In good form yesterday, Mum decided to open up her deed box and have a look at her will, and gave it to me to read. I knew what was in it, of course, she's told me enough times, and it's very straightforward. If she died first then everything to Dad with him as executor. As he died first, then everything to me as the only child. In the event of Dad pre-deceasing her then the appointed executors are 2 (any two) unnamed partners of the firm of solicitors that he used to work for - in a town a long way away from where we all live now. Of course, they will also have to be paid for their services. Mum has decided that she wants me to be her executor instead. She says that Dad sorted out their wills years ago (it's dated 1984) and she doesn't see why they should do it now (Dad died almost 12 years ago), and get paid for doing it. Would it need her to make a new will to change the executors, or can she do it as a codicil to her existing will, and have it signed and witnessed by two other people? And, with a diagnoses of dementia, would it even be legal for her to do it now?