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

Drug Crimes & More Attorney · Serving Nesconset, NY · 43+ Years Experience

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. Serves clients in Nesconset, NY and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About 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
  • Daniel practices at O'Brien & O'Brien, LLP in Nesconset, NY

Practice Areas Explained

Daniel Patrick O'Brien's Areas of Legal Practice

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

Wills in Nesconset

Daniel Patrick O'Brien is one of 34,363 wills attorneys indexed nationally. Browse wills attorneys in New York →

Drug Crimes in Nesconset

Daniel Patrick O'Brien is one of 6,914 drug crimes attorneys indexed nationally. Browse drug crimes attorneys in New York →

Trusts in Nesconset

Daniel Patrick O'Brien is one of 103,428 trusts attorneys indexed nationally. Browse trusts attorneys in New York →

Personal Injury in Nesconset

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 262,557 personal injury attorneys indexed nationally. Browse personal injury attorneys in New York →

Criminal Defense in Nesconset

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 212,605 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in New York →

Jurisdictional Context

Why Local Counsel Matters in Nesconset

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 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.

Nesconset Courts and Legal Process

Choosing a Nesconset-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 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.

Professional Profile

Why Clients in Nesconset Choose Daniel 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 Daniel Patrick O'Brien's practice in the field of wills, drug crimes, trusts, personal injury, and criminal defense.

Decade-Tested Legal Experience

Daniel Patrick O'Brien brings 43+ 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 New York, Massachusetts, and U.S. District Court, District of Massachusetts, Daniel Patrick O'Brien can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Broad Practice Area Coverage

Covering wills, drug crimes, and trusts, Daniel 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 Nesconset

A Nesconset-based practice means Daniel 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 Daniel Patrick O'Brien Handles in Nesconset

Below is a representative sample of the types of matters Daniel 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.

Car accident injury claims
Personal Injury
Slip and fall cases
Personal Injury
Wrongful death suits
Personal Injury
Workers' compensation appeals
Personal Injury

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

Search Reference

How People Find Daniel Patrick O'Brien Online

Prospective clients searching for legal help in Nesconset 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 Daniel 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 Daniel Patrick O'Brien directly.

Daniel Patrick O'Brien's Practice Areas & Specializations

Education & Law School Background

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

Awards & Professional Honors

Peer Reviewed

Bar Admissions & Licensed Jurisdictions

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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