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, 1995-2022, Trusts and Estates and Litigation- Trusts and Estates
  • Best of the Best USA
  • Chambers High Net Worth 2016-2021, Band 1, DC, Private Wealth Law and USA, Private Wealth: Eastern Region

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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

Ellen K. Harrison

Insights & Events / Media

Chicago, IL / McDermott Event / May 13 - 15, 2019

New York, NY / Speaking Engagements / May 6, 2019

San Franciso, California / Speaking Engagements / November 1 - 2, 2018

Chicago, Illinois / McDermott Event / May 14 - 16, 2018

Financial Advisor / Private Wealth / September 29, 2017

Philadelphia, Pennsylvania / McDermott Event / June 5 – 7, 2017

Orlando, Florida / Speaking Engagements / January 9 - 13, 2017

Family Wealth Report / November 18, 2016

International News / Winter 2015

American Bar Association Section on Real Property, Trust & Estate Law / December 9, 2015