
John P Warner, Business Attorney in Washington, District of Columbia
Over 48 years of legal practice · focused on Business, International Tax, and Tax · 5.0/5 rating from 1 verified client review
Co-managing ShareholderatBuchanan Ingersoll & Rooney PC
Washington, DC
Practicing business in Washington since 1978.
- 48+
- Years practicing
- 5.0 ★
- 1 client review
- 2
- Bar admissions
Practices in
Are you John P Warner?
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Quick answer
John P Warner is a co-managing shareholder based in Washington, DC. The practice focuses on Business, International Tax, and Tax. John has over 48 years of legal experience. Currently practicing at Buchanan Ingersoll & Rooney PC. Rated 5.0 out of 5 from 1 client review.
- Based in
- Washington, DC
- Experience
- over 48 years
- Known for
- Business · International Tax · Tax
- Handles Business, International Tax, and Tax matters from Washington, DC.
- Over 48 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About John P Warner: John P Warner is a co-managing shareholder based in Washington, DC. The practice focuses on Business, International Tax, and Tax. John has over 48 years of legal experience. Currently practicing at Buchanan Ingersoll & Rooney PC. Rated 5.0 out of 5 from 1 client review.
Areas of practice
John's practice areas in Washington
John concentrates on business, international tax, tax, and tax litigation. Each area below outlines the kind of case John handles, typical outcomes to expect, and how the intake process starts.
Business
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International Tax
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Tax
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Tax Litigation
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Business cases in Washington, District of Columbia
John 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 John agrees to represent you.
International Tax cases in Washington, District of Columbia
John takes international tax 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 John agrees to represent you.
Tax cases in Washington, District of Columbia
John takes tax 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 John agrees to represent you.
Tax Litigation cases in Washington, District of Columbia
John takes tax 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 John agrees to represent you.
Biography
John P Warner, business attorney serving Washington
John P Warner is a co-managing shareholder based in Washington, DC. The practice focuses on Business, International Tax, and Tax. John has over 48 years of legal experience. Currently practicing at Buchanan Ingersoll & Rooney PC. Rated 5.0 out of 5 from 1 client review. John works from Washington, District of Columbia and takes on business matters across the region.
John P Warner is a lawyer practicing tax, business and international tax, tax litigation and 1 other area of law. John received a B.A. degree from The George Washington University in 1971, and has been licensed for 48 years. John practices at Buchanan Ingersoll & Rooney PC in Washington, DC.
How John handles business matters
John P Warner is a lawyer practicing tax, business and international tax, tax litigation and 1 other area of law. John received a B.A. degree from The George Washington University in 1971, and has been licensed for 48 years. John practices at Buchanan Ingersoll & Rooney PC in Washington, DC.
Who John represents
John reviews new inquiries case-by-case for business, international tax, and tax matters in Washington and the surrounding District of Columbia area.
Credentials
Credentials — where John studied and practices
University of California at Berkeley
J.D. · 1977
The George Washington University
B.A. · 1971
Jurisdictions
John's state bar admissions
District of Columbia
1980 · ACTIVE
California
1978 · ACTIVE
John studied at J.D. in University of California at Berkeley and B.A. in The George Washington University.
Law school and academic background
John completed J.D. in University of California at Berkeley and B.A. in The George Washington University. Formal legal training is one signal of substantive knowledge — the day-to-day practice John runs in District of Columbia is where that training gets applied to real client questions.
Recognition
John's legal honors and published work
John has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
John's professional memberships and bar associations
State Bar of California District of Columbia Bar American Bar Association (Chair, Transfer Pricing Committee, Section of Taxation) United States Supreme Court Bar Association
membership
Locations
John P Warner's office in Washington
John's primary office is at 1700 K St., N.W., Ste. 300, Washington, DC, 20006-3807. In-person meetings are by appointment; a phone intake usually comes first.
Buchanan Ingersoll & Rooney PC
1700 K St., N.W., Ste. 300
Washington, DC 20006-3807
Open in Google MapsClient feedback
Client reviews of John P Warner — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of John. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing business 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 John P Warner claims this profile.
Read all reviewsHiring guide
How to hire John P Warner — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with John usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
John charges for the initial consult. That fee is credited toward representation if you retain John'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; John 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 John
John 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. John confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
John'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 John P Warner
How much does it cost to hire John for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. John walks through the likely range during the consult so there are no surprises.
Does John offer a free consultation?
John charges for the initial consult; that fee is credited toward representation if you retain John's office. Some business attorneys offer free consults — check John'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. John gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can John take my case if I'm outside Washington?
John 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 — John 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 John?
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. John will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is John accepting new business clients right now?
John'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
John 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.
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