5. Enter the county where the affidavit is notarized. 6. Learn more about the steps involved in coming to Clark, including orientation, applying for and obtaining your Visa, and arriving in the U.S..To find Affidavits of Service go to Forms, visit a Court Help Center or ask the Court for one, most Courts will have this. The last page of this form contains important information related to your rights concerning government records. Please read it carefully. The Assessor's Office maintains the official real property mailing address records for Clark County. The form can be filled out and submitted in PDF format. 1. Download the form and save it on your device.