Residential Funding Company, LLC (RFC), a longtime aggregator of residential mortgage loans and issuer of mortgage-backed securities, has recently filed a series of lawsuits against banks and other financial institutions from whom RFC purchased mortgage loans. The lawsuits, which already number in the dozens, have been filed in federal court in Minnesota and assert that the defendants violated their agreements with RFC by selling loans that were not properly originated or underwritten. RFC contends that it is entitled to have these loans repurchased or, where that is not possible, to recover contractual damages sufficient to make it whole.