Atty. James Joseph Leightner

Atty. James Joseph Leightner

James Joseph Leightner is a lawyer practicing divorce & separation, adoption, family and 2 other areas of law. James received a B.A. degree from University of Missouri at Columbia in 1983, and has been licensed for 40 years.

St. Louis St. Louis 40 yrs experience 40 year
Call (314) 944-2972 Book Appointment

Profile Summary

About James Joseph Leightner at a glance

James Joseph Leightner is a Member based in St. Louis, Missouri, practicing at Diekman & Leightner. They have 40+ years of legal experience, licensed to practice since 1986. Their practice focuses on divorce, child custody, family law, child support, and adoption. Admitted to practice in Missouri (1986). Educated at St. Louis City College of Law (J.D., 1986) and University of Missouri at Columbia (B.A., 1983). Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • James Joseph Leightner is a lawyer practicing divorce & separation, adoption, family and 2 other areas of law
  • James received a B.A. degree from University of Missouri at Columbia in 1983, and has been licensed for 40 years
  • James practices at Diekman & Leightner in St. Louis, MO

Practice Areas Explained

James Joseph Leightner's Areas of Practice

Each practice area below reflects the types of cases James Joseph Leightner 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 Joseph Leightner is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in Missouri →

Child Custody & Visitation

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

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

James Joseph Leightner is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Missouri →

Child Support

James Joseph Leightner is one of 24,688 child support attorneys indexed nationally. Browse child support attorneys in Missouri →

Adoption

James Joseph Leightner is one of 15,997 adoption attorneys indexed nationally. Browse adoption 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 St. Louis 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 St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about James Joseph Leightner

Where is James Joseph Leightner's law office located?
James Joseph Leightner's law practice is located in St. Louis, Missouri. The firm is Diekman & Leightner. You can contact the office directly through this profile page.
What practice areas does James Joseph Leightner handle?
James Joseph Leightner focuses on divorce, child custody, family law, child support, adoption. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has James Joseph Leightner practiced law?
James Joseph Leightner has 40+ years of legal experience and has been licensed since 1986.
Where did James Joseph Leightner go to law school?
James Joseph Leightner earned their education at (J.D., 1986); (B.A., 1983).
How can I contact James Joseph Leightner for a consultation?
You can contact James Joseph Leightner 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

J.D.
St. Louis City College of Law
- 1986
B.A.
University of Missouri at Columbia
- 1983

Bar Admissions

Missouri
Admitted: 1986

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