Atty. John Patrick Hannon

Atty. John Patrick Hannon

John Patrick Hannon is a lawyer practicing litigation, appeals, white collar defense and corporate investigations and 8 other areas of law. John received a B.A. degree from Yale University in 1976, and has been licensed for 43 years.

New York New York 43 yrs experience 43 year
Call (332) 209-4418 Book Appointment

Profile Summary

About John Patrick Hannon at a glance

John Patrick Hannon is an Attorney based in New York, New York, practicing at Baker & Hostetler LLP. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on estate planning, business, white collar, securities, and litigation. Admitted to practice in New York (1983) and U.S. Tax Court and U.S. District Court, Southern and Eastern Districts of New York (1984). Educated at Georgetown Law Center (J.D. Georgetown, 1982) and Yale University (B.A. Yale, 1976). Active member of Association of the Bar of the City of New York. Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Patrick Hannon is a lawyer practicing litigation, appeals, white collar defense and corporate investigations and 8 other areas of law
  • John received a B.A. degree from Yale University in 1976, and has been licensed for 43 years
  • John practices at Baker & Hostetler LLP in New York, NY

Practice Areas Explained

John Patrick Hannon's Areas of Practice

Each practice area below reflects the types of cases John Patrick Hannon 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 Patrick Hannon is one of 226,536 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 Patrick Hannon is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New York →

White Collar Crimes

John Patrick Hannon is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in New York →

Securities Law

John Patrick Hannon is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in New York →

Civil Litigation

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

John Patrick Hannon is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 New York 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 New York or all attorneys in New York.

Frequently Asked

Common questions about John Patrick Hannon

Where is John Patrick Hannon's law office located?
John Patrick Hannon's law practice is located in New York, New York. The firm is Baker & Hostetler LLP. You can contact the office directly through this profile page.
What practice areas does John Patrick Hannon handle?
John Patrick Hannon focuses on estate planning, business, white collar, securities, litigation. Each practice area listed reflects experience handling cases of that type in New York.
How long has John Patrick Hannon practiced law?
John Patrick Hannon has 43+ years of legal experience and has been licensed since 1983.
Where did John Patrick Hannon go to law school?
John Patrick Hannon earned their education at (J.D. Georgetown, 1982); (B.A. Yale, 1976).
How can I contact John Patrick Hannon for a consultation?
You can contact John Patrick Hannon 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. Georgetown
Georgetown Law Center
- 1982
B.A. Yale
Yale University
- 1976

Bar Admissions

New York
Admitted: 1983
U.S. Tax Court and U.S. District Court, Southern and Eastern Districts of New York
Admitted: 1984

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