Marc J. Zwillinger, Internet Attorney in Washington, District of Columbia
Over 32 years of legal practice · focused on Internet, IP, and Litigation
Founding PartneratZwillgen Pllc
Washington, DC
Practicing internet in Washington since 1994.
- 32+
- Years practicing
- 2
- Bar admissions
Practices in
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Quick answer
Marc J. Zwillinger is a founding partner based in Washington, DC. The practice focuses on Internet, IP, and Litigation. Marc has over 32 years of legal experience. Currently practicing at Zwillgen Pllc.
- Based in
- Washington, DC
- Experience
- over 32 years
- Known for
- Internet · IP · Litigation
- Handles Internet, IP, and Litigation matters from Washington, DC.
- Over 32 years of practice as a licensed attorney.
About Marc J. Zwillinger: Marc J. Zwillinger is a founding partner based in Washington, DC. The practice focuses on Internet, IP, and Litigation. Marc has over 32 years of legal experience. Currently practicing at Zwillgen Pllc.
Areas of practice
Marc's practice areas in Washington
Marc concentrates on internet, ip, litigation, and securities. Each area below outlines the kind of case Marc handles, typical outcomes to expect, and how the intake process starts.
Internet
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IP
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Litigation
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Securities
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Internet cases in Washington, District of Columbia
Marc takes internet 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 Marc agrees to represent you.
IP cases in Washington, District of Columbia
Marc 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 Marc agrees to represent you.
Litigation cases in Washington, District of Columbia
Marc takes litigation 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 Marc agrees to represent you.
Securities cases in Washington, District of Columbia
Marc takes securities 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 Marc agrees to represent you.
Biography
Marc J. Zwillinger, internet attorney serving Washington
Marc J. Zwillinger is a founding partner based in Washington, DC. The practice focuses on Internet, IP, and Litigation. Marc has over 32 years of legal experience. Currently practicing at Zwillgen Pllc. Marc works from Washington, District of Columbia and takes on internet matters across the region.
Marc J. Zwillinger is a lawyer practicing information security, internet, litigation and 1 other area of law. Marc received a B.A. degree from Tufts University in 1991, and has been licensed for 32 years. Marc practices at ZwillGen PLLC in Washington, DC.
How Marc handles internet matters
Marc J. Zwillinger is a lawyer practicing information security, internet, litigation and 1 other area of law. Marc received a B.A. degree from Tufts University in 1991, and has been licensed for 32 years. Marc practices at ZwillGen PLLC in Washington, DC.
Who Marc represents
Marc reviews new inquiries case-by-case for internet, ip, and litigation matters in Washington and the surrounding District of Columbia area.
Credentials
Credentials — where Marc studied and practices
Harvard University
J.D. · 1994
Tufts University
B.A. · 1991
Jurisdictions
Marc's state bar admissions
District of Columbia
1996 · ACTIVE
Illinois
1994 · ACTIVE
Marc studied at J.D. in Harvard University and B.A. in Tufts University.
Law school and academic background
Marc completed J.D. in Harvard University and B.A. in Tufts University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Marc runs in District of Columbia is where that training gets applied to real client questions.
Affiliations
Marc's professional memberships and bar associations
American Bar Association
Co-Chair, Subcommittee on Computer and High-Tech Crime, White Collar Crime Committee, 2000-2002 · membership
Locations
Marc J. Zwillinger's office in Washington
Marc's primary office is at 1705 N. Street, N.W., Washington, DC, 20036. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Marc J. Zwillinger
Marc has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.
No reviews yet
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Schedule your consultationHiring guide
How to hire Marc J. Zwillinger — what to expect in your first consultation
Working with a new internet attorney should feel structured. Here's how the first two conversations with Marc usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Marc charges for the initial consult. That fee is credited toward representation if you retain Marc'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; Marc will tell you what matters and what doesn't.
Questions to ask a internet attorney in Washington, District of Columbia
A short list to run through before you commit: How many internet 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 Marc
Marc discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in internet practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every internet 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. Marc confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Marc's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many internet practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Marc J. Zwillinger
How much does it cost to hire Marc for a internet case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Marc walks through the likely range during the consult so there are no surprises.
Does Marc offer a free consultation?
Marc charges for the initial consult; that fee is credited toward representation if you retain Marc's office. Some internet attorneys offer free consults — check Marc's current terms during booking.
How long do internet cases in District of Columbia typically take?
Simple internet 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. Marc gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Marc take my case if I'm outside Washington?
Marc 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 — Marc 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 Marc?
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. Marc will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Marc accepting new internet clients right now?
Marc's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Internet attorneys serving Washington and Belize City in District of Columbia
Marc handles internet matters throughout District of Columbia. Each city below is a direct link into the search page for verified internet attorneys in that community.
More counsel
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