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Dianne Leigh Sweeney, General Attorney in Palo Alto, California

Over 30 years of legal practice · focused on General, IP, and Litigation · 5.0/5 rating from 3 verified client reviews

Senior AssociateatPillsbury Winthrop Shaw Pittman LLP

Palo Alto, CA

Practicing general in Palo Alto since 1996.

30+
Years practicing
5.0 ★
3 client reviews
1
Bar admission

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Quick answer

Dianne Leigh Sweeney is a senior associate based in Palo Alto, CA. The practice focuses on General, IP, and Litigation. Dianne has over 30 years of legal experience. Currently practicing at Pillsbury Winthrop Shaw Pittman LLP. Rated 5.0 out of 5 from 3 client reviews.

Based in
Palo Alto, CA
Experience
over 30 years
Known for
General · IP · Litigation
  • Handles General, IP, and Litigation matters from Palo Alto, CA.
  • Over 30 years of practice as a licensed attorney.
  • Recognized with Peer Reviewed.

About Dianne Leigh Sweeney: Dianne Leigh Sweeney is a senior associate based in Palo Alto, CA. The practice focuses on General, IP, and Litigation. Dianne has over 30 years of legal experience. Currently practicing at Pillsbury Winthrop Shaw Pittman LLP. Rated 5.0 out of 5 from 3 client reviews.

Areas of practice

Dianne's practice areas in Palo Alto

Dianne concentrates on general, ip, litigation, trade secrets, and white collar. Each area below outlines the kind of case Dianne handles, typical outcomes to expect, and how the intake process starts.

General cases in Palo Alto, California

Dianne takes general matters in Palo Alto, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dianne agrees to represent you.

IP cases in Palo Alto, California

Dianne takes ip matters in Palo Alto, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dianne agrees to represent you.

Litigation cases in Palo Alto, California

Dianne takes litigation matters in Palo Alto, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dianne agrees to represent you.

Trade Secrets cases in Palo Alto, California

Dianne takes trade secrets matters in Palo Alto, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dianne agrees to represent you.

White Collar cases in Palo Alto, California

Dianne takes white collar matters in Palo Alto, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dianne agrees to represent you.

Biography

Dianne Leigh Sweeney, general attorney serving Palo Alto

Dianne Leigh Sweeney is a senior associate based in Palo Alto, CA. The practice focuses on General, IP, and Litigation. Dianne has over 30 years of legal experience. Currently practicing at Pillsbury Winthrop Shaw Pittman LLP. Rated 5.0 out of 5 from 3 client reviews. Dianne works from Palo Alto, California and takes on general matters across the region.

Dianne Leigh Sweeney is a lawyer practicing litigation, antitrust and competition, corporate investigations and white collar defense and 6 other areas of law. Dianne received a B.S. degree from Santa Clara University in 1991, and has been licensed for 30 years. Dianne practices at Pillsbury Winthrop Shaw Pittman LLP in Palo Alto, CA.

Working with Dianne on a general matter

Dianne Leigh Sweeney is a lawyer practicing litigation, antitrust and competition, corporate investigations and white collar defense and 6 other areas of law. Dianne received a B.S. degree from Santa Clara University in 1991, and has been licensed for 30 years. Dianne practices at Pillsbury Winthrop Shaw Pittman LLP in Palo Alto, CA.

Who Dianne represents

Dianne reviews new inquiries case-by-case for general, ip, and litigation matters in Palo Alto and the surrounding California area.

Credentials

Credentials — where Dianne studied and practices

  • Santa Clara University School of Law

    J.D. · 1996

  • Santa Clara University

    B.S. · 1991

Jurisdictions

Dianne's state bar admissions

  • California U.S. Dist

    1996 · ACTIVE

Dianne studied at J.D. in Santa Clara University School of Law and B.S. in Santa Clara University.

Law school and academic background

Dianne completed J.D. in Santa Clara University School of Law and B.S. in Santa Clara University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Dianne runs in California is where that training gets applied to real client questions.

Recognition

Dianne's legal honors and published work

Dianne has received 1 formal recognition from bar associations, industry bodies, and peer-review services.

  • Peer Reviewed

Legal awards and honors

Peer Reviewed.

Locations

Dianne Leigh Sweeney's office in Palo Alto

Dianne's primary office is at 2550 Hanover St., Palo Alto, CA, 94304. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Pillsbury Winthrop Shaw Pittman LLP

2550 Hanover St.

Palo Alto, CA 94304

Open in Google Maps

Client feedback

Client reviews of Dianne Leigh Sweeney — 5.0/5 rating from 3 verified client reviews

Every review below is from a verified client of Dianne. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing general attorneys in Palo Alto.

5.0

3 client reviews

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Dianne Leigh Sweeney claims this profile.

Read all reviews

Hiring guide

How to hire Dianne Leigh Sweeney — what to expect in your first consultation

Working with a new general attorney should feel structured. Here's how the first two conversations with Dianne usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Dianne charges for the initial consult. That fee is credited toward representation if you retain Dianne's office.

What to bring to your first meeting

Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Dianne will tell you what matters and what doesn't.

Questions to ask a general attorney in Palo Alto, California

A short list to run through before you commit: How many general matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?

Fees & payment

Fees, payment methods, and consultation options for Dianne

Dianne discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in general practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every general matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Dianne confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Dianne's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many general practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Dianne Leigh Sweeney

  • How much does it cost to hire Dianne for a general case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Dianne walks through the likely range during the consult so there are no surprises.

  • Does Dianne offer a free consultation?

    Dianne charges for the initial consult; that fee is credited toward representation if you retain Dianne's office. Some general attorneys offer free consults — check Dianne's current terms during booking.

  • How long do general cases in California typically take?

    Simple general matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Dianne gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Dianne take my case if I'm outside Palo Alto?

    Dianne is licensed in California. Matters governed by California law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Dianne will tell you if the case is a fit or refer you to someone closer to your court.

  • What should I bring to my first meeting with Dianne?

    Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Dianne will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Dianne accepting new general clients right now?

    Dianne's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

General attorneys serving Palo Alto, Los Angeles and San Francisco in California

Dianne handles general matters throughout California. Each city below is a direct link into the search page for verified general attorneys in that community.

More counsel

If Dianne's intake is full or the fit isn't right, these general attorneys in Palo Alto handle similar matters. Every profile below is verified and open to consultations.