Singer Deutsch LLP New York Securities Attorney | U-5 Expungement Lawyers Bonus Disputes | Los Angeles Securities Employment Attorneys The New York & Los Angeles securities attorneys of Singer Deutsch LLP are experienced lawyers representing investors in disputes involving fraud. Their lawyers also handle matters concerning U-5 Expungement, bonus disputes, employment discrimination and sexual harassment affecting those in the securities and financial markets; traders, brokers, investment bankers, and research analysts.