I think she was badly advised too, to give up the pension rights which can be one of the most important things for future security, and as previously said, why did she have to sell up .... she could have remained in the house. However it is all too late now, and I think that she should put it behind her, because OK he might be a bad 'un but if she lets it eat her up with injustice he is winning in a way. She can probably get the back child support, but he is going to be a slippery customer and she is going to have to spend money on solicitors and court appearances etc. Might just be best to draw a line, however unfair it might seem and to concentrate on her hopefully more fulfilling relationship.