Jenner & Block

Leah K. Casto is an associate in Jenner & Block’s Chicago office concentrating on complex civil litigation.  She has significant experience in complex civil litigation, compliance review, and class actions.  She has helped clients obtain important victories in a variety of industries, mitigate risk, and avoid unnecessary litigation. Her practice focuses on commercial disputes, including subject matters such as contract disputes, business torts, consumer law, products liability, and others.

Ms. Casto has a broad range of litigation experience, including contract disputes, securities litigation, products liability, subprime lending disputes, and general complex civil litigation.  Ms. Casto has significant experience in class action defense, and has participated in class actions from the complaint through class action certification, including discovery, settlement, and fairness hearings.  Ms. Casto has also participated in a number of internal and government investigations, including preparing submissions and witnesses for investigations by the Department of Justice and the Securities and Exchange Commission, and advising clients on remediation and compliance efforts.

Ms. Casto has significant experience in the area of attorney-client privilege.  Ms. Casto serves as an editor for the annual update for Testimonial Privileges, a ten-chapter, two-volume treatise published annually by Thomson Reuters.  Ms. Casto is also active in updating the firm’s privilege outline, Protecting Confidential Legal Information: A Handbook for Analyzing Issues Under the Attorney-Client Privilege and Work-Product Doctrine.

In addition to her private practice, Ms. Casto maintains an active pro bono practice, representing clients in domestic violence court and municipal court, and appealing administrative findings by the Department of Children and Family Services.  Ms. Casto successfully represented a client in a contested asylum hearing and successfully briefed and argued an appeal in front of the Seventh Circuit.  She currently represents multiple clients in § 1983 cases involving excessive force, medical indifference, and retaliation.

Ms. Casto also serves the firm as a member of its Associates Committee and the firm’s Associate Board of the Diversity & Inclusion Committee.  She is admitted to practice in the state of Illinois.  Ms. Casto earned her J.D. from the University of Michigan Law School in 2012, graduating cum laude.  Prior to attending University of Michigan, she obtained her B.A. from Dartmouth College, where she graduated cum laude.