(CNN) A California woman paid over $9,000 to have a person affiliated with Rick Singer's college counseling business take online classes for her son so he could graduate Georgetown University, according to the Department of Justice.

Karen Littlefair, 57, of Newport Beach, will plead guilty to one count of conspiracy to commit wire fraud as part of a plea deal announced Monday, according to court documents. Prosecutors agreed to recommend a sentence of four months in prison, one year of supervised release, a fine of $9,500 and an order to pay restitution.

"My client has taken the earliest opportunity to take responsibility for her conduct," Ken Julian, Littlefair's lawyer, told CNN.

Littlefair is the 53rd person to be charged in the sprawling college admissions scam first announced in March. Singer was the mastermind of a brazen scheme to cheat on standardized tests and bribe college coaches in order to help wealthy parents game the admissions system. He has pleaded guilty to several charges and has been cooperating with prosecutors.

Littlefair paid Singer's college counseling business, known as "The Key," to have an employee complete online classes in her son's name, the criminal information states. She ultimately paid Singer's company about $9,000 in exchange for an employee taking four classes, and Littlefair's son graduated from Georgetown in May 2018, prosecutors said.

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