Founded in 1991 by Dennis Wilenchik and Becky Bartness, the law firm of Wilenchik and Bartness provides high level litigation services to a select group of clients. Since founding the firm, they have been joined by a team of highly skilled and aggressive, experienced litigators, including their son John “Jack” Wilenchik.  

Dennis Wilenchik is rated Martindale-Hubbell AV®-Preeminent™, the highest rating available under the Martindale Hubbell rating system, and he is listed in the national Bar Register of Preeminent Lawyers. Mr. Wilenchik is a member of AZ Finest Lawyers and a fellow of the American Bar Foundation. In addition, Dennis is a nationally certified civil trial and civil practice advocate with the National Board of Trial Advocacy and is licensed in all Arizona and Texas state and federal courts, New York state courts, the Ninth Circuit Court of Appeals and the United States Supreme Court.

Becky Bartness is rated Martindale-Hubbell AV®-Preeminent™ and is listed in the Bar Register of Preeminent Women Lawyers. She was a real estate specialist for over 15 years and also practices commercial arbitration and mediation. Ms. Bartness is licensed to practice law in all Arizona state and federal courts and the Ninth Circuit.

Jack Wilenchik has been consistently named to the national Superlawyers list of “Top Rated Attorneys” by Thomson Reuters. In 2018, he obtained the largest jury verdict in the history of Mohave County at eight million dollars, including nearly two million in punitive damages (and the largest verdict of any Arizona attorney that year). He has handled a number of high-profile matters over the years for clients throughout the state and is licensed to practice 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.

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