My de facto partner and I met in Dec 2007 - in January 2009 we became financially tied and purchased a house together. At the same time, I already had a house (purchased in 1999) in which I had $500k equity and he had two homes that were still owned by himself and his ex. My daughter lives in my home with her partner and my two grandchildren - that arrangement was already in place. Late in 2010, he completed a property settlement with his ex and he gave her both properties, walking away with $20k from the relationship. However, during the period 2007 until the properties were sold in 2010 we paid a lot of money to his ex to assist in the mortgage and also in Child Support. Re my house and the property we bought together - combined we financed both properties - the one that we bought together and the one that I owned - in addition to that 'combined' we paid everything to do with his daughter from his previous relationship - Child Support, every holiday, air fares, school cost, medical costs etc. We also paid money to help look after his mother. My daughter and her husband earned minimal money and did not pay rent, this was an issue for my partner although the arrangement was one that he knew was the case when entering in to the relationship - My daughter also suffers extreme mental illness hence my need to assist financially in making sure she was okay. So now we are separating, and although he walked away from two houses he now wants to take me for mine. According to him only the money that he contributed to my mortgage counts as it is against something tangible however the money that I contributed to child support etc etc will not be taken into account. I just want to split knowing that we both contributed equally - share the house that we purchased together and leave mine alone. I am not sure where I stand but, for obvious reasons, am quite worried that I will lose my home. I would like to add that the mortgage on my home was $1036 per month and the money we paid in Child Support etc was the same if not more. Any help will be well received.