<prompt> Human: Hey guys,This isnt actually my situation but my girlfriends.My girlfriends Grandma isnt capable of looking after herself anymore, she had a stroke about a year ago and hence all her finances are being looked after by the aunty and my girlfriends dad.Recently my girlfriends dad has been looking at paperwork and found that the sister has taken about half a million dollars and has spent it on holidaying around the world.My girlfriends dad seems to think that its all over since the Aunty was technically the executor of the estate, even though he looks after the mother 90 of the time while the auntie holidays around the world.Whats the go here? Is my girlfriends dad screwed?  <response>: My girlfriends dad seems to think that its all over since the Aunty was technically the executor of the estateWho is the executor of the estate has ZERO relevance here, because there is no estate yet. Your girlfriends grandmother would have to be dead for that to matter, and even then, the executor has to follow the conditions set forth in the decedents will.If there was a formal Power of Attorney set up to allow your girlfriends dad and his sister to act on their mothers behalf, then there is ABSOLUTELY legal recourse that he can take. When you are acting under Power of Attorney, you have a fiduciary obligation to act in the best interests of the person whose power you are exercising. Your girlfriends father could apply to the court to revoke PoA from his sister, citing breach of fiduciary duty, and would then have legal recourse to sue for damages. 