The F-4 visa is a family-based immigrant visa for siblings of U.S. citizens. It allows brothers and sisters of U.S. citizens (plus their spouse and unmarried children under 21) to immigrate to the United States. For example, if you have a sibling who is a U.S. citizen and is willing to sponsor you, you may be eligible for this category. Keep in mind that there is a waiting list for F-4 visas, which can take several years depending on demand and your country of birth. The process starts when the U.S. citizen sibling files a petition (Form I-130) on your behalf. We help families by preparing the petition, guiding through the documentation needed, and advising on how to navigate the long waiting process for a successful outcome.