age requirement for k-1 visa
The petitioner of a K1 visa must: 1. Be a United States Citizen Aged 18+. The U.S. petitioner must be at least 18 years old, and be able to prove he or she is a United States citizen. Green card holders are not eligible for the fiance visa. They are, however, eligible for a CR1 visa, although the process can take up to two years or longer.