Transcript for Former Live-In Nanny Who Wouldn't Leave Speaks
"20/20" continues. Once again, nick watt. Reporter: Marcella Bracamonte, a young mom of three from upland, California, says she fired her live-in nanny over a month ago, but the nanny refused to move out. Branded the "Nanny from hell" in the media. The Bracamontes have told their tale, but -- This is your chance to tell us what you would like us to know. Reporter: Who is the nanny non grata? Tonight she is stepping out of the shadows, talking exclusively to us. This is her chance. It's time to hear the nanny's side of the story. The issue was, they just thought they could have me 24/7. She said, "You know, you have this beautiful room, and you have access to a pool and all this stuff. We're really giving you a lot of value. You need to give us more." Reporter: They just wanted more? It was just an issue of more. Reporter: How many hours were you working? Between 50 and 60. Reporter: Diane claims after months of unscheduled long hours, she became sick, in bed with the flu. Marcella threatened to fire her, so she says she quit. Why do you think they were doing this to you? Because they like to get something for nothing. Reporter: Diane claims she stuck around just because she needs time to find someplace else to go. And the Bracamontes, she says, tried to get her out. She would like to stay there three more nights. I cut her wi-fi, the telephone, and locked the fridge. I tried to heat her out. It doesn't work. Reporter: And that, says Diane, was not all. They put dog food outside the room. They called me a dog. They swore at me. They treated me in just an outrageous manner. Reporter: She claims you put the dog food outside her door, you've called her a dog, you've harassed her. No. I've heard the dog food, and I think all of that's absurd. Reporter: But Diane claims these are the pictures that prove it. At that point, many people would just have moved out. But you didn't. I was going on the internet looking for some other arrangement. Reporter: But to stay in somebody's home when it's clear they don't want you there, they have young children, that's quite a brazen act to remain in that house. I don't look at it that way. Reporter: And neither does the law. She still has a key to their house, can legally come and go as she pleases, leaving the Bracamontes on edge. When I'd go to bed, I'd lock the door and I'd sleep in the front with my brother, just in case, and I'd put my chair in front of the door handle so she can't get in if it unlocks or something. Reporter: How does that make you feel to create such fear in children? They had nothing to be frightened of. Marcella put that idea in their head. I was in the room next to them, and I heard giggling and laughing going on past 10:00 at night. If someone's scared, do they laugh? Do they have squeals of joy? I don't think so. Reporter: Diane stretton is 64 years old, college educated, a onetime medical technician. I was always a top scholar. I always got a lot of awards. I always did real well. I was well-off. Reporter: But she'd fallen on hard times, unwell and eight years homeless when she answered the Bracamontes' want ad offering room and board in exchange for a few hours' help around the house. It seemed like a reasonable deal to enter into. Reporter: Not a deal that you then felt you could take advantage of at a later date? Absolutely not. It seemed like it'd be a really good trade for both of us, you know? For 20 hours a week work, I'd get my legs up and take care of my heart condition, and get to sleep in a bed. Reporter: Have you ever had an arrangement like this before, where you get a room for work, but you don't get paid for the work? No. I was a total newbie. I was giving them way more hours than they were entitled to for the value of the room. They were exploiting me. Would you work for free? And just get a little, small, standard tract house bedroom? I don't think so. Reporter: And under California law, for even 20 hours a week, minimum wage law would require the Bracamontes to pay a wage as well as room and board. She claims the original deal was 20 hours a week. No. Reporter: So, what was it? I would say she probably -- a week, maybe ten hours, if that. Reporter: This is the first time I've heard you say this. My understanding was that it was more than ten hours. It was to help out as my wife needed. Reporter: Nothing was really written down. And that's what's biting us in the butt. I had tried from the get-go to get the contract in writing. And she didn't want to do it. Reporter: You were, perhaps on a number of levels, naive. Very naive. We messed up. Reporter: Can you see how this looks? This is a 64-year-old woman who you are asking to work. It's open to question how much you were asking her to work. You're back on that subject again. Reporter: Sorry? You're back on that subject again. I thought we were going somewhere else with this. Let him finish. Reporter: How some people could perceive this is you were taking advantage of a 64-year-old woman who didn't have a house, and you were asking her to work for you, and you were not going to pay her. You know what? I think that her character speaks for herself. Reporter: Okay, well, while we're on this route, why did you hire somebody from craigslist who had no previous childcare experience? She said she was a stay-at-home mom for several years. And I thought that was sufficient. Reporter: They checked her references, but not her court record. If they had, they would have found that Diane is what they call a vexatious litigant, accused of filing nuisance claims. You know, I mean, I found 20 or more. I mean, you are a vexatious litigant, right? All of those -- well, I would strongly disagree with that. Reporter: But that's what you officially are. Officially I am, but I shouldn't be. Reporter: Why not? Because a lot of those cases, first of all, I won. Reporter: In this case, Diane thinks she's the victim. Not Marcella. Little joey, what do you think is going to happen? That my mom is going to win. She never loses. I won't be able to rent any place or get any jobs. Reporter: Are you going to sue her? I don't plan to at this point. Reporter: What do you want? To get my things out. Reporter: Yesterday, they were told they can change the locks. But they haven't. The lesson you've learned is what? I'm going to get a place and live by myself. Reporter: Are you going to hire another nanny? Never. So, the question, whose side are you on? Tweet us. And when we come back, trying to get rid of neighbors,
This transcript has been automatically generated and may not be 100% accurate.