James O'Leary, Class Action Attorney in St Louis, Missouri
Over 31 years of legal practice · focused on Class Action, Personal Injury, and Product Liability
Practicing class action in St Louis since 1995.
- 31+
- Years practicing
- 1
- Bar admission
Practices in
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Quick answer
James O'Leary is an attorney based in St. Louis, MISSOURI. The practice focuses on Class Action, Personal Injury, and Product Liability. James has over 31 years of legal experience. Currently practicing at O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC.
- Based in
- St. Louis, MISSOURI
- Experience
- over 31 years
- Known for
- Class Action · Personal Injury · Product Liability
- Handles Class Action, Personal Injury, and Product Liability matters from St. Louis, MISSOURI.
- Over 31 years of practice as a licensed attorney.
- Recognized with Best Lawyers in America — Mass Tort Litigation / Class Actions - Plaintiffs (2026).
About James O'Leary: James O'Leary is an attorney based in St. Louis, MISSOURI. The practice focuses on Class Action, Personal Injury, and Product Liability. James has over 31 years of legal experience. Currently practicing at O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC.
Areas of practice
Practice areas handled by James O'Leary
James concentrates on class action, personal injury, and product liability. Each area below outlines the kind of case James handles, typical outcomes to expect, and how the intake process starts.
Class Action
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Personal Injury
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Product Liability
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Class Action cases in St Louis, Missouri
James takes class action matters in St Louis, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before James agrees to represent you.
Personal Injury cases in St Louis, Missouri
James takes personal injury matters in St Louis, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before James agrees to represent you.
Product Liability cases in St Louis, Missouri
James takes product liability matters in St Louis, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before James agrees to represent you.
Biography
About James O'Leary — Over 31 years of Missouri class action experience
James O'Leary is an attorney based in St. Louis, MISSOURI. The practice focuses on Class Action, Personal Injury, and Product Liability. James has over 31 years of legal experience. Currently practicing at O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC.
James O'Leary is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs.
James, who practices law in St. Louis, Missouri, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James is held by other top lawyers in the same geographic and legal practice area.
How James handles class action matters
James O'Leary is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. James, who practices law in St. Louis, Missouri, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in…
The kind of cases James takes
James reviews new inquiries case-by-case for class action, personal injury, and product liability matters in St Louis and the surrounding Missouri area.
Credentials
James O'Leary's legal education and bar admissions
Saint Louis University
— · 1995
University of Tulsa
— · 1992
Jurisdictions
James's state bar admissions
Missouri
1995 · ACTIVE
James studied at — in Saint Louis University and — in University of Tulsa.
Law school and academic background
James completed — in Saint Louis University and — in University of Tulsa. Formal legal training is one signal of substantive knowledge — the day-to-day practice James runs in Missouri is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of James O'Leary
James has received 7 formal recognitions from bar associations, industry bodies, and peer-review services.
Best Lawyers in America — Mass Tort Litigation / Class Actions - Plaintiffs
2026
Best Lawyers in America — Personal Injury Litigation - Plaintiffs
2026
Best Lawyers in America — Product Liability Litigation - Plaintiffs
2026
Best Lawyers in America — Additional Areas of Practice:
2026
Best Lawyers in America — Litigation - Construction
2026
Best Lawyers in America — Awards:
2026
Best Lawyers in America — Multi-Million Dollar Advocates Forum
2026
Legal awards and honors
Best Lawyers in America — Mass Tort Litigation / Class Actions - Plaintiffs (2026). Best Lawyers in America — Personal Injury Litigation - Plaintiffs (2026). Best Lawyers in America — Product Liability Litigation - Plaintiffs (2026). Best Lawyers in America — Additional Areas of Practice: (2026). Best Lawyers in America — Litigation - Construction (2026). Best Lawyers in America — Awards: (2026).
Locations
James O'Leary's office in St. Louis
James's primary office is at 1034 South Brentwood Boulevard, 23rd Floor, St. Louis, Missouri, 63117. In-person meetings are by appointment; a phone intake usually comes first.
O'Leary, Shelton, Corrigan, Peterson, Dalton & Quillin LLC
1034 South Brentwood Boulevard, 23rd Floor
St. Louis, Missouri 63117
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Schedule your consultationHiring guide
How to hire James O'Leary — what to expect in your first consultation
Working with a new class action attorney should feel structured. Here's how the first two conversations with James usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
James charges for the initial consult. That fee is credited toward representation if you retain James's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; James will tell you what matters and what doesn't.
Questions to ask a class action attorney in St Louis, Missouri
A short list to run through before you commit: How many class action matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for James
James discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in class action practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every class action matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. James confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
James's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many class action practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about James O'Leary
How much does it cost to hire James for a class action case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. James walks through the likely range during the consult so there are no surprises.
Does James offer a free consultation?
James charges for the initial consult; that fee is credited toward representation if you retain James's office. Some class action attorneys offer free consults — check James's current terms during booking.
How long do class action cases in Missouri typically take?
Simple class action matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. James gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can James take my case if I'm outside St Louis?
James is licensed in Missouri. Matters governed by Missouri law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — James will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with James?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. James will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is James accepting new class action clients right now?
James's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Class Action attorneys serving St Louis, Jefferson City and Kansas City in Missouri
James handles class action matters throughout Missouri. Each city below is a direct link into the search page for verified class action attorneys in that community.
More counsel
Other top-rated class action attorneys in Missouri
If James's intake is full or the fit isn't right, these class action attorneys in St Louis handle similar matters. Every profile below is verified and open to consultations.





