West Virginia mobile sport betting is getting a boost as the Golden Nugget is now the third online casino for the state. The recently announced deal grants them access to the market via The Greenbrier online casino in the state. Golden Nugget will be able to launch its online casino and sports book app on The Greenbrier’s license. In return, it will pay the casino an unspecified share of its revenue, subject to certain minimums. At the moment, there are only two active online casinos in West Virginia, with DraftKings first to launch in July, followed by the BetMGM app…