OP you need to get your DD out of there!
My mum started seeing a guy when I was 3yo moved in with him when I was 6yo he was already touching me before she moved him in, as soon as he moved in I was being raped (full intercourse to the end) every other night. I was made to feel not only that it was normal but that it was my fault.
I eventually got some courage to tell mum when I was about 10 I used language I'd heard from kids on the street though and said "dad has been shagging me" (I thought he was my dad at the time)
Her response I was smacked and grounded for swearing and lying!
I continued to be raped till I was 13yo, there was regularly blood found in my pants etc which was put down to me being accident prone and falling off bike etc, I tried kneeing him in the balls I got punched in the stomach
I tried having a friend over to stay thinking he wouldn't possibly come into my room if I had a sleepover, he did and tried it on with her she told him where to go and told one of my other friends.
Eventually I told my cousin who called police.
In spite of everything people at the time of the abuse would have described me as a daddy's girl, he made me sit on his knee all the time etc I HATED him.
Please OP get your little girl out of this otherwise she will be posting this in 20years time.
You need to put her safety and sanity first, you wouldn't sell her to a trafficker would you? Your loneliness is far too high a price!!
Please