Ask an Property Solicitor. Get an Answer ASAP.
Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
Who actually owns the property?
Who paid for the house?
In fact he cannot prevent his mother from severing the Joint Tenancy - if she wishes to do it she can simply do it and it is effective.
However if she does this and has to go into care then yes the Local Authority can force the sale of the house so that her half can be used to pay for her care (this assumes that your husband no longer lives there - if he does live there then the sale cannot be forced)
An alternative would be a Declaration of Trust confirming that the house is held by he and his mother on trust that his father has the right to live in the property so long as he wishes to do so.
I hope that this is of assistance - please ask if you need further details
As Tenants in Common they each own their own half - so your husbands share is safe
What exactly do your husband and his mother want to happen when she and his father die?
In fact if his mother wishes to leave her share to her grandchildren then the most appropriate way forward is to sever the Joint Tenancy and for them each to own their own half so that she can leave it as she wishes in her will.
Your husbands share will be safe
Any local solicitor should be able to prepare a Declaration of Trust for about £200.
So long as your father remains in the house it will be safe if your mother needs full time care outside of the house
No it can all be done in one document