Atty. William J. Obrien

Atty. William J. Obrien

William J. Obrien is a lawyer practicing environmental law, corporate & incorporation, business.

New York New York 39 yrs experience 39 year
Call (602) 562-5483 Book Appointment

Profile Summary

About William J. Obrien at a glance

William J. Obrien is a Counsel based in New York, New York, practicing at Paul Weiss Rifkind Wharton And Garrison Llp. They have 39+ years of legal experience, licensed to practice since 1987. Their practice focuses on formation, business, and environmental. Admitted to practice in New York (1987) and Massachusetts (1988). Educated at University of Pennsylvania (J.D., 1986) and Williams College (B.A., 1981). Active member of Association of the Bar of the City of New York. Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William J. Obrien is a lawyer practicing environmental law, corporate & incorporation, business
  • William received a B.A. degree from Williams College in 1981, and has been licensed for 39 years
  • William practices at Paul, Weiss, Rifkind, Wharton & Garrison LLP in New York, NY

Practice Areas Explained

William J. Obrien's Areas of Practice

Each practice area below reflects the types of cases William J. Obrien handles, with a brief overview of what that area of law covers.

Business Formation

William J. Obrien is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in New York →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

William J. Obrien is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New York →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

William J. Obrien is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in New York →

Jurisdictional Context

Why local counsel matters in New York

Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in New York are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New York courts without local counsel or pro hac vice admission.

Looking for additional New York attorneys? Browse all attorneys in New York or all attorneys in New York.

Frequently Asked

Common questions about William J. Obrien

Where is William J. Obrien's law office located?
William J. Obrien's law practice is located in New York, New York. The firm is Paul Weiss Rifkind Wharton And Garrison Llp. You can contact the office directly through this profile page.
What practice areas does William J. Obrien handle?
William J. Obrien focuses on formation, business, environmental. Each practice area listed reflects experience handling cases of that type in New York.
How long has William J. Obrien practiced law?
William J. Obrien has 39+ years of legal experience and has been licensed since 1987.
Where did William J. Obrien go to law school?
William J. Obrien earned their education at (J.D., 1986); (B.A., 1981).
How can I contact William J. Obrien for a consultation?
You can contact William J. Obrien directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
University of Pennsylvania
- 1986
B.A.
Williams College
- 1981

Bar Admissions

New York
Admitted: 1987
Massachusetts
Admitted: 1988

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.