Family based immigration is becoming a U.S. permanent resident through certain family relations. Normally, a U.S. citizen (USC) or legal permanent resident (LPR) would file an immigration petition with the United States Citizenship and Immigrations Services (USCIS) (formerly known as the Immigration and Naturalization Service (INS)). This USC or LPR is called the Sponsor. The alien relative for whom the immigration petition is filed is called the Beneficiary.
Family-based immigration and Special Immigration Petitions/Applications