Dianne L. Sweeney

4.6 (40 reviews )

Palo Alto California United States

Commercial Litigation

Recognized in Best Attorney USA since 2022

650-233-4500 Website

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.

Practice Areas

Commercial Litigation

Education

Santa Clara University

Awards & Recognition

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Reviews

4.6 / 5

40 Reviews

1,062 Profile Views

Gloria Kertzmann

Jan 27, 2026

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

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...

Paula Jaskolski

Jan 27, 2026

Reliable lawyer you can count on - Dianne L. Sweeney provided excellent service throughout

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...

Laverne Dach

Jan 27, 2026

Solid work and professional service from Dianne L. Sweeney in Palo Alto for California residents

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...

Josh Feil

Jan 27, 2026

Excellent legal representation provided by Dianne L. Sweeney for my Commercial Litigation law case

Really glad I found Dianne L. Sweeney for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're in...

Boyd Fritsch

Jan 27, 2026

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

Honestly, I can't thank Dianne L. Sweeney enough for everything they've done for me. They really know their stuff when it comes to Commercial Litigation law and it shows in the results. 10/10 would re...