And what is legal? "Basically, gambling is illegal in this state. how to open a legal poker room in texas. Are you or someone you know facing a gambling charge in Texas? Contact Houston game room attorney Matthew Sharp for help». Poker Rooms in Texas. . The clubs were accused of encouraging illegal gambling, money laundering, and criminal activities. “Our guys are not benefiting from the game. After the raids, District Attorney Kim Ogg. The owners of one Houston poker room say they are operating within a narrow margin of the law, but others aren't so sure. And so there are very few exceptions,". ” Local law enforcement officials, including Houston Police Chief Art Acevedo and Harris County. You know, we're not Nevada. This legal research guide provides information about gambling laws in Texas. General Information · Bingo · Eight-Liners · Poker.