If he's defaulted on school loans and they're federal....he's better off REHABing them first.
Call the DOE/originating Fed Lender and ask about the rehab program. That way, at the end of the rehab period, all the bad listings can be removed and the loan(s) will be resold to another lender and he can start over. It will help the credit score and picture tremendously.
I did it last year. Depending on the amount of the loans though, a down payment is required (my down payment for the rehab prgm was almost 10K), and then automatic draft for the rehab period.
"...what good do your words do if they can't understand you??...."