The name change petition can be filed in the County Court or Supreme Court of the county where you live. Notification of Legal Name.The New York State Unified Court System offers free instruction booklets and forms for people starting a divorce. Find account applications and maintenance forms for accounts and products. Name change applications are accepted via e-filing or on paper through the mail or physical drop box,. If e-filing, applications must be filed under "petition.". Please include your full name and type of medium in the PDF file name. You must submit a current (not expired) and signed photo identification. On the Court's homepage select "Name Change "from the Forms dropdown list. Provide the first and last name, and phone number, for whom the documents are being submitted.