OP…
I’m sorry you’ve had an upsetting day with this news. But this:
“He failed the parenting assessment. It was felt he wasn't emotionally stable enough. There was also concern around arguments with the mum in front of the DC.”
So he fails his parenting assessment partially because he’s fighting with the baby’s mum. They looked at these fights and STILL determined the mum was the safer parent. Ok. And now she’s been determined unfit to keep the baby either. That baby loses mum and placement on the same day. Just out of curiosity, you didn’t give your nephew money for this solicitor, did you? This solicitor who thinks he can challenge the parenting assessment?
Because it’s sad, and it’s upsetting for you, but if you care about this baby, not what your nephew wants, not just keeping the baby in the family, but what’s really best for giving your grand nephew the best possible life… then two people, one who failed his parenting assessment and the other who got her baby taken off her and kicked out of a mum and baby placement, aren’t maybe the best start in life for him. Maybe let him go. Mum and baby placements are like gold dust. The mum had her chance and sadly, it’s gone. Your nephew had his chance and sadly, it’s gone too - and there’s always some excuse for him (the DV was when he was young, the bad mental health was because of his mum, I don’t know what excuse there is for his fights with the baby’s mum but I’m sure there’s something, according to him).
Just… my best advice is, in case you are or you have, do NOT give your money to your nephew for this magic solicitor to try to pay for his mistakes, and buy back his child. He has less than a snowball’s chance in hell and that’s IF he’s turned his entire life around, living it perfectly, found and hired this solicitor himself, fighting this fight on his own volition, supporting any previous children he has, etc. Without all that, he has no chance.