Ask an Property Solicitor. Get an Answer ASAP.
Hi thank you for your message, please note that I will look to provide an accurate but nevertheless speedy reply to your inquiry. I am sorry to hear about your situation but I will endeavour to help you today.
Yes intestacy is irrevocable because it means someone died without a Will they cannot make a Will once dead. Regarding the situation it seems to me you need a probate litigation solicitor to look at what has happened in terms of the estate and go from there. I recommend the following: https://www.kbl.co.uk/personal/litigation-disputes/probate-litigation/
I trust this assists
You would have to hire a private detective to find her I am afraid. In the alternative you could engage a trust lawyer to apply to the court to add a new trustee and remove the existing trustee(s). I trust this assists