An attorney who claims to represent Britney Spears has filed papers to move her conservatorship case from the Los Angeles County Superior Court to federal court but legal experts question whether his legal strategy is viable. In a document filed on Thursday in Los Angeles, attorney Jon Eardley writes that Spears has not "received the benefit of a single hearing before the court," and "is being confined by the conservator to the private prison of her own home," in violation of her civil rights. Legal experts were doubtful that Eardley's bid to remove the case to federal court would succeed.