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Estate Planning Law Firm

for the Baltimore-Washington Corridor

Jonathan E. Greenstein

Jonathan E. Greenstein joined Walsh and Company, P.A. in 2010 with over 30 years of legal experience. His main legal focuses are estate planning and preparation of wills; planning, structuring, and implementing charitable-giving strategies; and estate and trust administration. He also has extensive experience in real estate law; business and corporate tax planning; guardianships; and structuring tax-exempt charitable and nonprofit organizations. He was also a certified public accountant for over 20 years, and taught for over ten years as an adjunct professor for the University of Baltimore Graduate Taxation Program.


Jonathan has been an active member of the community during the 30 years that he has lived in Maryland. For 25 years he was involved in the Basic Cancer Research Foundation, first as counsel and secretary, then as a trustee and treasurer. He was also involved in P’Tach of Baltimore for over 25 years, which was an organization that promotes and provides special education for people with learning disabilities.


  • University of Baltimore School of Law, Baltimore, Maryland
    • M.L. in Taxation – 1989
  • Temple University James E. Beasley School of Law, Philadelphia, Pennsylvania
    • J.D. – 1978
  • Loyola College, Baltimore, Maryland
    • B.A. (summa cum laude) – 1974

Bar Admissions

  • Pennsylvania, 1978
  • U.S. Tax Court, 1980
  • Maryland, 1981