After Thomas Vincent Girardi was indicted for allegedly embezzling more than $15 million from legal clients, the ex "Real Housewives of Beverly Hills" husband pleaded not guilty on Monday.

Girardi’s court appearance comes on the heels of Los Angeles and Chicago prosecutors accusing him last week of stealing more than $18 million.

The 83-year-old ex-lawyer allegedly stole from clients that included an Arizona widow whose husband was killed in a boat accident, a Los Angeles couple injured in a car wreck that paralyzed their son and a man who was severely burned in the 2010 San Bruno gas pipeline explosion.

TOM GIRARDI, EX ‘HOUSEWIVES’ HUSBAND AND DISGRACED LAWYER, INDICTED OVER ALLEGED $15 MILLION EMBEZZLING SCAM

Also charged in the indictment is Christopher Kamon, 49, the chief financial officer of Girardi's law firm. Although he did not appear in court on Monday, he is jailed on a separate wire fraud case in which he’s accused of embezzling law firm funds to renovate two LA-area homes, pay for shopping sprees and hire an escort.

Tom Vincent Girardi

Thomas Vincent Girardi was indicted for allegedly embezzling more than $15 million from legal clients. (AP Images)

During Girardi’s rise of being one of the nation’s most prominent plaintiff’s attorneys, he took on powerful corporations, movie studios and Pacific Gas and Electric in a case that led to a $333 million settlement, which was portrayed in the 2000 Julia Roberts film "Erin Brockovich."

‘REAL HOUSEWIVES’ STAR ERIKA JAYNE DISMISSED FROM EMBEZZLEMENT, FRAUD LAWSUIT: COURT DOCUMENTS

Despite being a successful lawyer at the time, his law empire started to spiral amid ongoing legal issues. 

Erika Jayne, Tom Girardi

Erika Jayne filed for divorce from Tom Girardi in November 2020. (Jen Lowery/MEGA/GC Images/Irfan Khan/Los Angeles Times)

Last year, Girard lost his law license due to client thefts. Creditors of his bankrupt Girardi Keese firm are seeking more than $500 million, and he's in divorce proceedings with Erika Jayne, who starred on "Real Housewives of Beverly Hills."

Tom Girardi and Erika Jayne in Real Housewives

"Real Housewives of Beverly Hills" star Erika Jayne's ex-husband Tom Girardi pleaded not guilty in court for allegedly embezzling $15 million from clients. (YouTube/Bravo)

Girardi also faces federal wire fraud charges in Chicago, where he is accused of stealing about $3 million from family members of victims in a 2018 Lion Air crash that killed 189 people.

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He was disbarred from the State Bar of California in July 2022 and currently resides in an assisted living facility memory care unit, having been diagnosed with Alzheimer's in March of 2021. He is also under a court conservatorship supervised by his brother, Robert.

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While Kamon is due in a Chicago court Tuesday, Girardi’s arraignment there is scheduled for March 3.

Girardi's son-in-law David Lira, 62, also faces charges in the Chicago case and is scheduled for arraignment Friday. His lawyer said he will plead not guilty.

Fox News Digital's Tracy Wright and the Associated Press contributed to this report.