Yi, Si-Yong

Yi, Si-Yong

Practice Focus

Si-Yong Yi is a partner in the Litigation practice. She concentrates her practice on commercial litigation and resolving business disputes. Her clients include international manufacturers and distributors, non-profit organizations, insurers, local businesses and individuals. Si-Yong represents her clients in cases involving product liability, toxic tort, breach of fiduciary duty, breach of contract, unfair competition, defamation, employment and intellectual property, including cases involving multi-million dollar claims. 

Si-Yong represents her clients in all stages of litigation, including pre-litigation counseling, discovery, courtroom advocacy, and preparation of cases for trial. She regularly appears in federal, state, and bankruptcy courts and in mediations and arbitrations on behalf of her clients.

Professional Background

Si-Yong’s interest in the sciences began during her childhood, and she received her B.S. degree in Chemical Engineering from Massachusetts Institute of Technology (MIT). She earned her J.D. from Chicago-Kent College of Law. 

As a reflection of her accomplishments, Si-Yong has been selected as a Rising Star by Illinois Super Lawyers® every year since 2011. In addition, Si-Yong is active in the firm’s diversity initiative and participates in numerous diversity-related functions and events in the area. 

Si-Yong is proficient in Korean.

Memberships & Affiliations

  • American Bar Association, Member
  • Illinois State Bar Association, Member

Representative Experience

  • Si-Yong was a part of the Tressler team of attorneys that successfully litigated a multi-million dollar case involving breach of fiduciary duty claims