NEW YORK–(BUSINESS WIRE)–Fitch Ratings has affirmed all classes of Bear Stearns Commercial Mortgage Securities Trust series 2007-PWR18. A detailed list of rating actions follows at the end of this press release. KEY RATING DRIVERS The affirmations reflect sufficient credit enhancement relative to pool expected losses. As of the November 2016 distribution date, the pool’s aggregate principal balance has been reduced by 48% to $1.3 billion from $2.5 billion at issuance. Per the servicer reporti
