Atty. Sean Patrick O'Sullivan

Atty. Sean Patrick O'Sullivan

Sean Patrick O'Sullivan is a lawyer practicing wills & living wills, estate planning, administrative law and 3 other areas of law. Sean received a M.A. degree from Fordham University, and has been licensed for 25 years.

Staten Island Staten Island 25 yrs experience 25 year
Call (347) 201-4367 Book Appointment

Profile Summary

About Sean Patrick O'Sullivan at a glance

Sean Patrick O'Sullivan is a Member based in Staten Island, New York, practicing at Law Firm of Sean P. O'Sullivan. They have 25+ years of legal experience, licensed to practice since 2001. Their practice focuses on estate planning, business, real estate, poa, and government. Admitted to practice in New York (2001), U.S. District Court, Southern District of New York (2001), and U.S. District Court, Eastern District of New York (2001). Educated at Brooklyn Law School J.D. (—) and Fordham University M.A. New York University B.A. (—). Recognitions include Peer Reviewed. Active member of Director, Richmond County and New York State Bar Associations New York County Lawyers Association Irish American Bar Association of NY. Serands clients in Staten Island, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Sean Patrick O'Sullivan is a lawyer practicing wills & living wills, estate planning, administrative law and 3 other areas of law
  • Sean received a M.A. degree from Fordham University, and has been licensed for 25 years
  • Sean practices at Law Firm of Sean P. O'Sullivan in Staten Island, NY

Practice Areas Explained

Sean Patrick O'Sullivan's Areas of Practice

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

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

Sean Patrick O'Sullivan is one of 226,537 estate planning attorneys indexed nationally. Browse estate planning attorneys in New York →

Business & Corporate Law

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

Sean Patrick O'Sullivan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New York →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

Sean Patrick O'Sullivan is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in New York →

Power of Attorney

Sean Patrick O'Sullivan is one of 33,188 poa attorneys indexed nationally. Browse poa attorneys in New York →

Government & Administrative Law

Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.

Sean Patrick O'Sullivan is one of 132,225 government attorneys indexed nationally. Browse government 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 Staten Island 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 Staten Island or all attorneys in New York.

Frequently Asked

Common questions about Sean Patrick O'Sullivan

Where is Sean Patrick O'Sullivan's law office located?
Sean Patrick O'Sullivan's law practice is located in Staten Island, New York. The firm is Law Firm of Sean P. O'Sullivan. You can contact the office directly through this profile page.
What practice areas does Sean Patrick O'Sullivan handle?
Sean Patrick O'Sullivan focuses on estate planning, business, real estate, poa, government. Each practice area listed reflects experience handling cases of that type in New York.
How long has Sean Patrick O'Sullivan practiced law?
Sean Patrick O'Sullivan has 25+ years of legal experience and has been licensed since 2001.
Where did Sean Patrick O'Sullivan go to law school?
Sean Patrick O'Sullivan earned their education at (—); (—).
How can I contact Sean Patrick O'Sullivan for a consultation?
You can contact Sean Patrick O'Sullivan 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 Sean Patrick O'Sullivan received?
Sean Patrick O'Sullivan's notable recognition includes: Peer Reviewed.

Education

Brooklyn Law School J.D.
- In Progress
Fordham University M.A. New York University B.A.
- In Progress

Awards

Peer Reviewed

Bar Admissions

New York
Admitted: 2001
U.S. District Court, Southern District of New York
Admitted: 2001
U.S. District Court, Eastern District of New York
Admitted: 2001

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