Atty. Thomas Robert O'Donnell

Atty. Thomas Robert O'Donnell

Thomas Robert O'Donnell is a lawyer practicing environmental, clean air act, clean water act and 4 other areas of law. Thomas received a B.A. degree from John Carroll University in 1991, and has been licensed for 30 years.

Cleveland Cleveland 30 yrs experience 30 year
Call (347) 704-7086 Book Appointment

Profile Summary

About Thomas Robert O'Donnell at a glance

Thomas Robert O'Donnell is a Senior Counsel based in Cleveland, Ohio, practicing at Calfee, Halter & Griswold LLP. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on litigation, environmental, and health care. Admitted to practice in Ohio U.S. District Court, Northern District of Ohio U.S. District Court, District of Wisconsin (1996). Educated at Cleveland-Marshall College of Law (J.D., 1996) and John Carroll University (B.A., 1991). Serands clients in Cleveland, OH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Thomas Robert O'Donnell is a lawyer practicing environmental, clean air act, clean water act and 4 other areas of law
  • Thomas received a B.A. degree from John Carroll University in 1991, and has been licensed for 30 years
  • Thomas practices at Calfee, Halter & Griswold LLP in Cleveland, OH

Practice Areas Explained

Thomas Robert O'Donnell's Areas of Practice

Each practice area below reflects the types of cases Thomas Robert O'Donnell handles, with a brief overview of what that area of law covers.

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Thomas Robert O'Donnell is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Ohio →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Thomas Robert O'Donnell is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Ohio →

Health Care Law

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

Thomas Robert O'Donnell is one of 66,735 health care attorneys indexed nationally. Browse health care 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 Cleveland 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 Cleveland or all attorneys in Ohio.

Frequently Asked

Common questions about Thomas Robert O'Donnell

Where is Thomas Robert O'Donnell's law office located?
Thomas Robert O'Donnell's law practice is located in Cleveland, Ohio. The firm is Calfee, Halter & Griswold LLP. You can contact the office directly through this profile page.
What practice areas does Thomas Robert O'Donnell handle?
Thomas Robert O'Donnell focuses on litigation, environmental, health care. Each practice area listed reflects experience handling cases of that type in Ohio.
How long has Thomas Robert O'Donnell practiced law?
Thomas Robert O'Donnell has 30+ years of legal experience and has been licensed since 1996.
Where did Thomas Robert O'Donnell go to law school?
Thomas Robert O'Donnell earned their education at (J.D., 1996); (B.A., 1991).
How can I contact Thomas Robert O'Donnell for a consultation?
You can contact Thomas Robert O'Donnell 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.
Cleveland-Marshall College of Law
- 1996
B.A.
John Carroll University
- 1991

Bar Admissions

Ohio U.S. District Court, Northern District of Ohio U.S. District Court, District of Wisconsin
Admitted: 1996

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