[sammyg2]

Answer, I wouldn't get into a situation where I would have it consider it but if it ever happened, I would never walk away. I would make payments as long as it was physically possible and would not miss a payment if i had money to pay.

Your friend signed legal binding contracts to pay back the money he borrowed and that is exactly what he should do, no matter what.
Walking away is just a legal punk out, a way to get out of facing up to your responsibilities.