The name change petition can be filed in the County Court or Supreme Court of the county where you live. Name Change Adult. FORM. TITLE. PDF. FILLABLE. HELP. 12.Ex-parte Petition for Change of Name of Adult. How can I change my Deed? Unfortunately, you cannot change an existing deed. Complete ONLY if form is being modified after the original sign date. To name a new beneficiary please use form OL122A. Sign it in front of a notary and file it with the recorder of deeds for the county where the property is located. Form RP5217PDF is required whenever a deed is recorded with the county clerk's office. Form-RP-5217-PDF is required even if a property is not being sold.