He was born in Phoenix, Arizona, and graduated from Brophy Prep High School in 1992. He received his Bachelor of Arts in Communication Emphasis and Speech, and minored in Business at the University of San Diego in 1997. Kortni Kleinman then attended Thomas Jefferson School of Law in San Diego, California and earned his Juris Doctorate in 2000. Prior to joining Kleinman, Lesselyong, Beltz & Kleinman, Kortni owned a small real estate company. He is a member of the State of Arizona bar. Some of his hobbies include coaching high school baseball and basketball and being an animal rights advocate.