A New York Affidavit in Support of Order to Show Cause is a sworn written statement made by a party to a legal action in New York. It is submitted to the court in support of an Order to Show Cause, which is a document that asks the court to take certain action. The affidavit sets forth the facts and circumstances of the case in detail and provides the court with the evidence needed to make a decision. There are two types of New York Affidavit in Support of Order to Show Cause: an Affidavit in Support of Custody and an Affidavit in Support of Visitation. The affidavit must be signed in the presence of a notary public and filed with the court.