The Turpins had originally pleaded not guilty, but switching to guilty allows them to avoid trial.
Uffer said he hasn't seen the children since they left the center a year ago, but an attorney for the adult Turpin children, Jack Osborn, told CNN, "Our clients are relieved that there will not be a trial and they are happy the district attorney was able to achieve this result".
Neighbour Marcela Torres leaves a message for the children on the front door of the Turpin home.
"They have been living together, getting their education and moving their lives forward". He said they value their privacy.
Since their rescue, the children have been in the care of child and adult protective services. Police thought the girl who had sought help was 10; she was actually 17.
"They chain us up if we do things we're not supposed to", she said. She had planned her escape for more than two years. "If there is any part of them that needs validation that how they were treated was wrong and was abuse, this is it". Sentencing is scheduled for April 19.
"I was very taken by their optimism, by their hope for the future, for their future", Hestrin said.
"They have a zest for life and huge smiles and I'm optimistic for them".