John H. Chassaing
John H. ChassaingJohn H. Chassaing is an associate with Reed, Armstrong, Mudge and Morrissey. He joined the firm in June 2016. Jack was raised in Brentwood, Missouri and attended De Smet Jesuit High School. While in law school, Jack devoted much of his time to public assistance. He assisted state and federal prosecutors, worked in the Civil Practice/Elderly Clinic of the SIU School of Law, and served as a Judicial Clerk.


During law school, Jack appeared before several courts as a licensed intern on behalf of the following entities:
  • United States Attorney’s Office, Cape Girardeau, MO — Rule 13 Licensed Intern
  • St. Louis County Prosecuting Attorney's Office, Clayton, MO — Rule 13 Licensed Intern
  • Union County State’s Attorney’s Office, Jonesboro, IL — Rule 711 Licensed Intern


  • University of Missouri-Columbia, B.S., Business Administration, May 2012
  • Southern Illinois University-Carbondale, J.D., May 2015
    • Degree Certificate for Business and Transactional Law
    • Pro Bono Award for Public Service


  • The Missouri Bar


  • Missouri Bar Association
  • Bar Association of Metropolitan St. Louis

Practice Areas —  John H. Chassaing

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