NEW YORK--(BUSINESS WIRE)--Fitch Ratings affirms the senior student loan notes at 'AAAsf' and the subordinate notes at 'Asf' issued by NorthStar Guarantee, Inc.-2000 Trust Indenture. The Rating Outlook remains Stable for both classes. KEY RATING DRIVERS High Collateral Quality: The trust collateral consists of 100% of Federal Family Education Loan Program (FFELP) loans. The credit quality of the trust collateral is high, in Fitch's opinion, based on the guarantees provided by the transaction's