Professional Experience

Since 2007, Keith D. Black has advised clients on a broad range of Trusts and Estates matters, including estate and trust planning, administration and litigation. From 2008 through 2019, Mr. Black headed his own law firm and expanded his practice to include guardianships, elder law, planning for persons with special needs, and real estate. Mr. Black’s practice also encompassed representing high net worth individuals, trusts, estates, family businesses and foundations in sophisticated tax planning and administration.

As a litigator, Mr. Black’s practice developed to include probate contests, accounting and kinship proceedings, discovery and turnover proceedings, trust invalidation proceedings, and proceedings to suspend and remove fiduciaries. Mr. Black frequently receives appointments by the Surrogate’s Courts as a Guardian ad Litem to represent minors and other persons with a disability in Surrogate’s Court proceedings.

Mr. Black’s legal experience began in 2000 when he worked as a law intern in the litigation department of Clifford Chance Rogers and Wells, LLP, in New York City. Mr. Black also worked in the corporate real estate department of Skadden, Arps, Slate, Meagher & Flom, LLP, in New York City, and is a former volunteer with the Nassau / Suffolk Law Services – Pro-Bono Project.

Mr. Black’s career in Trusts & Estates began in 2006 when he served as the law intern to the Honorable John B. Riordan, Nassau County Surrogate. Mr. Black later worked under the supervision of counsel for the office of the Nassau County Public Administrator. Between 2019 and 2023, Mr. Black was affiliated with the law firm Lewis Johs Avallone Aviles, LLP as Counsel in the Estates, Trusts and Elder law department, and as Partner with the law firm Berkman, Henoch, Peterson & Peddy, P.C.

Mr. Black is a well-known speaker and lecturer on estate and trust planning, administration and litigation. Since Spring 2022, Mr. Black contributes time as a professor at Hofstra University – School of Law, Paralegal Studies Certificate Program teaching a class on Estates, Trusts and Wills.


  • Touro University Jacob D. Fuchsberg Law Center, Juris Doctor 
  • Binghamton University, Bachelor’s of Science Degree in Business Management, Finance and Management Information Systems

Bar Admissions

  • State of New York

Areas of Concentration

  • Estate Litigation
  • Estate Planning
  • Estate and Trust Administration
  • Business Succession Planning
  • Trusts and Estates

Professional Affiliations

  • Nassau Lawyers’ Association of Long Island, Inc. – Chairman of the Board (2020-2022); President (2016-2017); Member of Continuing Legal Education Committee and Scholarship Committee
  • New York State Bar Association
  • Nassau County Bar Association

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