Why would a us marshal come to the house?

A U.S. Marshal might come to a house for several reasons, including executing an arrest warrant for a wanted individual, serving legal papers, or conducting a property seizure related to federal law enforcement actions. They may also be involved in cases related to federal fugitives or to provide assistance in high-risk operations. Additionally, U.S. Marshals can be called upon to ensure the safety of witnesses or to secure evidence in federal investigations.