(1) Contracts on behalf of the Bank may be made, varied or discharged in accordance with the succeeding provisions of this section, and all contracts so made are effectual in law, and are binding upon the Bank and on all other parties to the contract, their heirs, assigns, executors or administrators, as the case may be.
(2) A contract which, if made between private persons, would be by law required to be in writing under seal may be made, varied or discharged in the name and on behalf of the Bank in writing under the seal of the Bank.
(3) A contract which, if made between private persons, would be by law required to be in writing and signed by the parties to be charged therewith may be made, varied or discharged in the name and on behalf of the Bank in writing signed by any person acting with the express or implied authority of the Bank.
(4) A contract which, if made between private persons, would by law be valid although made by parol only and not reduced into writing, may be made, varied or discharged by parol in the name and on behalf of the Bank by a person acting with the express or implied authority of the Bank.
(5) Nothing in this section invalidates a contract executed on behalf of the Bank by a duly appointed attorney of the Bank if the contract would be valid if executed by the attorney on his or her own behalf.