A newly unsealed special master’s report accuses the law firm Labaton Sucharow and its co-counsel of deliberately misleading the court about how it distributed the legal fees from a $300 million settlement with State Street Corp., prompting Labaton Sucharow to call the master’s analysis “wholly unmoored” from legal precedent and professional conduct rules.

The report recommends Labaton Sucharow return as much as $8.1 million of its share of a $75 million fee award to the class, and says Garrett Bradley, lead partner at the Thornton Law Firm in Boston, should pay up to $1 million in fines.