Visitor visa, crosing mexican border to renew I-94 ?
My mom is having a visitor visa. her visa stamps still valid for 5 years from now. Her I-94 is due to expire in 2 weeks. Can I cross the Mexican border such as in Nogales to get new I-94 ?
When I cross the border from USA to Mexico, how should I surrender the OLD I-94 ?
US custom is the one who issue the I-94 right?
