Hi, I'm about to enter into a de facto relationship with a guy who has 2 kids, aged 12 & 15, to a previous partner and no property in his name. I have 2 kids (4&6) also from a previous relationship. I have 2 properties. I will be moving into his mum's home in the country to be together closer to his work. We are planning to get married and have a child. I don't like to think the worst but want to be prepared because I want my kids to have my property. What happens if we split? Will he get half of my assets in a property settlement? Should we do a prenuptial or binding financial agreement? Also worried if that's setting us on a negative path and cause problems? Also, if I die and have a will - will my kids get the house or can he interfere with the will? Should I do a trust fund for them? Hope someone can help me.