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Steven J. Costello

Steven J. Costello

Steven J. Costello

Personal Note

Steven Costello joined Hennessy & Roach, P.C. in September of 2021 as a partner in the Saint Louis, Missouri office. Steve earned his Bachelor of Arts degree from Loyola University of Chicago in 1994 and his Juris Doctor from Chicago-Kent College of Law in 1997. He is a licensed attorney in the State of Illinois and defends Respondents in workers' compensation claims throughout the State of Illinois. In his free time, Steve enjoys traveling and studying architecture. He is fluent in both German and French.


  • Chicago-Kent College of Law , 1997
  • Loyola University of Chicago, 1994


  • Steve has argued before various Appellate Courts in Illinois and has tried many cases with successful results.
  • Steve has drafted thousands of contracts.
  • Steve enjoys investigating cases and interviewing potential witnesses.
  • Steve enjoys writing briefs and arguing cases on appeal.

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