gosh what a situation firstly i think that due to the fact they already have a parental agreement put in place is it sealed by the court or just a mutual agreement between them?

also even if it is just between them he has lack of interest in maintaining the order so it will work against him, he has shown lack of responsibility and also lack of interest in his daughters life.
if it is taken to court be prepared to be called upon as you have seen the suffering and neglect at this hands and its very wrong that he is more interested in upsetting this little girls mum then paying attention to his daughters needs.
she also has very valid reasons as to why she wants to move. she will also be given vredit for making such a gesture of flying her down and back just to see him. But the problem is how can she be sure he will actually be there to pick her up and etc... very worrying to say the least

i think his better off letting her move on then letting his daughter suffer, if he wants to write her off thats his loss 100%, his daughter shouldnt have to make the effort.
such a sad situation.. reminds me of mine but this is alot more harder..

i also think that his just threatening her and probably wouldnt even take her to court seems as he cant even be bothered dropping his daughter off at home let alone turning up to court for an amount of time thats unknown, he sounds like he would eventually show his true side and probably end up a no show after the 1st session...