Catherine Yun

Associate

Philadelphia

(215) 864-8021

(215) 665-2013

Recent Publication:

Doing Battle on (At Least) Two Fronts: What Happens When Multiple Regulators Engage in Parallel Enforcement Efforts?

Multi-agency cooperation efforts can go a long way toward obtaining mitigated civil or criminal penalties.

Catherine is a well-rounded and dedicated litigator. Having served as a clerk in two federal courts, she offers strategic and practical solutions through all stages of litigation. She has substantial experience in both individual and class actions, in state and federal court, and has defended clients in the most complex cases, including against antitrust multi-district litigation and RICO claims. Catherine also focuses her practice on white collar defense and investigations, vigorously defending her clients’ rights.    

Prior to joining the firm, she served two years as a federal law clerk — first with the Honorable Ann Marie Donio of the U.S. District Court for the District of New Jersey, and next with the Honorable Gene E.K. Pratter of the U.S. District Court for the Eastern District of Pennsylvania. Prior to her clerkships, she practiced at an Am Law 50 international law firm. 

Catherine received her J.D. from the University of Pennsylvania Law School and her Bachelor of Arts, summa cum laude, in international studies from Boston College. She holds a Certificate of Management from the Wharton School of the University of Pennsylvania. While at Penn Law, she interned for the New Jersey Office of Attorney General, and appellate division of the Philadelphia Office of the District Attorney. 

Before launching her career as an attorney, Catherine worked at an international nonprofit organization. She maintains an active pro bono practice, representing indigent clients facing criminal charges in federal court. 

Publications

Doing Battle on (At Least) Two Fronts: What Happens When Multiple Regulators Engage in Parallel Enforcement Efforts?

July 20, 2021

Multi-agency cooperation efforts can go a long way toward obtaining mitigated civil or criminal penalties.

Notice of Appeal Summer 2021

July 13, 2021

A quarterly newsletter reviewing Third Circuit opinions impacting white collar defense lawyers

Notice of Appeal Spring 2021

April 13, 2021

A quarterly newsletter reviewing Third Circuit opinions impacting white collar defense lawyers

Notice of Appeal Winter 2021

January 12, 2021

A quarterly newsletter reviewing Third Circuit opinions impacting white collar defense lawyers.

High Court Examines Requirement of Political Party Affiliation for State Judges [The Legal Intelligencer]

December 04, 2020

Stephen Miller and Catherine Yun contributed an article to The Legal Intelligencer titled, "High Court Examines Requirement of Political Party Affiliation for State Judges." This article discusses a recent case that presents a challenge to the Delaware Constitution’s anti-patronage provisions

Notice of Appeal Fall 2020

October 19, 2020

A quarterly newsletter reviewing Third Circuit opinions impacting white collar defense lawyers.

Industry Sectors

Education

  • University of Pennsylvania Law School, J.D., 2017
  • Boston College, B.A., summa cum laude, 2010
  • Pennsylvania
  • U.S. District Court -- Eastern District of Pennsylvania
  • U.S. District Court -- Middle District of Pennsylvania
  • U.S. District Court -- Western District of Pennsylvania

Honorable Gene E.K. Pratter, U.S. District Judge, Philadelphia, September 2019-2020

Honorable Ann Marie Donio, U.S. Magistrate Judge, Camden, N.J., September 2018-September 2019