Attorneys for convicted sex offender Jeffrey Epstein claim in a new court filing that the billionaire financier will be irreparably harmed" if emails and letters his lawyers sent to federal prosecutors ... are made public. They're asking a judge to order that the correspondence remain sealed. Epstein's legal brief ... represents his first formal statements since explosive allegations emerged last month that he had forced a then-17-year-old girl to have sex with Britain's Prince Andrew and other powerful men. Virginia Roberts, 31, ... claimed in court documents that Epstein ... trafficked her for sex with a host of his prominent associates, including three times with Prince Andrew ... and at least six times with longtime Harvard legal professor,Alan Dershowitz. Roberts ... seeks to join a case filed by two other women. Those women contend that the deal with Epstein violated their rights as crime victims to be consulted and treated with fairness in the administration of justice. The case, which was first filed in July 2008 as an emergency motion to stop the deal from taking place without their input. Unbeknownst at the time to the victims, the agreement had already been signed nine months earlier. Last fall, Judge Marra unsealed a small portion of the correspondence from Epstein's attorneys. One excerpt -- a one-line email from an Epstein attorney sent just as the terms of the non-prosecution deal were being finalized -- reads simply: "Please do whatever you can to keep this from becoming public." If [Marra] were to side with the plaintiffs, the immediate effect could be the unsealing of a 23-page letter written in part by Dershowitz and sent to federal prosecutors two months before the agreement was signed.