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Diane M. Johnsen

Phoenix, AZ

Trusted appellate attorney serving Phoenix.

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Quick answer

Diane M. Johnsen is an attorney based in Phoenix, ARIZONA. The practice focuses on Appellate, Business, and Environmental.

Based in
Phoenix, ARIZONA
Experience
attorney
Known for
Appellate · Business · Environmental
  • Handles Appellate, Business, and Environmental matters from Phoenix, ARIZONA.
  • Recognized with Lawyer of the Year — Appellate Practice (Phoenix) (2026).

About Diane M. Johnsen: Diane M. Johnsen is an attorney based in Phoenix, ARIZONA. The practice focuses on Appellate, Business, and Environmental.

Areas of practice

Practice focus

Diane M. Johnsen represents clients in Phoenix, Arizona across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About Diane M. Johnsen

Diane M. Johnsen is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Commercial Litigation and Environmental Law.

Diane M., who practices law in Phoenix, Arizona, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Diane M. is held by other top lawyers in the same geographic and legal practice area.

Credentials

Education

  • Duke University

    J.D. · 2016

Recognition

Awards & honors

  • Lawyer of the Year — Appellate Practice (Phoenix)

    2026

  • Best Lawyers in America — Appellate Practice

    2026

  • Best Lawyers in America — Commercial Litigation

    2026

  • Best Lawyers in America — Environmental Law

    2026

  • Best Lawyers in America — Special Focus:

    2026

  • Best Lawyers in America — Environmental

    2026

Locations

Office locations

Main office

2525 E. Camelback Road, Suite 500

Phoenix, Arizona 85016-4227

Open in Google Maps

Client feedback

Client reviews

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Frequently asked

Common questions

  • What areas of law does Diane M. Johnsen practice?

    Diane M. Johnsen focuses on Appellate, Business, Environmental, and Litigation.

  • Where is Diane M. Johnsen located?

    Diane M. Johnsen primarily serves clients in Phoenix, Arizona, with an office at 2525 E. Camelback Road, Suite 500.

  • Is Diane M. Johnsen a verified attorney?

    Diane M. Johnsen's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with Diane M. Johnsen?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 602-351-8000.