Dianne L. Sweeney

Dianne L. Sweeney

Commercial Litigation
Recognized in Best Attorney USA since 2022

About Dianne

Dianne L. Sweeney: Top Attorney in Commercial Litigation Practice Area

Dianne L. Sweeney is a top attorney recognized by Best Attorney USA in the practice area of Commercial Litigation. She practices law in Palo Alto, California, and has been recognized since 2022 based on an exhaustive peer-review survey that reflects her high esteem among other top lawyers in the same geographic and legal practice area.

Practice Areas

  • Commercial Litigation

Awards

  • Recognized: Commercial Litigation, Practice Area: Litigation and Controversy - Tax, Recognized Since: 2022

Firms

  • Pillsbury, Current Law Firm

Affiliations

  • Recognized in Best Attorney USA since 2022

Location: City: Palo Alto
State: California
Country: United States

Education & Credentials

  • Universities: Santa Clara University, Graduated with Honors in Juris Doctorate (J.D.)
    • Drafted and argued several landmark cases for the Supreme Court of California. Served as a legal advisor to numerous start-up businesses.

Bar Admissions

  • California, United States (2018)
  • Certified in Federal Court Practice (2015)

Languages:

  • English - Primary Language
    Spanish - Fluent for immigration and international clients.

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Reviews

4.6 / 5

40 Reviews

1,064 Profile Views

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Tony Beatty

Jan 27, 2026

So glad I called Dianne L. Sweeney to handle my Commercial Litigation law case in Palo Alto

Just wanted to say a huge thanks to Dianne L. Sweeney and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it without their...

J

Julian Funk

Jan 27, 2026

Professional service and clear communication provided by Dianne L. Sweeney in Palo Alto

Needed help with Commercial Litigation law and Dianne L. Sweeney delivered on their promises. They're professional, efficient, and easy to talk to. Good choice for anyone in California looking for hig...

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Sergio Gutkowski

Jan 27, 2026

A very good experience overall with the entire team at Dianne L. Sweeney's legal practice

Needed help with Commercial Litigation law and Dianne L. Sweeney delivered on their promises. They're professional, efficient, and easy to talk to. Good choice for anyone in California looking for hig...

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Vera Braun

Jan 27, 2026

Dianne L. Sweeney did a great job handling my complex Commercial Litigation law case from start to finish

Needed help with Commercial Litigation law and Dianne L. Sweeney delivered on their promises. They're professional, efficient, and easy to talk to. Good choice for anyone in California looking for hig...

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Cristina Reynolds

Jan 27, 2026

A very good experience overall with the entire team at Dianne L. Sweeney's legal practice

Solid experience overall with the law firm of Dianne L. Sweeney. They know Commercial Litigation law inside and out and gave me great advice. Very helpful and got the job done exactly as they said the...