois Supreme Court Decides that a Bare Violation of BIPA Supports a Cause of Action, with No Actual Injury Required,” January 29, 2019. (This blog post can be read here.)

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

  • Affirmed a jury verdict award in favor of a hog farming operation and obtained an attorneys’ fee award for the farming operation in a matter of first impression before the Fourth District Court of Appeals in Illinois.
  • Won a significant arbitration award for a private investor in a FINRA arbitration proceeding against a major brokerage firm and its registered representative. Confidential (2019)
  • Obtained affirmance of dismissal and obtained an attorneys’ fee award for pharmaceutical company against Fortune-50 food production company in breach of contract action before U.S. Court of Appeals for the Seventh Circuit.
  • Obtained dismissal on personal jurisdiction grounds for auto parts manufacturer in copyright and trademark infringement action in U.S. District Court for the Eastern District of Missouri.
  • Discovered the identity of anonymous Yahoo! email address associated with defamatory and disparaging emails in a Rule 224 action in Peoria County, Illinois.

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


HeplerBroom LLC COVID-19 Response

HeplerBroom has been diligently working on its response and continuity plan to the COVID-19 pandemic in order to keep the health and safety of our employees, their families, and our clients as our top priority.

To help ensure everyone's continued health and well-being, effective March 17, 2020, all attorneys and staff began working remotely. We continue to assess the situation and will return to our physical offices when appropriate.

To ensure this, the firm has identified essential personnel in each office who will make certain that critical firm functions that cannot be done remotely continue to be handled. We have put in place protocol for those essential personnel to make sure they are keeping healthy per the CDC cleaning and sanitizing recommendations. All teams have back-up personnel and procedures that we will follow to make sure all deadlines are met and clients receive the same great service and work product that we have always been proud to provide.

HeplerBroom's IT department has been working hard to make sure all remote employees are set up with equipment and access from home to limit disruption to our clients. Maintaining security and confidentiality has remained, and will continue to remain, at the forefront of all processes and procedures, at all levels throughout the firm.

The firm has created emergency communication measures to communicate any changes to this plan to employees and are communicating on a regular basis with any and all new resources and helpful information during this uncertain time.

During these fluid and unpredictable times, HeplerBroom will continue its commitment to great service and results for our clients, all while keeping safe and healthy.

Wishing you and your families good health.

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