Jennifer; This is not a good start to my first use of this site. You have misunderstood; not least because I was not discussing my mother and at no point mentioned her. If this is the tone used to try to 'help' relatives who use this site for help and support then I would rather not avail of it. FYI the person managing the finances of my relative is a Solicitor who we feel as a family has been very negligent in managing my relatives money and not at all interested their well being. We have the full support of the GP and are following their advice; I think that I will continue to discuss my concerns there.
I'm really very sorry - for some reason I thought it was your mother, and for that I apologise.
OK - so your relative has a professional acting at attorney. You might want to have a look for posts made by Jancis
http://forum.alzheimers.org.uk/memberlist.php since she was in an almost identical situation although in that case she was dealing with a Deputy.
And I'm also sorry that you didn't like my tone: I, as much as you, can only go by what you write which is why I apologised upfront if I had misunderstood what you said. Having said that, I think this will be an extremely hard thing to do without the cooperation of the attorney, not least because of the financial side of things.
While it's good you have the GP on your side, you should probably also look at the Mental Capacity Act Code of Practice if you haven't already, which can be downloaded here
https://www.gov.uk/government/publications/mental-capacity-act-code-of-practice as it outlines the sort of things that you may or maybe not able to do.
Something you might want to consider is if this my be a situation where you could apply to be a Deputy for Welfare. These aren't granted often (in England at any rate) but it might be possible to apply to the court for a single decision about where your relative should live.
Best of Luck.