Jenner & Block

E.K. McWilliams is a member of the Investigations, Compliance and Defense Practice.  McWilliams has significant experience in government and internal investigations spanning industries including FinTech, banking, gaming, automotive, and manufacturing.  McWilliams is a skilled and creative investigator who is regularly called upon to unravel and render findings in the most complex factual and legal scenarios.  McWilliams has particular experience with issues related to the Bank Secrecy Act and anti-money laundering compliance, cryptocurrency, and federal cannabis regulation and enforcement.  McWilliams is a certified anti-money laundering compliance specialist.  In addition, McWilliams also has broad experience in the realm of public ethics, and has represented both individual clients and corporations in counseling on federal public corruption laws, the Lobbying Disclosure Act, and local Ethics Ordinances.  McWilliams has successfully advocated for clients before the Chicago Board of Ethics.

McWilliams also maintains a robust and varied pro bono practice.  McWilliams has represented incarcerated individuals who seek to vindicate their constitutional rights under Section 1983 and defendants in criminal cases, and has also led and won jury trials for indigent individuals in civil matters.

McWilliams received a JD from Northwestern Law School in 2014 and graduated cum laude.  While at Northwestern Law, McWilliams served as a member of the Center on Wrongful Convictions and the Children and Family Justice Center and was awarded a Point Foundation Scholarship and a FASPE Fellowship.  Before law school, McWilliams attended Oxford University on a full scholarship as a Clarendon International Scholar and received an MS in comparative social policy.  As an undergraduate, McWilliams received a BA with distinction from the University of Wisconsin-Madison, where E.K. served as chair of the Associated Students of Madison and received a Letters and Science Senior Honors research grant to write a thesis in applied ethics.

Prior to joining Jenner & Block, McWilliams worked as chief of staff to a leader in the Wisconsin State legislature and coordinated policy research, legislative strategy, media and lobbyist relations, and constituent services.