This bill designates the General George C. Marshall House in Leesburg, Virginia, as an affiliated area of the National Park System. The property, home to the World War II general and statesman George C. Marshall, would be managed by the George C. Marshall International Center rather than directly by the National Park Service. The Secretary of the Interior may offer technical and financial assistance for marketing, interpretation, and preservation of the site, and must enter into an agreement outlining management roles consistent with National Park System standards. The bill explicitly limits federal involvement, stating that the Interior Department cannot acquire the property or take on operational responsibility for it. It also protects the rights of neighboring private property owners by prohibiting the creation of buffer zones or restrictions based on nearby land use.