Immediate relatives include spouses of U.S. citizens, minor children (under 21) of U.S. citizens, parents of U.S. citizens (provided that the citizen petitioner is at least 21 years old), and certain spouses of deceased U.S. citizens.
(1) First Preference:
Unmarried sons or daughters of U.S. Citizens (including those over 21).
(2) Second Preference:
||(a) Spouses or children of lawful permanent residents, OR
(b) Unmarried sons or unmarried daughters (but not the minor children) of lawful permanent residents.
(3) Third Preference: Married sons or daughters of U.S. citizens.
(4) Fourth Preference: Brothers or sisters of U.S. citizens, if such citizens are at least 21 years old.
(5) Derivative Beneficiaries: The spouse or child of the principal alien is entitled to the same status and order of consideration,
if accompanying or following to join the spouse or parent.