WhileLori Loughlinand Mossimo Giannulli’s daughtersOlivia Jade, 20, andIsabella Rose, 21, haven’t been charged in connection with thecollege admissions scandal, one legal expert tells PEOPLE it’s still a possibility.

According to former federal prosecutorNeama Rahmani, “At a minimum the daughters will be witnesses in a trial against their parents, but they could also be charged as defendants.”

“The government has made it clear that they are going to keep increasing pressure on both Lori and Mossimo,” says Rahmani. “By not pleading, Lori and Mossimo are exposing their children to being charged.”

But a Loughlin source disagrees: “If Lori had any indication that the girls were at risk, she’d want to plead guilty — even though she believes that she did nothing wrong. She is not going to let them spend time in jail for something that they didn’t do. Lori is a fantastic mother who would take the fall for the girls even if it cost her everything.”

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Lori Loughlin and her husband Mossimo Giannulli are photographed leaving Boston Massachussetts courthouse where they are appearing in front of a judge facing charges of conspiracy to commit mail fraud and honest services mail fraud, with an alleged nation

Prior to the new charges, Loughlin and Giannulli both already faced charges of money laundering conspiracy, conspiracy to commit mail and wire fraud and honest services mail and wire fraud. They previously faced up to 40 years in prison and have pleadednot guilty to the charges.

“It just gets worse and worse for her,” the source explains. “And you have to remember: nothing new has happened. They could have charged her with all of this last spring. But they waited. She feels like she is a scapegoat.”

On March 12, the U.S. attorney’s office in Massachusetts indicted Loughlin and Giannulli in the shocking nationwide scam as part of an investigation dubbed Operation Varsity Blues.Nearly 50 other parents, coaches, exam proctors and admissions counselors are accused of actions such as paying for boosted SAT scores and lying about students’ athletic skills in order to gain them acceptance to elite colleges including Yale, Georgetown, USC and Stanford.

From left: Olivia Jade Giannulli, Lori Loughlin and Isabella Rose Giannulli.Gabriel Olsen/Getty

Olivia Jade x Sephora Collection Launch

Contrary to Rahmani’s stance that Loughlin’s daughters are at risk of being charged, legal expertJames J. Leonard Jr.says the probability is zero.

“I see absolutely no scenario where the Department of Justice would charge either of the daughters,” says Leonard. “That would be absolute overkill and is contrary to the interest of justice.”

source: people.com