US Department of Education Student Guide: Federal Perkins Loans:

Department of Education Student Loan Ombudsman: The Ombudsman's office is a resource for borrowers to use when other approaches to resolve a student loan problem have failed. If after notifying the Perkins loan office in writing, the dispute can NOT be resolved, contact the Ombudsman's office.

Stafford Loan Cancellation for Teaching Information

Tax Benefits for Higher Education