Family Immigration
A permanent U.S. visa is known as a Green Card. If family wants to immigrate to the U.S., then a Family Preference Immigrant Visa required. Immediate family members of a U.S. Citizens or Lawful Permanent Residents qualify for this type of visa. This includes spouse, children, parents, and siblings.
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      Immediate Family of U.S. Citizens are permitted to become Permanent Lawful Residents if they are: The spouse of a U.S. citizen; The unmarried child under 21 years of age of a U.S. citizen; or The parent of a U.S. citizen (if the U.S. citizen is 21 years of age or older) 
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      First preference (F1) - unmarried sons and daughters (21 years of age and older) of U.S. citizens. 
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      F-2A preference is for spouses and children (unmarried and under 21 years of age) of lawful permanent residents. 
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      F-2B preference is for unmarried sons and daughters (21 years of age and older) of lawful permanent residents. 
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      F-3 preference is for married sons and daughters of U.S. citizens. 
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      F-4 preference is intended to reunite brothers and sisters (and their minor children) with U.S. Citizens or Lawful Permanent Residents. 
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      Also known as a fiancé visa, a K-1 visa allows an U.S. citizen to bring a nonimmigrant foreign fiancé to the United States with the intent to marry within 90 days. 
