My parents got green card 5 years ago because my sister is citizen.They
had lived with my sister for about 2 years in US. But they decided to settle down in China and went back to China 2 years ago. Now, I am pregnant
and they agree to come to US for a short visit. I am wondering if they can
apply visa through agent like some banks instead of apply visa in person.
Please let me know if they can use agent because they are old and not in
good health condition. Thanks!