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

1,061 Profile Views

Terri O'Hara

Jan 27, 2026

Absolutely Great! I couldn't be happier with the service from Dianne L. Sweeney

Super helpful and professional staff at Dianne L. Sweeney's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and legal...

Caroline Herzog

Jan 27, 2026

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

I was really stressed about my case in Palo Alto, but Dianne L. Sweeney made everything so smooth and stress-free. Seriously, the best decision I've made lately was hiring them. They handled every det...

Annette Rowe-Toy

Jan 27, 2026

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

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...

Rex Bruen

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...

Edwin Strosin

Jan 27, 2026

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

I've already told all my friends and family about Dianne L. Sweeney. If you need Commercial Litigation law help in California, they're the ones to see without any doubt. They are local experts who rea...