Obtaining a green card in the United States is no easy task. The paperwork alone is voluminous and can be complicated without the help of a legal professional. Individuals who seek to adjust their immigration status to become lawful permanent residents (green card holders) must file a Form I-485 with United States Citizenship and Immigration Services (USCIS). The I-485 application to adjust status must be based on an underlying immigrant category, typically employment-based or family-based (such as marriage to a United States citizen).
Depending on an applicant’s circumstances, he or she may wish to change the underlying basis of the I-485 application, which is commonly known as “interfiling.” USCIS has a process that allows individuals to interfile in a pending I-485 case. USCIS calls this process a “change of underlying basis.” We will use the common terminology of interfiling for simplicity.