Atty. James Jay Knappenberger

Atty. James Jay Knappenberger

James Jay Knappenberger is a lawyer practicing personal injury law, workers compensation, criminal law and 20 other areas of law. James received a A.B. degree from University of Nebraska at Lincoln, and has been licensed for 49 years.

Clayton Clayton 49 yrs experience 49 year
Call (314) 899-5830 Book Appointment

Profile Summary

About James Jay Knappenberger at a glance

James Jay Knappenberger is a Member based in Clayton, Missouri, practicing at James J. Knappenberger, Attorney, LLC. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on divorce, dui/dwi, car accidents, child custody, and probate. Admitted to practice in Missouri (1977). Educated at Washington University J.D. (—) and University of Nebraska at Lincoln A.B. (—). Serands clients in Clayton, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • James Jay Knappenberger is a lawyer practicing personal injury law, workers compensation, criminal law and 20 other areas of law
  • James received a A.B. degree from University of Nebraska at Lincoln, and has been licensed for 49 years
  • James practices at James J. Knappenberger, Attorney, LLC in Clayton, MO

Practice Areas Explained

James Jay Knappenberger's Areas of Practice

Each practice area below reflects the types of cases James Jay Knappenberger handles, with a brief overview of what that area of law covers.

Divorce

A divorce attorney guides you through property division, spousal support, custody, and the final decree — contested or uncontested.

James Jay Knappenberger is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in Missouri →

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.

James Jay Knappenberger is one of 29,976 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Missouri →

Car Accidents

Hurt in a car crash? Car accident lawyers fight insurance companies for fair compensation — free consult, no fee unless you win.

James Jay Knappenberger is one of 36,807 car accidents attorneys indexed nationally. Browse car accidents attorneys in Missouri →

Child Custody & Visitation

James Jay Knappenberger is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in Missouri →

Probate

James Jay Knappenberger is one of 128,014 probate attorneys indexed nationally. Browse probate 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 James Jay Knappenberger

Where is James Jay Knappenberger's law office located?
James Jay Knappenberger's law practice is located in Clayton, Missouri. The firm is James J. Knappenberger, Attorney, LLC. You can contact the office directly through this profile page.
What practice areas does James Jay Knappenberger handle?
James Jay Knappenberger focuses on divorce, dui/dwi, car accidents, child custody, probate. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has James Jay Knappenberger practiced law?
James Jay Knappenberger has 49+ years of legal experience and has been licensed since 1977.
Where did James Jay Knappenberger go to law school?
James Jay Knappenberger earned their education at (—); (—).
How can I contact James Jay Knappenberger for a consultation?
You can contact James Jay Knappenberger 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

Washington University J.D.
- In Progress
University of Nebraska at Lincoln A.B.
- In Progress

Bar Admissions

Missouri
Admitted: 1977

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