How Soluable is Coast Bank of Fl.?

Answer 1

They are a publicly-trade corporation:
Trading Symbol CFHI; Exchange NASDAQ

Coast Bank of Florida is a regional bank serving the Tampa Bay area and is a wholly owned subsidiary of Coast Financial Holdings, Inc. Coast Financial Holdings, Inc. is a bank holding company and its common stock is traded on NASDAQ National Market under the trading symbol "CFHI".

Through its banking subsidiary Coast Bank of Florida, Coast Financial Holdings, Inc. operates full-service banking locations in Pinellas, Pasco, Hillsborough and Manatee counties. Coast Bank of Florida provides corporate and personal banking services to individuals and small to mid-sized businesses from its main and branch office locations. Coast Bank also maintains stand-alone Coast branded automated teller machines at various locations in the Tampa Bay area and is a member of an ATM network that provides Coast clients with no service charge access to 32,000 ATM’s nationwide.

...this would indicate that they're 'solvant'...but no guarantee!