Call Us Today


William K. Sweeney is of counsel at Quinn & Dworakowski and an asset to the firm, bringing over 40 years of experience as a probate attorney. A highly experienced and dedicated lawyer, Bill has handled probate matters throughout California, from large to small, and has appeared before probate courts across the state. Over the years, he has helped numerous families understand their rights and legal options regarding estates in California.
Bill is a U.S. Air Force Veteran (1958-1962.) Bill received his bachelor’s degree in accounting at the University of Redlands (1967) and a Juris Doctor degree from the University of San Diego School of Law (1971.) In 1979, Bill earned a Master of Business Administration (MBA) degree from the University of Dayton Graduate School of Business and 14 years later a post graduate LL.M. law degree (Taxation) from the University of San Diego School of Law (1993.) Bill served in multiple business management functions, including General Counsel at Grumman Allied Industries, Inc., a New York diversified subsidiary of the Grumman Corporation, legally responsible for non-aerospace products, including aluminum truck bodies, canoes, fire trucks, and boats.
In 1986, with 20 years in the corporate world, Bill met retirement minimums and returned to California to begin private practice. Practicing with his two sons, Mike and Bob, Bill represented individuals and businesses in estate planning and probate matters, including bench and jury trials.
Fields Marked With An “*” Are Required
"*" indicates required fields
QUINN & DWORAKOWSKI, LLP
Irvine Concourse 2050 Main Street
Sixth Floor, Suite 600
Irvine, CA 92614
Copyright © 2026 Quinn & Dworakowski, LLP. All rights reserved.
*Images are obtained under license from Canva and other third-party stock image providers, with attribution included where required.
We use cookies to improve your experience on our site. By using our site, you consent to cookies.
Manage your cookie preferences below:
Essential cookies enable basic functions and are necessary for the proper function of the website.
CloudFlare provides web performance and security solutions, enhancing site speed and protecting against threats.
Service URL: developers.cloudflare.com (opens in a new window)
These cookies are needed for adding comments on this website.
Google reCAPTCHA helps protect websites from spam and abuse by verifying user interactions through challenges.
Google Tag Manager simplifies the management of marketing tags on your website without code changes.
Statistics cookies collect information anonymously. This information helps us understand how visitors use our website.
Google Analytics is a powerful tool that tracks and analyzes website traffic for informed marketing decisions.
Service URL: policies.google.com (opens in a new window)
Marketing cookies are used to follow visitors to websites. The intention is to show ads that are relevant and engaging to the individual user.
Facebook Pixel is a web analytics service that tracks and reports website traffic.
Service URL: www.facebook.com (opens in a new window)
Google Ads is an online advertising platform that enables businesses to create targeted ads displayed on Google search results and partner sites.
Service URL: policies.google.com (opens in a new window)
Google Maps is a web mapping service providing satellite imagery, real-time navigation, and location-based information.
Service URL: policies.google.com (opens in a new window)
You can find more information in our Privacy Policy and .
