Yi Sun


Phone: (314) 863-8887
Email: yisun@yisunlaw.com

Honors and Awards

  • Super Lawyers Rising Star, 2013-2014
  • Super Lawyers, 2021-2022


  • Missouri, 2004
  • United States District Court, Eastern District of Missouri, 2007

Practice Areas

  • Immigration
  • International Business Law
  • Federal and State Criminal Defense


  • Washington University, J.D., 2004


  • The Missouri Bar
  • Missouri Asian American Bar Association
  • American Immigration Lawyers Association


  • English
  • Mandarin Chinese


The founder, Ms. Yi Sun, was born and raised in Qingdao, China. She is a graduate of Washington University School of Law in St. Louis, and earned her J.D. degree in 2004. She earned her Bachelor degree in Law in 2000 from Ocean University of Qingdao (now Ocean University of China).

Her previous work experience includes serving as an Assistant Public Defender in Kansas City trial office where she handled various criminal defense cases.

Ms. Sun's volunteer activities include the Chinese Christian Community Service Center, Legal Services of Eastern Missouri and United Way of Greater St. Louis.

Ms. Sun has been guest speakers at the Citizenship Ceremony at the United States District Court, Eastern District of Missouri and the Diversity Event for United States District Court.

Jonathan K. Glassman

Of Counsel

Phone: (314) 378-5781
Fax: (314) 727-5297

Honors and Awards

  • Super Lawyers Rising Star, 2014-2016
  • Lead Counsel Rated in Divorce Law and Family Law, 2014-present
  • National Academy of Family Law Attorneys, Top 10 Under 40, 2015


  • Missouri, 2004
  • Illinois, 2007

Practice Areas

  • Family Law
  • Divorce
  • Paternity
  • Child Custody
  • Motions to Modify
  • Adoption
  • Child Support
  • Alimony/Maintenance
  • Property Division
  • Prenuptial/Antenuptial Agreements
  • Orders of Protection
  • Appeals


  • Washington University, J.D., 2004
  • Carleton College, B.A. in Economics, 1998


Jonathan Glassman was born and raised in St. Louis and he is proud to represent clients in his hometown. His previous work experience includes clerking for Judge Victor C. Howard on the Missouri Court of Appeals and more than ten years of private practice in family law and civil litigation. Mr. Glassman's volunteer activities include the Missouri Stream Team and Habitat for Humanity

CLE Presentations

  • Discovering Hidden Assets in Divorce" (NBI, 2016 and 2017)