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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

  • “Medicare Secondary Payer News, Notes, and Trends for 2022,” HeplerBroom Blog (January 25, 2022). (This blog post can be read here.)
  • “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)