Atty. John Thomas Henderson

Atty. John Thomas Henderson

John Thomas Henderson is a lawyer practicing estate planning, health care, guardianship and 2 other areas of law. John received a B.S.B.A. degree from Long Island University in 1974, and has been licensed for 24 years.

Hauppauge Hauppauge 24 yrs experience 24 year
Call (631) 769-9009 Book Appointment

Profile Summary

About John Thomas Henderson at a glance

John Thomas Henderson is a estate planning, business, poa, elder law, and health care attorney based in Hauppauge, New York. They have 24+ years of legal experience, licensed to practice since 2002. Admitted to practice in New York (2002). Educated at New York Law School (J.D., 1998) and Long Island University (B.S.B.A. Long, 1974). Serands clients in Hauppauge, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Thomas Henderson is a lawyer practicing estate planning, health care, guardianship and 2 other areas of law
  • John received a B.S.B.A. degree from Long Island University in 1974, and has been licensed for 24 years
  • John practices in Hauppauge, NY

Practice Areas Explained

John Thomas Henderson's Areas of Practice

Each practice area below reflects the types of cases John Thomas Henderson 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.

John Thomas Henderson 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.

John Thomas Henderson is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New York →

Power of Attorney

John Thomas Henderson is one of 33,188 poa attorneys indexed nationally. Browse poa attorneys in New York →

Elder Law

Elder law attorneys for Medicaid planning, long-term care, guardianship, conservatorship, and elder abuse.

John Thomas Henderson is one of 53,430 elder law attorneys indexed nationally. Browse elder law attorneys in New York →

Health Care Law

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

John Thomas Henderson is one of 66,735 health care attorneys indexed nationally. Browse health care 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 Hauppauge 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 Hauppauge or all attorneys in New York.

Frequently Asked

Common questions about John Thomas Henderson

Where is John Thomas Henderson's law office located?
John Thomas Henderson's law practice is located in Hauppauge, New York. You can contact the office directly through this profile page.
What practice areas does John Thomas Henderson handle?
John Thomas Henderson focuses on estate planning, business, poa, elder law, health care. Each practice area listed reflects experience handling cases of that type in New York.
How long has John Thomas Henderson practiced law?
John Thomas Henderson has 24+ years of legal experience and has been licensed since 2002.
Where did John Thomas Henderson go to law school?
John Thomas Henderson earned their education at (J.D., 1998); (B.S.B.A. Long, 1974).
How can I contact John Thomas Henderson for a consultation?
You can contact John Thomas Henderson 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.

Education

J.D.
New York Law School
- 1998
B.S.B.A. Long
Long Island University
- 1974

Bar Admissions

New York
Admitted: 2002

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