Last updated: August 12, 2025. By Asel Williams, Esq. · Columbia Law School · Licensed immigration attorney What is Form I-129F Form I-129F is the first step of a K-1 visa application Form I-129F is officially titled “Petition for Alien Fiancé(e)” K-1 visa is also known as a “Fiancé(e) visa” U.S. citizens engaged to foreign […]