I'm full guardian of my mother who is diagnosed with Alzheimer's. My mother made me sole beneficiary on a simple will, with her adopted daughter next in line, if Mom outlives me. Do I have to keep her informed about Mom's worth? When Mom passes, do I have to disclose to her adopted daughter what I inherited? This woman doesn't help me care for Mom, but she's always calling for updates.
Once mom passes, you can choose to have a final short conversation when she reaches out to you inquiring.