Sarah J. Williams is Assistant Professor of Law at Penn State Dickinson Law. An expert in securities regulation, she previously served as Deputy Director and Associate Director for the Division of Registration and Inspections, Public Company Accounting Oversight Board (PCAOB), Washington, D.C. In these roles, she drafted rules, designed electronic systems and established compliance frameworks for public accounting firms subject to PCAOB oversight, and provided both written and oral guidance on PCAOB regulatory requirements. She also recommended regulatory actions to governing Board members and participated in administrative hearings against public accounting firms. She was selected to the PCAOB’s inaugural Diversity and Inclusion Council based on her demonstrated leadership, innovation and teamwork. Professor Williams also has served as Associate General Counsel for the National Association of Securities Dealers (now FINRA), and as Staff Attorney, Branch Chief and Commissioner’s Counsel at the U.S. Securities and Exchange Commission, Washington, D.C. She started her career as an Associate Attorney at Arnold & Porter LLP, Washington, D.C., where she focused on securities, corporate law and pro bono matters. Professor Williams is an appointed arbitrator for the attorney/client arbitration board of the D.C. Bar, and also serves on its Board of Directors.