Thomas Michael Dibiagio, Appellate Attorney in Washington, District of Columbia
Over 41 years of legal practice · focused on Appellate, Business, and Formation · 5.0/5 rating from 1 verified client review
PartneratDentons Us Llp
Washington, DC
Practicing appellate in Washington since 1985.
- 41+
- Years practicing
- 5.0 ★
- 1 client review
- 3
- Bar admissions
Are you Thomas Michael Dibiagio?
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Quick answer
Thomas Michael Dibiagio is a partner based in Washington, DC. The practice focuses on Appellate, Business, and Formation. Thomas has over 41 years of legal experience. Currently practicing at Dentons Us Llp. Rated 5.0 out of 5 from 1 client review.
- Based in
- Washington, DC
- Experience
- over 41 years
- Known for
- Appellate · Business · Formation
- Handles Appellate, Business, and Formation matters from Washington, DC.
- Over 41 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Thomas Michael Dibiagio: Thomas Michael Dibiagio is a partner based in Washington, DC. The practice focuses on Appellate, Business, and Formation. Thomas has over 41 years of legal experience. Currently practicing at Dentons Us Llp. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Practice areas handled by Thomas Michael Dibiagio
Thomas concentrates on appellate, business, formation, general, and international. Each area below outlines the kind of case Thomas handles, typical outcomes to expect, and how the intake process starts.
Appellate
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Business
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Formation
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General
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International
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Litigation
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Securities
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White Collar
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Consumer
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Criminal Defense
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Appellate cases in Washington, District of Columbia
Thomas takes appellate 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 Thomas agrees to represent you.
Business cases in Washington, District of Columbia
Thomas takes business 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 Thomas agrees to represent you.
Formation cases in Washington, District of Columbia
Thomas takes formation 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 Thomas agrees to represent you.
General cases in Washington, District of Columbia
Thomas 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 Thomas agrees to represent you.
International cases in Washington, District of Columbia
Thomas 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 Thomas agrees to represent you.
Biography
About Thomas Michael Dibiagio — Over 41 years of District of Columbia appellate experience
Thomas Michael Dibiagio is a partner based in Washington, DC. The practice focuses on Appellate, Business, and Formation. Thomas has over 41 years of legal experience. Currently practicing at Dentons Us Llp. Rated 5.0 out of 5 from 1 client review.
Mr. Thomas Michael Dibiagio is a lawyer practicing antitrust & competition law, white collar defense, appellate & supreme court practice and 11 other areas of law. Thomas received a B.A. degree from Dickinson College in 1982, and has been licensed for 41 years. Thomas practices at Dentons US LLP in Washington, DC.
Working with Thomas on a appellate matter
Mr. Thomas Michael Dibiagio is a lawyer practicing antitrust & competition law, white collar defense, appellate & supreme court practice and 11 other areas of law. Thomas received a B.A. degree from Dickinson College in 1982, and has been licensed for 41 years. Thomas practices at Dentons US LLP in Washington, DC.
Who Thomas represents
Thomas reviews new inquiries case-by-case for appellate, business, and formation matters in Washington and the surrounding District of Columbia area.
Credentials
Thomas Michael Dibiagio's legal education and bar admissions
University of Richmond School of Law
J.D. · 1985
Dickinson College
B.A. · 1982
Jurisdictions
Thomas's state bar admissions
U.S. District Court,
1986 · ACTIVE
District of Columbia
1986 · ACTIVE
Maryland US District
1985 · ACTIVE
Thomas studied at J.D. in University of Richmond School of Law and B.A. in Dickinson College.
Law school and academic background
Thomas completed J.D. in University of Richmond School of Law and B.A. in Dickinson College. Formal legal training is one signal of substantive knowledge — the day-to-day practice Thomas runs in District of Columbia is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of Thomas Michael Dibiagio
Thomas has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Locations
Thomas Michael Dibiagio's office in Washington
Thomas's primary office is at 1900 K St., N.W., Washington, DC, 20006. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Thomas Michael Dibiagio — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Thomas. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing appellate attorneys in Washington.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Thomas Michael Dibiagio claims this profile.
Read all reviewsHiring guide
How to hire Thomas Michael Dibiagio — what to expect in your first consultation
Working with a new appellate attorney should feel structured. Here's how the first two conversations with Thomas usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Thomas charges for the initial consult. That fee is credited toward representation if you retain Thomas'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; Thomas will tell you what matters and what doesn't.
Questions to ask a appellate attorney in Washington, District of Columbia
A short list to run through before you commit: How many appellate 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 Thomas
Thomas discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in appellate practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every appellate 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. Thomas confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Thomas's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many appellate practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Thomas Michael Dibiagio
How much does it cost to hire Thomas for a appellate case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Thomas walks through the likely range during the consult so there are no surprises.
Does Thomas offer a free consultation?
Thomas charges for the initial consult; that fee is credited toward representation if you retain Thomas's office. Some appellate attorneys offer free consults — check Thomas's current terms during booking.
How long do appellate cases in District of Columbia typically take?
Simple appellate 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. Thomas gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Thomas take my case if I'm outside Washington?
Thomas 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 — Thomas 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 Thomas?
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. Thomas will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Thomas accepting new appellate clients right now?
Thomas's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Appellate attorneys serving Washington and Belize City in District of Columbia
Thomas handles appellate matters throughout District of Columbia. Each city below is a direct link into the search page for verified appellate attorneys in that community.
More counsel
Other top-rated appellate attorneys in District of Columbia
If Thomas's intake is full or the fit isn't right, these appellate attorneys in Washington handle similar matters. Every profile below is verified and open to consultations.

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