Union spokesman Dan Wasserman said Hunter had no comment on the letter or the dismissals.
Hunter has headed the union since 1996 and makes $3 million a year. The eight-month review gave players plenty of reason to consider his future with the organization, though Hunter has good relationships with many of them and has said he looks forward to continuing.
He is not nearly as popular with agents, who questioned his strategy during the lockout and sought a larger role. The New York Times on Tuesday printed text of a letter to his clients from Arn Tellem, one of the most powerful agents, urging Hunter's removal next month, and others will likely follow.
The review was sought in part by Derek Fisher, the union president who clashed with Hunter during and after the NBA lockout that lasted from July through November 2011. It began last April and included reviews of documents, financial records and NBPA emails, and interviews of witnesses.
Hunter wrote that he disagreed with certain aspects of the report but reiterated that he was pleased it found no evidence of criminal activity.