An Idaho Affidavit of Service of 3 Day Notice to Pay Rent or Vacate is a legal document that is used to notify renters in the state of Idaho that they have three days to either pay their past due rent or vacate the rental property. This document must be served to the tenant in accordance with Idaho state law, and it must include specific information such as the tenant's name, the amount of rent owed, the date and time the notice was served, and the signature of the person who served the document. There are two types of Idaho Affidavit of Service of 3 Day Notice to Pay Rent or Vacate: Personal Service and Substitute Service. Personal Service requires the notice to be delivered in person to the tenant, while Substitute Service requires the notice to be posted and/or mailed to the tenant's address. In either case, the Affidavit of Service must be signed by the person who served the notice in order to be valid.