Kathleen Pakenham is co-chair of Cooley's Tax practice group and serves on the firm's Management Committee. Kathleen is a seasoned litigator in matters involving complex questions of federal tax law and procedure. She has represented clients in sizable tax controversies relating to tax shelter issues, options trading transactions, summons enforcement actions, tax fraud, subpoena requests and real property tax disputes. She has extensive experience advising clients at the pre-litigation assessment phase. She also represents clients involved in all types of internal and governmental investigations, in addition to state and federal trial and appellate matters. Her clients have included Fortune 500 companies in diverse industries such as banking, energy, telecommunications, and oil and gas.

Kathleen has been recognized consistently as a leader in the tax litigation and controversy practice area by Chambers USA and The Legal 500. Additionally, she was appointed to the prestigious United States Attorney General's Honor Program immediately after her graduation of law school. Kathleen also clerked for the Honorable Steven M. Gold of the United States District Court for the Eastern District of New York after graduating from law school.