About Us

Established in 2017, the attorneys of Zahn & Deal came from the law firm of Voyles Zahn & Paul, one of the most preeminent law firms in the state of Indiana. The attorneys at Zahn & Deal had been practicing at Voyles Zahn & Paul for decades before forming Zahn & Deal.

The Attorneys

Dennis Zahn

Dennis Zahn, a life-long resident of the Indianapolis area, is a graduate of Cathedral High School. He graduated with a Bachelor of Arts degree from Marian College and received his JD degree from Indiana University School of Law in Indianapolis.

Zahn has been a criminal defense litigator in both Federal and State Courts since being admitted to the bar in 1968. He concentrates his practice in defending major felony offenses of all types and white collar crimes, and he will also represent individuals in selected criminal misdemeanor matters. Zahn has also defended many doctors, lawyers, politicians and other professionals before their respective licensing boards. Zahn has represented accused individuals in hundreds of jury and court trials around the state and in the Indianapolis area.

Zahn is admitted to practice law before the Indiana Supreme Court, the United States District Court for the Southern District of Indiana, the United States District Court for the Northern District of Indiana, the United States Circuit Court of Appeals for the Seventh Circuit, and the United States Supreme Court.

He is a member of the Indianapolis Bar Association and the Indiana State Bar Association. He has been on the faculty of the Indiana Continuing Legal Education Forum and Trial Advocacy Skills College. Zahn is rated A.V. by the Martindale & Hubble Law Directory and is also listed in Woodward White as the Best Lawyers in America from 1993 to the present. He has been selected by Indianapolis Monthly magazine as being one of Indiana’s Super Lawyers.

Mary Zahn

Mary Zahn has been a trial attorney practicing in the area of criminal defense for over sixteen years. Prior to founding Zahn & Deal, Mary was a partner at the law firm of Voyles, Zahn, & Paul since 2001. There she also focused on criminal defense litigation. While at Voyles, Zahn, & Paul, Mary handled all types of criminal cases including those accused of murder, sex offenses and crimes against children, fraud, battery and domestic battery, drug offenses, robbery, burglary, criminal recklessness, theft, alcohol-related offenses, including DUI, and juvenile matters.

Mary also clerked for the Honorable V. Sue Shields, Magistrate Judge for the Southern District of Indiana. Additionally, Mary spent some time working in conjunction with the lobbyists at the Indiana Motor Truck Association. Mary has also written for the Indiana Lawyer, a statewide legal publication. Mary attended Hanover College and graduated with her Bachelor of Arts degree in History and went on to obtain her law degree from Indiana University School of Law – Indianapolis.

Mary has been a member of the Indianapolis Bar Association, the Indiana State Bar Association, Indiana Trial Lawyers Association, and the National Association for Criminal Defense Attorneys. Mary has been nominated as a Top 40 under 40 attorney in the area of criminal defense and has been recognized by Super Lawyers as a Rising Star in criminal defense several years in a row.

David Deal

A former Marion County Deputy Prosecuting Attorney, David Deal comes to Zahn & Deal after working for nearly ten years at Voyles, Zahn & Paul, where he managed the firm’s civil suits. During his time at Voyles, Zahn & Paul, he also maintained his own private practice in personal injury and criminal defense. He continues to run his own practice today at David Deal & Associates.

Prior to joining Voyles, Zahn & Paul, Deal served as a Deputy Prosecuting Attorney for Marion County and a clerk for the Morgan County Circuit and Superior Courts. In addition, he represented businesses and banks as an attorney at Rylan, Moore, Cook & Hunter.

Attorney David Deal is licensed to practice law in the U.S. District Court for both Northern and Southern Districts of Indiana. In addition, Deal is a member of the Indianapolis Bar Association and the Indiana Trial Lawyers Association and was invited to be a member of the National Trial lawyers Top 40 Under 40 in 2012, which is an exclusive collection of the highest-rated lawyers in Indiana. He has also served on the Decatur Township Educational Foundation Board of Trustees and was selected to the 2015 and 2016 lists of Super Lawyers® Rising Stars℠.

Deal studied psychology at Purdue University, graduating with his Bachelor’s degree in 1998. From there, he moved on to the Indiana University School of Law in Bloomington, where he graduated in 2001.
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