On May 28, Allstate Insurance Co. dismissed its lawsuit against Citigroup Inc. and several of its affiliates after reaching a settlement with defendants.  The suit related to $200 million of RMBS certificates that Allstate allegedly purchased from Citigroup.  Allstate asserted several claims under the federal securities laws and state common law, alleging that Citigroup made material misstatements and omissions concerning the underwriting guidelines used to originate the mortgage loans backing the RMBS at issue, the results of Citigroup’s due diligence, and certain statistical characteristics of the loans, including owner-occupancy and loan-to-value.  The settlement came 15 months after the case was remanded to New York state court and 6 months after oral argument on Citigroup’s motion to dismiss.  Stipulation.