ORS 126.857: Third person’s duties in dealing with custodian.

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 ORS 126.805 to 126.886 for, any act of the purported custodian;

      (3) The validity or propriety under ORS 126.805 to 126.886 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 beneficiary delivered to the purported custodian.