By Karen Freifeld and David Mildenberg
Ambac Assurance Corp. sued Bank of America Corp. over $16.7 billion of mortgage-backed securities, saying the bank’s Countrywide Financial Corp. unit fraudulently induced Ambac to insure bonds backed by improperly made loans.
Ambac found that 97 percent of 6,533 loans it reviewed across 12 securitizations sponsored by Countrywide didn’t conform to the lender’s underwriting guidelines, according to the complaint filed yesterday in New York state Supreme Court. Many of the loans were made to borrowers with limited or no ability to meet their payment obligations, Ambac said.