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
Practices in
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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
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IP
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Litigation
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Trade Secrets
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White Collar
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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.
Pillsbury Winthrop Shaw Pittman LLP
2550 Hanover St.
Palo Alto, CA 94304
Open in Google MapsClient 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 reviewsHiring 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.
- Palo Alto4,084 attorneys
- Los Angeles39,975 attorneys
- San Francisco26,380 attorneys
- San Diego16,903 attorneys
- Sacramento10,561 attorneys
- Irvine6,831 attorneys
- Oakland5,709 attorneys
- San Jose5,009 attorneys
- Beverly Hills3,348 attorneys
- Newport Beach3,106 attorneys
- Pasadena2,894 attorneys
- Santa Monica2,756 attorneys
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