The Marriott Bonvoy terms state…
Death. In the event of a Member’s death, the Company may, in its sole discretion, allow unredeemed Points from the deceased Member’s Account to be transferred to a family member or a friend who is an active Member upon the Company’s receipt and review of all requested documentation and communications. Elite Membership Status, Lifetime Membership Status, and the related benefits, including, without limitation, Elite Night Credit, will not transfer to the recipient of the Points.