Atty. William N. Seibel

Atty. William N. Seibel

William N. Seibel is a lawyer practicing criminal law, dwi, driver's license reinstatement and 6 other areas of law.

O'Fallon O'Fallon 52 yrs experience 52 year
Call (636) 849-4850 Book Appointment

Profile Summary

About William N. Seibel at a glance

William N. Seibel is a Member based in O'Fallon, Missouri, practicing at William N. Seibel Jr. Attorney At Law. They have 52+ years of legal experience, licensed to practice since 1974. Their practice focuses on dui/dwi, criminal defense, juvenile, and traffic. Admitted to practice in Missouri (1974). Educated at University of Missouri (J.D., 1974) and University of Missouri (B.A., 1971). Recognitions include BV Distinguished. Active member of St and Vice-Chairman, Criminal Law Committee, 1977-1978, Charles County Bar Association The Missouri Bar. Serands clients in O'Fallon, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William N. Seibel is a lawyer practicing criminal law, dwi, driver's license reinstatement and 6 other areas of law
  • William received a B.A. degree from University of Missouri in 1971, and has been licensed for 52 years
  • William practices at William N. Seibel Jr. Attorney At Law in O'Fallon, MO

Practice Areas Explained

William N. Seibel's Areas of Practice

Each practice area below reflects the types of cases William N. Seibel 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.

William N. Seibel is one of 29,976 dui/dwi attorneys indexed nationally. Browse dui/dwi 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.

William N. Seibel is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Missouri →

Juvenile Law

William N. Seibel is one of 30,631 juvenile attorneys indexed nationally. Browse juvenile attorneys in Missouri →

Traffic Violations

William N. Seibel 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 O'Fallon 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 O'Fallon or all attorneys in Missouri.

Frequently Asked

Common questions about William N. Seibel

Where is William N. Seibel's law office located?
William N. Seibel's law practice is located in O'Fallon, Missouri. The firm is William N. Seibel Jr. Attorney At Law. You can contact the office directly through this profile page.
What practice areas does William N. Seibel handle?
William N. Seibel focuses on dui/dwi, criminal defense, juvenile, traffic. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has William N. Seibel practiced law?
William N. Seibel has 52+ years of legal experience and has been licensed since 1974.
Where did William N. Seibel go to law school?
William N. Seibel earned their education at (J.D., 1974); (B.A., 1971).
How can I contact William N. Seibel for a consultation?
You can contact William N. Seibel 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 William N. Seibel received?
William N. Seibel's notable recognition includes: BV Distinguished.

Education

J.D.
University of Missouri
- 1974
B.A.
University of Missouri
- 1971

Awards

BV Distinguished

Bar Admissions

Missouri
Admitted: 1974

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