A New York Affidavit of Service is a sworn statement that is used to prove service of legal documents, such as summonses, complaints, or other court filings. It is typically signed by the individual serving the documents and attested to by a notary public. It can be used to prove that the documents were served properly and in accordance with the law. There are two main types of New York Affidavit of Service: personal service and substituted service. Personal service requires the documents to be delivered directly to the intended recipient, while substituted service allows the documents to be served on another individual or organization, such as a family member or a professional process server. Both types require the server to sign the affidavit and have it notarized.