Thank you for clarifying that for me.
Whilst your ex can make a claim in relation to the matrimonial finances, given that your marriage was a relatively short one then his claim is going to be very limited.
You have children which you will be the main carer for and the courts priority is going to be meeting the housing needs of those children. There is not enough equity in your house for it to be sold and the equity divided and the children rehoused without a mortgage.
Given the debts, which would also be reduced against your assets and his pension which is also an asset.
This is a really rough guide:
157k your assets
offset his pension is £108k
Given the length of your marriage and you are the main carer of your children, his share is going to be around 10-20%, or around £10-20k
This is a really rough guide but this is where you should start.
You need to consider family mediation. This is a way of trying to reach agreement without the need for court or lawyers and is actually a prerequisite before an order can be applied for in relation to the matrimonial finances.
Google family mediation in your area and give them a call to self refer.
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