NEW YORK--(BUSINESS WIRE)--Fitch Ratings has upgraded one and affirmed five classes of Vornado DP LLC Trust 2010, series 2010-VNO commercial mortgage pass-through certificates. A full list of rating actions follows at the end of this ratings action commentary. KEY RATING DRIVERS The upgrade reflects the stable performance of the underlying collateral properties and the collateral amortization since issuance. Occupancy has remained relatively stable with only a slight decline from 96% at March 2