California Code, Financial Code - FIN § 1321

Any real property not held for any purpose permitted by subdivisions (a) and (e) of Section 1320 shall be sold whenever the same can be sold for an amount sufficient to reimburse the bank or trust company for all loss arising out of the loan for which such real property was security or arising out of the original investment. A bank or trust company shall not by the retention of any real property acquired pursuant to this section engage in any business not authorized by this division except to the extent necessary in the orderly liquidation of an indebtedness owing to the bank.