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Justin Taylor Winn

Justin Winn family law lawyer
  • Attorney




Justin Winn is a magna cum laude graduate of the Washington University School of Law and was an Executive Notes Editor of the Washington University Journal of Law & Policy. He competed in numerous trial and appellate advocacy competitions in law school and college, including the national Saul Lefkowitz Moot Court Competition, and earned individual honors at the St. Louis University Billiken Barrister Invitational Tournament. He earned his bachelor's degree in Psychology from the University of Missouri. He is a member of the Missouri State Bar and the Bar Association of Metropolitan St. Louis.

Prior to joining Grant, Miller & Smith, Justin served as a judicial law clerk for Judge Kurt S. Odenwald of the Missouri Court of Appeals. While in law school, Justin served as a judicial intern for Judge Nancy J. Rosenstengel of the federal Southern District of Illinois. Justin also interned for the United States Department of Labor in its occupational safety and health division.

Practice Areas

  • Family Law
  • Divorce
  • Child Custody & Visitation
  • Paternity
  • Guardianship


  • Washington University School of Law, St. Louis, Missouri
    • J.D. - 2019
    • Honors: magna cum laude
  • University of Missouri, Columbia, Missouri
    • B.A. - 2015
    • Major: Psychology

Bar Admissions

  • Missouri, 2019


  • Honor Scholar Award, Two School Years
  • Dean's List, Five Semesters
  • Certificate for Excellence in Oral Advocacy
  • CALI Award for Labor Law
  • CALI Award for Foreign Relations Law of the United States

Past Positions

  • Missouri Court of Appeals, Eastern District, Judicial Law Clerk, 2019 to 2021


  • English