The affidavit must be notarized, and attached to the original opposition papers before they are submitted to the court. The forms for changing a name or sex designation in the Supreme Court or New York City Civil Court are included in the chart below.Services include witnessing the signing of important documents, taking affidavits and depositions and giving oaths. As a Notary, how do you stay impartial if the signer is your relative? A name change affidavit typically includes your current legal name, the new name you wish to adopt, and the reasons for your name change. An acknowledgment is one of the most common types of notarial acts, but it often confuses Notaries. Here are 5 steps to performing an acknowledgment.