Stephen J.P. Kupiszewski (prefers, Steve) was born in Lake Whales, Florida. He came to Arizona in 1981 as an All-American swimmer on a swimming scholarship to Arizona State University. He was team captain for the 1984-85 season. In 1986 he graduated with his B.S. in business. Like his father, he attended Cumberland School of Law at Samford University in Birmingham, Alabama graduating in December of 1989. After a brief solo practice, Stephen became an Assistant Attorney General in 1991 working in the Protective Services Section of the Arizona Attorney General's Office.  In 1997 he Joined Tielborg, Sanders & Parks practicing in the area of medical malpractice and insurance defense cases. Steve returned to juvenile court with the Legal Defender’s Office in December of 1998, focusing his practice and representing parents on severance and dependency cases against the State of Arizona.

Steve was appointed to the superior court bench as a Commissioner and began his career as a Judicial Officer on August 3, 2003. Through the rotation process, Steve presided over Criminal, Family, Probate, Juvenile, Mental Health, Tax and Civil calendars. He has retired from his last rotation on a blended calendar serving Probate and Family Court cases on March 29, 2013. After two long days in retirement, Steve opened his law practice working as Of-Counsel with his wife Jennifer.

Steve and Jennifer have 5 children between them. His greatest accomplishment is putting all five of them through of them college and moving them off of his cell phone bill. Steve and Jennifer have one granddaughter and are looking forward to more.