An Illinois Affidavit for Service by Publication/Posting (Example) is a legal document used to provide proof that a party has served notice of a lawsuit to another party through public means, such as by posting a notice in the newspaper or other public space. This affidavit must be sworn to and notarized by the person who posted the notice. It must include the name of the court involved in the case, the case number, the date notice was posted, the manner in which it was posted, the name of the person to whom notice was sent, and the date of the last publication. There are two types of Illinois Affidavit for Service by Publication/Posting (Example): one is used when a party is attempting to serve notice by publication, and the other is used when a party is attempting to serve notice by posting. Both types of affidavits must be signed by the party that posted the notice and notarized in order for the notice to be deemed valid.