Dan has tried and won more railroad cases than any other defense attorney in the Chicago area. He has represented railroads, real estate companies, manufacturers, and other target defendants in civil litigation in federal and state courts on both a regional and national level for over 30 years. He founded Daley Mohan Groble in 1995 on the principle that attorneys should represent clients’ businesses as rigorously and efficiently as if they were representing their own.

Dan spent the first ten years of his career with a Fortune 500 railroad company as a trial attorney, where he earned an exceptional record of jury verdict wins, He then worked in an executive role, where he gained special insight and empathy for the challenges facing business management. Dan serves as national and regional counsel for publicly traded companies, as outside general counsel for privately held businesses and in leadership roles of national industry associations. He served as President of the National Association of Railroad Trial Counsel (NARTC) in 2017 & 2018, and has taught at, and helped run, a national trial college for over a decade.

Dan frequently instructs other attorneys and risk management personnel in investigation, litigation and trial practice strategies at national industry and association seminars and at client specific events. He is licensed to practice law in four Midwestern states and handles and tries cases nationally. Dan has been named a Leading Lawyer from 2019 through 2022 for the state of Illinois, an honor earned by fewer than 5% of Illinois attorneys.


  • Loyola University School of Law, J.D., 1984
  • University of Notre Dame, B.A., 1981


  • Illinois
  • Iowa
  • Minnesota
  • Wisconsin


  • U.S. District Court for the Northern District of Illinois (Member, Trial Bar)
  • U.S. District Court for the Central District of Illinois
  • U.S. District Court for the Eastern District of Wisconsin
  • U.S. Court of Appeals for the Third Circuit
  • U.S. Court of Appeals for the Seventh Circuit

Dan has a tremendous reputation for winning difficult trials in tough environments. He is fearless, creative and aggressive—these traits have allowed him to achieve an enviable winning record at trial.