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Edwardsville, IL



  • St. Louis University, J.D., cum laude, 1994
  • St. Louis University, M.B.A., 1988
  • St. Louis University, B.S.B.A. in Finance, cum laude, 1984


  • Illinois
  • Missouri
  • U.S. District Courts for the
    • Southern District of Illinois
    • Eastern District of Missouri

Practice Description

Sean P. Sheehan focuses his practice on trials involving complex litigation matters, including toxic torts, personal injury, wrongful death, and asbestos products, premises, supplier, distributor, contractor, and employer liability.

Bar/Professional Associations

  • Madison County Bar Association
  • The Missouri Bar

Law School Honors/Involvement

  • International Law Society
  • James S. McDonnell Scholar

Other Professional Activities

  • Pro bono legal assistance, Madison County Legal Self-Help Center
  • Interviewer, St. Louis University Scholarship Committees
    • Presidential Scholarship
    • Dr. Martin Luther King, Jr. Scholarship
  • Evaluator, Missouri State High School Activities Association Mock Trial Competition

Published Legal Writing

  • “PAID Act Heralded as Benefit to Those Resolving Injury Claims with Medicare Beneficiaries,” HeplerBroom Blog (January 28, 2021). (This blog post can be read here.)
  • “MAP Can Bring Secondary Payer Private Cause of Action,” CLM Magazine (December 2018).
  • “Madison County and Cook County Trial Courts Disagree on the Interpretation of Illinois' Corporate Dissolution Statute in Asbestos Cases," Midwest Toxic Release, Vol. 18 No. 3 (2018). (This article can be read here.)
  • “U.S. House Bill Requires CMS to Disclose Beneficiaries’ Enrollment Status in Private Medicare Parts C & D and Medicaid,” HeplerBroom Blog (June 13, 2018). (This blog post can be read here.)
  • “Developments and Considerations Affecting Resolution of Claims with Plaintiffs Enrolled in Medicare Part C or Part D,” IDC Quarterly, Vol. 28, No. 2 (2018). (This article can be read here.)
  • “Private Health Insurance Companies Can Seek Double Damages Remedy Under Medicare Secondary Payer Act,” HeplerBroom Blog (December 5, 2017).  (This blog post can be read here.)
  • “Garretson Resolution Group Introduces Product to Streamline Medicare’s Recovery and Reporting Requirements in Malignant Asbestos Injury Cases,” HeplerBroom Blog (March 2, 2016). (This blog post can be read here.)
  • “Regulation of Transfrontier Shipment of Hazardous Waste,” St. Louis University International Law Monitor (1993)

Legal Lectures & Presentations

  • “Mental Health and Substance Abuse in the Legal Field,” HeplerBroom University, Edwardsville, Illinois (2020, 2018)
  • “Settling the Asbestos Claim,” Asbestos and Mesothelioma Claims Litigation webinar, National Business Institute (2018) (co-presenter)
  • "Settlement Documents: Who Should Sign," HeplerBroom University, Edwardsville, Illinois (2017, 2015)
  • "Medicare Reporting Under MMSEA§111: Why, Who, When, How, What," HeplerBroom University, Edwardsville, Illinois (2012)

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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