The New York Affidavit of Service of Initiating Papers is a legal document used to confirm that a party has been served with initiating papers in a court case. It is also known as a proof of service, and it must be signed by the person who served the papers. There are two types of New York Affidavit of Service of Initiating Papers: one for personal service, and another for service by mail. For personal service, the Affidavit of Service must provide a description of the person served, the date, time, and place of service, and a description of the papers served. It must also be signed by the person who did the service, and be notarized. For service by mail, the Affidavit of Service must provide a description of the papers served, the address to which they were mailed, the date they were mailed, and a description of the proof of mailing. It must also be signed by the person who mailed the papers.