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James D. O'Leary

Attorney Profile

Top Rated Personal Injury Attorney in St. Louis, MO

O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC
1034 S. Brentwood Blvd., Penthouse 1-A, 23rd Floor
St. Louis, MO 63117
Phone: 314-669-7084
Fax: 314-844-3073
Selected to Super Lawyers: 2005, 2010 - 2021
Licensed in Missouri Since: 1995
Practice Areas: Personal Injury - General: Plaintiff, Personal Injury - Products: Plaintiff, Class Action/Mass Torts: Plaintiff
Attorney Profile

Founding partner at O’Leary, Shelton, Corrigan, Peterson, Dalton & Quillin, James D. O’Leary handles cases of personal injury, medical malpractice, product liability and pharmaceuticals. He also represents the people of St. Louis and throughout the country who have been injured in truck and bicycle crashes, negligence, workplace injuries, construction injuries, spinal and brain injuries, electric shock and electrocution, and premises liability.

For seven years, Mr. O’Leary worked for an insurance company, where he defended the company against claims and lawsuits made by injured individuals. With this experience and over 20 years in the legal field, he is fully prepared to take any case to trial to secure compensation for his clients when they have been injured by another.

In 1992, Mr. O’Leary graduated from The University of Tulsa, then earned a Juris Doctor in 1995 from Saint Louis University School of Law. He is admitted to practice in the state of Missouri and the U.S. District Court for the Eastern District of Missouri. For his commitment to legal ethics and professional accomplishments, he earned the highest peer rating possible of AV Preeminent* from Martindale-Hubbell.

Mr. O’Leary received the Lifetime Achievement Award in 2017 for America’s Top 100 Attorneys. In just over five years, he has secured more than $40 million for his clients. He is a member of the board of governors for the Missouri Association of Trial Attorneys and was chosen by the St. Louis Post-Dispatch for Peer Recognition and Achievement in 2016 and 2017. A long list of successful cases has helped him get into the Multi-Million Dollar Advocates Forum and the Million Dollar Advocates Forum.

* AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review Rating™ fall into two categories – legal ability and general ethical standards.

Practice Areas
  • 50%Personal Injury - General: Plaintiff
  • 30%Personal Injury - Products: Plaintiff
  • 20%Class Action/Mass Torts: Plaintiff
Focus Areas

Motor Vehicle Accidents, Personal Injury - Plaintiff, Slip and Fall, Wrongful Death, Trucking Accidents, Premises Liability - Plaintiff, Pharmaceutical


13 Years Super Lawyers
  • Super Lawyers: 2005, 2010 - 2021

About James D. O'Leary

First Admitted: 1995, Missouri

Professional Webpage:


  • Missouri Super Lawyer, 2010-2018
  • KC Magazine, as a Top Attorney in Plaintiff Personal Injury General Law
  • Million Dollar Advocates Forum, Member
  • Selected for Lifetime Achievement for America’s Top 100 Attorneys, 2017
  • Martindale-Hubbell AV rated attorney

Educational Background

  • University of Tulsa, 1992


  • Kramer v. Bax Engineering
  • Willett v. Harsco Corporation d/b/a Patent Construction Systems
  • Kohlfield v. Rock Hill Mechanical Corp.
  • N.R. v. Plaza Square Partners, LLC, et al.

Bar/Professional Activity

  • U.S. District Court, Eastern District of Missouri
  • Missouri
  • Missouri Association of Trial Attorneys, Board of Governors 
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Office Location for James D. O'Leary

1034 S. Brentwood Blvd.
Penthouse 1-A, 23rd Floor
St. Louis, MO 63117

Phone: 314-669-7084

Fax: 314-844-3073

Last Updated: 5/15/2022

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