A 51-year-old professional bookkeeper from Maui admitted to defrauding professional surfer Clay Marzo and his mother, Jill Marzo Clark, of $373,682 from their business accounts over a period of seven years.

Felicidad Rivera pleaded guilty Thursday to 13 counts of wire fraud in connection with a scheme to defraud the mother and son from December 2008 to August 2015.

Clark’s daughter, Gina Marzo, told the Honolulu Star-Advertiser that Rivera took money that Marzo earned during his career as a professional surfer, as well as from Clark’s vacation rental business.

Rivera gained the confidence of the mother and son, and falsely represented to them that their business funds were required to pay legitimate business expenses, said U.S. Attorney Florence Nakakuni in a written statement. Instead, she fraudulently wrote 193 checks to herself totaling $334,450.

Additionally, Rivera used the business accounts to pay her personal monthly credit card debts, amounting to $75,488 over 87 monthly transactions.

She also falsified the accounting books for the businesses and presented altered financial records to the tax accountant who prepared the victims’ taxes.

Rivera faces a maximum of five years’ imprisonment and a $250,000 fine for each of the 13 counts when she is sentenced June 5.

Marzo said her brother, who has a form of autism, and their mother, who has dyslexia and attention deficit hyperactivity disorder, trusted Rivera with their businesses.

“She was a part of the family,” Gina Marzo said. “My mom went to her daughter’s baby shower. She came to my graduation. She was super sweet, very kind, bubbly with a high-pitched voice. It was never suspected. My mom’s so trusting.”

Marzo added: “It’s been very difficult for us as a family. It’s like a lack of trust. … My mom is one of the most genuine and kind people I know. This whole thing has been difficult on her.”