Atty. Patrick Niall Mehan

Atty. Patrick Niall Mehan

Patrick Niall Mehan is a lawyer practicing commercial litigation, general trial and appellate practice, personal injury and 3 other areas of law. Patrick received a B.A. degree from St.

Clayton Clayton 33 yrs experience 33 year
Call (314) 445-1063 Book Appointment

Profile Summary

About Patrick Niall Mehan at a glance

Patrick Niall Mehan is a Partner based in Clayton, Missouri, practicing at Butler Mehan LLC. They have 33+ years of legal experience, licensed to practice since 1993. Their practice focuses on personal injury, business, workers comp, creditor rights, and traffic. Admitted to practice in Missouri (1993) and U.S. District Court, Eastern District of Missouri (1994). Educated at St. Louis University (J.D., 1993) and St. Louis University (B.A., 1990). Recognitions include AV Preeminent. Active member of St and Louis County Bar Association (Member, Executive Committee) The Missouri Bar Missouri Association of Trial Attorneys. Serands clients in Clayton, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Patrick Niall Mehan is a lawyer practicing commercial litigation, general trial and appellate practice, personal injury and 3 other areas of law
  • Patrick received a B.A. degree from St. Louis University in 1990, and has been licensed for 33 years
  • Patrick practices at Butler Mehan LLC in Clayton, MO

Practice Areas Explained

Patrick Niall Mehan's Areas of Practice

Each practice area below reflects the types of cases Patrick Niall Mehan handles, with a brief overview of what that area of law covers.

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Patrick Niall Mehan is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Missouri →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Patrick Niall Mehan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

Workers Compensation

Workers compensation lawyers help injured workers get medical care, lost wages, and disability benefits. Free consult, no fee unless you win.

Patrick Niall Mehan is one of 55,389 workers comp attorneys indexed nationally. Browse workers comp attorneys in Missouri →

Creditor Rights & Collections

Patrick Niall Mehan is one of 42,948 creditor rights attorneys indexed nationally. Browse creditor rights attorneys in Missouri →

Traffic Violations

Patrick Niall Mehan is one of 14,506 traffic attorneys indexed nationally. Browse traffic 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 Patrick Niall Mehan

Where is Patrick Niall Mehan's law office located?
Patrick Niall Mehan's law practice is located in Clayton, Missouri. The firm is Butler Mehan LLC. You can contact the office directly through this profile page.
What practice areas does Patrick Niall Mehan handle?
Patrick Niall Mehan focuses on personal injury, business, workers comp, creditor rights, traffic. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Patrick Niall Mehan practiced law?
Patrick Niall Mehan has 33+ years of legal experience and has been licensed since 1993.
Where did Patrick Niall Mehan go to law school?
Patrick Niall Mehan earned their education at (J.D., 1993); (B.A., 1990).
How can I contact Patrick Niall Mehan for a consultation?
You can contact Patrick Niall Mehan 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.
What awards or recognition has Patrick Niall Mehan received?
Patrick Niall Mehan's notable recognition includes: AV Preeminent.

Education

J.D.
St. Louis University
- 1993
B.A.
St. Louis University
- 1990

Awards

AV Preeminent

Bar Admissions

Missouri
Admitted: 1993
U.S. District Court, Eastern District of Missouri
Admitted: 1994

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