(Mark your calendars: RealShare New York, Oct.12, 2011 in New York City)

NEW YORK CITY-Just before the one two punch of Thursday's stock market dive and Friday's ratings downgrade by Standard & Poor's, new market data from Trepp showed that 13 banks failed due to problem commercial real estate loans in July. This makes it the highest monthly figure since July 2010. Year-to-date, 61 banks have failed, and Trepp projects that 100 will shutter by 2011’s end.

The irony in this, says Matthew Anderson, a managing director at Trepp, is that local banks were starting to increase their exposure to commercial real estate once again. But after Standard & Poor’s declined to rate a $1.5 billion commercial mortgage backed security from Goldman Sachs & Co. and Citigroup Inc., Anderson says the remainder of the year may have a chilling effect on CMBS.