If I use my inheritence to pay off our joint mortgage, could I get all this money back if we split (ie excluded from the negotiations)? Even If I put it in an account in my name, would it still be classed as part of the joint estate if we split anyway? Is there anyway of protecting this money as 'only mine' incase we split? It's quite a large sum and I know my relative would want me to be cautious and financially protect myself and children as much as possible, so I really don't want it to be put 'in the pot' to be split between us.