1683–1847: The Court of Chancery had statewide jurisdiction over civil equity matters, such as mortgage foreclosures, real property proceedings, sale of estates in dower and curtesy, naturalizations, matrimonial disputes, divorces, guardianships, and child custody. It absorbed the court of probate and had appellate jurisdiction over surrogate's courts. After 1847 equity responsibilities were assigned to the supreme court.
The Records of the New York Court of Chancery, 2nd through 8th Circuits, 1823–47, are now at the state archives. The Records of the New York Court of Chancery, 1st Circuit, 1823–47, which sat in New York, are at the New York County Courthouse, Office of the County Clerk. They contain decrees, files, indexes, minutes, and orders. The Family History Library has some of these for the first circuit, including minutes, 1711–1847; indexes, 1700–1848; and records, 1787–1910.
1847–present: County courts are the major trial courts for each county with jurisdiction over criminal matters, minor equity cases, and some appeals. They assumed the duties of the court of common pleas. The Family History Library has some records.
https://wiki.familysearch.org/en/New_York_Court_RecordsGood Luck
