New partner relocating

Any advice will be much appreciated.

I have separated from my wife and am in a new relationship with someone so lives 100 miles away.
She has 2 children (8&6) and is separated from her husband (Not divorced yet).
I share parental responsibility of my 2 children 50/50.
I would like my new partner to relocate to live with me but am worried that her ex can stop her meaning we cannot be together. I work shifts which means if I relocate I will find it hard to see my children on weekends due to my days off often calling within the week. I only have 2 weekends off in every 8 weeks.

What is the likelihood of my new partners ex being able to stop her and her children moving?
Her parents live near her and she obvious has a job there that she would have to leave.

I support my ex-wife who still lives in our house. She has a part time job but I am still on the mortgage of the house as she couldn't afford it by herself.

I rent but would like to buy with my new partner if she can move.

Is it likely that she could move as long as her ex is promised weekends and 50/50 of the holidays (he is a teacher so it would mean 7 weeks a year)

Thanks

First, if the financial issues arising from your former marriage have not been settled formally and finally by way of a court order you would be well advised to attend to that before you move in with anyone else. The same goes for your intended new partner. Both your financial interests would probably be prejudiced if you ignore this advice and move in together regardless.

Second, it is unlikely that your partner's husband can prevent her moving with the children. If he objects strongly enough he could make a court application in respect of the children and the court may well seek an undertaking from your intended new partner that she will not move unless and until the court has decided the issue. That process can take time - often several months. At the end of the day it is unlikely that a court would prevent your new partner moving but a court application made by her husband could well delay the date upon which she can move.

Thank you very much for your quick response and valuable advice. Much appreciated.

As far as financed being formally sorted, would a written agreement through a solicitor be sufficient? Stating an agreed timeline for splitting of assets so that she has time to get a full time job and get her own mortgage etc. I wouldn't want to jeopardise her and more importantly the children having a place to love in the area we are currently.

Thanks again

>>would a written agreement through a solicitor be sufficient?

No, you need a court order. To understand just how important this is I would suggest you read this

[terry.uk]

Have you actually discussed this with your partner? Moving somewhere new with two children and losing the support of parents and taking on a new job is a big step.

It's something we have discussed a lot believe me. It means I can be a big part of my children's life. If I move there i won't see my children regularly. It's far from ideal i understand but that's the way it is. If she is unable to move because of her ex it adds a significant challenge to our relationship.

Thank you for the clarification