Thank you for the question and I am sorry to hear about this matter. If you have it in writing that he is willing to meet your legal fees then I would just go and hire a solicitor and bill him for the services. The outcome of this will depend on if you are married or not. If you were not married, then you don't really have "joint assets" unless things were bought together i.e. a house, car etc. In that case you should then qualify what you own (half the value of your joint property and monies in your accounts which was yours) and be asking for this. You have no other legal ties. However, if you're married all of his savings, pensions, assets, property. etc. will also partially belong to you as these will be considered matrimonial assets. He will not be able to take you to court for unreasonable behaviour if you don't get back to him quick enough, that is nonsense! If you were married then you are entitled to 50% of the matrimonial assets these include any of his saving and pensions etc. he obtained during the course of the marriage even if you did not contribute to this. If you were married and were financially dependent on him, you would likely be granted spousal maintenance, so DO NOT sign anything without obtaining independent legal advice as you will likely be "Duped" into. selling yourself very short. Again, if you were married, the money he is using is also yours and your solicitor will be able to deal with this. Go hire someone as you will have an entitlement to this money and also in writing that he would pay your fees. Then I would advisee blocking contact from him and have everything go through your legal representative.
I shall provide you with a helpful link that will assist you in finding a solicitor/representative near your local area. This will provide you with someone nearby your area who can assist you if required.
I hope this information proved helpful. You will find a local solicitor who deals with these matters on the law society webpage which is as follows;
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