Help For The Sharp Kids

My brother brian passed away and we need help for his three kid, any kind of help, Financial, anything really that will help, they lost their Dad in the saddest way, and me his sister/their aunt do not want them in the system!! They need to be with family!!!, our one sister might get them, but we need a bigger place for them, we need to find a place so they can stay together, these kids do not need to go through all of this so please help in any way possible