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Jon is a partner at O'Steen MacLeod Combs. He joined the firm in 2005 and practices in the areas of personal injury, car accidents, truck accidents, motorcycle accidents, contaminated food, legal malpractice, insurance bad faith, and defective products.
He graduated from Occidental College in 2002 (B.A., Economics and Political Science) and the Arizona State University College of Law in 2005 (J.D., cum laude). He served as Senior Articles Editor of the Arizona State Law Journal and was a Willard H. Pedrick Scholar.
Jon has been named to the Super Lawyers Top 50 list for Arizona and Best Lawyers in America. He is av-rated (the highest rating) by the prestigious Martindale-Hubbell Law Directory.
Jon is a past President for the Arizona Association for Justice (formerly the Arizona Trial Lawyers Association). He also is a member of Board of Governors of the American Association for Justice.
He was admitted to the State Bar of Arizona in 2005. Jon is admitted to practice in the Supreme Court of Arizona, the United States District Court (District of Arizona) and the U.S. Court of Appeals for the Ninth Circuit.
Jon is a native of Arizona, having been born in Phoenix in 1980. He lives in Phoenix with his wife Kathryn and their two children.
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Chat withState: Arizona
Acquired: 2005
No misconduct found
300 W Clarendon Ave., Suite 400, Phoenix, AZ, 85013
136 Grove Ave., Suite 104, Prescott, AZ, 86301
Showing 1 - 4 of 4 client reviews from Avvo
Posted by Stacey | September 7, 2025 | Hired Attorney
The Osteen office completely failed us and destroyed our chance at justice. Especially Matt Macleod . We brought them a medical malpractice case that involved a clear never event — the kind of case that should have been strong and winnable. Instead, they dragged their feet for 18 months just to get m...
Posted by Daniel | January 9, 2020 | Hired Attorney
I worked with attorney Jon O’Steen on a recent case. He was always on top of things and would respond to me in a timely manner. He got a great result in my case and I was extremely pleased with the outcome. More than the result, I felt like he truly cared and took time to address my concerns and expl...
Posted by Brooklyn | July 9, 2019 | Hired Attorney
A member of our family was in a terrible automobile accident. After it became apparent that we would need legal help, we began consulting with attorneys. We chose to work with Jon O’Steen because he seemed to be the most knowledgeable about the specific complexities of our situation. As the case prog...
Posted by anonymous | January 2, 2019 | Hired Attorney
I found him unprofessional in how he responded to me and it took extended time to get a response and many times you had to ask questions over and over to get an answer. He has technical knowledge but his communication, diligence and stsying on point for the client is very lacking. I had to stay on de...
"Jon is an outstanding lawyer with a great reputation. I have referred cases to Jon and also had the pleasure of working together with him on a case involving a joint client. He is a tireless advocate for his clients and has a sharp and analytical mind. I would not hesitate to send, family, friends, or clients to Jon for representation in the future."
"Jon is an outstanding personal injury attorney: smart, aggressive, hard-working, and absolutely committed to obtaining justice for his clients. I endorse him wholeheartedly for any plaintiff's personal injury, product defect, wrongful death, or accident case."
"Jon possesses the knowledge, passion, and dedication to obtain consistently favorable results for his clients. I endorse him."
"I endorse this lawyer. Jon is a great attorney and highly dedicated to helping his clients resolve tough circumstances."
"I was in a clinic in law school with Jon and he was a stellar advocate then and the same can be said now. I endorse this lawyer."
"I have known Jon for years. My firm has referred several personal injury cases to Jon over the years. Jon has an outstanding reputation in the valley as first class plaintiff's personal injury lawyer. In addition to serious accident injury cases, Jon also handles complex medical malpractice cases. I would not hesitate to recommend Jon to any prospective clients."
"I endorse this lawyer. Jon is a dedicated and enthusiastic advocate. He knows the law well and goes the extra mile. He is a fine attorney and has my endorsement."
"I have been lucky to watch Jon work over the past few years. Not only is he a very bright attorney, he has the tenacity of a lion. His combination of hard work and perseverance serves his clients very well."
"Jon O'Steen brings energy and passion to the practice of law. I am sure his clients feel that energy as well, and they clearly benefit from it. He is more than willing to take a case to court, but his judgment is sound enough to know when litigation is ill-advised. An excellent lawyer."
"Attorney O'Steen is among the top in his field in educating clients and potential clients of the importance of being "prepared for the worst" when it comes to automobile accidents. His guides on streamlining your auto insurance and accident checklist are must-reads if you are in his jurisdiction. People don't plan to fail, they fail to plan...The information provided by Jonathan on his site will help you plan for the best possible result, should the unfortunate happen to you."
"It has been my pleasure to work with Jon since 2007. He is passionate about his work and has excellent skills in research, writing, and verbal persuasion."
"I endorse this lawyer. He is extremely professional, pays attention to detail and, most importantly, puts the needs of each of his clients at the top of his list of professional priorities."
"Jonathan O'Steen is an extremely diligent and aggressive attorney who will not compromise his integrity in preparing the best case on behalf of his clients. He is exceptional in his research skills and preparation for the most effective cross examinations I have encountered."
"I endorse this lawyer. I have known Jon for many years. He is bright and effective, having achieved excellent results for his clients."
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2023
Top 50 Lawyers in Arizona, Super Lawyers
2020
AV Preeminent Rated, Martindale-Hubbell
2020
Super Lawyers, Super Lawyers
2020
Best Lawyers in America, U.S. News and World Report
2019
Super Lawyers, Super Lawyers
2019
Best Lawyers in America, U.S. News and World Report
2019
AV Preeminent Rated, Martindale-Hubbell
2018
AV Rated, Martindale-Hubbell
2018
Best Lawyers in America, U.S. News and World Report
2018
Super Lawyers, Super Lawyers
2017
Super Lawyers, Super Lawyers
2017
AV Rated, Martindale-Hubbell
2017
Best Lawyer, Best Lawyers in America
2016
AV Rated, Martindale-Hubbell
2016
Best Lawyer, Best Lawyers in America
2016
Super Lawyer, Super Lawyers
2015
Best Lawyers in America, Best Lawyers
2015
AV Rated, Martindale-Hubbell
2015
Super Lawyer, Super Lawyers
2014
AV Rated, Martindale-Hubbell
2014
Rising Star, Super Lawyers
2013
AV Rated, Martindale-Hubbell
2013
Rising Star, Super Lawyers
2012
Top 100 Trial Lawyers, The National Trial Lawyers
2012
Top 40 Under 40, The National Trial Lawyers
2012
Rising Star, Super Lawyers
2005
Cum Laude, Arizona State University College of Law
2005
High Pro Bono Distinction, Arizona State University College of Law
2004
Willard H. Pedrick Scholar, Arizona State University College of Law
2025 - Present
Partner, O'Steen MacLeod Combs PLC
2005 - Present
Partner, O'Steen & Harrison, PLC
2011 - 2014
Judge Pro Tem, Maricopa County Superior Court
2019 - Present
Arizona Association for JusticePresident-Elect
2018 - Present
Arizona Association for JusticeSecretary
2011 - Present
Fee Arbitration Committee, State Bar of ArizonaArbitrator/Committee Member
2011 - Present
Maricopa County Bar AssociationMember
2005 - Present
Arizona Trial Lawyers AssociationDirector
2005 - Present
American Association for JusticeMember
2005 - Present
State Bar of ArizonaMember
2019 - 2019
Arizona Association for JusticeVice President
2017 - 2018
Arizona Association for JusticeTreasurer
2004 - 2005
Arizona State Law JournalSenior Articles Editor
2003 - 2004
Arizona State Law JournalStaff Writer
$350,000 Jury Verdict
$1.25 million settlement
Settled for $350,000.00
Settled for $515,000.00
Settled for $450,000.00
2005
JD - Juris Doctor
2002
BA - Bachelor of Arts
2020
Make it a Priority: Who Goes First?
2019
Back to the Basics: Negotiating Reductions of Federal Liens
2019
Liens: The Good, The Bad and The Ugly
2018
Medicare: From Portals Through Appeals
2018
Medicare Liens Simplified
2017
Gaining an Advantage on Medicare Liens
2016
AHCCCS Granted: Securing Successful Resolutions of Medicaid Liens
2016
Polarizing the Case
2016
Putting it All Together at Trial
2015
Medicare Redux: A Trial Lawyer's Guide to the Super Lien
2015
Ethical Considerations in Personal Injury Cases
2014
Everything ERISA
2013
Filing a Dec Action Against an ERISA Entity
2011
Sealing Their Fate (Mass Tort Litigation)
2006
2006
2005
2004
English
Legal Answers
Legal Guides
In AZ, does the claimants attorney get information about the at fault parties limits?
24 Aug 2011
What type of penalty will I get from driving with a permit and involved in an accident?
13 Jun 2011