On Feb. 4 the 77th session of the Nevada Legislature begins and the state capital will once again host a swarm of lawmakers, citizens, reporters and, maybe most of all, lobbyists.About 250 lobbyists have already registered for the session, and about half of them were in the legislative building in Carson City recently for a now mandatory two-hour training class which covers everything from ethics to fire exits to filing required monthly expense reports on time.But all of them were already busy meeting with clients, legislators and one another to prepare for the upcoming session and continue work they’ve been …