Surrogate's Court Procedure:
https://codes.findlaw.com/ny/surrogates-court-procedure-act/
https://www.nysenate.gov/legislation/laws/SCP
Estates, Powers and Trusts Law:
https://codes.findlaw.com/ny/estates-powers-and-trusts-law/
https://www.nysenate.gov/legislation/laws/EPT
Uniform Rules for the New York State Surrogate's Courts:
/rules/part-207-uniform-rules-surrogates-court