Sean advises clients at the intersection of federal tax policy and congressional investigations, helping organizations navigate complex matters where legislative developments, government oversight, and political scrutiny create legal, financial, and reputational risk. Drawing on senior leadership roles with the U.S. House Committee on Ways and Means, he counsels public companies, private businesses, trade associations, and nonprofits on congressional investigations, tax policy advocacy, legislative strategy, and oversight matters before Congress and the executive branch. Sean helps clients assess emerging risks, engage effectively with policymakers, prepare for potential investigations, and distinguish genuine legal and enforcement threats from the daily political noise in Washington.
Sean brings perspective from both sides of the table. He previously served as chief oversight counsel to the Ways and Means Committee, where he led complex congressional investigations across the committee’s full jurisdiction and served as lead investigator on multiple high-profile matters. He managed document-intensive inquiries, coordinated witness interviews and testimony, worked with multiple congressional committees on joint investigative efforts, and advised members on investigative strategy, oversight authorities, and public hearings. Sean also served as a shared staffer for the U.S. House Committee on the Judiciary and the U.S. House Committee on Oversight and Government Reform to facilitate joint investigative efforts. In these roles, he regularly coordinated with House leadership, briefed members of Congress on investigative developments, and testified multiple times before the Ways and Means Committee. These experiences provide Sean with a deep understanding of how congressional oversight develops, how investigations are conducted, and how legislative and political concerns can evolve into enforcement, regulatory, and reputational risk.
Immediately before joining Cozen O’Connor, Sean served as chief tax counsel to the chairman of the U.S. House Committee on Ways and Means, where he directed the development of all tax policy matters for the committee and the House of Representatives and worked closely with the U.S. Department of the Treasury and the Joint Committee on Taxation. He led the development, drafting, and passage of the tax provisions of the One, Big, Beautiful Bill (H.R. 1) - one of the largest tax bills in modern U.S. history - guiding the legislation through committee markup and House passage and advising members throughout the reconciliation process. His experience provides clients with insight into the development of federal tax legislation and the legislative process, enabling them to engage effectively on complex tax policy matters before Congress and the administration.
Drawing on his experience conducting congressional investigations, Sean advises clients responding to congressional inquiries, oversight requests, hearings, and related reputational challenges. He helps organizations assess investigative risk, prepare executives and other witnesses, engage effectively with congressional stakeholders, and navigate matters involving parallel scrutiny from regulators, inspectors general, and enforcement agencies. He also maintains a robust tax policy practice.
Before entering public service, Sean was an associate in the Litigation & Investigations practice at another Am Law 100 firm, where he represented clients in high-stakes U.S. Department of Justice investigations and complex regulatory and litigation matters. He also served as a law clerk to the Honorable Theresa L. Springmann of the U.S. District Court for the Northern District of Indiana.
Sean earned his Juris Doctor, magna cum laude, from George Mason University School of Law (now Antonin Scalia Law School), where he served as an articles editor of the George Mason Law Review and received multiple writing and academic honors. He graduated summa cum laude from Wabash College with a Bachelor of Arts in political science.