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

1,066 Profile Views

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Joel Kreiger

Jan 27, 2026

The absolute best in Palo Alto for Commercial Litigation law - and I mean that from the bottom of my heart

Short and sweet: Dianne L. Sweeney is the real deal and a true professional in the field of Commercial Litigation law. If you're in Palo Alto and need help with your legal issues, call them immediatel...

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Brenda Wintheiser

Jan 27, 2026

Highly recommend Dianne L. Sweeney for anyone needing expert Commercial Litigation law help in California

Short and sweet: Dianne L. Sweeney is the real deal and a true professional in the field of Commercial Litigation law. If you're in Palo Alto and need help with your legal issues, call them immediatel...

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Hazel Runolfsdottir

Jan 27, 2026

So happy with the results of my case thanks to the hard work of Dianne L. Sweeney and staff

If you're looking for someone who actually cares and will fight for you, go to Dianne L. Sweeney. They helped me out big time with my Commercial Litigation law issue and kept me informed at every step...

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Jimmy Hoeger

Jan 27, 2026

Top notch experts in Palo Alto - Dianne L. Sweeney is by far the best lawyer I've ever had

Dianne L. Sweeney is fantastic and very professional. Don't hesitate to hire them if you're in California and need help. They really know their stuff and will go the extra mile to make sure you're tak...

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Jaime Schinner

Jan 27, 2026

So happy with the results of my case thanks to the hard work of Dianne L. Sweeney and staff

Short and sweet: Dianne L. Sweeney is the real deal and a true professional in the field of Commercial Litigation law. If you're in Palo Alto and need help with your legal issues, call them immediatel...