For a spousal petition, both people must be free to marry and same-sex marriages are included. That means all divorces and annulments must have been done exactly as required by the laws of the country where the divorce or annulment was done. If your divorce is found not to be in compliance, your application will be denied. In addition, your marriage must be recognized by the laws in the country in which it was done. Many countries do not recognize church-only marriages as valid. Marriage cases can be challenging, as this category is most subject to abuse, so providing strong bona fides and supporting evidence is very important.
Only U.S. citizens can petition for their parents.
Only U.S. citizens can petition for their siblings and there is an extremely long wait for a visa to be available.
If you want to bring your fiancé to the U.S. to marry him or her and sponsor that person to stay here, you can file for a K-1 visa, which allows the fiancé of a U.S. citizen to enter the United States for a period of up to 90 days in order to marry the U.S. citizen. You can also bring children under 21 years old on a K-2 visa.
*Violence Against Women Act (VAWA) Filings
If you are a man or women who is being abused by your petitioning relative (except for fiancés) you can request status independently of your abusive U.S. citizen (USC) or permanent resident(LPR/green card) family member by filing your own petition. With only limited exceptions, immigration officers cannot disclose information about you and cannot make determinations regarding you by relying solely on information provided to them by the abusive USC or LPR or your family members.