I’m sorry to have to tell you that if the property was in joint names as joint tenants with your brother and your mother dies, then it passes automatically to your brother under the right survivorship. The only time that you or your sisters would have a claim is that if you could prove some kind of influence by your brother which coerced your mother into transferring the property into her name brother’s name.
It was Tenants in Common, then your brother retains his half and your mother’s half passes in accordance with her will, if there was a will, or intestacy if no will.
If have the land Registry title deed, for a restriction under section B: Proprietorship Register which starts, “No disposition by a sole proprietor…” Which will indicate that it is tenants in common and hence, you will be entitled to a share. If that restriction is not there, then it’s joint tenants and your brother now owns the whole property.
If your mother was diagnosed with dementia three years ago, and this was 4.5 years ago it’s unlikely, unless you have medical evidence as to her mental state not being good, 4.5 years ago that you could prove that she didn’t have capacity.
Further, if your brother did pay £7000 towards the property, that would account for why your mother transferred it into joint names same time.
Based upon what you’ve said here I think claim against the property under the circumstances is going to be difficult.
Can I clarify anything for you?
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