thank you for all your responses. Yes, I'm in the UK and this situation has been going on since 2016 when daughter was raped by the abusive ex partner, then became pregnant as a result. The pregnancy went horribly wrong and she almost died. She was placed in an induced coma and the baby was delivered 10 weeks prematurely. She spent three months in hospital and whilst she was in there, and the baby was in intensive care, the abuser assaulted her daughter from her ex husband. The daughter reported it to a teacher at school. Social services became involved. Three weeks after she came home from hospital, still barely able to function, social workers came in mob handed with the police, arrested the abuser and snatched the baby out of her arms whilst she was trying to feed him. The children were all given to the abuser's sister.
There followed a year of court appearances when the social worker, a young woman who appeared to be after promotion, managed to turn the case around and suddenly my daughter was the abusive one. I wouldn't have believed that this was possible if I hadn't seen it with my own eyes. I couldn't believe some of the things that she said about my daughter.
For those who don't know the system, an SGO is a Special Guardianship Order and SG is Special Guardian.
It is truly an appalling situation, made even worse by the fact that the Guardian for the boys refused to allow any contact and we had to apply for a Child Arrangements Order. When we did, another CAFCASS team assessed all parties and we were horrified to find that the Special Guardian has a criminal record for fraud and assault which somehow was not mentioned in the original case. We also found that the abuser has a criminal record as long as his arm. If my daughter had known that she would never had started a relationship with him in the first place. By the time she had had two children with him, she was really afraid of him and didn't know how to get out. In the end, once the children had been handed over to his sister, he threw daughter out into the street anyway. He is a truly appalling man who has access to the boys whenever he wants. Fortunately we understand that he's not that bothered.
This whole scenario has virtually destroyed our family, apart from putting us in serious debt trying to get the contact sorted.
What to do about the contact visits, though, I still don't know. My daughter only has limited parental responsibility over the boys so she can't organise any intervention for the older boy and the Guardian refuses to communicate with her.