Atty. William Dean Regner

Atty. William Dean Regner

William Dean Regner is a lawyer practicing banking, mergers & acquisitions, securities and 4 other areas of law. William received a A.B. degree from Colgate University in 1988, and has been licensed for 31 years.

New York New York 31 yrs experience 31 year
Call (917) 920-7799 Book Appointment

Profile Summary

About William Dean Regner at a glance

William Dean Regner is a Partner based in New York, New York, practicing at Debevoise & Plimpton LLP. They have 31+ years of legal experience, licensed to practice since 1995. Their practice focuses on business, m&a, securities, and insurance. Admitted to practice in New York (1995). Educated at Yeshiva University Benjamin N. Cardozo School of Law (J.D., 1994) and Colgate University (A.B., 1988). Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Dean Regner is a lawyer practicing banking, mergers & acquisitions, securities and 4 other areas of law
  • William received a A.B. degree from Colgate University in 1988, and has been licensed for 31 years
  • William practices at Debevoise & Plimpton LLP in New York, NY

Practice Areas Explained

William Dean Regner's Areas of Practice

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

Business & Corporate Law

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

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

Mergers & Acquisitions

William Dean Regner is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in New York →

Securities Law

William Dean Regner is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in New York →

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

William Dean Regner is one of 121,912 insurance attorneys indexed nationally. Browse insurance 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 Dean Regner

Where is William Dean Regner's law office located?
William Dean Regner's law practice is located in New York, New York. The firm is Debevoise & Plimpton LLP. You can contact the office directly through this profile page.
What practice areas does William Dean Regner handle?
William Dean Regner focuses on business, m&a, securities, insurance. Each practice area listed reflects experience handling cases of that type in New York.
How long has William Dean Regner practiced law?
William Dean Regner has 31+ years of legal experience and has been licensed since 1995.
Where did William Dean Regner go to law school?
William Dean Regner earned their education at (J.D., 1994); (A.B., 1988).
How can I contact William Dean Regner for a consultation?
You can contact William Dean Regner 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.
Yeshiva University Benjamin N. Cardozo School of Law
- 1994
A.B.
Colgate University
- 1988

Bar Admissions

New York
Admitted: 1995

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