Lucas Giardelli is a Tax Transactions & Consulting partner in Mayer Brown’s New York office. His practice is focused on international tax planning for US and non-US multinational companies (including cross-border restructurings and financings, IP planning, post-acquisition integration) and corporate tax matters, advising clients on the tax aspects of acquisitions, divestitures, financing arrangements and other transactions. He also has experience advising high-net worth individuals on international tax matters. Prior to joining Mayer Brown, Lucas practiced tax law at a leading law firm in Argentina.


  • Englisch
  • Spanisch


  • Advising Patrick Drahi’s BidFair on acquisition of Sotheby’s.


Harvard Law School, LLM

Universidad Austral, LLM in Tax Law

Universidad Austral, Law Degree (Gold Medal Award)


  • New York
  • Argentina


  • International Fiscal Association
  • American Bar Association, Tax Section