The allegations read: Christopher sherman was a subject of the customers' complaint against his member firm that asserted the following causes of action: violation of finra rule 2010 (standards of commercial honor and principles of trade), finra rule 2111 (suitability); finra rule 2020 (using manipulative, deceptive, or other fraudulent methods to effect a transaction in or induce the purchase or sale of a security); finra rule 3110 (supervision); misrepresentation or failing to disclose material facts concerning an investment; guaranteeing customers that they will not lose money on a particular securities transaction; negligence; and breach of contract.