Please use the money, in the coming months, that you would offer them, to pay for a little luxury for yourself, perhaps a cruise or visit somewhere you and your late husband may have liked to go to. You can't buy good will and by offering to pay for hotels and family meals you are making it transactional. Watch how they behave themselves and it will be a good indicator what they are really like as people. Do, however, plan a good wake for your late husband as a good send off for anyone to attend who held him dear. This is not about you but about honouring his legacy and memory while you are still able. You will then be able to walk away with a clear conscience and, if, by any chance, any of his children want to keep in touch they will.