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Are you John J. Barnosky?
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Quick answer
John J. Barnosky is an attorney based in Uniondale, NEW YORK. The practice focuses on Trusts.
- Based in
- Uniondale, NEW YORK
- Experience
- attorney
- Known for
- Trusts
- Handles Trusts matters from Uniondale, NEW YORK.
- Recognized with Lawyer of the Year — Litigation - Trusts and Estates (Long Island) (2025).
About John J. Barnosky: John J. Barnosky is an attorney based in Uniondale, NEW YORK. The practice focuses on Trusts.
Areas of practice
Practice focus
John J. Barnosky represents clients in Uniondale, New York across the following areas of law. Each area links to other verified attorneys with the same focus.
Biography
About John J. Barnosky
John Barnosky is a trusts and estates lawyer advising families, individuals, banks, foundations, and other institutions. Jack handles the full range of estate planning, probate and administration, as well as taxation matters. John also represents clients in litigated trusts and estates matters, including will contests, disputes over the validity of trusts, contested accounting proceedings, and tax disputes before the Surrogate’s Courts and other courts throughout New York.
A longtime leader in his field, Jack is a frequent lecturer at New York State Bar Association seminars on trusts and estates topics. He is also a contributor to Farrell Fritz’s New York Trusts & Estates Litigation blog and has published articles in the New York Law Journal, The Nassau Lawyer, and the Journal of the Suffolk Academy of Law. Jack is a co-author of the treatise, “Revocable Trusts,” published by Thomson West, and has written sections of Warren’s Heaton on Surrogate’s Court Practice. Jack is also a former adjunct law professor at Touro Law School.
Credentials
Education
St. John's University
J.D. · 1967
Assumption College
— · 1964
Jurisdictions
Bar admissions
New York, United Sta
ACTIVE
United States, Tax C
ACTIVE
United States, Supre
ACTIVE
Recognition
Awards & honors
Lawyer of the Year — Litigation - Trusts and Estates (Long Island)
2025
Lawyer of the Year — Litigation - Trusts and Estates (Long Island)
2020
Lawyer of the Year — Trusts and Estates (Long Island)
2018
Lawyer of the Year — Litigation - Trusts and Estates (Long Island)
2017
Best Lawyers in America — Litigation - Trusts and Estates
2026
Best Lawyers in America — Trusts and Estates
2026
Best Lawyers in America — Special Focus:
2026
Best Lawyers in America — Appellate
2026
Best Lawyers in America — Estate Planning
2026
Best Lawyers in America — Fiduciary Duties
2026
Best Lawyers in America — Litigation
2026
Best Lawyers in America — Nonprofit Organizations and Charitable Giving
2026
Best Lawyers in America — Planning for Closely Held Businesses
2026
Best Lawyers in America — Probate
2026
Best Lawyers in America — Succession Planning
2026
Best Lawyers in America — Tax
2026
Best Lawyers in America — Awards:
2026
Best Lawyers in America — AV Preeminent Martindale-Hubbell Peer Review Rating
2026
Best Lawyers in America — The Best Lawyers in America (Litigation - Trusts & Estates; Trusts & Estates), annually since 1999
2026
Best Lawyers in America — New York Metro Super Lawyers list (Estate & Trust Litigation), 2007-2016
2026
Best Lawyers in America — Best Trusts & Estates Lawyers in America, American Lawyer, November 2004
2026
Best Lawyers in America — The Best Lawyers in the U.S., 2008
2026
Best Lawyers in America — Leading Individual, NY Private Wealth: Disputes, Chambers High Net Worth
2026
Best Lawyers in America — The Best Lawyers in America "Lawyer of the Year," 2017
2026
Locations
Office locations
Client feedback
Client reviews
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Schedule your consultationFrequently asked
Common questions
What areas of law does John J. Barnosky practice?
John J. Barnosky focuses on Trusts.
Where is John J. Barnosky located?
John J. Barnosky primarily serves clients in Uniondale, New York, with an office at 4000 RXR Plaza.
Is John J. Barnosky a verified attorney?
John J. Barnosky's profile is listed but has not yet been claimed by the attorney. Verification status is pending.
How can I schedule a consultation with John J. Barnosky?
You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 516-227-0700.
