.. Getting Glottis on board

If you have solved all the three other puzzles you should have access to Maximino's office, at High Roller's Lounge (the big oval door is now open).

Ask about Glottis.

Yeah, so, because Glottis owns part of Manny's club he has credit.

As long as you are in business... Maybe it is time to close down the Calavera Cafe.

Maybe there's a quick way to close the business down. By someone else...

You know the officials of the town will look your businesses favourably as long as they are winning.

Police Chief Bogen. He is a regular roulette player at Manny's club. And he is playing, right now.

Make him lose in the roulette.