Welcome to Just Answer
Thank you for your question.
I am a Solicitor and will assist you.
This type of case in dealt with under the Trust of Land Act. For your ex to have a claim in respect of your property under this Act should would have had to:-
1) paid a deposit
2) contributed towards the mortgage
3) added value to the property through redecoartion / renovation.
I note that you have already confirmed all of the above dont apply - so your ex will have no claim.
Your ex could consider making a Schedule 1 children Act claim for provision for your children - this would be for your children though and not for your ex.
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