CRA confirmed that "proper notice" of payment to a minor beneficiary by way of issuance of a promissory note can be given to the beneficiary's guardian, by referring to a statement in Question 2 of the 2010 STEP Round Table, 2010-0363071C6 that:
In case of a minor beneficiary, the trustees may advise the legal guardian of the child's property of [sic] this right.