Maverick Messmer Management

QUINCY — Maverick Messmer Management and Belly Laffs Comedy are the hosts of “The Gem City Comedy Showcase” and after party at 7:30 p.m. Saturday, Aug. 5, at One: Special Event Venue, 600 Hampshire. In a press release, Richard Bailey, stand-up comedian and Quincy native, said, “This is one of the best lineups I’ve been…