John (Jack) D. Wilenchik

Attorney Profile

Top Rated General Litigation Attorney in Phoenix, AZ

Wilenchik & Bartness PC
 | 2810 North Third Street, Phoenix, AZ 85004
Phone: 602-606-2810
Fax: 602-606-2811
Selected To Rising Stars: 2018 - 2019
Licensed Since: 2012
Practice Areas:
  • General Litigation (20%),
  • Civil Litigation: Plaintiff (20%),
  • Business Litigation (20%),
  • Appellate (20%),
  • Civil Rights (10%),
  • Criminal Defense (10%)
Languages Spoken:
  • English,
  • Hebrew,
  • Chinese-Mandarin,
  • Italian,
  • Spanish
Attorney Profile

John “Jack” Wilenchik is a litigation and trial lawyer who handles cases in areas including business and employment law, civil rights, law enforcement, victim’s rights matters, and tax audits/deficiencies. He has been named to the national Superlawyers list of “Top Rated Attorneys” by Thomson Reuters. In 2018, he obtained the largest jury verdict in Mohave County history (at $8 million, including $1.77 million in punitive damages), which currently stands as the largest punitive damages verdict for the state of Arizona this year (and the second largest jury verdict overall). In 2017, he was the first person to be contacted by the White House with the news that President Trump had issued his first pardon, to Sheriff Joe Arpaio. Mr. Wilenchik practices in all Arizona state and federal courts, the Ninth and Tenth Circuit Court of Appeals, the United States Supreme Court, and United States Tax Court. Some of his more notable cases have included:

Mr. Wilenchik is committed to charity and pro bono work, both in his personal and professional life. He has taken on various cases and causes over the years on a pro bono basis, including a unique case on behalf of a child victim that reached the United States Supreme Court. In late 2016, Mr. Wilenchik authored a bill to protect child victims that was introduced to the Senate by United States Senators Jeff Flake (R-AZ) and Dianne Feinstein (D-CA) as co-sponsors. He has served as a volunteer attorney for the National Association for the Advancement of Colored People, the Rutherford Institute, and the Goldwater Institute, as well as a liaison and special advisor to the Maricopa County Community Legal Services Volunteer Lawyers Program. Mr. Wilenchik has also served as a regular volunteer for the Wills for Heroes program, which prepares wills for law enforcement and first responders. Less than one week after taking the bar exam, Mr. Wilenchik donated a kidney to his mother, Becky Bartness. 

Mr. Wilenchik has hosted and co-produced several radio shows, including the “Legal-ease” and “Ripoff Report” radio shows, which aired for years on KFNX 1100 AM. Mr. Wilenchik is conversant in Spanish, and his wife (who was born and raised in Guanajuato, MX) also assists as a Spanish interpreter. Mr. Wilenchik studied Italian, Mandarin Chinese, and Hebrew at New York University, and he lived for two years abroad (in Italy and Scotland, UK). He is the son of Wilenchik & Bartness founders Dennis Wilenchik and Becky Bartness and he has two daughters, named Jean and Shirley, both born in Phoenix, AZ.

Practice Areas

General Litigation (20%)
Civil Litigation: Plaintiff (20%)
Business Litigation (20%)
Appellate (20%)
Civil Rights (10%)
Criminal Defense (10%)

General Litigation (20%): Litigation, Restraining Order

Civil Litigation (20%)

Business Litigation (20%): Trade Secret, Non-Compete Agreements

Appellate (20%): Appeals

Civil Rights (10%): Americans with Disabilities Act, Police Misconduct, Discrimination, Native Peoples Law

Criminal Defense (10%): Criminal Law, False Accusations

Focus Areas

Litigation, Restraining Order, Trade Secret, Non-Compete Agreements, Appeals, Americans with Disabilities Act, Police Misconduct, Discrimination, Native Peoples Law, Criminal Law, False Accusations


top-imageSelected to Rising Stars for 2 years

Rising Stars: 2018 - 2019

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To: John (Jack) D. Wilenchik
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About John Wilenchik

Admitted: 2012, Arizona

Professional Webpage:


  • For Love of Justice Pro Bono Award, Volunteer Lawyers Program, 2014

Bar/Professional Activity:

  • Gila River Indian Community Court, 2015
  • United States Supreme Court
  • Tenth Circuit Court of Appeals
  • Ninth Circuit Court of Appeals
  • United States Tax Court
  • Arizona

Pro bono/Community Service:

  • Volunteer Attorney with the American Freedom Network (Goldwater Institute), 2018
  • Liaison and Special Advisor, Community Legal Services Volunteer Lawyers Program, 2014
  • Volunteer Attorney, National Association for the Advancement of Colored People, 2014
  • Affiliate Attorney, Rutherford Institute


  • Trabucco v. Cogan, et al. (2018) - Mohave County jury unanimously awarded the largest verdict in county history, at $8 million (including $1.768 million in punitive damages), after one hour of deliberation. Largest punitive damages verdict statewide this year, and the second-largest verdict overall (so far)., 2018
  • J.D. v. Chris Simcox, Hon. Jose Padilla, 2015
  • State v. Flake (the "Gilbert 23" criminal defense case), 2014
  • State of Arizona v. Sussex (the "Tempe Squatter" case), 2012

Representative Clients:

  • Sheriff Joe Arpaio, 2017
  • Former Attorney General Tom Horne, 2017

Other Outstanding Achievements:

  • Cohosted and coproduced "Legal-ease" for two years, a weekly radio show on KFNX 1100 AM on legal topics., 2011
  • Cohost of RipoffReport Radio Show
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Office Location for John (Jack) D. Wilenchik

2810 North Third Street
Phoenix, AZ 85004

Phone: 602-606-2810

Fax: 602-606-2811

John (Jack) D. Wilenchik:

Last Updated: 11/9/2018

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