Atty. William James C. Allen

Atty. William James C. Allen

William James C. Allen is a lawyer practicing banking & credit, corporate.

New York New York 13 yrs experience 13 year
Call (646) 693-5663 Book Appointment

Profile Summary

About William James C. Allen at a glance

William James C. Allen is an Attorney based in New York, New York, practicing at Simpson Thacher & Bartlett LLP. They have 13+ years of legal experience, licensed to practice since 2013. Their practice focuses on business. Admitted to practice in New York (2013). Educated at Harvard Law School (J.D., 2012) and Georgetown University (Summa Cum, 2009). Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William James C. Allen is a lawyer practicing banking & credit, corporate
  • William received a degree from Georgetown University in 2009, and has been licensed for 13 years
  • William practices at Simpson Thacher & Bartlett LLP in New York, NY

Practice Areas Explained

William James C. Allen's Areas of Practice

Each practice area below reflects the types of cases William James C. Allen 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 James C. Allen is one of 501,317 business attorneys indexed nationally. Browse business 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 James C. Allen

Where is William James C. Allen's law office located?
William James C. Allen's law practice is located in New York, New York. The firm is Simpson Thacher & Bartlett LLP. You can contact the office directly through this profile page.
What practice areas does William James C. Allen handle?
William James C. Allen focuses on business. Each practice area listed reflects experience handling cases of that type in New York.
How long has William James C. Allen practiced law?
William James C. Allen has 13+ years of legal experience and has been licensed since 2013.
Where did William James C. Allen go to law school?
William James C. Allen earned their education at (J.D., 2012); (Summa Cum, 2009).
How can I contact William James C. Allen for a consultation?
You can contact William James C. Allen 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.

Practice Areas

Education

J.D.
Harvard Law School
- 2012
Summa Cum
Georgetown University
- 2009

Bar Admissions

New York
Admitted: 2013

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