 On April 30, 2010, Union Bank, N.A., acquired certain assets and assumed certain liabilities of Everett, Washington-based Frontier Bank in a purchase and assumption agreement with the Federal Deposit Insurance Corporation (FDIC).Twelve officers and corporate directors of Frontier Bank are facing a $46 million damage lawsuit filed by the FDIC.Also in April, Union Bank acquired the assets of Tamalpais Bank in Marin County, including seven branches.