The language issue is obviously a problem. Even if she is confused by dementia and her reality is out of step with the world's version, she needs to be able to communicate with those caring for her. Are there places with English speaking staff anywhere within a reasonable driving distance?
Then there's the care home problem as a stand-alone, regardless of language issues. I don't know if this will help, but my mum also has a complete lack of insight and would never agree to residential care, or any kind of care come to that. Every bit of support I gave her had to be invisible, and if she as much as got a hint fireworks would fly.
But she was going to be sectioned if I didn't somehow magic her into a care home.
I visited several and the quality was far from consistent. There was also the question of what was right for my mum. One stood out and that was the one we chose.
When a place came up, I lied and told her we were going to take a trip (she likes to travel) and stay in a lovely hotel. We went and I left her there.
It sounds hard, but my choices were somewhat limited at that point. Get her into a really fantastic care home somehow, or watch her being taken into a mental health unit against her will. So I did what I had to do. It wasn't easy and the stress during the build up probably wiped a few years off my life expectancy, but I made it happen.
The point I'm getting to is this, my mum still, months on, doesn't realise she's in a care home. Her room is her apartment as far as she's concerned and she's aware that she can't leave and sometimes this bothers her. But she has no real idea of what it all means.
To give you some context of where she is on her 'journey' (I don't know why, but I'm starting to hate this word!), up to the point of going into the care home she was still managing to get a bus into town to buy a meal in a cafe. The same meal in the same cafe almost every single day (sometimes she'd forget to go), and she was starting to get a little bit lost, but on the whole she was managing to do this. So she wasn't completely unaware. Yes, I think that's what I'm trying to explain. She recognised me most of the time too and someone who didn't know her wouldn't have necessarily picked up on the Alzheimer's during a small talk kind of a chat, certainly not if they weren't in a position to verify what she was saying against facts.
Even today, if you asked her, she would tell you that she is very healthy and that she would never go into a care home. She would say this sitting in the care home.
So please try not to worry too much (impossible, I know, but still, try... ). If the live-in carer doesn't work out, there might well be a good care home not a million miles from you and your mum, like mine, might no longer have the capacity to look at her situation and see it for what it is.