Three years ago my grandmother paid for an addition on my cousins house and moved into the addition. My grandmother recently passed away and left her personal property to my cousin in the will. Does the addition my grandmother paid for on my cousins house become part of my grandmothers estate? or does it just get passed onto my cousin since she owns the property? Should the addition be part of my grandmothers estate to be divided amongst the 6 members in the will?