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Duffy Knoll, Business Attorney in Washington, District of Columbia

Over 33 years of legal practice · focused on Business, General, and Internet

Washington, DC

Practicing business in Washington since 1993.

33+
Years practicing
3
Bar admissions

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Quick answer

Duffy Knoll is an attorney based in Washington, DC. The practice focuses on Business, General, and Internet. Duffy has over 33 years of legal experience.

Based in
Washington, DC
Experience
over 33 years
Known for
Business · General · Internet
  • Handles Business, General, and Internet matters from Washington, DC.
  • Over 33 years of practice as a licensed attorney.

About Duffy Knoll: Duffy Knoll is an attorney based in Washington, DC. The practice focuses on Business, General, and Internet. Duffy has over 33 years of legal experience.

Areas of practice

Legal matters Duffy takes on

Duffy concentrates on business, general, and internet. Each area below outlines the kind of case Duffy handles, typical outcomes to expect, and how the intake process starts.

Business cases in Washington, District of Columbia

Duffy 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 Duffy agrees to represent you.

General cases in Washington, District of Columbia

Duffy 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 Duffy agrees to represent you.

Internet cases in Washington, District of Columbia

Duffy 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 Duffy agrees to represent you.

Biography

Meet Duffy Knoll — business lawyer in Washington

Duffy Knoll is an attorney based in Washington, DC. The practice focuses on Business, General, and Internet. Duffy has over 33 years of legal experience.

Duffy Knoll is a lawyer practicing telecommunications law, technology law, business law and 1 other area of law. Duffy received a B.A. degree from Georgetown University in 1989, and has been licensed for 33 years. Duffy practices in Washington, DC.

Duffy's approach to business cases

Duffy Knoll is a lawyer practicing telecommunications law, technology law, business law and 1 other area of law. Duffy received a B.A. degree from Georgetown University in 1989, and has been licensed for 33 years. Duffy practices in Washington, DC.

The kind of cases Duffy takes

Duffy reviews new inquiries case-by-case for business, general, and internet matters in Washington and the surrounding District of Columbia area.

Credentials

Education, bar admissions, and languages

  • Georgetown University

    J.D. · 1993

  • Georgetown University

    B.A. · 1989

Jurisdictions

Duffy's state bar admissions

  • District of Columbia

    1996 · ACTIVE

  • U.S. District Court,

    1994 · ACTIVE

  • Maryland

    1993 · ACTIVE

Duffy studied at J.D. in Georgetown University and B.A. in Georgetown University.

Law school and academic background

Duffy completed J.D. in Georgetown University and B.A. in Georgetown University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Duffy runs in District of Columbia is where that training gets applied to real client questions.

Locations

Duffy Knoll's office in Washington

Duffy's primary office is at 2550 M Street, N.W., Washington, DC, 20037-1350. In-person meetings are by appointment; a phone intake usually comes first.

Main office

2550 M Street, N.W.

Washington, DC 20037-1350

Open in Google Maps

Client feedback

Client reviews of Duffy Knoll

Duffy 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 Duffy Knoll — what to expect in your first consultation

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

Consultation formats and pricing

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

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

A short list to run through before you commit: How many business 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 Duffy

Duffy discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in business practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every business 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. Duffy confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Duffy's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many business practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Duffy Knoll

  • How much does it cost to hire Duffy for a business case?

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

  • Does Duffy offer a free consultation?

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

  • How long do business cases in District of Columbia typically take?

    Simple business 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. Duffy gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

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

    Duffy 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 — Duffy 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 Duffy?

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

  • Is Duffy accepting new business clients right now?

    Duffy's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

Business attorneys serving Washington and Belize City in District of Columbia

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

More counsel

If Duffy's intake is full or the fit isn't right, these business attorneys in Washington handle similar matters. Every profile below is verified and open to consultations.