Sean Gannon is an experienced tax controversy and litigation attorney with a strong technical background and a detailed understanding of IRS procedural matters. His practice focuses on representing clients in IRS examinations, appeals and litigation.

Prior to joining Bradley, Sean served as a member of the management group of the tax controversy practice for a Big Four accounting firm, where he assisted clients with their IRS and state tax controversies, including advising on examination and collection matters, providing analysis of technical issues, addressing compliance issues arising from extraordinary filing requirements, and providing representation during IRS and state administrative appeals. Sean routinely advises Fortune 500 companies, large FOF structures, and closely held businesses, and he provides representation relative to a wide range of matters, including transfer pricing, intangible-asset valuation, research credits, debt-equity determinations, and loss deductions.

Sean previously served as a special trial attorney with the Office of Chief Counsel for the IRS, where he was responsible for issuing written guidance for IRS revenue agents, appeals officers, and settlement officers on various substantive tax issues, as well as advancing and litigating some of the most important, sensitive, and complex tax cases for the commissioner.

*Admitted only in Illinois; practicing law in Georgia pending admission to the Georgia Bar and under the supervision of principals of the firm who are members of the Georgia Bar.

Bar Admissions

• Illinois, 1998

• United States District Court, Northern District of Illinois
• United States Tax Court

Education

• University of Florida Levin College of Law, LL.M., Taxation, 2001
• Western Michigan University Cooley Law School, J.D., 1997
• Michigan State University, B.A., Marketing, 1992