Applicant has been a bona fide resident of. Individual Forms for Name Changes.The following are a collection of the individual forms one may need for all case types. Complete all fields on the Application for Change of Name of Adult (Form 21.0), the Birth Certificate. 1. Fill out the forms according to the following instructions. Take them to the Clerk of the Probate Court. ONLINE: Go to "efiling.franklincountyohio. Gov" to request an account and apply for your name change online. Name change applications are accepted via e-filing or on paper through the mail or physical drop box. The letter must be on the doctor's office letterhead and contain certain items.