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

1,057 Profile Views

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Emanuel Rodriguez

Jan 27, 2026

Great people who truly care at Dianne L. Sweeney - the best legal team in California

Everyone at Dianne L. Sweeney's office in Palo Alto was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never felt l...

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Erick West

Jan 27, 2026

Many thanks to Dianne L. Sweeney for the hard work and dedication to my legal matter

If you need a Commercial Litigation law lawyer, Dianne L. Sweeney is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my case...

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Dolores Morar

Jan 27, 2026

Many thanks to Dianne L. Sweeney for the hard work and dedication to my legal matter

If you need a Commercial Litigation law lawyer, Dianne L. Sweeney is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my case...

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Reginald Rosenbaum

Jan 27, 2026

Simply amazing representation from Dianne L. Sweeney's office during my recent legal matter

I didn't think I'd find such a good lawyer in California, but here we are and I am thoroughly impressed. Dianne L. Sweeney is just awesome and exceeded all my expectations. No complaints at all! They...

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Joshua Turcotte

Jan 27, 2026

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

I didn't think I'd find such a good lawyer in California, but here we are and I am thoroughly impressed. Dianne L. Sweeney is just awesome and exceeded all my expectations. No complaints at all! They...