Irene J. Marusic

Principal
Irene Marusic focuses her trial practice on defending clients in alleged sexual assault and abuse cases, and cases involving high exposure complex medical issues, wrongful death, and criminal acts on business property.
photo of attorney Irene J. Marusic

Overview

Irene Marusic concentrates her practice on the defense of complex liability and medical issues, including alleged criminal acts on business property, sexual assault and abuse, premises claims, wrongful death claims, complex medical causation issues, and high exposure general liability litigation. Throughout her career, she has represented clients that include national and regional insurance carriers, local and national chain businesses, youth serving organizations, daycare facilities, religious and educational institutions, and church camps.

In the area of sexual abuse claims, Ms. Marusic routinely is involved in the complex constitutional issues surrounding the First Amendment right of freedom and exercise of religion as it relates to allegations against religious organizations. She has successfully represented clients in trials involving multimillion dollar demands and has appeared in the Missouri Supreme Court and appellate courts.

In the area of trial practice, Ms. Marusic has been recognized as one of the premier trial lawyers in Missouri. Her many awards include the annual “Winningest Defense Lawyer” awarded by the Missouri Lawyers Weekly publication in which she obtained five defense verdicts that year to achieve the award, and she has been regularly recognized by The Best Lawyers in America as a leading trial lawyer in her areas of concentration.

 

Past Results

Jury Trials
  • KIL v. Kastning, Webster County Circuit Court, Defense verdict in sexual abuse case
  • Barlow v. ADSO, Inc., St. Louis City Circuit Court, Defense verdict in assault case
  • Mundy v. Cowboys 2000, Greene County Circuit Court, Defense verdict in an assault case
  • Walls v. Geico Casualty Company, St. Louis City Circuit Court, Defense verdict in favor of carrier in uninsured motorist/vexatious refusal to pay case
  • Wolfe v. D&W Restaurants, LLC, Greene County Circuit Court, Defense verdict in trip and fall case
  • Witman v. Collette, Greene County Circuit Court, Defense verdict in trip and fall case
  • Wampler v. Speake, Greene County Circuit Court, Defense verdict in car accident case
  • Bushdiecker v. Mr. B’s Bar & Grill, St. Louis City Circuit Court, Defense verdict in slip and fall case where plaintiff claimed spinal injury and resulting surgery
  • Sehic v. Automobile Club Inter-Insurance Exchange, St. Louis City Circuit Court, Defense verdict in favor of carrier in theft/vexatious refusal to pay case
  • Williams v. Mark Twain Center Partnership, Marion County Circuit Court, Defense verdict in slip and fall case
  • Fowler v. Arrowhead Sale Facility, Jefferson County Circuit Court, Defense verdict in personal injury of minor alleging head injury
  • Nichols v. Mark Twain Center Partnership, Ralls County Circuit Court, Defense verdict in trip and fall case
  • Gegg v. Naeger, Ste. Genevieve County Circuit Court, Defense verdict in farming accident where plaintiff claimed spinal cord injury and total permanent disability
  • Ferguson v. Stumpf, St. Charles County Circuit Court, Defense verdict in car accident case
  • Dumas v. North End Tavern, Jefferson County Circuit Court, Defense verdict in trip and fall case
  • Soto Martinez et al v. Luke Burnham, St. Louis City Circuit Court, Defense verdict in car accident case
  • Daniels v. Automobile Club Inter-Insurance Exchange, St. Louis City Circuit Court, Defense verdict in uninsured motorist case
  • Lake v. Lake, Marion County Circuit Court, Defense verdict in trip and fall case
  • Sieckmann v. Interstate Brands, St. Louis City Circuit Court, Plaintiff’s jury verdict in favor of her client in excess of $10,000,000
Published Appellate Decisions
  • Jane Doe, by Next Friend, T.N. v. First Baptist Church of Pierce City, Court of Appeals, Southern District
  • Sherrell v. Brown, Missouri Court of Appeals, Eastern District
  • Fugate v. Heibel, Missouri Court of Appeals, Eastern District
Significant Summary Judgments
  • Whitaker v. Hired Hand, St. Charles County Circuit Court
  • Darden v. Glassworkers, Jefferson County Circuit Court
  • Stark v. Alexander, St. Louis City Circuit Court
  • Porter v. IBC Investors, St. Louis City Circuit Court
  • Perry v. P.M. Group, St. Louis City Circuit Court

Awards & Achievements

  • Best Lawyers - Litigation - Insurance (2021-2024, 2026, 2027)
  • Best Lawyers - Product Liability Litigation - Defendants (2021-2024, 2026, 2027)
  • Best Lawyers - Personal Injury Litigation (2026, 2027)
  • Winningest Defense Lawyer, Missouri Lawyers Weekly
  • Runner-Up, Winningest Defense Lawyer, Missouri Lawyers Weekly
  • Top Five Winningest Defense Lawyer, Missouri Lawyers Weekly
  • Litigation Practitioner Award Recipient, Women's Justice Awards, Missouri Lawyers Weekly
  • Super Lawyers, Personal Injury General: Defense, Missouri & Kansas Super Lawyers (2026)
  • Up and Coming Award Recipient, Missouri Lawyers Weekly
  • Executive Editor, Saint Louis University Public Law Review
  • Faculty Fellow, Associate Professor Carol A. Needham, Saint Louis University School of Law

Practices

Education

  • Saint Louis University, JD
  • Washington University, BA

Bar Admissions

  • Missouri
  • Illinois
  • U.S. District Courts for the Eastern and Western Districts of Missouri