Unfortunately, without the additional information requested in my first/previous response, I will not be able to give you detailed advice to your question, but I will be able to give you a general answer, which I hope will be of assistance. If you are able to supply the additional information later, please do so and I will then come back to you with a more detailed answer.
There are two types of LPA.
Health and welfare & Property and financial affairs.
If you do already have signed LPA documents, then as your mother now has dementia you would need to register the documents with the Office of the Public Guardian before you can legally use the .
If you do not have legally signed LPA documents, then it is to late to obtain them. Instead, you would need to apply to the Court of Protection to be appointed as a “Deputy” for your mother. Once that has been granted you would then act like an attorney.
With all the options above, you can only access money from her accounts for her personal needs. You have no legal right to take anything for yourself or for others to spend, that is stealing form the accounts. As attorney you must keep detailed records of all transactions made and these can be audited to ensure nothing has been taken.
I hope this helps answer your question?
Thank you for using Just Answer and for allowing me to assist you with your legal enquiry. I am pleased I was able to be of assistance. Please do not hesitate to come back to me for further advice on this or any other legal matter. It will be my pleasure to be able to assist you again.