La. Stat. tit. 6 § 1124
No financial institution or officer or employee thereof shall be deemed or implied to be acting as a fiduciary, or have a fiduciary obligation or responsibility to its customers or to third parties other than shareholders of the institution, unless there is a written agency or trust agreement under which the financial institution specifically agrees to act and perform in the capacity of a fiduciary. The fiduciary responsibility and liability of a financial institution or any officer or employee thereof shall be limited solely to performance under such a contract and shall not extend beyond the scope thereof. Any claim for breach of a fiduciary responsibility of a financial institution or any officer or employee thereof may only be asserted within one year of the first occurrence thereof. This Section is not limited to credit agreements and shall apply to all types of relationships to which a financial institution may be a party.
La. R.S. § 6:1124