Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
On what basis do you wish to challenge the Will?
Just for clarity then - the partner received everything on the death of your ex - although the older children had tried to take it?
You do understand that the daughters are under no legal duty to share the money (and that there is an extra charge for phone calls)
I am sorry but the simple fact is that whilst the partner and the two older chidlren have behaved badly in so many ways they have none of them done anything illegal.
There is no basis on which you will be able to challenge the Will of the partner.
However you will be bale to obtain a copy of it, and details of the Executors, by using the Search process here
I am sorry not to give you better news - please ask if you need further details
Sadly no it is not illegal. Immoral certainly, illegal, no.
I hope all goes well (and for the most part agree with your quote)
They may well have been - but it is still not an offence sadly