Atty. Daniel Patrick O'Brien

Atty. Daniel Patrick O'Brien

Daniel Patrick O'Brien is a lawyer practicing misdemeanors, personal injury, drug crimes and 4 other areas of law. Daniel received a degree from Delaware Law School, and has been licensed for 43 years.

Nesconset Nesconset 43 yrs experience 43 year
Call (631) 860-6249 Book Appointment

Profile Summary

About Daniel Patrick O'Brien at a glance

Daniel Patrick O'Brien is a Member based in Nesconset, New York, practicing at O'Brien & O'Brien, LLP. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on wills, drug crimes, trusts, personal injury, and criminal defense. Admitted to practice in New York (1983), Massachusetts (1983), U.S. District Court, District of Massachusetts (1984), and U.S. District Court, Eastern District of New York (1990). Educated at Delaware Law School St. Anselm College (B.A. Widener, 1979). Recognitions include Peer Reviewed. Active member of Suffolk County and New York State Bar Associations Suffolk County Criminal Bar Association. Serands clients in Nesconset, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Daniel Patrick O'Brien is a lawyer practicing misdemeanors, personal injury, drug crimes and 4 other areas of law
  • Daniel received a degree from Delaware Law School, and has been licensed for 43 years
  • Daniel practices at O'Brien & O'Brien, LLP in Nesconset, NY

Practice Areas Explained

Daniel Patrick O'Brien's Areas of Practice

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

Wills

Daniel Patrick O'Brien is one of 34,541 wills attorneys indexed nationally. Browse wills attorneys in New York →

Drug Crimes

Daniel Patrick O'Brien is one of 6,966 drug crimes attorneys indexed nationally. Browse drug crimes attorneys in New York →

Trusts

Daniel Patrick O'Brien is one of 104,172 trusts attorneys indexed nationally. Browse trusts attorneys in New York →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Daniel Patrick O'Brien is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in New York →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Daniel Patrick O'Brien is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense 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 Nesconset 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 Nesconset or all attorneys in New York.

Frequently Asked

Common questions about Daniel Patrick O'Brien

Where is Daniel Patrick O'Brien's law office located?
Daniel Patrick O'Brien's law practice is located in Nesconset, New York. The firm is O'Brien & O'Brien, LLP. You can contact the office directly through this profile page.
What practice areas does Daniel Patrick O'Brien handle?
Daniel Patrick O'Brien focuses on wills, drug crimes, trusts, personal injury, criminal defense. Each practice area listed reflects experience handling cases of that type in New York.
How long has Daniel Patrick O'Brien practiced law?
Daniel Patrick O'Brien has 43+ years of legal experience and has been licensed since 1983.
Where did Daniel Patrick O'Brien go to law school?
Daniel Patrick O'Brien earned their education at (B.A. Widener, 1979).
How can I contact Daniel Patrick O'Brien for a consultation?
You can contact Daniel 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.
What awards or recognition has Daniel Patrick O'Brien received?
Daniel Patrick O'Brien's notable recognition includes: Peer Reviewed.

Education

B.A. Widener
Delaware Law School St. Anselm College
- 1979

Awards

Peer Reviewed

Bar Admissions

New York
Admitted: 1983
Massachusetts
Admitted: 1983
U.S. District Court, District of Massachusetts
Admitted: 1984
U.S. District Court, Eastern District of New York
Admitted: 1990
U.S. District Court, Southern District of New York
Admitted: 2001

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