freewillsmonth.org.uk
Only applies to England and Wales but worth a look if you do not have a will . As an avid "Heir Hunters" viewer I see how sad it is when your money goes to someone unknown to you but somehow related and perhaps neighbours have looked after you and been kind to you and get nothing .
Estranged Son and Future Granddaughter
To think that London, or anywhere else for that matter, does not belong to any one demographic