The New York Certificate For Assignment of Commercial Tax Certiorari Proceedings To Supreme Court Commercial Division is a document used by taxpayers in New York to appeal their property tax assessments. This document is required when appealing a property tax assessment to the Supreme Court Commercial Division. This certificate must be completed and filed with the Supreme Court Commercial Division in order to initiate the appeal process. There are two types of New York Certificate For Assignment of Commercial Tax Certiorari Proceedings To Supreme Court Commercial Division: one for general appeals and one for specialized appeals. The general certificate is used when appealing a property tax assessment to the Supreme Court Commercial Division in a generic manner. The specialized certificate is used when appealing a property tax assessment to the Supreme Court Commercial Division in a more complex or specialized manner. Both types of certificates must include the taxpayer's name, address, and contact information; the assessor's name, address, and contact information; the property tax assessment; and a description of the basis of the appeal. Additionally, both certificates must be signed and sworn to by the taxpayer.