Maryland Service of Process by U.S. Marshals Service (USM-285) is a legal service provided by the U.S. Marshals Service. It involves serving a writ, summons, or other legal documents to a person or organization in the state of Maryland. This is done by a U.S. Marshal or a Deputy U.S. Marshal, who is authorized to act on behalf of the federal government. The types of Maryland Service of Process by U.S. Marshals Service (USM-285) are: Summons and Complaint Service, Subpoena Service, and Writ of Execution Service. Summons and Complaint Service involves serving a summons and complaint to a person or organization in Maryland. Subpoena Service involves serving a subpoena to a person or organization in Maryland. And Writ of Execution Service involves serving a writ of execution to a person or organization in Maryland. All of these services must be completed in accordance with the laws and rules of the state of Maryland.