Atty. Thomas A. Grennan

Atty. Thomas A. Grennan

EDUCATION Creighton University (J.D., 1978) Creighton University (B.A., Cum Laude, 1975) PRACTICE EMPHASIS Civil Litigation Insurance Litigation Business Litigation Fire & Explosion Litigation Professional Liability Personal Injury Litigation HONORS & AWARDS Fellow, American College of Trial Lawyers The Best Lawyers in America Great Plains Super Lawyers Fellow, American Bar Foundation Alpha Sigma Nu, National Jesuit Honor Society Spirit of Creighton Award

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Profile Summary

About Thomas A. Grennan at a glance

Thomas A. Grennan is an attorney based in Omaha, Nebraska, practforg at Gross Welch Marks Clare PC LLO. Educated at Creighton University (J.D., 1978) and Creighton University (—, 1978). Recognitions include Best Lawyers in America — Insurance Law (2026), Best Lawyers in America — Personal Injury Litigation - Defendants (2026), and Best Lawyers in America — Personal Injury Litigation - Plaintiffs (2026). Serands clients in Omaha, NE and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

EDUCATION

    PRACTICE EMPHASIS

    • Civil Litigation
    • Insurance Litigation
    • Business Litigation
    • Fire & Explosion Litigation
    • Professional Liability
    • Personal Injury Litigation

      HONORS & AWARDS

      • Fellow, American College of Trial Lawyers
      • The Best Lawyers in America
      • Great Plains Super Lawyers
      • Fellow, American Bar Foundation
      • Alpha Sigma Nu, National Jesuit Honor Society
      • Spirit of Creighton Award

Jurisdictional Context

Why local counsel matters in Nebraska

Practforg law in Nebraska. Legal matters in Nebraska are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand law. Cases originating in Omaha are typically filed in the local municipal court or the appropriate Nebraska state district court, depending on subject matter and amount in controversy. An attorney licensed in Nebraska brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantiand law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Nebraska courts without local counsel or pro hac vice admission.

Looking for additional Nebraska attorneys? Browse all attorneys in Omaha or all attorneys in Nebraska.

Frequently Asked

Common questions about Thomas A. Grennan

Where is Thomas A. Grennan's law office located?
Thomas A. Grennan's law practice is located in Omaha, Nebraska. The firm is Gross Welch Marks Clare PC LLO. You can contact the office directly through this profile page.
Where did Thomas A. Grennan go to law school?
Thomas A. Grennan earned their education at (J.D., 1978); (—, 1978).
How can I contact Thomas A. Grennan for a consultation?
You can contact Thomas A. Grennan 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 A. Grennan receiandd?
Thomas A. Grennan's notable recognition includes: Best Lawyers in America — Insurance Law; Best Lawyers in America — Personal Injury Litigation - Defendants; Best Lawyers in America — Personal Injury Litigation - Plaintiffs; Best Lawyers in America — Additional Areas of Practice:; Best Lawyers in America — Personal Injury Litigation.

Education

J.D.
Creighton University
- 1978
Creighton University
- 1978

Awards

Best Lawyers in America — Insurance Law
- 2026
Best Lawyers in America — Personal Injury Litigation - Defendants
- 2026
Best Lawyers in America — Personal Injury Litigation - Plaintiffs
- 2026
Best Lawyers in America — Additional Areas of Practice:
- 2026
Best Lawyers in America — Personal Injury Litigation
- 2026
Lawyer of the Year — Insurance Law (Omaha)
- 2022
Lawyer of the Year — Personal Injury Litigation - Plaintiffs (Omaha)
- 2014
Lawyer of the Year — Insurance Law (Omaha)
- 2011

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