If you want to move out of the property with the children to “escape” then simply up sticks and leave.
If there has been mental abuse but no physical abuse, you can always apply to court for a non-molestation order to prevent him coming within 100 metres of you and an occupation order for him to move out of the house.
He would then be responsible for child maintenance but you would be responsible for the mortgage and the bills.
Once you have started divorce proceedings (not at all difficult to DIY) you can also apply for a financial order in respect of the eventual division of the marital assets and spousal maintenance.
You have a one year old child and therefore Unless a sale of the house produces enough money for the parent looking after the child(ren), the resident parent, until the youngest reaches 18 and produces a surplus for the non-resident parent, the sale of the house is not on the cards until the youngest child reaches 18.
Both parents are under a duty to provide a home for dependent children until they reach 18. Only then would the house be sold.
It would not matter whether the house was in his name or joint names.
If it is in his name only you need to register a Matrimonial Home Right notice against the property. It is free. You only do that if it is in his name only.
I said earlier that you can apply to court for a non-molestation order to prevent him coming within 100 m of you and an occupation order for him to move out of the house.
Here are the government webpages on exactly this subject. https://www.gov.uk/injunction-domestic-violence
There doesn't actually have to be physical violence per se because there can be coercive behaviour for example as you will read in this excellent article: https://rightsofwomen.org.uk/get-information/violence-against-women-and-international-law/domestic-violence-injunctions/
This is one of the very few areas of law for which legal aid is available so it would be worthwhile seeing a solicitor assuming you can.
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