
Mark Thompson, Animal Law Attorney in Washington, District of Columbia
focused on Animal Law, Consumer, and Environmental
Partner
Washington, DC
Trusted animal law attorney serving Washington.
Are you Mark Thompson?
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Quick answer
Mark Thompson is a partner based in Washington, DC. The practice focuses on Animal Law, Consumer, and Environmental.
- Based in
- Washington, DC
- Experience
- attorney
- Known for
- Animal Law · Consumer · Environmental
- Handles Animal Law, Consumer, and Environmental matters from Washington, DC.
About Mark Thompson: Mark Thompson is a partner based in Washington, DC. The practice focuses on Animal Law, Consumer, and Environmental.
Areas of practice
Legal matters Mark takes on
Mark concentrates on animal law, consumer, environmental, general, and health care. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.
Animal Law
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Consumer
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Environmental
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General
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Health Care
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Animal Law cases in Washington, District of Columbia
Mark takes animal law matters in Washington, District of Columbia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Consumer cases in Washington, District of Columbia
Mark takes consumer matters in Washington, District of Columbia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Environmental cases in Washington, District of Columbia
Mark takes environmental matters in Washington, District of Columbia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
General cases in Washington, District of Columbia
Mark takes general matters in Washington, District of Columbia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Health Care cases in Washington, District of Columbia
Mark takes health care matters in Washington, District of Columbia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Biography
Meet Mark Thompson — animal law lawyer in Washington
Mark Thompson is a partner based in Washington, DC. The practice focuses on Animal Law, Consumer, and Environmental.
Mark Thompson counsels companies and trade associations on global compliance requirements applicable to finished foods, food additives, food packaging materials, cosmetics, industrial chemicals, and associated labeling in Asia, the United States (U.S.), and the European Union (EU). He also advises clients on the regulation of drugs and genetically modified organisms (GMOs) in Asia.
Mark began his career at Keller and Heckman in the Washington, DC office. From 2009 through 2016, he was based in the firm’s Shanghai Representative office, where he gained extensive experience and perspective on the regulatory scheme in China and throughout Asia. During that time, he assisted foreign and domestic companies in evaluating and securing new clearances for products in China, Japan, Korea, Taiwan, Thailand, and other Asian countries.
Mark is the co-host of Food & Chemicals Unpacked, Keller and Heckman’s podcast regarding the legal and scientific issues surrounding the food, chemical, packaging, and related consumer product industries. In addition, he is a contributing author to packaginglaw.com, which provides news and analysis of worldwide packaging regulations, and is frequently invited to speak at international regulatory conferences.
While in law school, Mark was a contract law teaching assistant and an Associate Editor for the Commlaw Conspectus. These experiences enhance his practice by providing a deeper insight into contract law and policy matters, respectively.
Insights & In the News
USA on Display: How 'Made in America' Claims Are Regulated
05.29.2026
Podcast
Food & Chemicals Unpacked: Green Claims Games: A Challenge to California's SB 343
04.27.2026
Podcast
Food & Chemicals Unpacked: Back in the PPWR: Revisiting the EU Framework for Packaging Su...
04.01.2026
Podcast
Mark Thompson Quoted in Food Processing Article on Ultraprocessed Foods
In The News
05.11.2026
How Mark handles animal law matters
Mark Thompson counsels companies and trade associations on global compliance requirements applicable to finished foods, food additives, food packaging materials, cosmetics, industrial chemicals, and associated labeling in Asia, the United States (U.S.), and the European Union (EU). He also advises clients on the regulation of drugs and genetically modified organisms (GMOs) in Asia. Mark began his…
The kind of cases Mark takes
Mark reviews new inquiries case-by-case for animal law, consumer, and environmental matters in Washington and the surrounding District of Columbia area.
Credentials
Education, bar admissions, and languages
Catholic University of America
J.D. · 2008
University of Georgia
B.A. · 2004
Mark studied at J.D. in Catholic University of America and B.A. in University of Georgia.
Law school and academic background
Mark completed J.D. in Catholic University of America and B.A. in University of Georgia. Formal legal training is one signal of substantive knowledge — the day-to-day practice Mark runs in District of Columbia is where that training gets applied to real client questions.
Affiliations
Mark's professional memberships and bar associations
Memberships •District of Columbia Bar Association •Georgia State Bar Association
membership
Locations
Mark Thompson's office in Washington
Mark's primary office is at 1001 G Street NW, Suite 500 West, Washington, DC, 20001. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Mark Thompson
Mark has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.
No reviews yet
Only verified clients who have consulted with Mark Thompson can leave a review.
Schedule your consultationHiring guide
How to hire Mark Thompson — what to expect in your first consultation
Working with a new animal law attorney should feel structured. Here's how the first two conversations with Mark usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Mark charges for the initial consult. That fee is credited toward representation if you retain Mark'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; Mark will tell you what matters and what doesn't.
Questions to ask a animal law attorney in Washington, District of Columbia
A short list to run through before you commit: How many animal law 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 Mark
Mark discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in animal law practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every animal law 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. Mark confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Mark's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many animal law practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Mark Thompson
How much does it cost to hire Mark for a animal law case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Mark walks through the likely range during the consult so there are no surprises.
Does Mark offer a free consultation?
Mark charges for the initial consult; that fee is credited toward representation if you retain Mark's office. Some animal law attorneys offer free consults — check Mark's current terms during booking.
How long do animal law cases in District of Columbia typically take?
Simple animal law 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. Mark gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Mark take my case if I'm outside Washington?
Mark is licensed in District of Columbia. Matters governed by District of Columbia law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Mark 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 Mark?
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. Mark will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Mark accepting new animal law clients right now?
Mark's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Animal Law attorneys serving Washington and Belize City in District of Columbia
Mark handles animal law matters throughout District of Columbia. Each city below is a direct link into the search page for verified animal law attorneys in that community.
More counsel
Other top-rated animal law attorneys in District of Columbia
If Mark's intake is full or the fit isn't right, these animal law attorneys in Washington handle similar matters. Every profile below is verified and open to consultations.

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