John Allen is an experienced litigator who focuses his practice on defending employers and their insurers in a wide variety of workers’ compensation claims and defending businesses in maritime, personal injury, product liability, commercial, employment, and environmental lawsuits throughout the Midwest. As a business counselor, John advises companies on a variety of matters, including business creation, corporate transactions, employment-related matters, and various operational issues. He possesses an AV rating from Martindale-Hubbell.

John has represented employers and insurers in Missouri and Illinois throughout the entire workers’ compensation process. He has handled claims for his clients from the initial accident investigation, through trial, and on appeal. John’s maritime experience includes representing operators and insurers from discovery through trial in maritime cases involving personal injury and property damage in some of the most difficult venues in the country. John has also served as statewide counsel for an insurer that underwrites liability claims against hardware stores in Missouri, and he has represented a Fortune 500 company in commercial and employment matters in jurisdictions around the country. John’s environmental work includes representing a landowner in an environmental dispute involving soil, water, and air contamination, and he also successfully represented a major oil refiner in a CERCLA contribution action involving the remediation of a former refinery.

  • Martindale-Hubbell Peer Review Rating: AV Preeminent
Professional Affiliations
  • Missouri Bar Association
  • Illinois Bar Association
  • American Bar Association
  • Claims and Litigation Management Alliance
  • National Retail and Restaurant Defense Association (NRRDA)
Admitted to Practice
  • Missouri 
  • Illinois 
  • U.S. District Courts for the Northern and Southern Districts of Illinois 
  • U.S. District Courts for the Eastern and Western Districts of Missouri 
  • U.S. District Court for the District of Colorado
  • St. Louis University School of Law, J.D., 2000
  • St. Louis University, B.A., 1996
  • Presenter, "Missouri Workers' Compensation," Falls Lake Insurance, Raleigh, NC, May 30, 2018
  • Co-Presenter, "Admiralty and Maritime Law," Berkley One, Wilmington, DE, May 16, 2018