How much does it cost to hire Gregory for a criminal defense case?

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

Does Gregory offer a free consultation?

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

How long do criminal defense cases in District of Columbia typically take?

Simple criminal defense 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. Gregory gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

Can Gregory take my case if I'm outside Washington?

Gregory 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 — Gregory 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 Gregory?

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

Is Gregory accepting new criminal defense clients right now?

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

Unclaimed · Is this you?

Gregory G. "Greg" Marshall, Criminal Defense Attorney in Washington, District of Columbia

focused on Criminal Defense and White Collar

Washington, DC

Trusted criminal defense attorney serving Washington.

Practices in

Criminal Defense White Collar

Are you Gregory G. "Greg" Marshall?

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Quick answer

Gregory G. "Greg" Marshall is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Criminal Defense and White Collar.

Based in: Washington, DISTRICT OF COLUMBIA
Experience: attorney
Known for: Criminal Defense · White Collar

Handles Criminal Defense and White Collar matters from Washington, DISTRICT OF COLUMBIA.
Recognized with Best Lawyers in America — Criminal Defense: White-Collar (2026).

Areas of practice

Gregory's practice areas in Washington

Gregory concentrates on criminal defense and white collar. Each area below outlines the kind of case Gregory handles, typical outcomes to expect, and how the intake process starts.

Criminal Defense cases in Washington, District of Columbia

Gregory takes criminal defense 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 Gregory agrees to represent you.

White Collar cases in Washington, District of Columbia

Gregory takes white collar 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 Gregory agrees to represent you.

Biography

Gregory G. "Greg" Marshall, criminal defense attorney serving Washington

Gregory G. "Greg" Marshall is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Criminal Defense and White Collar. Gregory works from Washington, District of Columbia and takes on criminal defense matters across the region.

A former federal prosecutor with extensive trial and appellate experience, Greg Marshall represents companies and individuals defending government enforcement, white-collar criminal, and civil litigation matters. Greg also conducts internal investigations and advises clients on compliance issues. He has assisted clients in the financial services, healthcare, government contracting, technology, export, and education sectors.

Greg has defended investigations and cases involving the False Claims Act, the Sherman Act, the Foreign Corrupt Practices Act, the export control laws, and allegations of healthcare, corporate, securities, and tax fraud. He regularly handles matters involving the U.S. Department of Justice, federal agency Inspectors General, the U.S. Securities and Exchange Commission, state Attorneys General, and other federal and state enforcement agencies.

Greg joined the firm after spending more than 12 years as an Assistant U.S. Attorney (AUSA) in the U.S. Attorney’s Office for the District of Columbia, where he served as Deputy Chief of the Criminal Division from 2009 to 2010. In that position, Greg supervised approximately 75 senior prosecutors handling all types of federal investigations and cases, including healthcare fraud, corporate and securities fraud, export enforcement, tax fraud, money laundering, public corruption, espionage, and international and domestic terrorism. He also served in the D.C. U.S. Attorney’s Office as Acting Chief of the Asset Forfeiture Unit, as Senior Litigation Counsel, and as a line AUSA in the Fraud and Public Corruption Section, the Organized Crime and Narcotics Trafficking Section, and the Sex Offense and Domestic Violence Section. During his tenure as a prosecutor, Greg directed scores of grand jury investigations, tried approximately 45 trials, and argued eight direct appeals. He earned nine U.S. Department of Justice special achievement awards for superior performance.

Greg has served on the adjunct faculty at the University of Virginia School of Law, where he taught Trial Advocacy. Prior to becoming a federal prosecutor, he clerked for Chief Judge Joseph W. Hatchett of the U.S. Court of Appeals for the Eleventh Circuit, and worked at an international law firm in New York. Before attending law school, Greg taught for two years at a public junior high school in Manhattan.

Gregory's approach to criminal defense cases

The kind of cases Gregory takes

Gregory reviews new inquiries case-by-case for criminal defense and white collar matters in Washington and the surrounding District of Columbia area.

Credentials

Credentials — where Gregory studied and practices

Columbia University
— · 1994
Cornell University
J.D. · 1993
Bucknell University
B.A. · 1988

Gregory studied at — in Columbia University, J.D. in Cornell University, and B.A. in Bucknell University.

Law school and academic background

Gregory completed — in Columbia University, J.D. in Cornell University, and B.A. in Bucknell University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Gregory runs in District of Columbia is where that training gets applied to real client questions.

Recognition

Gregory's legal honors and published work

Gregory has received 4 formal recognitions from bar associations, industry bodies, and peer-review services.

Best Lawyers in America — Criminal Defense: White-Collar
2026
Best Lawyers in America — Additional Areas of Practice:
2026
Best Lawyers in America — Government Contracts
2026
Best Lawyers in America — Qui Tam Law
2026

Legal awards and honors

Best Lawyers in America — Criminal Defense: White-Collar (2026). Best Lawyers in America — Additional Areas of Practice: (2026). Best Lawyers in America — Government Contracts (2026). Best Lawyers in America — Qui Tam Law (2026).

Locations

Gregory G. "Greg" Marshall's office in Washington

Gregory's primary office is at 1900 K Street, NW, Washington, District of Columbia, 20006. In-person meetings are by appointment; a phone intake usually comes first.

Main office

1900 K Street, NW

Washington, District of Columbia 20006

Open in Google Maps

Client feedback

Client reviews of Gregory G. "Greg" Marshall

Gregory has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.

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Hiring guide

How to hire Gregory G. "Greg" Marshall — what to expect in your first consultation

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

Consultation formats and pricing

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

Questions to ask a criminal defense attorney in Washington, District of Columbia

A short list to run through before you commit: How many criminal defense 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 Gregory

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

Hourly rates, contingency fees, and flat-fee options

Every criminal defense 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. Gregory confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

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

Frequently asked

Frequently asked questions about Gregory G. "Greg" Marshall

How much does it cost to hire Gregory for a criminal defense case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Gregory walks through the likely range during the consult so there are no surprises.
Does Gregory offer a free consultation?
Gregory charges for the initial consult; that fee is credited toward representation if you retain Gregory's office. Some criminal defense attorneys offer free consults — check Gregory's current terms during booking.
How long do criminal defense cases in District of Columbia typically take?
Simple criminal defense 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. Gregory gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Gregory take my case if I'm outside Washington?
Gregory 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 — Gregory 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 Gregory?
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. Gregory will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Gregory accepting new criminal defense clients right now?
Gregory'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 District of Columbia residents in the last few months, answered by criminal defense attorneys like Gregory G. "Greg" Marshall. Each link opens the full answer thread.

How can I appeal a conviction for a DUI in Michigan?
I was convicted of a DUI in Detroit, MI, last year and am unhappy with the outcome. I feel like my attorney didn’t represent me well, and I’d like to know if there’s a way to appea
1 verified answer · Criminal Defense · Michigan
What can I do if I’m wrongfully accused of robbery in Pennsylvania?
I was wrongly accused of robbery in Philadelphia, PA, after an incident at a store where I was simply shopping. The security footage proves my innocence, but the police arrested me
1 verified answer · Criminal Defense · Pennsylvania
What should I know about plea deals for misdemeanor charges in Hawaii?
I received a misdemeanor charge for disorderly conduct in Honolulu, HI, and the court suggested a plea deal. I’m unsure if I should accept it or fight the charge. What should I con
1 verified answer · Criminal Defense · Hawaii
What are the penalties for a DUI in Colorado after a second offense?
I received my second DUI in Denver, CO, last month, and I'm worried about facing harsher penalties this time around. My first offense resulted in a fine and community service, but
1 verified answer · Criminal Defense · Colorado
What are the legal consequences of underage drinking in Massachusetts?
I’m a college student in Boston, MA, and I was caught with alcohol at a party. I’m concerned about the legal repercussions this may have on my record and my future job opportunitie
1 verified answer · Criminal Defense · Massachusetts
How do I find a good criminal defense attorney in Arizona?
I’m facing drug possession charges in Phoenix, AZ, and I have no idea how to choose the right defense attorney. I need someone who understands the laws here and has a track record
1 verified answer · Criminal Defense · Arizona

Areas served

Criminal Defense attorneys serving Washington and Belize City in District of Columbia

Gregory handles criminal defense matters throughout District of Columbia. Each city below is a direct link into the search page for verified criminal defense attorneys in that community.

More counsel

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