White & Case LLP has an established tax controversy practice handling domestic and cross-border civil and criminal tax disputes and investigations. The team represents US and multinational corporations, tax-exempt organizations, and high-net-worth individuals in complex matters, including sensitive enforcement proceedings and large-scale controversies. The practice is jointly led by Kevin Spencer, who joined from McDermott Will & Schulte last year and advises on high-value disputes across sectors including sports, gaming, and technology; and Kim Marie Boylan, who concentrates on IRS administrative appeals, Fast Track settlement procedures, mediation, and other alternative dispute resolution mechanisms. Sean Lyons represents clients in IRS examinations and appeals proceedings. All mentioned team members are based in Washington DC.
Legal 500 Editorial commentary
Key clients
- ‘Useful, practical advice combined with deep expertise.’
- ‘The partners do more than provide a technically correct answer; they tailor their advice to our specific facts and business objectives. They are true business partners to our tax department, helping us communicate effectively across senior leadership and ensuring that advice is both legally sound and commercially aligned.’
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Kevin Spencer; Kim Marie Boylan
Other key lawyers
Sean Lyons