Atty. John Cornelius

Atty. John Cornelius

John Cornelius is a lawyer. John received a B.A. degree from University of Minnesota in 1997, and has been licensed for 17 years.

New York New York 17 yrs experience 17 year
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Attorney · Serving New York, NY · 17+ Years Experience

Profile Summary

About John Cornelius at a Glance

John Cornelius is an Associate based in New York, New York, practicing at Cleary Gottlieb Steen & Hamilton LLP. They have 17+ years of legal experience, licensed to practice since 2009. Admitted to practice in Wisconsin (2009), New York (2010), and Virginia (2017). Educated at University of Wisconsin Law School (J.D., 2009) and University of Minnesota (B.A. University, 1997). Serves clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About John Cornelius

  • John Cornelius is a lawyer
  • John received a B.A. degree from University of Minnesota in 1997, and has been licensed for 17 years
  • John practices at Cleary Gottlieb Steen & Hamilton LLP in New York, NY

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 venue, 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.

New York Courts and Legal Process

Choosing a New York-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

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

Frequently Asked

Common Questions About John Cornelius

Where is John Cornelius's law office located?
John Cornelius's law practice is located in New York, New York. The firm is Cleary Gottlieb Steen & Hamilton LLP. You can contact the office directly through this profile page.
How long has John Cornelius practiced law?
John Cornelius has 17+ years of legal experience and has been licensed since 2009.
Where did John Cornelius go to law school?
John Cornelius earned their education at (J.D., 2009); (B.A. University, 1997).
How can I contact John Cornelius for a consultation?
You can contact John Cornelius 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.

Professional Profile

Why Clients in New York Choose John Cornelius

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish John Cornelius's practice.

Decade-Tested Legal Experience

John Cornelius brings 17+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Multi-State Bar Admission

Licensed in Wisconsin, New York, and Virginia, John Cornelius can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Local Presence in New York

A New York-based practice means John Cornelius attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Search Reference

How People Find John Cornelius Online

Prospective clients searching for legal help in New York commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like John Cornelius.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with John Cornelius directly.

Education & Law School Background

J.D.
University of Wisconsin Law School
- 2009
B.A. University
University of Minnesota
- 1997

Bar Admissions & Licensed Jurisdictions

Wisconsin
Admitted: 2009
New York
Admitted: 2010
Virginia
Admitted: 2017

Client Reviews & Ratings — John Cornelius

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