 SAN FRANCISCO--BUSINESS WIRE--JMP Group LLC NYSE: JMP, an investment banking and alternative asset management firm, announced today that Alfredo Barreto, Jr. has joined JMP Securities as a managing director in its investment banking group. Based in the firms San Francisco office, Mr. Barreto will advise corporate clients in the cannabis industry. The cannabis sector has been an expanding focus for JMP over the past year, and Alfredos arrival cements our commitment to the space, said Mar 