Maryland Estates and Trusts Section 13-316

      A third person in good faith and without court order may act on the instructions of or otherwise deal with any person purporting to make a transfer or purporting to act in the capacity of a custodian and, in the absence of knowledge, is not responsible for determining:

            (1)      The validity of the purported custodian's designation;

            (2)      The propriety of, or the authority under this subtitle for, any act of the purported custodian;

            (3)      The validity or propriety under this subtitle of any instrument or instructions executed or given either by the person purporting to make a transfer or by the purported custodian; or

            (4)      The propriety of the application of any property of the minor delivered to the purported custodian.