NC'd for this.
Parents have recently died and have three daughters (incl me). They fell out massively with sister A a few years ago. Sister B is feckless drug addict and problem drinker. Five years ago they gave B a large sum of money to put a deposit down on a flat. This was pissed up a wall and she ended up in rehab. I haven't had much to do with her since then but I gather it is business as usual. Sister A I am in fairly regular contact with. We live far apart, but get along.
So it turns out parents have left everything to me. I feel a bit uncomfortable about this. I am the most well off out of the three of us and own our home outright, whereas both sisters rent. I feel it would be right and fair to split the money between the three of us, but am concerned about giving a large (6 fig) sum to sister B. Despite her behaviour, she is technically an adult and I think I would have to give her the money or not, rather than give it with caveats. I don't have enough of a relationship with her to steer her towards buying somewhere and she lives in London so I'm not sure she would be able to afford to buy outright or be able to get any sort of mortgage. Sister B says money given would complicate A's benefits and that we should set the money aside for future "bailing out" or split it in half between us. I'm not comfortable with setting myself up for a lifetime of stewardship of A's difficult life. I did 20 years of that crap and don't see the point unless she actually wants to sort herself out. I don't live near her, I have children now (stopped running after her when eldest started school as completely ran out of time and energy for a pointless cause). That sounds callous, but there you go. Neither sister attended the funeral, which pisses me off. Not because of lack of respect for our parents (who could be unpleasant to say the least) but because it was all dumped on me to sort out and make nice with the mourners. But if I write a massive cheque to charity, sister B will be very upset (her only chance to buy a home) and probably sister A too.
I feel I'd rather not have any of the money than the accompanying drama. DH says to do what I think is best. What to do?