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William D. Furnish, Business Attorney in Phoenix, Arizona

Over 16 years of legal practice · focused on Business, General, and Litigation

Phoenix, AZ

Practicing business in Phoenix since 2010.

16+
Years practicing
2
Bar admissions

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William D. Furnish is an attorney based in Phoenix, ARIZONA. The practice focuses on Business, General, and Litigation. William has over 16 years of legal experience.

Based in
Phoenix, ARIZONA
Experience
over 16 years
Known for
Business · General · Litigation
  • Handles Business, General, and Litigation matters from Phoenix, ARIZONA.
  • Over 16 years of practice as a licensed attorney.
  • Recognized with Best Lawyers in America — Commercial Litigation (2026).

About William D. Furnish: William D. Furnish is an attorney based in Phoenix, ARIZONA. The practice focuses on Business, General, and Litigation. William has over 16 years of legal experience.

Areas of practice

Legal matters William takes on

William concentrates on business, general, and litigation. Each area below outlines the kind of case William handles, typical outcomes to expect, and how the intake process starts.

Business cases in Phoenix, Arizona

William takes business matters in Phoenix, Arizona. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.

General cases in Phoenix, Arizona

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

Litigation cases in Phoenix, Arizona

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

Biography

Meet William D. Furnish — business lawyer in Phoenix

William D. Furnish is an attorney based in Phoenix, ARIZONA. The practice focuses on Business, General, and Litigation. William has over 16 years of legal experience.

William Furnish has become a rising star in business litigation, lending his knowledge on cybersecurity, privacy and data security matters to businesses across a varied set of industries. As a litigator, William focuses on professional liability, complex commercial litigation, and privacy and data security matters. He excels at the intellectual, ethical challenges that arise between data privacy and attorney ethical violations and has established himself as a thought-leader in the ethical overlay between attorney privilege and data privacy and ethics violations.

Of his most recent accomplishments, William provided counsel to the Arizona Attorney General in groundbreaking litigation regarding a law that allowed automobile dealers to access essential and sensitive customer data. He has extended his knowledge on ethics violations to a varied set of industries, including accountants, attorneys, healthcare professionals dealing with nuanced questions surrounding malpractice, securities and privacy.

Prior to joining Osborn Maledon, William was a litigation and trial associate with a firm in New York, where he advised and represented Big Four accounting firms, pharmaceutical manufacturers and other institutional clients in connection with securities, professional liability, intellectual property and commercial litigation. A skilled writer and presenter, William has written articles for a number of publications and spoken on data breaches and cybersecurity.

William has also dedicated a significant portion of his professional life to volunteer service, including spending two years as a Peace Corps volunteer in the Republic of Armenia, serving as President of the Phoenix Public Library Foundation, and providing pro bono representation to asylum seekers and homeless youth.

Working with William on a business matter

William Furnish has become a rising star in business litigation, lending his knowledge on cybersecurity, privacy and data security matters to businesses across a varied set of industries. As a litigator, William focuses on professional liability, complex commercial litigation, and privacy and data security matters. He excels at the intellectual, ethical challenges that arise between data privacy…

Clients William works with

William reviews new inquiries case-by-case for business, general, and litigation matters in Phoenix and the surrounding Arizona area.

Credentials

Education, bar admissions, and languages

  • The University of Arizona

    J.D. · 2009

  • Dartmouth College

    — · 2002

Jurisdictions

William's state bar admissions

  • Arizona

    2011 · ACTIVE

  • New York

    2010 · ACTIVE

William studied at J.D. in The University of Arizona and — in Dartmouth College.

Law school and academic background

William completed J.D. in The University of Arizona and — in Dartmouth College. Formal legal training is one signal of substantive knowledge — the day-to-day practice William runs in Arizona is where that training gets applied to real client questions.

Recognition

Recognition and thought leadership

William has received 13 formal recognitions from bar associations, industry bodies, and peer-review services.

  • Best Lawyers in America — Commercial Litigation

    2026

  • Best Lawyers in America — Ethics and Professional Responsibility Law

    2026

  • Best Lawyers in America — in America

    2026

  • Best Lawyers in America — from 2021-2021 for work in:

    2026

  • Best Lawyers in America — Commercial Litigation - 2021

    2026

  • Best Lawyers in America — Additional Areas of Practice:

    2026

  • Best Lawyers in America — Privacy and Data Security Law

    2026

  • Best Lawyers in America — Awards:

    2026

  • Best Lawyers in America — Southwest Super Lawyers,

    2026

  • Best Lawyers in America — “Rising Star”, Business Litigation, 2020

    2026

  • Best Lawyers in America — Arizona State Bar Foundation,

    2026

  • Best Lawyers in America — “Top 50 Pro Bono Attorney”

    2026

  • Best Lawyers in America — , 2023

    2026

Legal awards and honors

Best Lawyers in America — Commercial Litigation (2026). Best Lawyers in America — Ethics and Professional Responsibility Law (2026). Best Lawyers in America — in America (2026). Best Lawyers in America — from 2021-2021 for work in: (2026). Best Lawyers in America — Commercial Litigation - 2021 (2026). Best Lawyers in America — Additional Areas of Practice: (2026).

Locations

William D. Furnish's office in Phoenix

William's primary office is at 2929 North Central Avenue, Suite 2000, Phoenix, Arizona, 85012-2793. In-person meetings are by appointment; a phone intake usually comes first.

Main office

2929 North Central Avenue, Suite 2000

Phoenix, Arizona 85012-2793

Open in Google Maps

Client feedback

Client reviews of William D. Furnish

William has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.

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Hiring guide

How to hire William D. Furnish — what to expect in your first consultation

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

Consultation formats and pricing

William charges for the initial consult. That fee is credited toward representation if you retain William'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; William will tell you what matters and what doesn't.

Questions to ask a business attorney in Phoenix, Arizona

A short list to run through before you commit: How many business 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 William

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

Hourly rates, contingency fees, and flat-fee options

Every business 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. William confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

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

Frequently asked

Frequently asked questions about William D. Furnish

  • How much does it cost to hire William for a business case?

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

  • Does William offer a free consultation?

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

  • How long do business cases in Arizona typically take?

    Simple business 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. William gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can William take my case if I'm outside Phoenix?

    William is licensed in Arizona. Matters governed by Arizona law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — William 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 William?

    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. William will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is William accepting new business clients right now?

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

Areas served

Business attorneys serving Phoenix, Tucson and Scottsdale in Arizona

William handles business matters throughout Arizona. Each city below is a direct link into the search page for verified business attorneys in that community.

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