Adult Name Change Order, Form. 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.The information concerning a name change and the necessary forms can be found here and Information regarding a fee waiver can be found here. How do I file a change of name for an adult? FKA (formerly-known-as) is only allowed with a marriage, a divorce, or a legal name change decree attached. Gather and fill out all necessary name change forms. Please refer to the complete checklist here: Change of Name Checklist for Minors. Intheblanks form required for any matter originating and electronically filed in Supreme or Surrogate's Courts in Richmond County. Complete and sign the appropriate birth certificate form. Enclose original documents to support the amendment.