Atty. John J. Leo III

Atty. John J. Leo III

John J. Leo III is a lawyer practicing civil litigation, land use, estate planning and 1 other area of law.

Parsippany Parsippany 23 yrs experience 23 year
Call (862) 946-5345 Book Appointment

Profile Summary

About John J. Leo III at a glance

John J. Leo III is a probate, estate planning, zoning, and litigation attorney based in Parsippany, New Jersey. They have 23+ years of legal experience, licensed to practice since 2003. Admitted to practice in New Jersey (2003), Pennsylvania (2003), and U.S. District Court, Eastern and Middle Districts of Pennsylvania and U.S. Court of Appeals, Third C (2003). Educated at Syracuse University (J.D., 2003) and State University of New York at Binghamton (B.A., 1999). Serands clients in Parsippany, NJ and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John J. Leo III is a lawyer practicing civil litigation, land use, estate planning and 1 other area of law
  • John J. received a B.A. degree from State University of New York at Binghamton in 1999, and has been licensed for 23 years
  • John J. practices in Parsippany, NJ

Practice Areas Explained

John J. Leo III's Areas of Practice

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

Probate

John J. Leo III is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in New Jersey →

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. Leo III is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in New Jersey →

Land Use & Zoning

John J. Leo III is one of 40,226 zoning attorneys indexed nationally. Browse zoning attorneys in New Jersey →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John J. Leo III is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New Jersey →

Jurisdictional Context

Why local counsel matters in New Jersey

Practicing law in New Jersey. Legal matters in New Jersey are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Parsippany are typically filed in the local municipal court or the appropriate New Jersey state district court, depending on subject matter and amount in controversy. An attorney licensed in New Jersey 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 Jersey courts without local counsel or pro hac vice admission.

Looking for additional New Jersey attorneys? Browse all attorneys in Parsippany or all attorneys in New Jersey.

Frequently Asked

Common questions about John J. Leo III

Where is John J. Leo III's law office located?
John J. Leo III's law practice is located in Parsippany, New Jersey. You can contact the office directly through this profile page.
What practice areas does John J. Leo III handle?
John J. Leo III focuses on probate, estate planning, zoning, litigation. Each practice area listed reflects experience handling cases of that type in New Jersey.
How long has John J. Leo III practiced law?
John J. Leo III has 23+ years of legal experience and has been licensed since 2003.
Where did John J. Leo III go to law school?
John J. Leo III earned their education at (J.D., 2003); (B.A., 1999).
How can I contact John J. Leo III for a consultation?
You can contact John J. Leo III 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.
Syracuse University
- 2003
B.A.
State University of New York at Binghamton
- 1999

Bar Admissions

New Jersey
Admitted: 2003
Pennsylvania
Admitted: 2003
U.S. District Court, Eastern and Middle Districts of Pennsylvania and U.S. Court of Appeals, Third C
Admitted: 2003

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