Atty. John Patrick Hannon III

Atty. John Patrick Hannon III

John Patrick Hannon III is a lawyer practicing estate planning, trusts and wills, probate and 2 other areas of law. John has been licensed for 10 years.

Irvine Irvine 10 yrs experience 10 year
Call (424) 531-9007 Book Appointment

Profile Summary

About John Patrick Hannon III at a glance

John Patrick Hannon III is an Associate based in Irvine, California. They have 10+ years of legal experience, licensed to practice since 2016. Their practice focuses on trusts, probate, estate planning, and tax. Admitted to practice in California (2016). Serands clients in Irvine, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Patrick Hannon III is a lawyer practicing estate planning, trusts and wills, probate and 2 other areas of law
  • John has been licensed for 10 years
  • John practices in Irvine, CA

Practice Areas Explained

John Patrick Hannon III's Areas of Practice

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

Trusts

John Patrick Hannon III is one of 104,171 trusts attorneys indexed nationally. Browse trusts attorneys in California →

Probate

John Patrick Hannon III is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in California →

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

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

John Patrick Hannon III is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in California →

Jurisdictional Context

Why local counsel matters in California

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

Looking for additional California attorneys? Browse all attorneys in Irvine or all attorneys in California.

Frequently Asked

Common questions about John Patrick Hannon III

Where is John Patrick Hannon III's law office located?
John Patrick Hannon III's law practice is located in Irvine, California. You can contact the office directly through this profile page.
What practice areas does John Patrick Hannon III handle?
John Patrick Hannon III focuses on trusts, probate, estate planning, tax. Each practice area listed reflects experience handling cases of that type in California.
How long has John Patrick Hannon III practiced law?
John Patrick Hannon III has 10+ years of legal experience and has been licensed since 2016.
How can I contact John Patrick Hannon III for a consultation?
You can contact John Patrick Hannon 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.

Bar Admissions

California
Admitted: 2016

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