Hello My mother is elderly and has dementia. She has recently secretly told my son that she is going to change her will to make it so that the house (family house) is not to be sold. My sister is the executor of will and there is only me as the second sibling. We don't believe that this decision is very wise or rational. I live in another state and my sister has her own property which will then leave the family home empty and vulnerable to squatters and or vandals should she pass and this will of hers be in place. We would have no option but to sell the house. We both need the money and would rather it be sold. What can we do? Can we contest or dispute the will when our mother dies?