Louis M. Diesel

Attorney Profile

Top Rated Personal Injury Attorney in Flagstaff, AZ

Aspey Watkins & Diesel PLLC
 | 123 North San Francisco Street, Suite 300
Flagstaff, AZ 86001
Phone: 928-433-6802
Fax: 928-774-8404
Selected to Super Lawyers: 2007
Licensed Since: 1973
Practice Areas:
  • Personal Injury - General: Plaintiff
Attorney Profile

As a partner at Aspey, Watkins, & Diesel, Attorneys-at-Law, P.L.L.C., Louis M. Diesel serves clients across Arizona. He focuses his practice on plaintiff's personal injury litigation, ranging from motor vehicle accidents to workplace injuries and premises liability, including serious slip-and-fall incidents. He also handles medical malpractice claims and wrongful death litigation.

Mr. Diesel earned his Bachelor of Science with high distinction from Northern Arizona University in 1970. He went on to receive his Juris Doctor in 1973 from what was then known as the Arizona State University College of Law. He additionally earned a Master of Science in 1975 from Arizona State University. While in law school, he worked on the Arizona State Law Journal.

Mr. Diesel became licensed to practice law in the state of Arizona in 1973. He is additionally admitted to practice before the U.S. District Court for the District of Arizona, the U.S. Court of Appeals for the 9th Circuit and the Supreme Court of the United States.

In order to remain up-to-date with current developments in his practices, Mr. Diesel is an active participant in numerous legal organizations. He is a member of the American Bar Association, the Arizona Association for Justice, the Coconino County Bar Association, and the American Association for Justice. He is also a founding fellow of the Arizona Bar Foundation. He is a co-author of the Arizona Motor Vehicle Accident Deskbook and has also lectured across the state regarding personal injury litigation. Recognized for his ethics and skill, Mr. Diesel has earned the rating of AV Preeminent* from his peers through Martindale-Hubbell.

*AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review Rating™ fall into two categories – legal ability and general ethical standards.

Practice Areas
Lawyer Practice Area Pie Chart

Personal Injury - General (100%): Motor Vehicle Accidents, Personal Injury - Plaintiff, Slip and Fall, Wrongful Death, Premises Liability - Plaintiff

Focus Areas

Motor Vehicle Accidents, Personal Injury - Plaintiff, Slip and Fall, Wrongful Death, Premises Liability - Plaintiff


Selected to Super Lawyers for 1 yearsbottom-image

Super Lawyers: 2007

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About Louis Diesel

Admitted: 1973, Arizona

Professional Webpage: https://www.awdlaw.com/attorney/louis-m-diesel/


  • Arizona’s Finest Lawyers, Sustaining Member
  • Super Lawyers®, 2007
  • Martindale Hubbell® AV® PreeminentTM

Bar/Professional Activity:

  • State Bar of Arizona
  • American Association for Justice, Member
  • Arizona Trial Lawyers Association, Member
  • American Bar Association, Member
  • Coconino County Bar Association, Member
  • U.S. Supreme Court, 1978
  • U.S. Court of Appeals – Ninth Circuit, 1974
  • U.S. District Court – District of Arizona, 1973
  • Supreme Court of Arizona, 1973

Pro bono/Community Service:

  • Arizona Bar Foundation, Founding Fellow

Scholarly Lectures/Writings:

  • Co-Author, Arizona Motor Vehicle Accident Deskbook

Educational Background:

  • Northern Arizona University, Flagstaff, Arizona, B.S., with High Distinction (top 5%), 1970
  • Arizona State University, Tempe, Arizona, M.S., 1975
Find Me Online
Website - www.awdlaw.com
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Office Location for Louis M. Diesel

123 North San Francisco Street
Suite 300
Flagstaff, AZ 86001

Phone: 928-433-6802

Fax: 928-774-8404

Louis M. Diesel:

Last Updated: 8/30/2017

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