My name is ***** ***** I am a NSW Solicitor. Thank you for your question, and will do my best to assist you with your question. Please understand this is not legal advise Please understand this is not legal advise but a guide to assist you.
You can make an application in the court to get Guardianship over your mother and have the POA set aside that your sister has.
You need medical evidence that she is better in a nursing home and also a history of her accidents since she has been in your sisters care to show that she is not being looked after
You have to get your own solicitor in this case the one acting for your sister will have a conflict of interest. Once you start proceedings then you can issue a subpoena to get documents. Also the Solicitor has been negligent because you can have 2 people on a POA.
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