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Irvin B. Nathan, Business Attorney in Washington, District of Columbia

Over 57 years of legal practice · focused on Business, Consumer, and Federal Crimes · 5.0/5 rating from 1 verified client review

AttorneyatArnold And Porter Llp

Washington, DC

Practicing business in Washington since 1969.

57+
Years practicing
5.0 ★
1 client review
3
Bar admissions

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Quick answer

Irvin B. Nathan is an attorney based in Washington, DC. The practice focuses on Business, Consumer, and Federal Crimes. Irvin has over 57 years of legal experience. Currently practicing at Arnold And Porter Llp. Rated 5.0 out of 5 from 1 client review.

Based in
Washington, DC
Experience
over 57 years
Known for
Business · Consumer · Federal Crimes
  • Handles Business, Consumer, and Federal Crimes matters from Washington, DC.
  • Over 57 years of practice as a licensed attorney.
  • Recognized with AV Preeminent.

About Irvin B. Nathan: Irvin B. Nathan is an attorney based in Washington, DC. The practice focuses on Business, Consumer, and Federal Crimes. Irvin has over 57 years of legal experience. Currently practicing at Arnold And Porter Llp. Rated 5.0 out of 5 from 1 client review.

Areas of practice

Irvin's practice areas in Washington

Irvin concentrates on business, consumer, federal crimes, general, and international. Each area below outlines the kind of case Irvin handles, typical outcomes to expect, and how the intake process starts.

Business cases in Washington, District of Columbia

Irvin 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 Irvin agrees to represent you.

Consumer cases in Washington, District of Columbia

Irvin takes consumer 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 Irvin agrees to represent you.

Federal Crimes cases in Washington, District of Columbia

Irvin takes federal crimes 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 Irvin agrees to represent you.

General cases in Washington, District of Columbia

Irvin 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 Irvin agrees to represent you.

International cases in Washington, District of Columbia

Irvin 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 Irvin agrees to represent you.

Biography

Irvin B. Nathan, business attorney serving Washington

Irvin B. Nathan is an attorney based in Washington, DC. The practice focuses on Business, Consumer, and Federal Crimes. Irvin has over 57 years of legal experience. Currently practicing at Arnold And Porter Llp. Rated 5.0 out of 5 from 1 client review. Irvin works from Washington, District of Columbia and takes on business matters across the region.

Mr. Irvin B. Nathan is a lawyer practicing commercial, securities & investment fraud, white collar crime defense and 6 other areas of law. Irvin received a B.A. degree from Johns Hopkins University in 1964, and has been licensed for 57 years. Irvin practices at Arnold & Porter LLP in Washington, DC.

Irvin's approach to business cases

Mr. Irvin B. Nathan is a lawyer practicing commercial, securities & investment fraud, white collar crime defense and 6 other areas of law. Irvin received a B.A. degree from Johns Hopkins University in 1964, and has been licensed for 57 years. Irvin practices at Arnold & Porter LLP in Washington, DC.

The kind of cases Irvin takes

Irvin reviews new inquiries case-by-case for business, consumer, and federal crimes matters in Washington and the surrounding District of Columbia area.

Credentials

Credentials — where Irvin studied and practices

  • Columbia University

    LL.B. · 1967

  • Johns Hopkins University

    B.A. · 1964

Jurisdictions

Irvin's state bar admissions

  • New York

    2001 · ACTIVE

  • U.S. Supreme Court

    1969 · ACTIVE

  • District of Columbia

    1969 · ACTIVE

Irvin studied at LL.B. in Columbia University and B.A. in Johns Hopkins University.

Law school and academic background

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

Recognition

Irvin's legal honors and published work

Irvin has received 1 formal recognition from bar associations, industry bodies, and peer-review services.

  • AV Preeminent

Legal awards and honors

AV Preeminent.

Locations

Irvin B. Nathan's office in Washington

Irvin's primary office is at 601 Massachusetts Ave., N.W., Washington, DC, 20001. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Arnold And Porter Llp

601 Massachusetts Ave., N.W.

Washington, DC 20001

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Client feedback

Client reviews of Irvin B. Nathan — 5.0/5 rating from 1 verified client review

Every review below is from a verified client of Irvin. 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 Irvin B. Nathan claims this profile.

Read all reviews

Hiring guide

How to hire Irvin B. Nathan — what to expect in your first consultation

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

Consultation formats and pricing

Irvin charges for the initial consult. That fee is credited toward representation if you retain Irvin'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; Irvin 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 Irvin

Irvin 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. Irvin confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Irvin'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 Irvin B. Nathan

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

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

  • Does Irvin offer a free consultation?

    Irvin charges for the initial consult; that fee is credited toward representation if you retain Irvin's office. Some business attorneys offer free consults — check Irvin'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. Irvin gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

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

    Irvin 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 — Irvin 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 Irvin?

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

  • Is Irvin accepting new business clients right now?

    Irvin'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

Irvin 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 Irvin'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.