The Real Housewives of New Jersey’s most controversial resident Danielle Staub has been embroiled in a federal defamation lawsuit filed by her ex-husband Kevin Maher for months, and it looks like it’s definitely going to trial. 

RadarOnline.com has learned exclusively that all parties were in settlement negotiations Wednesday but were unable to come to a mutual agreement and the negotiations abruptly fell apart.

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"The mediator Gary Donovan tried all day for a settlement and the other side jerked us around,” Maher told RadarOnline.com exclusively.

“We tried to settle this in good faith and negotiations failed. We are going to trial!”

Staub’s lawyers had filed a motion Tuesday requesting to exclude certain evidence from trial regarding Staub’s criminal history, Maher’s polygraph examinations, any references to Staub’s extra-marital sexual history, the testimony of Daniel Aguilar, and Caroline Manzo’s deposition testimony.

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Staub’s attorney Peter Cook outlined 29 points in his motion requesting to prohibit certain evidence, including the following: any depictions of Staub as either a stripper, prostitute or cocaine addict by Maher; any use of video footage from The Real Housewives of New Jersey, any use of Staub’s book The Naked Truth; any and all references to her criminal history, sexual history; and any references to her past or present illegal drug use and sex tapes featuring Staub.

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And when it comes to Danielle’s former reality co-stars, Cook requested the exclusion of all references to Danielle’s relationship with Dina Manzo, Teresa Giudice, Jacqueline Laurita, and Danielle’s interactions at The Brownstone owned by Caroline Manzo. Also, any references made by Caroline regarding Danielle’s reputation, alleged outstanding debts, and alleged deceitful acts.

Staub is scheduled to be deposed in the case on October 5 and Maher says it may have been a motivating factor to discuss a settlement.

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"I believe that October 5 would be the worst day in Danielle Staub's life, worse than her arrest,” Maher told RadarOnline.com regarding the possible reason Danielle’s lawyers and Simon and Schuster (that published her book The Naked Truth) were attempting to settle.

Although Maher is disappointed in today’s outcome, has plans to take further legal action against the Real Housewife and those affiliated with her book.

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“The mediator was talking to everyone involved so this didn't have to go to court and so I could put this behind me and she could put this behind her."

“What her lawyers did today is going to get Danielle sued twice! Danielle Staub with writer Steven Prigge and Simon and Schuster will be named as defendants in an upcoming lawsuit to be filed next week.”

Calls to attorneys for Danielle Staub were not returned.

The women of The Real Housewives of New Jersey have joined forces with playwright Anthony Wilkinson for an off-Broadway production of My Big Gay Italian Wedding.

Teresa Giudice, Caroline Manzo, Jacqueline Laurita and daughters Lauren and Ashley are helping to kick off the show – which is being coproduced by former cast member Dina Manzo.

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In a candid interview with Out.com the girls talk about their views on gay marriage in America.

“I think the state of gay marriage in the U.S. right now needs to have a little bit of a wake up call. We’re all human beings and we have a right to live and love how we choose,” Caroline said.

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“I do have a gay brother… So I watched him grow up and I watched his heart hurt and I knew what he went through. To me, to do this, to support the cause is wonderful.”

Jacqueline noted that she has gay family members and said, “I think if two people want to be together and they love each other, they should be together and they should be able to get married.”

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Dina said she decided to get involved after seeing Wilkinson’s one-night-only in Staten Island, and urged him to do more with his play.

“You know, with gay marriage being in the forefront right now and the message is there in a great way because it’s not shoving it down anyone’s throat,” she said to Wilkinson.

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“Anyone can come see it, whether they support gay marriage or not, and at the end of this play they’ll walk out of here maybe with their eyes open and say, ‘You know what, everyone really does deserve to get married and everyone deserves to have this special bond between two people in love.’”

Ashley said, “My best, best, best friend is gay. I don’t see the big deal in it at all… You can’t choose who you love and it’s stupid for someone to try to stop them.”

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Lauren also voiced her support saying, “My mom [Caroline] always told me you can’t help how your heart feels. So if your heart feels something for someone who happens to be the same sex, there’s nothing wrong with that.”

The five women will debut their acting skills at Manhattan’s Etcetera Etcetera theater from September 1 through September 4 with sales benefiting Marriage Equality New York.