Definition
F2B Preference
Family-based: unmarried sons and daughters (21+) of lawful permanent residents.
F2B covers adult unmarried children of LPRs. Because LPRs cannot sponsor married children or siblings at all, F2B is the only path for adult unmarried children whose parent is not yet a U.S. citizen.
See also
Not legal advice. Definitions are provided for educational use. For case-specific guidance, consult a licensed immigration attorney.