I don't think she can use B1 visa back from Canada, and I wonder how she will get into Canada.
I knew she could go Mexico, no border check when leaving US to Mexico, but new Visa is required when back to US as well, that can only be got from the location issuing the priginal visa.
I knew she could go Mexico, no border check when leaving US to Mexico, but new Visa is required when back to US as well, that can only be got from the location issuing the priginal visa.