Mark Ethelberth Wallerson, IP Attorney in Washington, District of Columbia
Over 20 years of legal practice
AssociateatSughrue Mion, PLLC
Washington, DC
Practicing ip in Washington since 2006.
- 20+
- Years practicing
- 2
- Bar admissions
Practices in
Are you Mark Ethelberth Wallerson?
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Quick answer
Mark Ethelberth Wallerson is an associate based in Washington, DC. The practice focuses on IP. Mark has over 20 years of legal experience. Currently practicing at Sughrue Mion, PLLC.
- Based in
- Washington, DC
- Experience
- over 20 years
- Known for
- IP
- Handles IP matters from Washington, DC.
- Over 20 years of practice as a licensed attorney.
About Mark Ethelberth Wallerson: Mark Ethelberth Wallerson is an associate based in Washington, DC. The practice focuses on IP. Mark has over 20 years of legal experience. Currently practicing at Sughrue Mion, PLLC.
Areas of practice
Mark's practice areas in Washington
Mark concentrates on ip. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.
IP cases in Washington, District of Columbia
Mark 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 Mark agrees to represent you.
Biography
Mark Ethelberth Wallerson, ip attorney serving Washington
Mark Ethelberth Wallerson is an associate based in Washington, DC. The practice focuses on IP. Mark has over 20 years of legal experience. Currently practicing at Sughrue Mion, PLLC. Mark works from Washington, District of Columbia and takes on ip matters across the region.
Mr. Mark Ethelberth Wallerson is a lawyer practicing electrical intellectual property, intellectual property prosecution. Mark received a B.S. degree from Pratt Institute in 1993, and has been licensed for 20 years. Mark practices at Sughrue Mion, PLLC in Washington, DC.
Working with Mark on a ip matter
Mr. Mark Ethelberth Wallerson is a lawyer practicing electrical intellectual property, intellectual property prosecution. Mark received a B.S. degree from Pratt Institute in 1993, and has been licensed for 20 years. Mark practices at Sughrue Mion, PLLC in Washington, DC.
Who Mark represents
Mark reviews new inquiries case-by-case for ip matters in Washington and the surrounding District of Columbia area.
Credentials
Credentials — where Mark studied and practices
University of Baltimore School of Law
J.D. · 2005
Pratt Institute
B.S. Electrical · 1993
Jurisdictions
Mark's state bar admissions
District of Columbia
2014 · ACTIVE
Maryland
2006 · ACTIVE
Mark studied at J.D. in University of Baltimore School of Law and B.S. Electrical in Pratt Institute.
Law school and academic background
Mark completed J.D. in University of Baltimore School of Law and B.S. Electrical in Pratt Institute. 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
American Intellectual Property Law Association American Bar Association
Member, Sections on: Litigation Science and Technology Intellectual Property Law · membership
Locations
Mark Ethelberth Wallerson's office in Washington
Mark's primary office is at 2100 Pennsylvania Avenue, N.W., Suite 800, Washington, DC, 20037-3213. In-person meetings are by appointment; a phone intake usually comes first.
Sughrue Mion, PLLC
2100 Pennsylvania Avenue, N.W., Suite 800
Washington, DC 20037-3213
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Schedule your consultationHiring guide
How to hire Mark Ethelberth Wallerson — what to expect in your first consultation
Working with a new ip 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 ip attorney in Washington, District of Columbia
A short list to run through before you commit: How many ip 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 ip practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every ip 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 ip practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Mark Ethelberth Wallerson
How much does it cost to hire Mark for a ip 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 ip attorneys offer free consults — check Mark's current terms during booking.
How long do ip cases in District of Columbia typically take?
Simple ip 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 ip 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
IP attorneys serving Washington and Belize City in District of Columbia
Mark handles ip matters throughout District of Columbia. Each city below is a direct link into the search page for verified ip attorneys in that community.
More counsel
Other top-rated ip attorneys in District of Columbia
If Mark's intake is full or the fit isn't right, these ip attorneys in Washington handle similar matters. Every profile below is verified and open to consultations.

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