By her own choice, she works inside the home, Mason said, and is living as "a housekeeper, clerk, secretary and stuff like that."

"I think Casey has a lot of world left to have to deal with. She hasn't been freed from her incarceration yet 'cause she can't go out. She can't go to a beauty parlor, she can't go shopping to a department store, she can't go to a restaurant, she can't even go to McDonald's. She can't do anything," he said.

Mason and his wife, Shirley, have continued a relationship with Anthony. Now three years after being acquitted, Mason said Anthony still distrusts the outside world.

"Casey is aloof," Mason said. "She is kind of, I think, afraid of people ... she's not real close to. We've had a couple of occasions to have social gatherings that can include her -- close friends, the (legal) team. She still likes to back away from the middle."

Anthony "does not have any blood family anymore," Mason said. The family she has is the residual of the defense team, Dorothy Clay Sims, Lisabeth Fryer and Mason's wife.

Mason said although there may have been a few conversations between Anthony and her mother in recent years, there is no relationship.

And as for a relationship with her father? "None," Mason said emphatically.

Shirley Mason has also gotten to know Anthony over the past three years.

"I'm a cross between a friend, a mother, but not a mother -- only someone who is older who has had experience in the world she has not had," she said.

Mason gives Anthony advice, but also listens to her when they talk.

"My hope for her is it gets better for her and the world or the people who have been so hateful can let that go and they can move on," she said.

Anthony "tries to make her life work," Shirley Mason said. She takes care of herself and stays physically fit by working out in the house.

"I do think she wants to speak out," Mason said. Anthony declined CNN's request for an interview.

"I have never asked her that, but I know she has very strong feelings for what has happened to her. I also know she's very saddened by her loss and she will never forget her daughter Caylee, ever."