Broker Ronald Birnbaum Involved In Investor Disputes The Financial Industry Regulatory Authority (“FINRA”) reports troubling allegations of misconduct by securities broker Ronald Birnbaum (CRD#: 2382580, Newton, Massachusetts). Evidently, Birnbaum works for Advisory Group Equity Services Ltd. as a stockbroker and Trust Advisory Group Ltd. as a financial advisor. Notably, he is involved in six investor […]