Atty. Thomas J. Diehl

Atty. Thomas J. Diehl

Thomas J. Diehl, a Centerville, Ohio native, graduated from Centerville High School in 1981.

Lebanon Lebanon 38 yrs experience 38 year
Call (283) 221-8208 Book Appointment

Profile Summary

About Thomas J. Diehl at a glance

Thomas J. Diehl is a Managing Partner based in Lebanon, Ohio, practicing at Diehl Law, LLC. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on car accidents, truck accidents, wrongful death, personal injury, and family law. Admitted to practice in Ohio (1988) and U.S. District Court, Southern District of Ohio (1990). Educated at University of Cincinnati College of Law (J.D., 1988) and Miami University (B.S., 1985). Recognitions include BV Distinguished. Active member of Warren County and Ohio State Bar Associations Ohio Academy of Trial Lawyers. Provides legal services in English. Serands clients in Lebanon, OH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Thomas J. Diehl, a Centerville, Ohio native, graduated from Centerville High School in 1981
  • He earned a Bachelor of Science in Business Administration from Miami University in 1985 and a Juris Doctorate from the University of Cincinnati College of Law in 1988
  • Licensed by the Ohio Supreme Court and Federal District Court since 1988, Mr. Diehl has maintained a private practice in Lebanon, Ohio, since 1989
  • Specializing in personal injury law, he has represented over 3,000 clients in motor vehicle accident cases, recovering more than $50 million in damages
  • With over 30 years of experience, he has served as lead counsel in numerous jury trials, including high-profile cases featured on 20/20 and NPR
  • His published cases include Bemmes v
  • Public Employee Retirement Board and Willis v
  • Gall
  • From 2001 to 2005, Mr. Diehl served as an acting judge in Warren County Court
  • He is active in professional organizations, including the Ohio Association of Justice and the Warren County Bar Association, where he held leadership roles
  • Recognized as a Fellow of the Litigation Counsel of America and a member of the Million Dollar Advocate Forum, Mr. Diehl has also been named among the Top 100 Trial Lawyers by the National Trial Lawyers Association

Practice Areas Explained

Thomas J. Diehl's Areas of Practice

Each practice area below reflects the types of cases Thomas J. Diehl handles, with a brief overview of what that area of law covers.

Car Accidents

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

Thomas J. Diehl is one of 36,807 car accidents attorneys indexed nationally. Browse car accidents attorneys in Ohio →

Truck Accidents

Thomas J. Diehl is one of 4,975 truck accidents attorneys indexed nationally. Browse truck accidents attorneys in Ohio →

Wrongful Death

Thomas J. Diehl is one of 31,253 wrongful death attorneys indexed nationally. Browse wrongful death attorneys in Ohio →

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.

Thomas J. Diehl is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Ohio →

Family Law

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

Thomas J. Diehl is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Ohio →

Jurisdictional Context

Why local counsel matters in Ohio

Practicing law in Ohio. Legal matters in Ohio are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Lebanon are typically filed in the local municipal court or the appropriate Ohio state district court, depending on subject matter and amount in controversy. An attorney licensed in Ohio 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 Ohio courts without local counsel or pro hac vice admission.

Looking for additional Ohio attorneys? Browse all attorneys in Lebanon or all attorneys in Ohio.

Frequently Asked

Common questions about Thomas J. Diehl

Where is Thomas J. Diehl's law office located?
Thomas J. Diehl's law practice is located in Lebanon, Ohio. The firm is Diehl Law, LLC. You can contact the office directly through this profile page.
What practice areas does Thomas J. Diehl handle?
Thomas J. Diehl focuses on car accidents, truck accidents, wrongful death, personal injury, family law. Each practice area listed reflects experience handling cases of that type in Ohio.
How long has Thomas J. Diehl practiced law?
Thomas J. Diehl has 38+ years of legal experience and has been licensed since 1988.
What languages does Thomas J. Diehl speak?
Thomas J. Diehl provides legal services in English. Bilingual representation can be especially important when contracts, testimony, or court filings require accurate translation.
Where did Thomas J. Diehl go to law school?
Thomas J. Diehl earned their education at (J.D., 1988); (B.S., 1985).
How can I contact Thomas J. Diehl for a consultation?
You can contact Thomas J. Diehl 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 Thomas J. Diehl received?
Thomas J. Diehl's notable recognition includes: BV Distinguished.

Education

J.D.
University of Cincinnati College of Law
- 1988
B.S.
Miami University
- 1985

Languages

Awards

BV Distinguished

Bar Admissions

Ohio
Admitted: 1988
U.S. District Court, Southern District of Ohio
Admitted: 1990

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