Arianne R. Plasencia - McDermott Will & Emery


Arianne R. Plasencia focuses her practice on US & international tax matters. She provides international and domestic income, gift, and estate tax planning for entities and high-net-worth individuals with a focus on multijurisdictional families and inbound investment planning. She also represents clients in tax audits, offshore voluntary disclosures, and streamlined disclosures as well as advises them on criminal tax examinations and other criminal tax matters. Arianne provides estate and income tax advice, including pre-immigration planning, to wealthy families and works on a wide variety of real estate matters.

While in law school, Arianne served as the managing editor for the Georgetown Journal of Gender and the Law.


  • The Best Lawyers in America
    • Tax Law, Miami, 2024
    • Trusts and Estates, Miami, 2023 and 2024
  • Legal 500 US, 2021 and 2022


Georgetown University Law Center, LL.M (Taxation), 2011
Georgetown University Law Center, JD, 2009
Harvard University, AB, 2006

New York

Portuguese (conversational)
French (conversational)