That depends on if a will was made. If there is no will I believe everything goes to the state. My maternal grandmother had passed a few years ago and her daughter (my aunt) said that because only her daughter, my two brothers and myself were in the will, I could take nothing for my two sister-in-laws as they were not in the will. Honestly, if there is no will, perhaps you could talk to whoever was in charge of the father's 'estate'. In personal opinion blood doesn't entitle you to cash in when a person dies, especially if you weren't a part of their life when they were alive. If you didn't care when they were alive, made an effort to seek them out, when they were alive, why do you want something from them now that they're dead?