Kari S. Peterson

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: 314-405-9999
Selected To Super Lawyers: 2015 - 2020
Selected To Rising Stars: 2014
Licensed Since: 2000
Practice Areas:
  • Personal Injury - General: Plaintiff (40%),
  • Workers' Compensation: Claimant (30%),
  • Personal Injury - Products: Plaintiff (20%),
  • Class Action/Mass Torts: Plaintiff (10%)
  • Free Consultation
Attorney Profile

Kari S. Peterson is a founding partner of O’Leary, Shelton, Corrigan, Peterson, Dalton & Quillin, and represents clients throughout the country and in St. Louis. She handles cases of catastrophic injury, trucking accidents, wrongful death, electrocutions, auto accidents, premises liability, product liability, workplace injuries, dog bites, pharmaceutical and drug litigation, and workers’ compensation. Throughout her career, she has fought for the rights of her clients and has successfully handled complex cases against large corporations and Fortune 500 companies with a commitment to never giving up.

Kari has successfully handled many complex cases across the state of Missouri. She obtained $1,200,000.00 for the family of a man killed in a side by side/UTV rollover accident in Stoddard County.  Kari represented a client and her family in a roll-over car accident that caused serious injuries, including a fractured vertebra and was able to resolve their case for $1,177,000.00.  Kari’s clients include numerous individuals whose injuries resulted in amputations due to electrocution, powerline and manufacturing accidents.  She has successfully resolved these cases for confidential sums.  

Named one of Missouri’s Top 40 Under 40 Litigation Lawyers by the American Society of Legal Advocates, she was also named by The National Trial Lawyers as a Top 10 Trial Lawyer in Missouri. Ms. Peterson was given the Client Distinction Award by Martindale-Hubbell, and KC Magazine has repeatedly listed her as a Top Plaintiff’s Personal Injury Attorney. She was appointed to The Missouri Bar’s Workers’ Compensation Committee in 2004.


While earning her Juris Doctor from the University of Missouri-Kansas City, Ms. Peterson was given an American Jurisprudence Award and was an editor for The Urban Lawyer Law Journal.  She was recognized for her student leadership in the school and was on the Dean's List.  

Ms. Peterson is a member of the Bar Association of Metropolitan St. Louis, the American Association of Justice, the American Bar Association and the Missouri Association of Trial Attorneys. She is also admitted to practice in Illinois, Kansas, Missouri and the U.S. District Court for the Western and Eastern Districts of Missouri.

Practice Areas
  • 40%Personal Injury - General: Plaintiff
  • 30%Workers' Compensation: Claimant
  • 20%Personal Injury - Products: Plaintiff
  • 10%Class Action/Mass Torts: Plaintiff
Focus Areas

Animal Bites, Motor Vehicle Accidents, Personal Injury - Plaintiff, Slip and Fall, Wrongful Death, Dram Shop Laws, Construction Accident, Brain Injury, Trucking Accidents, Premises Liability - Plaintiff, Motor Vehicle Defects, Medical Devices, Pharmaceutical, Products Liability, Class Actions, Toxic Torts


Selected to Super Lawyers for 6 yearsmiddle-imageSelected to Rising Stars for 1 years

Super Lawyers: 2015 - 2020 Rising Stars: 2014

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About Kari Peterson

Admitted: 2000, Missouri

Professional Webpage: https://osclaw.com/kari-peterson/


  • 2019 Missouri & Kansas Super Lawyer, Missouri Super Lawyer, 2019
  • Missouri Super Lawyer , 2017
  • Missouri Super Lawyer , 2018
  • Top 100 Trial Lawyers in Missouri, Top 40 under 40 Litigation Lawyers in Missouri, 2014 Missouri and Kansas Rising Stars    
  • Martindale-Hubbell
  • Super Lawyers named Kari a Rising Star
  • Missouri Super Lawyer, 2015
  • Missouri Super Lawyer, 2016

Bar/Professional Activity:

  •  American Bar Association
  • American Association for Justice
  • Eastern and Western District of the Missouri Federal Courts
  • Missouri Association of Trial Attorneys
  • Bar Association of Metropolitan St. Louis

Pro bono/Community Service:

  • Serves on the Board of Kids’ Chance, Inc. of Missouri. Kids’ Chance is a not-for-profit organization which provides post-high school scholarships to children of Missouri workers killed or disabled on the job. In addition to being on the Board, Kari is a member of the Scholarship Committee, where applications for scholarships are reviewed for approval

Industry Groups

  • American Bar Association
  • American Society Of Legal Advocates
  • Bar Association Of St. Louis
  • Kids Chance Missouri
  • Missouri Association Of Trial Attorneys
  • National Trial Lawyers
Find Me Online
Website - www.osclaw.com
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Office Location for Kari S. Peterson

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

Phone: 314-669-7084

Fax: 314-405-9999

Kari S. Peterson:

Last Updated: 12/28/2020

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