My mother died in May 2011. In her will, she left everything to be divided between 3 out of 4 of her children. My sister and I agreed that our other brother should also get a share and I advised him to contest the will if he didn't get a share. The included brother was advised of this and did not object My mum named my sister as executor of will "...or should she be unwilling or unable to accept such appointment I appoint my son [myself, named]" Mum directed that her home be sold and the proceeds divided equally My sister went into a deep depression after mum's death as she had been her carer at the time. My sister now also is showing signs of dementia. Last year, she allowed her daughter's ex-boyfriend to move in free of charge in exchange for some work on the house. Instead, he trashed the place. My sister also gave him mum's car which he also trashed. The house has sat there empty for 8 years now and almost 5 years since mum's death. The will has not been probated. What can I do?