Before you boyfriend moves in with you I would definitely consult a solicitor, and take his advice very seriously. It looks as if the government are thinking of bringing in all couples and even making a will in favour of your children might not necessarily have the effect you intend if new legislation is passed. Make sure that your Will is written by a solicitor, who might be one of the executors, along with your children, and make sure your Will is stored with them so that it cannot be destroyed by your boyfriend if the relationship goes pear-shaped. I don't know what age your children are, but I would also talk to your solicitor about possibly putting the house in trust for them if such a situation might be appropriate. Everybody hopes their relationship with their partner will be permanent. The reality, sadly, is often be very different, and you will prevent a lot of anguish and heartache now if you can bring yourself to face the possible realities of a breakup now, rather than trying to unravel things if it actually happens. You have only to read the number of posts about relationship break-ups on this site and the tangle which people experience trying to extricate their financial affairs to get an idea of what could happen if things go wrong.