When someone dies or becomes incapacitated, the trust they created doesn’t administer itself. A successor trustee steps into a role with genuine fiduciary duties and real personal liability for mistakes — which is exactly why being named trustee, while often intended as a mark of trust and respect, should be treated as the serious responsibility it legally is, not simply accepted out of family obligation without understanding what it requires.

A trustee’s core obligation is the fiduciary duty: acting solely in the best interests of the trust’s beneficiaries, not their own, and administering the trust exactly according to its written terms rather than what the trustee personally believes the deceased would have wanted. This duty applies whether the trustee is a professional fiduciary or a family member serving for the first time, and courts hold both to essentially the same standard.