Backstory to keep it simple and clear:
I worked with my family in our family business abroad and I came to the UK to open up an account for the money to go into as a means of payment from different companies. The account was opened in 1980 solely in my name however money was added/taken out whenever needed by my siblings and father. A sanction was placed on the account up until 2015. I married in 1990 and it was horrible, constant abuse and differences and we operated many times in between until we divorced in 2012. We divorced in the UK as we were both living here with our two children and received a decree absolute but no financial order was done. In 2015 I had purchased my first property within a few months of the sanction being lifted from the account. It was always the intention that the property was not solely mine, but my three siblings and father even though it was in my name (We are extremely close and mutual trust is strong). In 2016 I re-married my ex-partner.. One of my children were sectioned due to mental illness and my other child had left home to live far away. My ex-partner said if we are together we could try to work things out between all of us. I stupidly agreed and thought nothing of him wanting the property. The various abused occurred again and I took out a non molestation order against him. He was removed by the police and immediately he filed for divorce. Within a week he was housed in an adapted flat by the local council. Between himself and his lawyers, they are asking that he has control of sale of my property, his legal fees are paid, the estate agent is paid and then a 50/50 split. I have asked lawyers for advice and have been told it looks like a 50/50 split.
This is completely unfair as he did not contribute to the purchase of the property, the deed is solely in my name, the loan is solely in my name and all the bills are too. He refused to help me support our children and the house yet now he is wanting half of it. The money used to purchase the house was not only my money, it belonged to my family. He played me for a fool again and I am completely lost. I have tried to buy him out, again with family support but he is not even willing with 100k. He is wanting exactly half of my property which is valued around £400k, wanting to re marry and has refused to put any new property he buys in our childrens names. He has been/still claiming disability benefit (he is more than capable of working), pension credit and housing benefit.
I would be extremely grateful if a barrister could share his suggestions/opinions regarding my situation.