What does a professional process server do? A process server is responsible for delivering legal documents to the parties involved in court proceedings. Some states require process servers to be licensed or registered, and all process servers must adhere to all state regulations governing legal service of process. Process servers typically locate the individual named on the document, travel to that person to deliver the documents, verify the person's identity before handing over the papers, and then provide their client with a signed proof of service. This proof of service - also called the affidavit of service - details the time, date and location of the service of process, and the subject's name. It is the document you can present in court to verify that successful service of process o