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

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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Stanley Schulist

Feb 02, 2026

Professional service and clear communication provided by O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC in undefined

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...

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Neil Emard

Feb 02, 2026

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

Solid experience overall with the law firm of O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC. They know law inside and out and gave me great advice. Very helpful and got the job done exact...

L

Lonnie Sipes

Feb 02, 2026

Would recommend O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC for sure to anyone in undefined needing legal help

I've already told all my friends and family about O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC. If you need law help in undefined, they're the ones to see without any doubt. They are loc...

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Christina Christiansen

Feb 02, 2026

Five stars for the incredible team at O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC in undefined - they are amazing

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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Wilfred Effertz

Feb 02, 2026

So happy with the results of my case thanks to the hard work of O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC and staff

I didn't think I'd find such a good lawyer in undefined, but here we are and I am thoroughly impressed. O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC is just awesome and exceeded all my e...