A New York state judge sided on Friday with Boies Schiller Flexner, declining to force the firm to turn over discovery documents to a former client, Russian-Canadian billionaire Alex Shnaider, who owes the firm a little shy of $1 million in legal fees.

Shnaider, now represented by Kasowitz Benson Torres, had submitted a petition in Manhattan state court on Wednesday looking for a temporary restraining order, and later an injunction. Shnaider’s petition effectively asked the court to order the return of his client file in an underlying lawsuit in New York federal court, which pits the billionaire against his former business partner in a venture to sell private jets.