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Angelo Michael Grasso

New York, New York
212- 818-9600
212- 818-1264

Angelo Grasso is a partner at Greenfield Stein & Senior, LLP, whose practice is in trusts & estates litigation and Article 81 guardianships. Angelo represents clients in a variety of proceedings in Surrogate's Court, including will contests, discovery proceedings, contested accountings, and guardianship proceedings. Angelo has served as lead counsel on trials in Surrogate's and Supreme Court, and argued appeals in the Appellate Divisions of New York Supreme Court.

Angelo is a frequent lecturer on Surrogate's Court matters, and co-chaired the New York State Bar Association's 2014 program on Discovery Proceedings. Angelo is an active member of the New York State Bar Association, where he serves on the Executive Committee and is the incoming Chair of the Surrogate's Court Committee. He is also a member of the Trusts, Estates and Surrogate's Court Committee of the New York City Bar Association, and the Westchester County Bar Association.

Angelo graduated from the Georgetown University Law Center in 2002, where he was an associate editor of the American Criminal Law Review, and was admitted to practice in New York in 2003. He received his B.A. from Columbia University in 1999, where he wrote his senior thesis on the history of American anarchism.

Prior to joining Greenfield Stein & Senior, Angelo was an associate at Cahill Gordon & Reindel, Mongelli, P.C., and Littman Krooks LLP. He joined Greenfield Stein & Senior in 2008, and became a member of the firm in 2016.

Areas of Practice

  • Estate Planning
  • Litigation & Appeals
  • Probate & Estate Administration
  • Trusts
  • Wills

Bar Admissions

  • New York, 2003


  • Georgetown University Law Center, Washington, District of Columbia
    • J.D. - 2002
  • Columbia University, New York, New York
    • B.A.
    • Major: History

Published Works

  • Electronic Discovery in Surrogate’s Court Litigation; Part I: An Introduction to Electronic Discovery Concepts, New York State Bar Association Trusts and Estates Law Section Newsletter, Winter, Vol. 50, No. 4, 2018 (pending)
  • Current Ethics Issues for Trusts & Estates Attorneys, New York State Bar Association Program “Conducting SCPA §1404 Discovery,” Fall 2017

Representative Cases

  • Matter of Lawrence, 24 N.Y.3d 320, 23 N.E.3d 965, 998 N.Y.S.2d 698 (2014)
  • Matter of Triestman, 137 A.D.3d 1049 27 N.Y.S.3d 626 (2d Dep’t 2016)
  • Matter of Lawrence, 106 A.D.3d 607, 965 N.Y.S.2d 495 (1st Dep’t 2013)
  • Matter of Parisi, 111 A.D.3d 941, 975 N.Y.S.2d 459 (2d Dep’t 2013)
  • Matter of Elyachar, 48 Misc. 3d 852, 14 N.Y.S.3d 869 (Sur. Ct. Westchester Co. 2015)
  • Matter of Lawrence, 33 Misc. 3d 1206(A), 939 N.Y.S.2d 741 (Sur. Ct. New York Co. 2011)
  • Matter of Kirk, 32 Misc. 3d 1205(A), 932 N.Y.S.2d 761 (Sur. Ct. New York Co. 2011)


  • New York State Bar Association – Conducting SCPA §1404 Discovery, Fall 2017
  • Surrogate’s Association of the State of New York – Electronic Discovery in Surrogate’s Court, Spring 2017
  • New York State Bar Association – The Spousal Right of Election, Spring 2017
  • New York State Bar Association – 14th Annual Sophisticated Trusts & Estates Institute, Fall 2016
  • New York State Bar Association – The Fiduciary’s Arsenal: Litigating Discovery Proceedings, Spring & Fall 2016
  • New York State Bar Association – Accounting Proceedings, Fall 2014 and 2016
  • Nassau County Bar Association – A Matter of Perspective: Estate Planning to Avoid Litigation, Fall 2015
  • Strafford – Estate and Trust Fiduciary Litigation, Summer 2013, 2014, 2015
  • New York State Bar Association – Discovery Proceedings (Program Co-Chair), Spring 2014
  • New York State Bar Association – Pre-Death Transfers to Family Members, Spring 2014
  • New York State Bar Association – Estate Litigation, Spring 2011

Honors and Awards

  • AV Rating, Martindale Hubbell
  • Rising Star, New York Super Lawyers magazine, 2014-2017
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Greenfield Stein & Senior, LLP
600 Third Avenue
New York, NY 10016-1901
Tel: (212) 818-9600 Fax: (212) 818-1264

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White Plains, NY 10601
Tel: (914) 948-3070