Atty. Stuart L O'Brien

Atty. Stuart L O'Brien

Stuart L O'Brien is a lawyer practicing criminal defense, probate, dui & dwi and 2 other areas of law. Stuart has been licensed for 32 years.

Clayton Clayton 32 yrs experience 32 year
Call (314) 377-0608 Book Appointment

Profile Summary

About Stuart L O'Brien at a glance

Stuart L O'Brien is a Member based in Clayton, Missouri, practicing at Dunlop & McCarter. They have 32+ years of legal experience, licensed to practice since 1994. Their practice focuses on dui/dwi, probate, criminal defense, estate planning, and poa. Admitted to practice in Missouri (1994) and Illinois (1995). Educated at Loyola University New Orleans College of Law (JD, 1994). Serands clients in Clayton, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Stuart L O'Brien is a lawyer practicing criminal defense, probate, dui & dwi and 2 other areas of law
  • Stuart has been licensed for 32 years
  • Stuart practices at Dunlop & McCarter in Clayton, MO

Practice Areas Explained

Stuart L O'Brien's Areas of Practice

Each practice area below reflects the types of cases Stuart L O'Brien handles, with a brief overview of what that area of law covers.

DUI / DWI Defense

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

Stuart L O'Brien is one of 29,976 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Missouri →

Probate

Stuart L O'Brien is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Missouri →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Stuart L O'Brien is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Missouri →

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

Stuart L O'Brien is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in Missouri →

Power of Attorney

Stuart L O'Brien is one of 33,188 poa attorneys indexed nationally. Browse poa attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Clayton are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Missouri courts without local counsel or pro hac vice admission.

Looking for additional Missouri attorneys? Browse all attorneys in Clayton or all attorneys in Missouri.

Frequently Asked

Common questions about Stuart L O'Brien

Where is Stuart L O'Brien's law office located?
Stuart L O'Brien's law practice is located in Clayton, Missouri. The firm is Dunlop & McCarter. You can contact the office directly through this profile page.
What practice areas does Stuart L O'Brien handle?
Stuart L O'Brien focuses on dui/dwi, probate, criminal defense, estate planning, poa. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Stuart L O'Brien practiced law?
Stuart L O'Brien has 32+ years of legal experience and has been licensed since 1994.
Where did Stuart L O'Brien go to law school?
Stuart L O'Brien earned their education at (JD, 1994).
How can I contact Stuart L O'Brien for a consultation?
You can contact Stuart L O'Brien directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

JD
Loyola University New Orleans College of Law
- 1994

Bar Admissions

Missouri
Admitted: 1994
Illinois
Admitted: 1995

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