Thomas Grennan

Thomas Grennan, General Attorney in Omaha, Nebraska

Over 48 years of legal practice · focused on General, Insurance, and Litigation · 5.0/5 rating from 2 verified client reviews

ShareholderatGross Welch Marks Clare, PC, LLO

Omaha, NE

Practicing general in Omaha since 1978.

48+
Years practicing
5.0 ★
2 client reviews
5
Bar admissions

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Quick answer

Thomas Grennan is a shareholder based in Omaha, NE. The practice focuses on General, Insurance, and Litigation. Thomas has over 48 years of legal experience. Currently practicing at Gross Welch Marks Clare, PC, LLO. Rated 5.0 out of 5 from 2 client reviews.

Based in
Omaha, NE
Experience
over 48 years
Known for
General · Insurance · Litigation
  • Handles General, Insurance, and Litigation matters from Omaha, NE.
  • Over 48 years of practice as a licensed attorney.
  • Recognized with AV Preeminent.

About Thomas Grennan: Thomas Grennan is a shareholder based in Omaha, NE. The practice focuses on General, Insurance, and Litigation. Thomas has over 48 years of legal experience. Currently practicing at Gross Welch Marks Clare, PC, LLO. Rated 5.0 out of 5 from 2 client reviews.

Areas of practice

Practice areas handled by Thomas Grennan

Thomas concentrates on general, insurance, litigation, personal injury, and business. Each area below outlines the kind of case Thomas handles, typical outcomes to expect, and how the intake process starts.

General cases in Omaha, Nebraska

Thomas takes general matters in Omaha, Nebraska. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Thomas agrees to represent you.

Insurance cases in Omaha, Nebraska

Thomas takes insurance matters in Omaha, Nebraska. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Thomas agrees to represent you.

Litigation cases in Omaha, Nebraska

Thomas takes litigation matters in Omaha, Nebraska. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Thomas agrees to represent you.

Personal Injury cases in Omaha, Nebraska

Thomas takes personal injury matters in Omaha, Nebraska. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Thomas agrees to represent you.

Business cases in Omaha, Nebraska

Thomas takes business matters in Omaha, Nebraska. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Thomas agrees to represent you.

Biography

About Thomas Grennan — Over 48 years of Nebraska general experience

Thomas Grennan is a shareholder based in Omaha, NE. The practice focuses on General, Insurance, and Litigation. Thomas has over 48 years of legal experience. Currently practicing at Gross Welch Marks Clare, PC, LLO. Rated 5.0 out of 5 from 2 client reviews.

Tom Grennan is one of the most experienced and respected trial lawyers in the State of Nebraska. He has tried hundreds of lawsuits and successfully mediated many other cases. At the beginning of a case, he thoroughly reviews the pertinent facts and, correspondingly, analyzes the legal principles that apply. Tom Grennan recognizes that each case is unique; he seeks to use the most effective strategy to achieve the best outcome for the client.

In 2005, Tom Grennan was named as a Fellow in the American College of Trial Lawyers. “Fellowship is extended only by invitation to those experienced trial lawyers…who have mastered the art of advocacy and whose professional careers have been marked by the highest standards of ethical conduct, professionalism, civility and collegiality. Membership can never be more than 1% of the total lawyer population of any state.”

In addition, Tom Grennan has been consistently recognized as one of The Best Lawyers in America (Insurance Law and Personal Injury Litigation) and as a Top-Rated Civil Litigation Attorney by Super Lawyers.

Working with Thomas on a general matter

Tom Grennan is one of the most experienced and respected trial lawyers in the State of Nebraska. He has tried hundreds of lawsuits and successfully mediated many other cases. At the beginning of a case, he thoroughly reviews the pertinent facts and, correspondingly, analyzes the legal principles that apply. Tom Grennan recognizes that each case is unique; he seeks to use the most effective…

Clients Thomas works with

Thomas reviews new inquiries case-by-case for general, insurance, and litigation matters in Omaha and the surrounding Nebraska area.

Credentials

Thomas Grennan's legal education and bar admissions

  • Creighton University School of Law

    J.D. · 1978

  • Creighton University

    B.A. · 1975

Jurisdictions

Thomas's state bar admissions

  • Iowa U.S. District C

    2021 · ACTIVE

  • U.S. Supreme Court

    1990 · ACTIVE

  • U.S. Court of Appeal

    1979 · ACTIVE

  • Nebraska

    1978 · ACTIVE

  • U.S. District Court,

    1978 · ACTIVE

Thomas studied at J.D. in Creighton University School of Law and B.A. in Creighton University.

Law school and academic background

Thomas completed J.D. in Creighton University School of Law and B.A. in Creighton University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Thomas runs in Nebraska is where that training gets applied to real client questions.

Recognition

Awards, publications, and recognition of Thomas Grennan

Thomas has received 1 formal recognition from bar associations, industry bodies, and peer-review services.

  • AV Preeminent

Legal awards and honors

AV Preeminent.

Affiliations

Thomas's professional memberships and bar associations

  • Omaha Bar Association Nebraska Defense Counsel Association Defense Research Institute International Association of Defense Counsel Nebraska State Bar Association The Royal British Legion Scotland

    membership

Locations

Thomas Grennan's office in Omaha

Thomas's primary office is at 1500 Omaha Tower, 2120 S. 72nd Street, Omaha, NE, 68124. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Gross Welch Marks Clare, PC, LLO

1500 Omaha Tower, 2120 S. 72nd Street

Omaha, NE 68124

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Client feedback

Client reviews of Thomas Grennan — 5.0/5 rating from 2 verified client reviews

Every review below is from a verified client of Thomas. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing general attorneys in Omaha.

5.0

2 client reviews

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Thomas Grennan claims this profile.

Read all reviews

Hiring guide

How to hire Thomas Grennan — what to expect in your first consultation

Working with a new general attorney should feel structured. Here's how the first two conversations with Thomas usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Thomas charges for the initial consult. That fee is credited toward representation if you retain Thomas's office.

What to bring to your first meeting

Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Thomas will tell you what matters and what doesn't.

Questions to ask a general attorney in Omaha, Nebraska

A short list to run through before you commit: How many general matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?

Fees & payment

Fees, payment methods, and consultation options for Thomas

Thomas discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in general practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every general matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Thomas confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Thomas's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many general practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Thomas Grennan

  • How much does it cost to hire Thomas for a general case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Thomas walks through the likely range during the consult so there are no surprises.

  • Does Thomas offer a free consultation?

    Thomas charges for the initial consult; that fee is credited toward representation if you retain Thomas's office. Some general attorneys offer free consults — check Thomas's current terms during booking.

  • How long do general cases in Nebraska typically take?

    Simple general matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Thomas gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Thomas take my case if I'm outside Omaha?

    Thomas is licensed in Nebraska. Matters governed by Nebraska law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Thomas will tell you if the case is a fit or refer you to someone closer to your court.

  • What should I bring to my first meeting with Thomas?

    Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Thomas will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Thomas accepting new general clients right now?

    Thomas's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

General attorneys serving Omaha, Lincoln and Kearney in Nebraska

Thomas handles general matters throughout Nebraska. Each city below is a direct link into the search page for verified general attorneys in that community.

More counsel

If Thomas's intake is full or the fit isn't right, these general attorneys in Omaha handle similar matters. Every profile below is verified and open to consultations.