A Practice Note summarizing the procedure for ancillary estate proceedings in New York. This Note identifies the key laws and procedures for an ancillary estate proceeding in New York, such as preliminary requirements for beginning an ancillary proceeding, the appointment of an ancillary fiduciary (referred to as an ancillary executor or ancillary administrator), the petition for ancillary probate or ancillary administration, and the administration and distribution of an ancillary estate.