Atty. Daniel Jonathan O'Neill

Atty. Daniel Jonathan O'Neill

Daniel Jonathan O'Neill is a lawyer practicing securities / investment fraud, antitrust / trade law, litigation. Daniel received a B.A. degree from Dartmouth College in 1998, and has been licensed for 22 years.

New York New York 22 yrs experience 22 year
Call (332) 529-6938 Book Appointment

Profile Summary

About Daniel Jonathan O'Neill at a glance

Daniel Jonathan O'Neill is a Counsel based in New York, New York, practicing at Shapiro Arato And Isserles Llp. They have 22+ years of legal experience, licensed to practice since 2004. Their practice focuses on securities, litigation, and consumer. Admitted to practice in New York U.S. District Court, Eastern District of New York U.S. District Court, Southern District of (2004). Educated at Duke University School of Law (J.D., 2003) and Dartmouth College (B.A. Government, 1998). Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Daniel Jonathan O'Neill is a lawyer practicing securities / investment fraud, antitrust / trade law, litigation
  • Daniel received a B.A. degree from Dartmouth College in 1998, and has been licensed for 22 years
  • Daniel practices at Shapiro, Arato & Isserles LLP in New York, NY

Practice Areas Explained

Daniel Jonathan O'Neill's Areas of Practice

Each practice area below reflects the types of cases Daniel Jonathan O'Neill handles, with a brief overview of what that area of law covers.

Securities Law

Daniel Jonathan O'Neill is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in New York →

Civil Litigation

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

Daniel Jonathan O'Neill is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New York →

Consumer Protection

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

Daniel Jonathan O'Neill is one of 50,607 consumer attorneys indexed nationally. Browse consumer 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 Daniel Jonathan O'Neill

Where is Daniel Jonathan O'Neill's law office located?
Daniel Jonathan O'Neill's law practice is located in New York, New York. The firm is Shapiro Arato And Isserles Llp. You can contact the office directly through this profile page.
What practice areas does Daniel Jonathan O'Neill handle?
Daniel Jonathan O'Neill focuses on securities, litigation, consumer. Each practice area listed reflects experience handling cases of that type in New York.
How long has Daniel Jonathan O'Neill practiced law?
Daniel Jonathan O'Neill has 22+ years of legal experience and has been licensed since 2004.
Where did Daniel Jonathan O'Neill go to law school?
Daniel Jonathan O'Neill earned their education at (J.D., 2003); (B.A. Government, 1998).
How can I contact Daniel Jonathan O'Neill for a consultation?
You can contact Daniel Jonathan O'Neill 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.
Duke University School of Law
- 2003
B.A. Government
Dartmouth College
- 1998

Bar Admissions

New York U.S. District Court, Eastern District of New York U.S. District Court, Southern District of
Admitted: 2004

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