thanks for all your help.
of course in a real world, Cousin should have pressed solicitor. However, being a quite person, they simply nodded in agreement and never questioned further. I was simply trying to get some info, so that i can not only give pointers to Cousin, but perhaps even write down questions to be asked when going back to solicitor.
Position now is that roof of old house has collapsed in. The house is not fit for any form of habitation and relative will be kept with cousin until she dies. There is no question of relative being thrown out on the street.
I also raised question of trying to repair/restore house, but Cousin dies not have funds. Low paid job and plenty own debts, such as mortgage and car loan. There was a small bit of land with the house and Cousin could sell a site to restore house, but again I understand that relative must sign off on this.
Again, thanks to all. I now have a few pointers.
What are the problems?
Can we transfer the right from unihabitable house to Cousins own house?
how else can we deal with the situation as the house as it stands is not an assett, but a liability?
Will report back later