My husband and I have just agreed to separate. It's all amicable but we have no idea how to work out what's fair. He wants me and our children to stay in the house but I'm worried I won't be able to afford to take on additional mortgage to buy him out. He will need money to be able to get his own place. I've been advised to go to mediation but that's expensive and I'd like to think we can sort between us. I'm going to call citizens advice but can anyone who's been through this offer any advice?