My grandparents had an AB Trust, and both were supposed to split assets equally between all their children and grandchildren. After the death of my grandmother, my grandfather created a separate living trust naming only his children as successor trustees. He did not transfer several pieces of real estate into his trust. A successor trustee subsequently transferred this real estate into his trust (decades after his death), and then into her own name (since she was successor trustee.) Is it legal to do this? Thank you!