If a safe-deposit box is made available by a lessor to one or more persons acting as fiduciaries, the lessor, except as otherwise expressly provided in the lease or the writings pursuant to which such fiduciaries are acting:(1) Must allow access to the safe-deposit box by any of the persons acting as personal representatives who present the lessor with a copy of the letters of administration; and
(2) May allow access to the safe-deposit box by:(a) Any of the persons otherwise acting as fiduciaries if authorized in writing, which writing is signed by all other persons so acting; or
(b) Any agent authorized in writing, which writing is signed by all persons acting as fiduciaries.
