REAL Housewives of New Jersey alum Danielle Staub bashed Erika Jayne, calling her "fake."
These disses come as the star's ex Tom Girardi has been accused of stealing millions from widows.
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Danielle said in the Hulu documentary, The Housewife and the Hustler: "Erika Jayne, I have seen on the show, and I also worked with her on Watch What Happens Live one or two times.
"Didn't get the best vibe from her — I know a lot of fake people, and it turns out, she's just one of them."
The former Bravolebrity also said Erika's lavish spending habits: 'The ladies, they have a tendency to flaunt and still do, well beyond their means."
Danielle also quipped of the RHOBH star's pop star career: "I liked that even though she can't hold a tune, she sang. She entertained. She's entertaining."
The documentary reveals the inner workings of the multimillionaire, Tom's, legal career and his wife's over-the-top spending habits.
A number of RHOBH fans accused Erika, 49, of knowing what Tom, 82, was up to before he allegedly embezzled from victims that he pledged to protect as he represented them against corporate giants in court.
Back in November, Erika shocked the world when she filed for divorce from Tom after 21 years together.
It was later claimed that Tom had cheated on Erika multiple times and she was over it, while the lawyer never denied or confirmed the allegations.
Following the divorce filing, Tom began getting hit with lawsuit after lawsuit for fraud, embezzlement, and contract breach.
Erika was roped in as it was claimed that they upheld their luxurious lifestyle with the money he had allegedly stolen from his clients.
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However, Erika has denied ever knowing what Tom was up to and how he funded their lifestyle.
A source told Us Weekly: “Erika was completely unaware of the very serious allegations that were being made against Tom in court.
“Tom always handled all of the finances and that was how they handled things. Erika feels betrayed by Tom because she completely trusted him.”