United States Attorneys' Offices | 137,509 followers on LinkedIn. The United States Attorneys serve as the nation’s principal litigators under the direction of the Attorney General. There are 93 United States Attorneys stationed throughout the United States, Puerto Rico, the Virgin Islands, Guam, and the Northern Mariana Islands. United States Attorneys are appointed by, and serve at the discretion of, the President of the United States, with advice and consent of the United States Senate.