David De Jong Tax Attorney

"I strive to find the optimum solution for a client.
There's seldom a perfect solution, but there's always
an optimum one."

David S. De Jong


25 West Middle Lane
Rockville, Maryland 20850
301-838-3204 direct
301-354-8104 fax


Different needs, different resources, even if it’s the same type of legal matter. It’s the kind of personal and customized approach—one reliant on each client’s unique situation—that defines how David De Jong dedicates himself to the wide variety of clients he serves.

As chair of the firm’s Tax Practice group – one of 36 firms nationally ranked Tier 1 in Tax Litigation and Controversy by U.S. News & World Report – David helps businesses and individuals with a broad range of tax planning and federal and state controversy matters, estate planning, business transactions and valuations. A CPA with a Master of Laws in Taxation from Georgetown University Law Center, he is accredited in estate planning by the National Association of Estate Planners and Councils and in business valuation by both the American Institute of Certified Public Accountants and the National Association of Certified Valuators and Analysts. With over 40 years of experience, David brings a high level of expertise, creativity, sound judgment and personal attention to helping solve his clients’ tax, estate and business matters.

David is a nationally recognized tax authority and speaks to various industry groups throughout the country. Co-author of J.K. Lasser’s book, Year-Round Tax Strategies, for 16 years, he has been frequently quoted in a number of publications, including the Wall Street Journal and the New York Times. He has also testified as an expert witness over 50 times in tax, estate, business valuation and economic income matters. 

Additionally, David is active in many professional groups. Among them are the American Academy of Attorney-Certified Public Accountants, where he formerly served as National President and received the Louis S. Goldberg Memorial Award for lifetime service to the organization, and the Bar Association of Montgomery County and Foundation, which recognized him as an Honorary Life Bar Leader for his many years of committed service.

Outside of Stein Sperling, David is an adjunct professor of law at Washington & Lee University, team teaching a two-week intensive "practicum" in business transactions. He previously taught a miscellany of tax and business courses for four other universities, including American University and the University of Maryland. He is a past Treasurer and Board Member of the Metropolitan Center for the Visual Arts.  David also captains a competitive trivia team that has won three state championships.


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