Process Server Glossary
Plain-English definitions of the words you will hear when hiring or working with a process server. Browse more than 30 terms, then find a verified server for nationwide service of process.
Process Server
A professional who delivers legal documents (summonses, subpoenas, complaints, court orders) to the people or businesses named in a lawsuit. Process servers ensure that the recipient is given proper notice as required by due process.
Service of Process
The legal procedure of formally delivering court documents to a defendant or other party. Proper service gives the court jurisdiction to hear the case and allows it to move forward.
Personal Service
Hand-delivery of legal documents directly to the person named in the documents. It is the most direct and widely accepted form of service of process.
Substituted Service
Delivering legal documents to someone other than the named party at the recipient's usual place of residence or business, when direct delivery is not possible. Rules vary by state.
Affidavit of Service / Proof of Service
A sworn statement completed by the process server after delivery, describing when, where, and how the documents were served. Courts use it to confirm that service was valid.
Return of Service
The server's written report filed with the court after service is completed, often attached as the affidavit of service. It documents the result of each delivery attempt.
Rush / Expedited Service
Faster-than-standard process serving, usually attempted within 24–72 hours. Fees are higher because the server prioritizes the job.
Same-Day Service
A premium service level in which the process server attempts delivery on the same day the job is received. Availability depends on the server, location, and cutoff time.
Skip Tracing
The process of locating a person who is difficult to find. Servers and investigators use public records, databases, and other tools to track down current addresses and contact information.
Registered Agent
A person or company designated to receive service of process on behalf of a business entity. Corporations and LLCs must maintain a registered agent in each state where they operate.
Due Process
A constitutional requirement that people receive fair notice and a chance to respond before a court takes action that affects their rights. Service of process is a cornerstone of due process.
Marshal vs Process Server
Marshals and sheriffs are law-enforcement officers who can serve legal documents as part of their official duties. Private process servers are civilians who specialize in timely, professional service and are often faster and more flexible.
E-filing
Filing court documents electronically through a court-approved portal. After a document is electronically filed, a process server may still be needed to serve it on the opposing party.
Stakeout / Surveillance
Waiting near a known location where a recipient is likely to appear so documents can be served in person. It is typically used only when other service methods fail.
Summons
A court document that notifies a defendant that a lawsuit has been filed and tells them how and when to respond. It is usually served with a complaint.
Complaint
The legal document that starts a civil lawsuit, describing the plaintiff's claims against the defendant. It is served together with the summons.
Subpoena
A court order requiring a person to testify or produce documents. Subpoenas are commonly served by process servers on witnesses and third parties.
Plaintiff
The person, business, or government entity that files a lawsuit. The plaintiff relies on service of process to notify the defendant.
Defendant
The person or party being sued or accused in a legal action. Proper service on the defendant is required before a court can enter a judgment.
Witness
A person who may have information relevant to a case. Witnesses are often served subpoenas to appear or produce documents.
Notary / Notarization
The act of a notary public verifying a signature or document. Some affidavits of service must be notarized to be accepted by a court.
Venue
The proper geographic location (county or court district) where a case may be heard. Venue rules affect where service should occur.
Tolling
The legal effect of pausing or extending a deadline. Proper service often starts the clock for a defendant's response time, and defective service can toll that time.
Service by Publication
A last-resort method of service used when a recipient cannot be located, involving publication in a newspaper or other public notice. It requires court approval in most states.
Service by Mail
Sending legal documents by certified or first-class mail with a return- receipt requested. Some states permit this method, while others require personal delivery.
Motions
Formal requests made to a court for a ruling or order. After service is completed, parties may file motions to compel, dismiss, or extend deadlines.
Writ of Possession
A court order authorizing the removal of a person or property from real estate. Eviction-related writs are commonly served by sheriffs or process servers.
Nationwide Service of Process
The ability to coordinate process serving across all 50 states, usually through a directory or network of local servers. Nationwide coverage ensures compliance with each state's local rules.
Errors & Omissions Insurance
Professional liability coverage that protects a process server if a mistake in service causes a case delay or dismissal. Many clients require proof of coverage.
Surety Bond
A bond required by some states before a process server can be licensed. It provides financial protection to clients if the server violates state rules.
Sources & further reading
Definitions reflect general U.S. legal practice and primary authorities. Always confirm the current rules for the state or court where service occurs.
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