Atty. John Patrick O'Brien

Atty. John Patrick O'Brien

John Patrick O'Brien is a lawyer practicing litigation, complex commercial disputes and business law, securities and shareholder litigation and 1 other area of law. John received a degree from Fordham University School of Law, and has been licensed for 17 years.

New York New York 17 yrs experience 17 year
Call (332) 252-0385 Book Appointment

Complex Commercial Disputes And Business Law & More Attorney · Serving New York, NY · 17+ Years Experience

Profile Summary

About John Patrick O'Brien at a Glance

John Patrick O'Brien is an Associate based in New York, New York, practicing at Dechert LLP. They have 17+ years of legal experience, licensed to practice since 2009. Their practice focuses on business, white collar, and litigation. Admitted to practice in New York (2009). Educated at University of Connecticut School of Law (J.D., 2008) and Fordham University School of Law University of Maryland (B.A., 2005). Serves clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About John Patrick O'Brien

  • John Patrick O'Brien is a lawyer practicing litigation, complex commercial disputes and business law, securities and shareholder litigation and 1 other area of law
  • John received a degree from Fordham University School of Law, and has been licensed for 17 years
  • John practices at Dechert LLP in New York, NY

Practice Areas Explained

John Patrick O'Brien's Areas of Legal Practice

Each practice area below reflects the types of cases John Patrick O'Brien handles, with a practical overview of what that area of law involves and how it may apply to your situation in New York.

Business & Corporate Law in New York

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

John Patrick O'Brien is one of 497,491 business attorneys indexed nationally. Browse business attorneys in New York →

White Collar Crimes in New York

John Patrick O'Brien is one of 19,824 white collar attorneys indexed nationally. Browse white collar attorneys in New York →

Civil Litigation in New York

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John Patrick O'Brien is one of 450,751 litigation attorneys indexed nationally. Browse litigation 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 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 Patrick O'Brien

Where is John Patrick O'Brien's law office located?
John Patrick O'Brien's law practice is located in New York, New York. The firm is Dechert LLP. You can contact the office directly through this profile page.
What practice areas does John Patrick O'Brien handle?
John Patrick O'Brien focuses on business, white collar, litigation. Each practice area listed reflects experience handling cases of that type in New York.
How long has John Patrick O'Brien practiced law?
John Patrick O'Brien has 17+ years of legal experience and has been licensed since 2009.
Where did John Patrick O'Brien go to law school?
John Patrick O'Brien earned their education at (J.D., 2008); (B.A., 2005).
How can I contact John Patrick O'Brien for a consultation?
You can contact John Patrick O'Brien 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 Patrick O'Brien

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 Patrick O'Brien's practice in the field of business, white collar, and litigation.

Decade-Tested Legal Experience

John Patrick O'Brien 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.

Broad Practice Area Coverage

Covering business, white collar, and litigation, John Patrick O'Brien can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in New York

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

Case Types

Common Legal Issues John Patrick O'Brien Handles in New York

Below is a representative sample of the types of matters John Patrick O'Brien has experience with under New York law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Business formation and structure
Business
Contract drafting and review
Business
Partnership disputes
Business
Merger and acquisition support
Business

This list is illustrative, not exhaustive. Contact John Patrick O'Brien directly to discuss the specifics of your situation.

Search Reference

How People Find John Patrick O'Brien 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 Patrick O'Brien.

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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 Patrick O'Brien directly.

Education & Law School Background

J.D.
University of Connecticut School of Law
- 2008
B.A.
Fordham University School of Law University of Maryland
- 2005

Bar Admissions & Licensed Jurisdictions

New York
Admitted: 2009

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