Atty. John J O'Neil

Atty. John J O'Neil

John J O'Neil is a lawyer practicing estate planning, trusts, appeals. John has been licensed for 47 years.

White Plains White Plains 47 yrs experience 47 year
Call (914) 821-5116 Book Appointment

Profile Summary

About John J O'Neil at a glance

John J O'Neil is a trusts, estate planning, and appellate attorney based in White Plains, New York. They have 47+ years of legal experience, licensed to practice since 1979. Admitted to practice in Florida (1979), District of Columbia (1982), and New York (1984). Educated at St. John's University J.D. (—). Serands clients in White Plains, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John J O'Neil is a lawyer practicing estate planning, trusts, appeals
  • John has been licensed for 47 years
  • John practices in White Plains, NY

Practice Areas Explained

John J O'Neil's Areas of Practice

Each practice area below reflects the types of cases John J O'Neil handles, with a brief overview of what that area of law covers.

Trusts

John J O'Neil is one of 104,171 trusts attorneys indexed nationally. Browse trusts attorneys in New York →

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.

John J O'Neil is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in New York →

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

John J O'Neil is one of 86,319 appellate attorneys indexed nationally. Browse appellate 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 White Plains 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 White Plains or all attorneys in New York.

Frequently Asked

Common questions about John J O'Neil

Where is John J O'Neil's law office located?
John J O'Neil's law practice is located in White Plains, New York. You can contact the office directly through this profile page.
What practice areas does John J O'Neil handle?
John J O'Neil focuses on trusts, estate planning, appellate. Each practice area listed reflects experience handling cases of that type in New York.
How long has John J O'Neil practiced law?
John J O'Neil has 47+ years of legal experience and has been licensed since 1979.
Where did John J O'Neil go to law school?
John J O'Neil earned their education at (—).
How can I contact John J O'Neil for a consultation?
You can contact John J O'Neil 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.

Practice Areas

Education

St. John's University J.D.
- In Progress

Bar Admissions

Florida
Admitted: 1979
District of Columbia
Admitted: 1982
New York
Admitted: 1984

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