Jake is a sociopath/psychopath. He's such a narcissist that he doesn't care and can't relate to the feelings or emotions of other people, even his own family.
He's done. He's not going anywhere but prison for the rest of his life. His family are in the same situation. It's all over except for the paperwork and technicalities. Those will take a while because each of the other 3 family members have to make their own plea deal, have it reviewed and sign off on it.
I assume when the time comes, each of them will also appear in court for the same type of hearing that Jake recently had, where Judge Deering asks them to respond on record to all the same questions, for each of the counts against them.
Following that, each will have a formal sentencing process, in which the penalties for each count and specification will be calculated and the formal sentence will be handed down. Some of them may appeal for things like visitation privileges, etc. It's just a formal process.
Each will be sent to a prison to serve their sentences.