Estate Law Questions? Ask an Estate Lawyer.
Thank you for your question.
I'm sorry you lost your friend.
Her interest as a beneficiary of a trust set up by her mother is not part of her estate, and her will cannot direct it to be given to anyone. What happens to her interest as a beneficiary of the trust is controlled solely by the trust. Any funds that she received from the trust prior to her death are part of her estate and do not get refunded to the trust.
I am sorry this is likely not the answer you had hoped for, but it would be unfair to you, and unprofessional of me, not to provide accurate information.
I hope this information is helpful.