Bubbles, dont panic, your situation is similar to mine. Firstly, legal aid or not, you can change soliciter, you need to feel that they are on your side , youve not had good advice.
Find a differant soliciter, or change to another in their practise. He is abusing you emotionally . Ask them to write to him stating the enviroment is not good for the dcs and what living arrangements will he be making now your marriage is over. Start divorce proceedings.
Get to the jobcentre and explain, make an application for income support. Also apply to tax credits .Explain your marriage has broken down, they have seen it all before.
When you get income support you are also entitled to help with the interest on your mortgage , 100 per cent of it in fact , so if you change your mortgage to interest only you dont need to worry about mortgage payments.
Hes saying he wont go, but he will, but that depends on what you do now. Have you told your freinds and family ? If not, do, get all the support you can.
Do NOT move into the kids room , have your family and freinds visit, push him out, make him uncomfortable, dont wash his clothes dont cook his meals.
If he yells at you , call the police. He will go, and its entireley possible for you to keep the house, at least for the next few years. Dont forget hell be paying maintenace , you can ask the court for a order so he contributes towards the mortgage ect.
Start copying bank statements, close any joint ones, dont underestimate how low they can stoop . Stand your ground.
Your lawyer sounds shit.