NEW YORK (CNN/Money) - The law firm of prominent attorney David Boies has stepped down as special counsel for Adelphia Communications Corp. after the cable company discovered business ties between his family members and a document processing company working for Adelphia, a news report said Tuesday.

The split from Boies, Schiller & Flexner LLP was sought by fallen cable company Adelphia two weeks ago after it learned of the ties between Boies' four children and a data management company, Amici LLC, the Wall Street Journal reported.

The law firm was responsible for overseeing the cleanup of Adelphia following its declaration of bankruptcy three years ago.

Amici, which was founded in 2002 and has offices in both Albany, N.Y., and New York City, was receiving somewhere between $5 million and $10 million to handle Adelphia's documents, Philip Korologos, a lawyer at the firm, Boies Schiller Flexner LLP, told the paper.

Korologos, the lead Boies Schiller handling the case, told the Journal that he had recommended Amici to Adelphia in 2002, but that he did not have any knowledge of any affiliation between the company and Boies' children at the time.

The affiliation first surfaced in July when a lawyer for Bank of Montreal, one of Adelphia's creditors, wrongly charged Boies in court with having a business connection to Amici.

Korologos told the Journal that no business connection exists between Boies and Amici.

David Boies, who founded the firm in 1997, has become a nationally recognized lawyer working on such high-profile cases as the anti-trust suit against Microsoft when he served as a special counsel to the Justice Department. Boies also served as lead counsel in relation to litigation for former Vice-President Al Gore in the 2000 Florida vote count.

Korologos told the paper that Boies' sons David III, Jonathan and Christopher as well as daughter Caryl each own a stake in a company called Legal & Scientific Systems LLC. Legal & Scientific owns half of a company called Datamine, which possesses 51 percent ownership of Amici.

Calls to Korologos were not immediately returned.

The Greenwood Village, Colo.-based Adelphia declared bankruptcy in 2002 after the controlling Rigas family became embroiled in a financial scandal.

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