Ellen K. Harrison - McDermott Will & Emery


Ellen K. Harrison advises clients on a broad range of tax issues, including estate planning and administration, tax controversies, and income, gift and estate tax planning for individuals, businesses and charitable organizations. She has significant experience drafting wills, trusts, powers of attorney, prenuptial arrangements and buy-sell agreements, as well as a broad range of corporate documents and family partnership agreements. Her tax controversy and litigation experience includes Internal Revenue Service (IRS) audits, IRS appeals, refund claims and US Tax Court litigation.

Previously, Ellen was an adjunct professor at Georgetown Law Center.


  • The Best Lawyers in America, Trusts and Estates and Litigation – Trusts and Estates, Washington, DC, 1995–2024
  • Best of the Best USA
  • Chambers High Net Worth, Band 1 in District of Columbia: Private Wealth Law and USA Nationwide: Private Wealth Law, Eastern Region, 2016–2023

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  • American Bar Association, Section on Real Property, Trust and Estate Law, previously served as liaison to the American Institute of Certified Public Accountants (AICPA) and as co-chair of the Trust and Estate Committee on Government Submissions
  • American College of Trust and Estate Counsel, fellow, liaison to the AICPA, as well as past regent and past chair of the International Estate Planning Committee and the Washington Affairs Committee

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Harvard Law School, JD, cum laude, 1971
University of Michigan, BA, with highest honors, 1968

District of Columbia