USA Law Atlas

Lawyers in Clayton, MO

165 law firms. Choose a practice area to narrow the list.

Browse law firms in Clayton by practice area, confirm the attorney with The Missouri Bar, and contact firms directly.

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Finding a lawyer in Clayton

Clayton is the seat of St. Louis County, distinct from the independent city of St. Louis next door, and hosts the St. Louis County Courthouse, which hears most civil and criminal cases arising in the county. That role as county seat, combined with a cluster of office towers in the downtown core, has made Clayton a natural base for law firms serving St. Louis County residents and businesses without a downtown St. Louis address.

Legal issues people in Clayton bring to lawyers

Business lawyers in Clayton handle formation, contracts and commercial disputes for companies based in the city's office district. Family and divorce attorneys work through dissolution of marriage, custody and support matters in the St. Louis County circuit court. Personal injury and car accident lawyers pursue claims decided under Missouri's comparative fault rule, usually on a contingency fee. Criminal defense and DUI attorneys represent clients in St. Louis County's courts, including DWI cases and their separate license process. Real estate lawyers handle purchases, leases and landlord-tenant disputes tied to the area's commercial and residential growth. Estate planning and probate lawyers draft wills and trusts and guide families through the St. Louis County probate division.

Choosing a law firm in Clayton

Confirm the attorney's license through The Missouri Bar's public directory, which shows active, good-standing status; discipline matters are handled separately by the Office of Chief Disciplinary Counsel. Ask how often the firm appears in the St. Louis County circuit court for cases like yours, since procedures can differ from the neighboring city court, and who will actually handle your file day to day. Settle the fee arrangement — contingency, hourly or flat fee — in writing before any work begins.

Free and low-cost help

Legal aid programs serving St. Louis County provide free civil representation to low-income residents in housing, family and benefits matters. The metropolitan bar association runs a lawyer referral service for a low-cost first consultation, and area law schools operate clinics staffed by supervised students. Anyone facing criminal charges who cannot afford a lawyer may ask the court to appoint a public defender.

For specific help, see business lawyers in Clayton or family lawyers in Clayton. Nearby: lawyers in St. Louis.

See also Lawyers in Missouri for the rest of the state.

This page is general information, not legal advice. Laws change and every case is different — talk to a licensed Missouri attorney about your situation.

Updated 2026-09-29.

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