Quentin joined Gunderson, Palmer, Nelson & Ashmore, LLP as an associate in August 2007 after a one-year clerkship with the First Judicial Circuit Court. While there, he clerked for the Honorable Arthur L. Rusch, Honorable Glen W. Eng, and the Honorable Steven R. Jensen. Quentin graduated from the University of South Dakota School of Law, Vermillion, South Dakota in 2006. While attending law school, Quentin was a member of the Client Counseling and Negotiations Board. He served as treasurer for one year. His undergraduate studies were completed at Northern State University, Aberdeen, South Dakota in 2002.