My wife is a bit worried after an altercation with her brother who is currently the full-time carer for her mother. Since this has happened, her mother has told her that he is trying to convince her to change her will and leave everything to him. Since her father passed recently, we also have evidence to suggest he has used his bank account to make purchases prior to it being closed. Her brother has a history of being aggressive so my wife is worried he is bullying her into making a will change. My question firstly given the circumstances is, is there any preventative measure my wife can put in place in relation to the will being changed without her knowledge? My mother-in-law also recently had some seizures so her memory is not good and she has some reduced mental capacity. As a result, my wife and brother-in-law applied for a dual power of attorney in the event she is not of sound mind. In this instance, at what point can this power of attorney be triggered? Evidence suggests that my brother-in-law is trying to get the will changed before she has any further seizures otherwise, he may lose his opportunity due to having to have my wife's signature on any transactions once the power of attorney does come into place. Apologies for the long winded description but it's the sort of situation that is hard to put in few words.