In general, I believe that people should be open about inheritance and their intentions when they die - money and property can cause huge arguments, family rifts and bitterness.
I am now reconsidering an idea which I floated on here some time ago, which is that DD1 and the DGC should be among the class of potential beneficiaries, but that anyone who is estranged before my death will be excluded. It would have to be tightly drawn, but would include regular meetings (say twice a year), monthly FaceTime, the exchange of cards at birthdays, Christmas etc, and attending my funeral (unless under 18).
But then I think am I using money to be controlling (I know that I would be and it makes me look desperate) and do I actually want them to be in contact with me just for money? If they were in touch they would resent me and if they weren't in touch they would also resent me, so it's a 'no win' situation. And what if they decide they don't want to be in touch, in any event, which I suppose is what would be the correct response from a moral standpoint? Then I would think they must hate me so much that they they can't even put up with me for a few hours, even though there would be a financial reward.
On balance, I think LB would say don't contact me, because he likes to maintain power over DD1, which he is doing through the classic methods of cutting her off from family and friends and not allowing her access to money. Also, no communication with the outside world which is unmonitored. Just before we fell out, she said that she had 'emptied' her bank account and the money for the pedigree cow, which I didn't buy in the end, was to go to LB's account. I also recall that she asked me to stop her allowance after she moved in with LB which puzzled me, given that they have asked for money - but large amounts, not small amounts. Then I concluded that LB didn't want DD1 to have access to her own money, as this gave her a measure of independence.
In fact, I know that DD1 will just do what LB instructs her to do and he may well not want her or the DGC to have any potential financial independence, which makes me think that is a bad idea to exclude them entirely. DD1 would even let her DC miss out rather than go against LB's wishes. And they would hate me for it if they did see me. I can just imagine them saying to the DGC that their Granny is a poisonous old bitch, but you need to smile at her and pretend to be nice....
I was discussing this with my new therapist last week and she said that a will is a very powerful document. And of course sh is right, because the person is speaking from beyond the grave with no right of reply. I don't want to cause hurt from beyond the grave to those I love.