You will visit the embassy at least twice during the immigrant visa process. Once to complete Document Review and a second visit for your visa interview.The doctor will need the following items to complete the medical exam forms: • Your visa interview appointment letter,. Application form needs to be completed in BLOCK letters (e.g. DOE, JOHN) and in black or blue ink only. Upon arriving in The Islands of The Bahamas, everyone must fill out and sign an immigration form, keeping a portion of the card in hand until departing. A citizen of a foreign country who seeks to travel to the U.S. generally must first obtain a U.S. visa, which is placed in the traveler's passport. Living together as husband and wife. Process. Complete application form. Welcome to the U.S. Citizen Services Unit at the United States Embassy in Nassau, The Bahamas.