Legally entitled.

[LionNo4]

I,m seperated from my wife,soon to be divorced.My mother has passed away leaving her house to to me and my brothers.Is my ex allowed a share of my entitlement. She is now cohabiting and preparing to marry again.

[paraffin]

Can't see how she would have any claim whatsoever.
Seek free advice from your local Citizens Advice Bureau.

[Maypole]

As per all the other questions on divorce it depends very much on the individual circumstances. Just how divorced are you?! If you have not yet filed a Form E then of course the monies will have to be declared....