William Joseph Duffy

As a former Certified Law Clerk for the Los Angeles County District Attorney, William Duffy has unique insight into the way the government handles criminal charges.

Mr. Duffy is an experienced and accomplished trial lawyer who concentrates his practice on general criminal and DUI defense in felony and misdemeanor cases. He represents a broad array of individuals at the investigative, pre-trial, motion and trial stages. His successes range from outright case dismissals and acquittals, to extremely favorable plea agreements. Mr. Duffy also has extensive jury trial experience in state court. Mr. Duffy is committed to making sure each client is satisfied with the result of his/her case. He has handled several newsworthy and high-profile cases.

Mr. Duffy’s experience in criminal defense runs the gamut – from felony DUI with Great Bodily Injury to drug possession and sales, firearms offenses, juvenile offenses, theft and fraud cases, embezzlement, and misdemeanor driving under the influence. He has negotiated thousands of cases and independently tried more than a dozen jury trials.

In William Duffy, you will have a defense attorney with extensive courtroom experience who takes the time to understand your unique circumstances and tip the scales of justice in your favor.

Western State University College of Law

J.D. (2006)

University of Montana

B.A. (1994)

Managing Attorney

The Law Offices of Todd Landgren

Current

Managing Attorney

Duffy Law, PC

2017 - Current

Managing Attorney

Law Offices of Myles L. Berman

2011 - 2017

Managing Attorney

The Ticket Clinic

2010 - 2011

Attorney

Shouse Law Group

2008 - 2009

Deputy Public Defender

San Bernadino County

2007 - 2008

DRIVING UNDER THE INFLUENCE CASES

California Criminal Law - Procedure and Practice

2017

Clients' Choice Award

Avvo

2018

Top Attorney DUI, 10.0 Superb

Avvo

Newport Harbor Bar Association

Current

North Orange County Bar Association

Current

CALIFORNIA DUI LAWYERS ASSOCIATION

Current

Orange County Bar Association

Current

National Association of Criminal Defense Lawyers

Current

California

State Bar of California

ID Number: 248742

Since 2007

• Free Consultation
  We are happy to discuss your case with you and provide a realistic estimate of what you can expect from the Court and DMV based on your individual case.
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Q. I have a past domestic violence record that was expunged. It was back in 2005. I would like to know if I can buy a gun?

April 28, 2021

A: 10-year Ban under California law from date of DV conviction. There is however a Federal lifetime ban on firearms.

Q. I am a victim of domestic violence but was never told I had to go to court, but my partner did. Do I still have to go?

January 13, 2021

A: You may not need to go to court unless there is a jury trial. However, finding your own representation can be essential whatever your position in regards to your partners case. In short, you may want to advocate for or against conviction of your partner. This can be accomplished with greater success using a Victim Right’s Attorney or a criminal defense attorney. If you suffered any injury as a result. A victim rights attorney can also help you obtain compensation to fully restore you.

Q. Got dui Didn’t complete classes Warrant issued 8 years later caught What will likely happen in court when I show up

October 8, 2020

A: Best strategy to hire a local attorney who can recall the warrant. Some courts will vacate the class, others may make you complete it now. Either way, probably no significant penalty, if any.