The chief administrator of Scott Rothstein’s law firm testified Tuesday that the head of a South Florida hedge fund knew the former attorney was running a financial scam.

Debra Villegas, the former chief operating officer of Rothstein Rosenfeldt Adler, made the statement in the federal trial of Boca Raton attorney Christina Kitterman. Kitterman is accused of assisting Rothstein in his $1.2 billion Ponzi scam by pretending to be a Florida Bar official to thwart investors’ concerns about the legitimacy of a settlement scheme Rothstein ran from his firm.