Fill out the Request for Service form. (F) Proof of service of notice; when service of notice complete.When service is made through the court, proof of service of notice shall be in the same. An affidavit of service, also sometimes called a proof of service affidavit, is a type of affidavit that relates to legal documents that are filed with a court. This form can be used to file an affidavit in support of court papers in the Cuyahoga County Domestic Relations Court. An affidavit of service is a sworn legal document confirming that specific legal papers were delivered to the intended recipient. The affidavit should list all the efforts made to learn the address. All documents offered for filing in the Court of Claims must contain a Certificate of Service. Ohio Legal Services also has information about Representing Yourself in Small Claims Court. These forms must be filled out and submitted to the Clerk of the Court together.