回复：H4 parents B2 visa-Shanghai

1. You and your hu*****and sign invitation letter together (both sign), and other financial support materials should be under your hu*****and's name, include his employer's Human Resource letter.
2. I bieve the fee will be double if both your father and your mother to apply visa.
3. It is a BAD reason. If the VO know they will come to takecare baby, your parents can not obtain visa abslutely. The American's thing is that you should hire person in America.