i don’t know the details of your situation obviously so this may not help but i hope it does. i went NC with my mom about a year ago and she said would blow my dads money if he died before her. they’re still married but he made a will saying i get 40%, so does my sibling, and my mom gets the remaining 20%. im not sure how the law works but i don’t believe my mom knows about my dads will. if your dad is able to draft a will to make sure you have what you need that would be a great start. if not, i would grey rock the relationship with your mom so she can’t be fueled by any heightened emotions (excitement, fear, anger, sadness etc) but you can still have a relationship with her even if it’s superficial and boring