Because both legal and beneficial ownership of securities for which advice or services have been provided, must belong to the taxpayer claiming the deduction, the annuitant of an RRSP cannot claim a deduction for mortgage administration fees paid by him in respect of the RRSP under s. 20(1)(bb), although administration fees which relate to the overall direction in management of the affairs of the plan trust may be deductible under s. 18(1)(a).