Seth D Greenstein, Business Attorney in Washington, District of Columbia
Over 41 years of legal practice · focused on Business, Copyright, and General
PartneratConstantine Cannon LLP
Washington, DC
Practicing business in Washington since 1985.
- 41+
- Years practicing
- 2
- Bar admissions
Practices in
Are you Seth D Greenstein?
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Quick answer
Seth D Greenstein is a partner based in Washington, DC. The practice focuses on Business, Copyright, and General. Seth has over 41 years of legal experience. Currently practicing at Constantine Cannon LLP.
- Based in
- Washington, DC
- Experience
- over 41 years
- Known for
- Business · Copyright · General
- Handles Business, Copyright, and General matters from Washington, DC.
- Over 41 years of practice as a licensed attorney.
About Seth D Greenstein: Seth D Greenstein is a partner based in Washington, DC. The practice focuses on Business, Copyright, and General. Seth has over 41 years of legal experience. Currently practicing at Constantine Cannon LLP.
Areas of practice
Legal matters Seth takes on
Seth concentrates on business, copyright, general, litigation, and trademark. Each area below outlines the kind of case Seth handles, typical outcomes to expect, and how the intake process starts.
Business
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Copyright
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General
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Litigation
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Trademark
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Business cases in Washington, District of Columbia
Seth 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 Seth agrees to represent you.
Copyright cases in Washington, District of Columbia
Seth takes copyright 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 Seth agrees to represent you.
General cases in Washington, District of Columbia
Seth 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 Seth agrees to represent you.
Litigation cases in Washington, District of Columbia
Seth takes 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 Seth agrees to represent you.
Trademark cases in Washington, District of Columbia
Seth takes trademark 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 Seth agrees to represent you.
Biography
Meet Seth D Greenstein — business lawyer in Washington
Seth D Greenstein is a partner based in Washington, DC. The practice focuses on Business, Copyright, and General. Seth has over 41 years of legal experience. Currently practicing at Constantine Cannon LLP.
Mr. Seth D Greenstein is a lawyer practicing computers and software, copyrights, trademarks and 3 other areas of law. Seth received a B.A. degree from University of Maryland in 1981, and has been licensed for 41 years. Seth practices at Constantine Cannon LLP in Washington, DC.
How Seth handles business matters
Mr. Seth D Greenstein is a lawyer practicing computers and software, copyrights, trademarks and 3 other areas of law. Seth received a B.A. degree from University of Maryland in 1981, and has been licensed for 41 years. Seth practices at Constantine Cannon LLP in Washington, DC.
Who Seth represents
Seth reviews new inquiries case-by-case for business, copyright, and general matters in Washington and the surrounding District of Columbia area.
Credentials
Education, bar admissions, and languages
Antioch School of Law
J.D. · 1984
University of Maryland
B.A. · 1981
Jurisdictions
Seth's state bar admissions
District of Columbia
1988 · ACTIVE
Maryland
1985 · ACTIVE
Seth studied at J.D. in Antioch School of Law and B.A. in University of Maryland.
Law school and academic background
Seth completed J.D. in Antioch School of Law and B.A. in University of Maryland. Formal legal training is one signal of substantive knowledge — the day-to-day practice Seth runs in District of Columbia is where that training gets applied to real client questions.
Locations
Seth D Greenstein's office in Washington
Seth's primary office is at One Franklin Square, 1301 K Street, N.W., Suite 1050 East, Washington, DC, 20005. In-person meetings are by appointment; a phone intake usually comes first.
Constantine Cannon LLP
One Franklin Square, 1301 K Street, N.W., Suite 1050 East
Washington, DC 20005
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Client reviews of Seth D Greenstein
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Schedule your consultationHiring guide
How to hire Seth D Greenstein — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with Seth usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Seth charges for the initial consult. That fee is credited toward representation if you retain Seth'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; Seth 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 Seth
Seth 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. Seth confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Seth'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 Seth D Greenstein
How much does it cost to hire Seth for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Seth walks through the likely range during the consult so there are no surprises.
Does Seth offer a free consultation?
Seth charges for the initial consult; that fee is credited toward representation if you retain Seth's office. Some business attorneys offer free consults — check Seth'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. Seth gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Seth take my case if I'm outside Washington?
Seth 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 — Seth 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 Seth?
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. Seth will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Seth accepting new business clients right now?
Seth'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
Seth 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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