Form I-600 is used by U.S. citizens to classify an orphan, habitually resident in a non-Hague Convention country, who is or will be adopted by a U.S. citizen, as an immediate relative to allow the child to enter the United States.
Use this form to request a reduced filing fee for Form N-400, Application for Naturalization, if your documented annual household income is greater than 150 percent but not more than 200 percent of the Federal Poverty Guidelines at the time you file.
Form I-539, Application to Extend/Change Nonimmigrant Status. It is used by people currently in the United States in a non-immigrant status to change the classification for their status and/or extend their stay with their current status.
Filing a Form I-130 is only the first step in helping a relative immigrate to the United States. Eligible family members must wait until there is a visa number available before they can apply to become a lawful permanent resident.
Use This form is used to petition to bring your fiancé(e) (K-1) and that person’s children (K-2) to the U.S. for marriage to you, or to bring your spouse (K-3) and that person’s children (K-4) to the U.S. to apply for lawful permanent resident status.