How much does it cost to hire G. for a consumer case?

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

Does G. offer a free consultation?

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

How long do consumer cases in Pennsylvania typically take?

Simple consumer 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. G. gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

Can G. take my case if I'm outside Philadelphia?

G. is licensed in Pennsylvania. Matters governed by Pennsylvania law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — G. 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 G.?

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. G. will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

Is G. accepting new consumer clients right now?

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

Unclaimed · Is this you?

G. Mark Thompson, Consumer Attorney in Philadelphia, Pennsylvania

Over 37 years of legal practice · focused on Consumer, General, and Insurance · 5.0/5 rating from 9 verified client reviews

Shareholder, CEO, Executive Committee MemberatMarshall Dennehey

Philadelphia, PA

Practicing consumer in Philadelphia since 1989.

37+: Years practicing
5.0 ★: 9 client reviews
3: Bar admissions

Practices in

Consumer General Insurance Product Liability

Are you G. Mark Thompson?

This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.

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Quick answer

G. Mark Thompson is a shareholder, ceo, executive committee member based in Philadelphia, PA. The practice focuses on Consumer, General, and Insurance. G. has over 37 years of legal experience. Currently practicing at Marshall Dennehey. Rated 5.0 out of 5 from 9 client reviews.

Based in: Philadelphia, PA
Experience: over 37 years
Known for: Consumer · General · Insurance

Handles Consumer, General, and Insurance matters from Philadelphia, PA.
Over 37 years of practice as a licensed attorney.
Recognized with AV Preeminent.

Areas of practice

Practice areas handled by G. Mark Thompson

G. concentrates on consumer, general, insurance, and product liability. Each area below outlines the kind of case G. handles, typical outcomes to expect, and how the intake process starts.

Consumer cases in Philadelphia, Pennsylvania

G. takes consumer matters in Philadelphia, Pennsylvania. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before G. agrees to represent you.

General cases in Philadelphia, Pennsylvania

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

Insurance cases in Philadelphia, Pennsylvania

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

Product Liability cases in Philadelphia, Pennsylvania

G. takes product liability matters in Philadelphia, Pennsylvania. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before G. agrees to represent you.

Biography

About G. Mark Thompson — Over 37 years of Pennsylvania consumer experience

As President and CEO of Marshall Dennehey, Mark is responsible for the day-to-day management and business strategy of the firm which consists of 500 attorneys operating out of 19 offices throughout Pennsylvania, New York, New Jersey, Connecticut, Delaware, Ohio and Florida. He was elected to the position in December of 2017 after serving more than three years on the Executive Committee and a decade on the Board of Directors. He succeeded Tom Brophy who served in the role for 13 years.

Mark is joined by a management team comprised of two other senior executives, a Board of Directors, managing attorneys from every office, practice group supervisors, administrative directors and over 1,000 employees who combine their talents to develop and implement the strategies and achieve the objectives of the firm and its clients.

Prior to moving to the firm's Philadelphia headquarters in 2014, Mark also served as the regional managing attorney for its four Florida offices. A Florida native, it was there he built a reputation as a 'go to' attorney advising Fortune 500 clients in high profile, high exposure and often crisis situations. During his career he has handled matters that attracted international media attention, are the subject of books, a documentary film and in one instance a hearing before the US House of Representatives in Washington DC, at which Mark represented one of the corporations testifying.

Mark has more than 30 years of experience in the legal profession, is rated AV Preeminent by Martindale Hubble, was recognized in 2006, 2007, 2013 and 2014 as a Florida Super Lawyer and in 2012 as one of Florida's Legal Elite by Florida Trend magazine. He is admitted to practice before the Florida Supreme Court, the United States Court of Appeals for the Eleventh Circuit and the United States District Court for the Middle District of Florida. He has tried cases in county, circuit, and federal courts and argued before the District Courts of Appeal. In 2012 he also became licensed to practice in Pennsylvania.

Prior to attending law school, Mark spent two years working as an insurance adjuster. The experience continues to inform his understanding of the critical needs of claims professionals.

His civic activities include serving on the Board of Directors of Christian Legal Clinics of Philadelphia, a legal aid organization assisting the disadvantaged, whose north Philadelphia clinic was started and is staffed every month by Mark and his colleagues from Marshall Dennehey. Mark also has served on the Grants Committee of the Philadelphia Bar Foundation.

Honors & Awards

•AV Preeminent by Martindale-Hubbell
•Florida Super Lawyers (2006-2007, 2013-2014)
•Florida Trend Magazine's Florida Legal Elite, 2012
•Pennsylvania Super Lawyers (2018-2022)

Classes/Seminars Taught

•The Best Offense is a Good Defense: Managing Liability Claims in Today's Litigious Environment, Business Insurance Webinar, August 12, 2015
•The Claim Management Link: Interplay Between Risk Tolerance, Operational Structure, Litigation and Claim Outcomes, CLM Annual Conference, March 2015
•Florida Premises Liability - Investigation and Defense
•Florida Liquor Liability
•Spoliation of Evidence

Published Works

•'Experience Is the Best Teacher for Lateral Moves,' The Legal Intelligencer, Top Laterals Supplement, February 24, 2015
•'Protective Orders: Sword and Shield in the War of Discovery,' 12:3The American Journal of Trial Advocacy, Summer 1989

Media Commentary

•''If Only We Had Full Staffing': This Legal Sector is Spread Thin, but Negotiating Higher Rates,' American Lawyer and The Legal Intelligencer, August 15, 2024
•'For The Defense: Insurers' Cost-Cutting Mindset Strains Relationship With Defense Counsel,' cover story, Best's Review, May 2024
•'Pa.'s Second Hundred Firms Saw Modest Gains in 2021,' The Legal Intelligencer, May 24, 2022
•'Marshall Dennehey Cuts Ribbon on New Haven Office,' The Legal Intelligencer and Connecticut Law Tribune, February 28, 2022
•'The Way Back: How Law Firms Are Planning for Post-COVID Office Life,' The American Lawyer, September 2, 2021
•'How South Florida Law Firms Are Capitalizing on the Great Florida Migration,' Daily Business Review, June 29, 2021
•'Specialized and Out-of-State Law Firms Dominated Florida Lawyer Hiring in 2020,' Daily Business Review, June 24, 2021
•'Local Law Firms Are Split on Internal Vaccine Messaging,' The Legal Intelligencer, May 3, 2021
•'Back to the Office: From Now to Labor Day, Pa. Firm Leaders are Solidifying Their Plans,' The Legal Intelligencer, May 6, 2021
•'These Firms Steered Clear of Layoffs and Salary Cuts in 2020,' The American Lawyer,' March 19, 2021
•'Pandemic Be Damned, Year-End Collections Are Steady (So Far),' The Legal Intelligencer, December 22, 2020
•'Law Firm Leaders: Marshall Dennehey's G. Mark Thompson,' Law360, May 20, 2020

Thought Leadership

Media Commentary

G. Mark Thompson Quoted in The American Lawyer Article on Staffing in Defense Industry

August 15, 2024

Media Commentary

Marshall Dennehey President & CEO Featured on Cover of Best's Review

May 1, 2024

Marshall Dennehey President & CEO G. Mark Thompson was featured on the cover of the May 2024 issue of Best's Review and quoted in the article, 'For the Defense.'

News

Marshall Dennehey Earns “Best Places to Work” Honor for 14th Straight Year

May 19, 2026

Marshall Dennehey Named to BTI Associate Satisfaction A-Listers 2026

May 7, 2026

G.'s approach to consumer cases

The kind of cases G. takes

G. reviews new inquiries case-by-case for consumer, general, and insurance matters in Philadelphia and the surrounding Pennsylvania area.

Credentials

G. Mark Thompson's legal education and bar admissions

Cumberland School of Law, Samford University, Birmingham, Alabama
J.D. Dean · 1989
University of Florida
B.A. Presidential · 1984

Jurisdictions

G.'s state bar admissions

Pennsylvania Supreme
2012 · ACTIVE
U.S. District Court
1990 · ACTIVE
Florida
1989 · ACTIVE

G. studied at J.D. Dean in Cumberland School of Law, Samford University, Birmingham, Alabama and B.A. Presidential in University of Florida.

Law school and academic background

G. completed J.D. Dean in Cumberland School of Law, Samford University, Birmingham, Alabama and B.A. Presidential in University of Florida. Formal legal training is one signal of substantive knowledge — the day-to-day practice G. runs in Pennsylvania is where that training gets applied to real client questions.

Recognition

Awards, publications, and recognition of G. Mark Thompson

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

AV Preeminent

Legal awards and honors

AV Preeminent.

Affiliations

G.'s professional memberships and bar associations

Associations & Memberships Claims & Litigation Management Alliance (CLM) Defense Research Institute International Amusement & Leisure Defense Association International Association of Amusement Parks and Attractions (IAAPA) Orange County Bar Association
membership

Locations

G. Mark Thompson's office in Philadelphia

G.'s primary office is at 2000 Market Street, Suite 2300, Philadelphia, PA, 19103. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Marshall Dennehey

2000 Market Street, Suite 2300

Philadelphia, PA 19103

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Client feedback

Client reviews of G. Mark Thompson — 5.0/5 rating from 9 verified client reviews

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

5.0

9 client reviews

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

Read all reviews

Hiring guide

How to hire G. Mark Thompson — what to expect in your first consultation

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

Consultation formats and pricing

G. charges for the initial consult. That fee is credited toward representation if you retain G.'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; G. will tell you what matters and what doesn't.

Questions to ask a consumer attorney in Philadelphia, Pennsylvania

A short list to run through before you commit: How many consumer 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 G.

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

Hourly rates, contingency fees, and flat-fee options

Every consumer 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. G. confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

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

Frequently asked

Frequently asked questions about G. Mark Thompson

How much does it cost to hire G. for a consumer case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. G. walks through the likely range during the consult so there are no surprises.
Does G. offer a free consultation?
G. charges for the initial consult; that fee is credited toward representation if you retain G.'s office. Some consumer attorneys offer free consults — check G.'s current terms during booking.
How long do consumer cases in Pennsylvania typically take?
Simple consumer 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. G. gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can G. take my case if I'm outside Philadelphia?
G. is licensed in Pennsylvania. Matters governed by Pennsylvania law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — G. 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 G.?
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. G. will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is G. accepting new consumer clients right now?
G.'s intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Community Q&A

Real questions asked by Pennsylvania residents in the last few months, answered by consumer attorneys like G. Mark Thompson. Each link opens the full answer thread.

What to do if my credit report contains incorrect information in Illinois?
I recently checked my credit report and found a $2,500 debt listed that I don’t recognize. I live in Chicago, Illinois, and this is negatively impacting my credit score. I’ve tried
1 verified answer · Consumer · Illinois
What can I do if a company won't honor its warranty in California?
I bought a new refrigerator from a store in Los Angeles, California, which came with a two-year warranty. When it broke down after just six months, the company refused to fix it, c
1 verified answer · Consumer · California
What should I do if my bank won't remove a fraudulent charge in Oregon?
I live in Portland, Oregon, and just noticed a $200 charge on my bank statement that I didn’t make. I reported it, but the bank refuses to remove the charge, claiming it appears le
1 verified answer · Consumer · Oregon
Can a travel agency refuse to give me a refund in Washington?
I booked a vacation package through a travel agency in Seattle, Washington, but had to cancel due to a family emergency. They are refusing to provide me a refund, citing their poli
1 verified answer · Consumer · Washington
Can I be charged extra fees for paying my medical bill early in Florida?
I received a medical bill for $5,000 from a clinic in Miami, Florida, and I wanted to pay it off early. However, they informed me that there would be a 5% processing fee if I paid
1 verified answer · Consumer · Florida
What recourse do I have for receiving defective merchandise in Virginia?
I ordered a laptop online from a retailer in Richmond, Virginia, and when it arrived, it was defective and didn’t turn on. I attempted to return it, but they are refusing to accept
1 verified answer · Consumer · Virginia

Areas served

Consumer attorneys serving Philadelphia, Pittsburgh and Harrisburg in Pennsylvania

G. handles consumer matters throughout Pennsylvania. Each city below is a direct link into the search page for verified consumer attorneys in that community.

More counsel

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