Mark S. Klein, Esq.

Courses: 2052, 3011

Mark S. Klein, Esq.,

Chairman of the Firm, concentrates on New York State and New York City tax matters. He also has over 35 years of experience with federal, multistate, state, and local taxation. He is chair of the State and Local Taxation Section of the ACE Accounting Society. Mark is editor of New York Tax Highlights; former editor of CCH’s Guidebook to New York Taxes; and co-author of CCH’s New York Residency and Allocation Audit Handbook, CCH’s New York Sales and Use Tax Answer Book, and NYSBA’s Contesting New York Tax Assessments. He has been quoted by the Wall Street Journal, New York Times, Associated Press, Miami Herald, and CNBC, and has appeared on CNN for a live interview on changing your residency.  He was named 2021 “Lawyer of the Year” in the new edition of The Best Lawyers in America.  He is admitted in New York (1983), Florida (1983), New Jersey (2019) and before the U.S. Supreme Court. 

Mr. Klein can be reached at or @MarkKleinNY.