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O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC

St. Louis, Missouri
THE BEST LAWYERS IN AMERICA® AWARDS:: 6 BEST LAW FIRMS® AWARDS:: 5

About O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC

The personal injury lawyers at O’Leary, Shelton, Corrigan, Peterson, Dalton & Quillin are experienced in representing countless individuals who have been injured due to the negligence of others in St. Louis and throughout the country.

Office Locations

St. Louis, MO

The University Tower, Penthouse-1A, 1034 South Brentwood Boulevard, 23rd Floor, St. Louis, MO 63117

314-405-9000

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Awards & Recognition

Featured Awards

THE BEST LAWYERS IN AMERICA® AWARDS: 6

BEST LAW FIRMS® AWARDS: 5

All Awards

  • Top Listed in St. Louis in Product Liability Litigation - Plaintiffs with 5 lawyers

Key Contacts

Michael J. Dalton, Jr.

Partner

636.734.1012

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Reviews

4.5 / 5

57 Reviews

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Vickie Ankunding

Feb 02, 2026

Many thanks to O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC for the hard work and dedication to my legal matter

O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC is fantastic and very professional. Don't hesitate to hire them if you're in undefined and need help. They really know their stuff and will g...

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Leon McLaughlin

Feb 02, 2026

O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC did a great job handling my complex law case from start to finish

I appreciate how O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC handled my case. No fluff, just straight to the point and very effective representation for my law matter. They are obviousl...

K

Kenny Daniel

Feb 02, 2026

Excellent legal representation provided by O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC for my law case

Super helpful and professional staff at O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC's office. Thanks again for everything you did for me! It was a long journey, but you made it much eas...

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Glen Bailey

Feb 02, 2026

Excellent legal representation provided by O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC for my law case

Best lawyer for law in undefined. Period. I've seen others, but O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC is on another level. They truly care about their clients and work hard to get...

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Isaac Boehm

Feb 02, 2026

Reliable lawyer you can count on - O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC provided excellent service throughout

I've worked with a few lawyers in undefined over the years, but O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC stands out for their honesty and thoroughness. They were clear about the proc...