One of my players wants to create a Syndicate made up primarily of spies (4th level thieves). Is there any reason why he shouldn't be able to? I can't really think of any, except for a nagging suspicion that there should naturally be more lower level members because that's just the way things work. Like, otherwise it would be a kitchen filled with chefs and no dishwashers and busboys, or a military filled with officers and no grunts.
Along this line, are there good guidelines for:
1. Determining the value of hijinks a Market Class can support (like, there are only so many rumors one can learn).
2. Determining what happens when a Syndicate is established in a community that already supports other Syndicates. I've intimated that this will likely result in the established Syndicates strongly suggesting that the new Syndicate needs to pay them some dues, followed by potential gang warfare. I've assumed that the other Syndicates will become aware of this new Syndicate after a certain time (based on the income the new Syndicate earns from their hijinks).