Alistair Finch, a seasoned wealth advisor, is assisting Beatrice Moreau with her estate planning. Beatrice, a widow with two adult children from her previous marriage, desires to create a comprehensive estate plan that minimizes tax implications and ensures the smooth transfer of her assets to her children. Alistair suggests establishing a complex family trust, with specific provisions regarding asset distribution and management. Unbeknownst to Beatrice, Alistair\'s brother, Barnaby, is a beneficiary of this proposed trust and stands to gain significant financial benefits from its establishment and management over the long term. Barnaby also has a history of strained relationships with Beatrice\'s children, which could potentially lead to disputes over the trust\'s assets in the future. Given Alistair\'s fiduciary duty to Beatrice, what is the MOST ethically sound and legally compliant course of action he should take regarding the recommendation of this particular family trust?