wait a minute...did u record that with the consent of ur adviser or without..if u recorded without his consent and he doesn't know that he was being recorded, then even telling him that you have his recorded conversations means u r in even bigger deep shit...as far as the suing goes, on what basis u r going to charge him...he doesn't have a written agreement with you that he is supposed to be 100% correct in his suggestions/advices... there is no such agreement between you and your adviser....he could simply say "sorry" that he had thought otherwise...next, no lawyer would be willing to handle such case...bro u will easily loose thousands if not hundreds of dollars.