New York Attorney General Eric Schneiderman is investigating Standard & Poor’s to determine whether it failed to follow its own methodology in rating commercial-mortgage bonds in order to win business from banks, Bloomberg News reported Friday, citing two people with knowledge of the matter.

The unit of McGraw Hill Financial Inc. (MHFI) is facing scrutiny on six such deals it graded in 2011, said the people, who asked not to be identified because the probe hasn’t been made public. Ed Sweeney, a spokesman for S&P in New York, declined to comment to Bloomberg, as did Matt Mittenthal, a spokesman for Schneiderman.

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