Gustavo E. I. Matheus, ADR Attorney in Washington, District of Columbia
Over 30 years of legal practice · focused on ADR, Health Care, and Workers Comp · 5.0/5 rating from 2 verified client reviews
PartneratFeldesman Leifer LLP
Washington, DC
Practicing adr in Washington since 1996.
- 30+
- Years practicing
- 5.0 ★
- 2 client reviews
- 3
- Bar admissions
Practices in
Are you Gustavo E. I. Matheus?
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Quick answer
Gustavo E. I. Matheus is a partner based in Washington, DC. The practice focuses on ADR, Health Care, and Workers Comp. Gustavo has over 30 years of legal experience. Currently practicing at Feldesman Leifer LLP. Rated 5.0 out of 5 from 2 client reviews.
- Based in
- Washington, DC
- Experience
- over 30 years
- Known for
- ADR · Health Care · Workers Comp
- Handles ADR, Health Care, and Workers Comp matters from Washington, DC.
- Over 30 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Gustavo E. I. Matheus: Gustavo E. I. Matheus is a partner based in Washington, DC. The practice focuses on ADR, Health Care, and Workers Comp. Gustavo has over 30 years of legal experience. Currently practicing at Feldesman Leifer LLP. Rated 5.0 out of 5 from 2 client reviews.
Areas of practice
Legal matters Gustavo takes on
Gustavo concentrates on adr, health care, and workers comp. Each area below outlines the kind of case Gustavo handles, typical outcomes to expect, and how the intake process starts.
ADR
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Health Care
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Workers Comp
View other Workers Comp attorneys
ADR cases in Washington, District of Columbia
Gustavo takes adr 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 Gustavo agrees to represent you.
Health Care cases in Washington, District of Columbia
Gustavo 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 Gustavo agrees to represent you.
Workers Comp cases in Washington, District of Columbia
Gustavo takes workers comp 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 Gustavo agrees to represent you.
Biography
Meet Gustavo E. I. Matheus — adr lawyer in Washington
Gustavo E. I. Matheus is a partner based in Washington, DC. The practice focuses on ADR, Health Care, and Workers Comp. Gustavo has over 30 years of legal experience. Currently practicing at Feldesman Leifer LLP. Rated 5.0 out of 5 from 2 client reviews.
Gustavo E. I. Matheus is a lawyer practicing health law, workers compensation arbitration. Gustavo E. I. received a B.A. degree from University of Maryland in 1990, and has been licensed for 30 years. Gustavo E. I. practices at Feldesman Leifer LLP in Washington, DC.
Working with Gustavo on a adr matter
Gustavo E. I. Matheus is a lawyer practicing health law, workers compensation arbitration. Gustavo E. I. received a B.A. degree from University of Maryland in 1990, and has been licensed for 30 years. Gustavo E. I. practices at Feldesman Leifer LLP in Washington, DC.
Who Gustavo represents
Gustavo reviews new inquiries case-by-case for adr, health care, and workers comp matters in Washington and the surrounding District of Columbia area.
Credentials
Education, bar admissions, and languages
McGeorge School of Law
J.D. · 1996
University of Maryland
B.A. · 1990
Jurisdictions
Gustavo's state bar admissions
Virginia U.S. Distri
2017 · ACTIVE
District of Columbia
2015 · ACTIVE
Maryland
1996 · ACTIVE
Gustavo studied at J.D. in McGeorge School of Law and B.A. in University of Maryland.
Law school and academic background
Gustavo completed J.D. in McGeorge School of Law and B.A. in University of Maryland. Formal legal training is one signal of substantive knowledge — the day-to-day practice Gustavo runs in District of Columbia is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Gustavo has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
Gustavo's professional memberships and bar associations
American Association of Healthcare Account Management, Member: Health Finance Management Association, member Maryland State Bar Association Health Law Section, member Virginia State Bar and Bowie Health Center Foundation, Board of Directors
membership
Locations
Gustavo E. I. Matheus's office in Washington
Gustavo's primary office is at 1129 20th Street, NW, Suite 400, Washington, DC, 20036. In-person meetings are by appointment; a phone intake usually comes first.
Feldesman Leifer LLP
1129 20th Street, NW, Suite 400
Washington, DC 20036
Open in Google MapsClient feedback
Client reviews of Gustavo E. I. Matheus — 5.0/5 rating from 2 verified client reviews
Every review below is from a verified client of Gustavo. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing adr attorneys in Washington.
5.0
2 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Gustavo E. I. Matheus claims this profile.
Read all reviewsHiring guide
How to hire Gustavo E. I. Matheus — what to expect in your first consultation
Working with a new adr attorney should feel structured. Here's how the first two conversations with Gustavo usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Gustavo charges for the initial consult. That fee is credited toward representation if you retain Gustavo'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; Gustavo will tell you what matters and what doesn't.
Questions to ask a adr attorney in Washington, District of Columbia
A short list to run through before you commit: How many adr 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 Gustavo
Gustavo discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in adr practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every adr 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. Gustavo confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Gustavo's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many adr practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Gustavo E. I. Matheus
How much does it cost to hire Gustavo for a adr case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Gustavo walks through the likely range during the consult so there are no surprises.
Does Gustavo offer a free consultation?
Gustavo charges for the initial consult; that fee is credited toward representation if you retain Gustavo's office. Some adr attorneys offer free consults — check Gustavo's current terms during booking.
How long do adr cases in District of Columbia typically take?
Simple adr 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. Gustavo gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Gustavo take my case if I'm outside Washington?
Gustavo 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 — Gustavo 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 Gustavo?
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. Gustavo will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Gustavo accepting new adr clients right now?
Gustavo's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
ADR attorneys serving Washington and Belize City in District of Columbia
Gustavo handles adr matters throughout District of Columbia. Each city below is a direct link into the search page for verified adr attorneys in that community.
More counsel
Other top-rated adr attorneys in District of Columbia
If Gustavo's intake is full or the fit isn't right, these adr attorneys in Washington handle similar matters. Every profile below is verified and open to consultations.

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