William B. Mardis

Liam Mardis is a trial lawyer who represents individuals and business clients in the areas of complex litigation involving business and commercial disputes, class actions, and insurance coverage lawsuits.
photo of attorney William B. Mardis


Liam Mardis is an associate trial lawyer who focuses his trial practice on defending businesses and individuals in lawsuits involving business and commercial disputes, insurance coverage, and class actions. During law school, Liam clerked at two law firms concentrating in class actions litigation and medical malpractice lawsuits providing Liam with valuable experience and insight into the successful representation of client in complex litigation. Since these firms represented both plaintiffs and defendants in lawsuits, Liam gained early insight into strategies on both sides of litigation allowing him to better represent his clients.

Prior to joining the firm, Liam graduated from St. Louis University School of Law, where he received the Law School Dean’s Scholarship. Outside of work, Liam enjoys traveling, golf, marathon running, reading, brewing beer, and spending time with his wife, Kaelene.

Awards & Achievements

  • Saint Louis University Dean’s Scholar



  • St. Louis University School of Law (J.D., 2023)
  • Washington University in St. Louis (B.S.B.A., 2019)

Bar Admissions

  • Missouri (2023)