Atty. William Robert Ahern III

Atty. William Robert Ahern III

William Robert Ahern III is a lawyer practicing tax & joint venture, business law, taxation and 1 other area of law. William received a B.A. degree from The Ohio State University in 1992, and has been licensed for 28 years.

Irvine Irvine 28 yrs experience 28 year
Call (904) 850-9533 Book Appointment

Profile Summary

About William Robert Ahern III at a glance

William Robert Ahern III is a Partner based in Irvine, California, practforg at Allen Matkins Leck Gamble Mallory And Natsis Llp. They haand 28+ years of legal experience, licensed to practice since 1998. Admitted to practice in Ohio (1998), California (1998), and New York (2024). Educated at New York University School of Law (LL.M. Taxation, 1998) and The Ohio State University (B.A. Economics, 1992). Serands clients in Irvine, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Robert Ahern III is a lawyer practicing tax & joint venture, business law, taxation and 1 other area of law
  • William received a B.A. degree from The Ohio State University in 1992, and has been licensed for 28 years
  • William practices at Allen Matkins Leck Gamble Mallory & Natsis LLP in Irvine, CA

Jurisdictional Context

Why local counsel matters in California

Practforg law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand 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 substantiand 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 William Robert Ahern III

Where is William Robert Ahern III's law office located?
William Robert Ahern III's law practice is located in Irvine, California. The firm is Allen Matkins Leck Gamble Mallory And Natsis Llp. You can contact the office directly through this profile page.
How long has William Robert Ahern III practiced law?
William Robert Ahern III has 28+ years of legal experience and has been licensed since 1998.
Where did William Robert Ahern III go to law school?
William Robert Ahern III earned their education at (LL.M. Taxation, 1998); (B.A. Economics, 1992).
How can I contact William Robert Ahern III for a consultation?
You can contact William Robert Ahern 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

LL.M. Taxation
New York University School of Law
- 1998
B.A. Economics
The Ohio State University
- 1992

Bar Admissions

Ohio
Admitted: 1998
California
Admitted: 1998
New York
Admitted: 2024

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