Here, you will find detailed answers to many of most common immigration questions.
8.
How do I petition for my stepbrother or stepsister, we are related through our father, and one of us was born out of wedlock but not legitimated?
If you are a U.S. citizen seeking permanent resident status for your stepbrother or stepsister and you were and/or your stepsibling was born out of wedlock and not legitimated, you must file
the following items with the U.S. Citizenship and Immigration Services:
Your birth certificate showing your name and your common parent’s name (if your father married your stepsibling’s mother, your father’s name must be visible on the birth certificate; if your mother married your stepsibling’s father, your
mother’s name must be visible on the birth certificate)
If you were not born in the U.S., a copy of
Your Certificate of Naturalization or Citizenship or
Your U.S. passport
A copy of your stepbrother’s or stepsister’s birth certificate showing his or her name and your common parent’s name (see above)
A copy of the marriage certificate between a) your father and your stepmother, or b) your mother and your stepfather, whichever is applicable (the date of the marriage must be prior to the date on which the child who was born out of wedlock reached the age of 18 or was married)
Proof that any previous marriages entered into by your or your stepsibling’s father or mother ended legally (this could include
copies of divorce decrees, death certificates, or annulment decrees)
Proof
that a bona fide parent-child relationship existed between your common parent and the child who was born out of wedlock before that child reached the age of 21 or was married
Note: If anyone’s name has been legally changed (differs from the name on his or her birth certificate), evidence of the name change must be submitted.