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Practitioner guide to Maryland service — Md. Rule 2-121 (including restricted-delivery mail) through UIDDA domestication at Cts. § 9-401 et seq.
Maryland service of process is governed by the Maryland Rules, particularly Rule 2-121 for circuit court and Rule 3-121 for district court. Maryland is a heavy user of certified mail with restricted delivery — a method widely preferred by counsel because the clerk can send the mailing without retaining a process server. The state has 23 counties plus the independent city of Baltimore, which functions as a 24th service-of-process jurisdiction. The Maryland State Department of Assessments and Taxation (SDAT) is the authoritative source for registered-agent information.
This is practical guidance, not legal advice. Maryland service of process rules are found in Md. Rule 2-121, 3-121. For service of process nationwide, Served 123 LLC handles Maryland and all 49 other states with qualified servers.
Under Md. Rule 2-123, service may be made by the sheriff, any competent adult at least 18 years old who is not a party to the action, or — for certified-mail service — the clerk of court. Maryland does not require court appointment for each case and does not maintain a statewide licensing program for process servers. Private servers are commonly used for personal service in Baltimore City, Montgomery, Prince George's, and Anne Arundel Counties, while smaller counties often rely on the sheriff.
Personal service under Md. Rule 2-121(a)(1) is accomplished by delivering the summons, complaint, and accompanying papers to the individual personally. The server files an affidavit of service with the court identifying the date, time, and place of delivery, and the person served. Personal service is the most direct path and is often elected when the plaintiff anticipates the defendant may refuse certified mail.
Md. Rule 2-121(a)(2) authorizes substituted service by leaving a copy of the summons, complaint, and accompanying papers at the individual's dwelling house or usual place of abode with a resident of suitable age and discretion. The recipient must actually reside at the dwelling. Maryland does not specify a minimum age by rule, but courts typically expect a co-resident of 16 or older who appears capable of understanding the documents. Abode service without a suitable co-resident present is invalid.
Md. Rule 2-121(a)(3) authorizes service by certified mail, return receipt requested, restricted delivery to the addressee. The restricted-delivery designation requires the recipient's own signature — the mail carrier will not leave the mailing with a co-resident or accept a household signature. This makes Maryland's certified-mail service distinctly reliable: the green card, signed by the defendant personally, is strong evidence of actual notice. The return receipt is filed with the court along with a certificate from the party who mailed the service. Unclaimed or refused mail does not constitute valid service.
Service on Maryland corporations, LLCs, and partnerships is made on the resident agent under Md. Code Ann., Corps. & Ass'ns § 2-210 (corporations) and § 4A-210 (LLCs). SDAT's business entity search (egov.maryland.gov/BusinessExpress) identifies the resident agent and address. If the resident agent cannot be served after reasonable effort, service may be made on the State Department of Assessments and Taxation (SDAT) as statutory agent under § 3-405. SDAT then forwards process to the entity's principal office.
For defendants outside Maryland, Md. Rule 2-121(a) authorizes service by any of the methods available for in-state service — personal delivery, abode service, or restricted-delivery certified mail. Maryland's long-arm statute at Md. Code Ann., Cts. & Jud. Proc. § 6-103 extends jurisdiction to the constitutional limit. Practitioners frequently use restricted-delivery certified mail to serve out-of-state defendants directly, avoiding the cost and delay of retaining a destination-state server.
Md. Rule 2-122 governs service by publication or posting and is available when the defendant's whereabouts are unknown after reasonable effort. The party applies for a court order directing the method of notice. Publication typically runs once a week for three successive weeks in a newspaper of general circulation. In some family-law contexts (divorce, custody), posting by the sheriff at the courthouse is also authorized. Service by publication generally supports only in rem or status relief.
Maryland adopted the Uniform Interstate Depositions and Discovery Act at Md. Code Ann., Cts. & Jud. Proc. § 9-401 et seq. To domesticate a foreign subpoena, counsel submits the original out-of-state subpoena to the clerk of the circuit court in the Maryland county where discovery is sought, together with a proposed Maryland subpoena that incorporates the foreign commands. The clerk issues the Maryland subpoena without requiring a motion or appearance by local Maryland counsel. Service of the Maryland subpoena must comply with Maryland civil-procedure rules — restricted-delivery certified mail is commonly used for document subpoenas to Maryland custodians.
Maryland service must be completed within 60 days after the issuance of the summons under Md. Rule 2-113, and a copy of the summons expires after 60 days if not served. If service is not completed within that window, the plaintiff may obtain a new summons from the clerk and continue service efforts — the original filing date remains operative for statute-of-limitations purposes under Md. Rule 2-101. Practitioners should calendar the 60-day summons-expiration deadline.
The affidavit or return of service is filed with the court and must identify the date, time, place, and manner of service, the person served, and any distinctive facts (e.g., the relationship of a co-resident in abode service). For restricted-delivery certified mail, the return is the green card signed by the addressee together with a certificate from the sender. A defective return can be amended, but the underlying service must be valid.
Practitioners routinely handle Maryland service across Baltimore City and the 23 counties for restricted-delivery certified-mail service directly through the clerk, personal and abode service by private servers and sheriffs, registered-agent service on Maryland corporations and LLCs through SDAT, UIDDA subpoena domestication through the clerk of the circuit court, and substitute service on SDAT as statutory agent when resident agents cannot be reached.
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No. Maryland, like every other state, prohibits parties from serving their own process. The server must be an adult non-party or an authorized officer/licensed server per Maryland rules.
A Maryland summons expires 60 days after issuance under Md. Rule 2-113. If service is not completed within that window, the plaintiff may obtain a new summons from the clerk, and the original filing date is preserved for statute-of-limitations purposes under Md. Rule 2-101. Calendar the 60-day deadline on filing.
Yes — Md. Rule 2-121(a)(3) authorizes service by certified mail, return receipt requested, restricted delivery to addressee only. The restricted-delivery designation requires the recipient's personal signature, not a household member's. The signed green card is prima facie evidence of service. Unclaimed or refused mail does not constitute valid service.
Service on a Maryland corporation or LLC is made on the resident agent under Md. Code Ann., Corps. & Ass'ns § 2-210 (corporations) and § 4A-210 (LLCs). The SDAT business entity search identifies the resident agent and address. If the agent cannot be served after reasonable effort, service may be made on SDAT as statutory agent under § 3-405.
Maryland follows the majority refused-acceptance rule. The server may place the papers in the defendant's immediate presence after identifying the nature of the documents. Service is valid despite refusal.
For out-of-state defendants, Maryland Rule 2-121 authorizes personal delivery, abode service, or restricted-delivery certified mail. The Maryland long-arm statute at Md. Code Ann., Cts. & Jud. Proc. § 6-103 extends jurisdiction to the constitutional limit. Restricted-delivery certified mail is a commonly used and efficient method for reaching out-of-state individuals.
Start with a skip trace, then move for service by publication on a court order supported by an affidavit documenting diligent inquiry. three successive weeks in a newspaper of general circulation in the county where the action is pending.
