the citizen's advice bureau is utterly useless at the best of times and only gives very general advice/signposts people to more specific support (i really don't know why people suggest it)......and most people can work that out for themselves if they use google/forums like this. your daughter needs to check the land registry and see solicitor for advice if she wants him out and a divorce. this will obviously cost money in the long run, but she may be able to get a free 1/2 hour consultation on her household insurance (if she is covered) or via a union if she is a member for initial larger answers. after that, if things continue to be messy, she may have to retain a brief and pay through the nose to be rid of him.
more details may help us to help you - like how long has she had her house, when did they marry/the relationship break down and if there has been any behaviour from him that she could use against him (e.g. domestic violence to get an injunction etc.). p.s. if he has fraudulently created papers to stick him on the deeds, she can report him to the police and get him prosecuted!!!! my hubby is a homelessness officer, so if you have any questions about getting him to move out/his and her rights to the house/changing the locks etc. just ask! (p.p.s. do not tell your daughter to change the locks until she is sure she can legally do this, as in some circumstances this is also a criminal offence! this is why more info would be really useful). if you try hard enough, there will be a solution x