Bankruptcy sounds like the best option, this came up first on google:
http://www.studentloanborrowerassistance.org/bankruptcy/
"Courts use different tests to evaluate whether a particular borrower has shown an undue hardship. A common test is the Brunner test which requires a showing that 1) the debtor cannot maintain, based on current income and expenses, a “minimal” standard of living for the debtor and the debtor’s dependents if forced to repay the student loans; 2) additional circumstances exist indicating that this state of affairs is likely to persist for a significant portion of the repayment period of the student loans; and 3) the debtor has made good faith efforts to repay the loans. (Brunner v. New York State Higher Educ. Servs. Corp., 831 F. 2d 395 (2d Cir. 1987). Not all courts use this test. Some courts will be more flexible, some less.
If you can successfully prove undue hardship, your student loan will be completely canceled. Filing for bankruptcy also automatically protects you from collection actions on all of your debts, at least until the bankruptcy case is resolved or until the creditor gets permission from the court to start collecting again."