Who can serve Legal Papers? A party in the case can never serve legal papers, like a Summons and Complaint, a Notice of Petition and Petition, or a Motion, unless a Judge says it is o.k. A process server can be paid to serve the papers. Process servers are listed in the Yellow Pages or on the internet. Or, anyone, like a friend, can serve the papers. But, the person serving the papers must be 18 years old or older. A party can go with the person serving the papers when they are served.