Investors potentially experienced sales practice violations because of securities broker Jeffrey Steinberg (also known as Jeff Steinberg) [CRD: 2610793, Port Saint Lucie, Florida], according to disclosures through FINRA’s BrokerCheck. Steinberg has been registered with Avantax Investment Services Inc. since October 25, 2019; Avantax Planning Partners Inc. since June 29, 2022; and Avantax Advisory Services since […]