Hey, your statement '...will also renew F1 visa because that expired almost 2 years ago' raised my eyebrow. What do you mean by F1 Visa expired 2 years ago ? Did he maintain F1 status with SEVIS and received new I-20 from University ? Make sure you have all those documents handy while applying for F1 visa renewal. I am sure your case is not complicated if F1 status is maintained intact.