WJ

William Justin Barrow, General Attorney in Washington, District of Columbia

Over 18 years of legal practice · focused on General, Government, and International

AssociateatMayer Brown Llp

Washington, DC

Practicing general in Washington since 2008.

18+
Years practicing
4
Bar admissions

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Quick answer

William Justin Barrow is an associate based in Washington, DC. The practice focuses on General, Government, and International. William has over 18 years of legal experience. Currently practicing at Mayer Brown Llp.

Based in
Washington, DC
Experience
over 18 years
Known for
General · Government · International
  • Handles General, Government, and International matters from Washington, DC.
  • Over 18 years of practice as a licensed attorney.

About William Justin Barrow: William Justin Barrow is an associate based in Washington, DC. The practice focuses on General, Government, and International. William has over 18 years of legal experience. Currently practicing at Mayer Brown Llp.

Areas of practice

Legal matters William takes on

William concentrates on general, government, international, ip, and patent. Each area below outlines the kind of case William handles, typical outcomes to expect, and how the intake process starts.

General cases in Washington, District of Columbia

William 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 William agrees to represent you.

Government cases in Washington, District of Columbia

William takes government 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 William agrees to represent you.

International cases in Washington, District of Columbia

William takes international 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 William agrees to represent you.

IP cases in Washington, District of Columbia

William takes ip 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 William agrees to represent you.

Patent cases in Washington, District of Columbia

William takes patent 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 William agrees to represent you.

Biography

Meet William Justin Barrow — general lawyer in Washington

William Justin Barrow is an associate based in Washington, DC. The practice focuses on General, Government, and International. William has over 18 years of legal experience. Currently practicing at Mayer Brown Llp.

Mr. William Justin Barrow is a lawyer practicing antitrust / trade law, international law, administrative law and 4 other areas of law. William received a B.S. degree from University of Pennsylvania in 2004, and has been licensed for 18 years. William practices at Mayer Brown LLP in Washington, DC.

Working with William on a general matter

Mr. William Justin Barrow is a lawyer practicing antitrust / trade law, international law, administrative law and 4 other areas of law. William received a B.S. degree from University of Pennsylvania in 2004, and has been licensed for 18 years. William practices at Mayer Brown LLP in Washington, DC.

Who William represents

William reviews new inquiries case-by-case for general, government, and international matters in Washington and the surrounding District of Columbia area.

Credentials

Education, bar admissions, and languages

  • American University, Washington College of Law J.D. 2008 Senior Staff American University, Washington College of Law J.D. Administrative Law Review

  • University of Pennsylvania

    B.S. Electrical · 2004

Jurisdictions

William's state bar admissions

  • U.S. District Court

    2013 · ACTIVE

  • U.S. District Court

    2011 · ACTIVE

  • District of Columbia

    2009 · ACTIVE

  • Maryland

    2008 · ACTIVE

William studied at — in American University, Washington College of Law J.D. 2008 Senior Staff American University, Washington College of Law J.D. Administrative Law Review and B.S. Electrical in University of Pennsylvania.

Law school and academic background

William completed — in American University, Washington College of Law J.D. 2008 Senior Staff American University, Washington College of Law J.D. Administrative Law Review and B.S. Electrical in University of Pennsylvania. Formal legal training is one signal of substantive knowledge — the day-to-day practice William runs in District of Columbia is where that training gets applied to real client questions.

Affiliations

William's professional memberships and bar associations

  • Activities •American Intellectual Property Law Association •Federal Circuit Bar Association •ITC Trial Lawyers Association

    membership

Locations

William Justin Barrow's office in Washington

William's primary office is at 1999 K Street, N.W., Washington, DC, 20006-1101. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Mayer Brown Llp

1999 K Street, N.W.

Washington, DC 20006-1101

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Client feedback

Client reviews of William Justin Barrow

William 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 William Justin Barrow — what to expect in your first consultation

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

Consultation formats and pricing

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

Questions to ask a general attorney in Washington, District of Columbia

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 William

William 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. William confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

William'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 William Justin Barrow

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

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

  • Does William offer a free consultation?

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

  • How long do general cases in District of Columbia 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. William gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can William take my case if I'm outside Washington?

    William 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 — William 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 William?

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

  • Is William accepting new general clients right now?

    William'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 Washington and Belize City in District of Columbia

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