Disbarred Boca Raton attorney Christina Kitterman, the only player in Scott Rothstein's $1.2 billion Ponzi saga to take federal charges to trial, must serve a five-year prison sentence after a federal appeals court upheld her conviction.

Kitterman was found guilty of wire fraud last year for helping her former boss defraud investors. Her participation in the scheme included her impersonation of a Florida Bar official in a 12-minute phone call with New York hedge funds, which the judge concluded accounted for a $120,000 loss to investors.

Beverly Pohl and Barbara Viota-Sawisch, appellate attorneys with the Fort Lauderdale office of Broad and Cassel, argued it was impossible to determine the dollar damage to investors caused by her client's actions.