Lori Loughlin's daughters Olivia Jade party at the $ 3 million Hollywood house while their parents risk prison

Her parents may be up to 40 years in prison and millions of dollars in tax penalties, but that did not stop Olivia Jade from having a party with friends on Thursday night.

The daughter of Full House actress Lori Loughlin and designer Mossimo Giannulli had fun laughing and dancing with a group of YouTube stars who call themselves The Vlog Squad.

DailyMail.com has found several videos of Olivia Jade, 19, and another girl who looked like her older sister Isabella Rose, 20, on social media.

In a video, the couple is let go to Rock Star, the title of Miley Cyrus, which was released by the singer in the Hannah Montana era.

Olivia was originally the most animated member of the fake team, dancing alone to the sound of melody, while Bella hesitated to play with her friends.

TMZ was the first to see Olivia at the party, which was hosted by David Dobrik, a 22-year-old YouTube star, in the Studio City mansion he calls home.

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The girls 'night comes two days after several sources told DailyMail.com that one of the actress' daughters had received a letter of intent from federal prosecutors in Mbadachusetts earlier this month regarding Operation Varsity Blues investigation.

This letter informed the student in difficulty at the University of Southern California that she was the subject of an investigation that could lead to criminal charges.

No students have been charged or arrested at this stage of the investigation, but court documents clearly indicate that some of the youth were aware of the illegal actions in their favor.

"It's a not-so-veiled threat," said one source who saw the letter.

& # 39;[The US Attorney’s Office for the District of Mbadachusetts] made it clear that they have evidence that strongly suggests that she was aware of the illegal conspiracy.

The sources with which DailyMail.com spoke did not know that one of the girls had received a letter whose tone had been labeled "sinister".

This letter, however, did not allow Loughlin and her husband, Mossimo Giannulli, to sit down at the bargaining table, the couple having pleaded not guilty Monday to charges of mail fraud and money laundering. 39; money.

A lawyer from Loughlin did not respond to a request for comment and it is unclear whether his daughter asked for separate counseling.

A spokesman for the US prosecutor's office declined to comment.

Shortly after their guilty plea, their eldest daughter, Isabella, deactivated her Instagram account.

One source said target letters had been sent out a month ago, while prosecutors were straining to obtain evidence in the case and to prosecute other charges and defendants.

These last target letters seem less concerned about the collection of information, said the source, who described the notes as "warning shots" for students.

"It is clear that some students will be charged," said the first source.

This person then added that she knew five people who had received a letter similar to that of Loughlin's daughter, noting that in all five cases, the parent or parents had refused to negotiate a plea and then filed a plea of ​​no -guilt.

Loughlin and her husband are facing jail time because they chose to use the path of athletics to allow their daughters to enter the University of California from South.

To do this, the girls Isabella and Olivia, who had never rowed in their lives, claim to be part of the crew.

In order to sell this, they posed for pictures on ergometers, suggesting that they were both conscious and willing to participate in their parents' plan.

In addition, Olivia knowingly asked the Singer team to complete her university applications in accordance with the complaint.

"On or around December 12, 2017, Loughlin sent an email [Singer], copying Giannulli and their youngest daughter [Olivia], to seek advice on how to complete the official USC application, following the tentative acceptance of her daughter as a recruited athlete, "states the complaint.

& # 39; Loughlin wrote: "[Our younger daughter] did not submit all his colleges [sic] applications and is confused about how to do it. I want to make sure that she receives them because I do not want to draw attention to [her] with our boyfriend at [her high school]. Can you tell us how to proceed? "

In response, Singer wrote an e-mail "asking an employee to submit applications on behalf of Giannullis' younger daughter. [Olivia].

Loughlin and Giannulli "have agreed to pay bribes in the total amount of $ 500,000 in exchange for appointing their two daughters as recruits to the USC team. , while they did not participate in the crew – thus facilitating their admission to USC ", according to the documents.

The couple sent an email to Singer in 2016 about their daughters' college prospects, stating that they wanted to do the work needed to ensure that girls enter the USC, as opposed to at the ASU.

The emails obtained by the investigators revealed that it was soon decided that bribes would be paid to recruit the girls as helmsmen.

Shortly after, photos of the eldest daughter Isabella were taken on an ergometer.

Dr. Donna Heinel, Senior Assistant Director of Sports at USC, introduced Isabella as a potential sports recruit a month later and she was approved for conditional admission.

Giannulli was then asked to send a check for $ 50,000 to Heinle. Shortly after, he asked if he could tell the story to the sports director of the USC when the two men were at Augusta, probably at the famous golf club.

Singer said it was not a good idea, because when he discussed the possibility that Isabella would be admitted with him a year, he thought the family "would be beneficial to a million people in more".

Isabella received her letter of admission the following March, followed by another note requesting a $ 200,000 donation to Key Worldwide Foundation.

After the amount was transferred to the organization, a note was returned stating that no goods or services had been exchanged for cash, which, according to the documents, is false.

This same process was then repeated with the girl, Olivia, is it claimed.

Problems arose, however, when Olivia's guidance counselor became curious about how she had managed to be admitted because of her involvement in the crew since she was not rowing. not.

At the same time, Loughlin complained that his daughter had difficulty completing her other applications for admission to the university, which prompted Singer to ask an employee to take on this task.

This was done to not draw attention to the fact that it was already confirmed that she had been admitted conditionally to the school.

Then, at one point, there was a very violent and public altercation between Giannulli and the counselor, which caused an e-mail from Dr. Heinel asking that this not happen again in the future in order to Avoid any detection.

All of this began to collapse in October 2018 when the IRS audited Key Worldwide and began reviewing donations made by parents whose children had subsequently been admitted to the USC.

Singer told the two men that they had donated money to help "underserved children".