Former Survivor producer, Bruce Beresford Redman's ex-sisters-in-law, are asking a judge to grant them custody of his two children from his marriage to Monica Burgos, whom he is charged with murdering, RadarOnline.com is exclusively reporting.

Monica was murdered in Cancun, Mexico over a year and a half ago, and her husband has been charged with the murder. Bruce is currently in jail in Los Angeles, as he appeals a judge's recent decision to have him formally extradited back to Mexico to face charges.

Monica's sisters, Jeane and Carla Burgos are asking Judge Mitchell Beckloff to grant them custody of Camila and Alec, who are being cared for by Bruce's parents, David and Juanita Beresford Redman.

Carla Burgos, the sister of Monica Beresford Redmond, who was allegedly murdered by her Survivor producer husband, Bruce Beresford Redman, has requested a Los Angeles judge to allow her to purchase Monica's Brazilian restaurant for $1.00 – claiming the business is in “dire financial shape.”

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Carla, and her other sister, Jeane Burgos, have been handling the operation and management of Zabumba, a Brazilian eatery in Los Angeles, since Monica was murdered in Cancun in April, 2010.

Former Survivor producer Bruce Beresford-Redman's mistress will be subpoenaed regarding his late wife Monica Beresford-Redman's murder in Cancun last spring, RadarOnline.com has exclusively learned.

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Inside sources tell RadarOnline.com that Monica's sisters - Jeane and Carla Burgos - are requesting that mistress Joy Pierce be deposed regarding the Mexico slaying.

The sisters of murder victim Monica Beresford-Redman were ordered monitored visitation with their slain sister’s children, RadarOnline.com has learned.

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From a Los Angeles on Friday morning, Judge Mitchell Beckloff made order for Jeane and Carla Burgos but wanted to make it clear that he didn’t do it because he believed claims made by Bruce’s camp that they were saying anything negative to the children during their visits.

But with an upcoming custody trial set for November, the judge thought it would be best to have another set of eyes and ears with the sisters and the children during their visits.

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The sisters of slain murder victim Monica Beresford-Redman claim the behavior of her surviving children has dramatically changed since their mother's death, RadarOnline.com is exclusively reporting.

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Carla Burgos is fighting her sister's husband Bruce - the prime suspect in the case - for custody of the couple's two children, and has recounted how five-year-old Camila recently had a disturbing dream.

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A court-ordered forensic expert will examine the authenticity of Monica Beresford-Redman’s last will and testament, RadarOnline.com is reporting.

Bruce Beresford-Redman, the former Survivor Producer who is still wanted in Mexico over the killing his wife, asked a Los Angeles judge on Tuesday to appoint the specialist, amid an ongoing legal fight with his wife’s surviving sisters.

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Jeane and Carla Burgos are challenging the validity of the 2008 document, which names Bruce as the executor and gives Bruce's parents an interest in a house Monica owned.

The remainder of her property would go to Bruce, according to the will.

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"I have no reason why I would not allow Ms. Hahn (Bruce’s lawyer) to have her expert examine the will,” said Judge Mitchell Beckloff, who set a date of August 6 for the forensic study to be completed.

At the centre of the legal joust is the claim that there are no witnesses to validate Monica signed the document.

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The couple’s former nanny, Maria Beatriz Oaxaca, who Bruce fired last month because she refused to support his innocence, is a potential key witness.

But the nanny reportedly says she knows nothing about Monica signing a 2008 will.

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"Ms. Oaxaca said that is her signature on the document but that's not the document that she signed,” the Burgos’ attorney, Richard Petty, told court.

Petty has submitted a different will -- from 2004 -- in opposition to Bruce's claim.

In another twist, the court was told Bruce’s legal team is trying to find the couple’s former cook, who is also said to have witnessed Monica sign the document.

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Petty also asked the court to appoint a special administrator to oversee the affairs of the estate, specifically, in regards to insurance policies.

"There was discussion that Beresford-Redmans are having trouble paying the mortgage on the Rancho Palos Verdes house and I think there's a need for people to notify life insurance companies of the litigation and make sure mortgage payments are being made,” Petty said.

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But the judge said he would only consider such a move if evidence was presented to the court, which it hasn’t, to date.

While an arrest warrant remains active for the television producer, who is accused of beating and strangling Monica to death, Bruce is free to go about his normal business in California.

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He plans to fight any extradition plans, while Monica's sisters areconsidering filing a wrongful-death suit.

Social workers have been called to the home of Survivor producer Bruce Beresford-Redman twice, RadarOnline.com has learned.

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The shocking revelation surfaced in open court Thursday morning with presiding Judge Mitchell Beckloff.