NEW YORK--(BUSINESS WIRE)--Fitch Ratings has affirmed 14 classes of Morgan Stanley Capital I Trust, series 2007-IQ15 (MSCI 2007-IQ15) commercial mortgage pass-through certificates. A detailed list of rating actions follows at the end of this press release. KEY RATING DRIVERS Fitch modeled losses of 11.4% of the remaining pool; expected losses on the original pool balance total 16.2%, including $166 million (8.1% of the original pool balance) in realized losses to date. Fitch has designated 31 l