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Missouri roots. Broad reach.

Serving clients across the Midwest and beyond.

O’Brien Law Firm is based in Kirkwood and represents clients throughout Missouri and Illinois, across the Midwest, and in select serious matters nationwide. The locations below are examples, not limits on where the firm may help.

Firm office

Kirkwood, Missouri

135 W. Adams Ave., Suite 200
Kirkwood, MO 63122

Monday–Friday · 8:30 a.m.–4:30 p.m.

Why geography matters

Work histories, products, companies, witnesses, and records often cross city and state lines.

A person may have worked in several states, encountered products made elsewhere, lived near multiple facilities, or have claims involving companies and trusts located across the country.

Jobsites and industries

Local plants, refineries, railroads, utilities, construction projects, shipyards, and trades can shape the exposure history.

Venue and law

Where conduct occurred, where parties are located, and where a claim may be filed require legal analysis.

Regional records and witnesses

Union records, coworkers, product identification, and facility histories often cross jurisdictional lines.

Direct attorney guidance. Focused civil advocacy.
Not sure which location applies? Start with the exposure history.
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How regional representation works

Start with the facts, not an assumption about jurisdiction.

O’Brien Law Firm is based in Kirkwood, Missouri. Regional pages describe areas the firm serves; they do not represent separate office locations.

Where the events occurred

Worksites, institutions, witnesses, records, defendants, and treatment may connect a matter to more than one state.

Where a claim may proceed

Venue, jurisdiction, filing deadlines, available defendants, and applicable law require an individualized analysis.

How consultations work

Initial conversations may take place by phone or video, with travel and in-person meetings arranged when appropriate.