An affidavit is a written declaration under oath, made without notice to the adverse party. 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., that service of summons. Service is the delivery of the Plaintiff's initial pleadings to the Defendant. The pleadings are the official documents that open a new court case. Fill out the Request for Service form. An affidavit of service is a sworn statement confirming the delivery of legal documents to relevant parties in a legal process. Instead, you must notify them with official court documents. This is what it means to have them "served. 1.1 Complaint for Divorce, Legal Separation - Children and 75N ; Complaint (Draft Your Own or use Uniform Domestic Relations Form 7).