Being part of a guild leadership means to be prepared to ‘’protect and serve’’, ie to have resources for it and be willing to spend them in critical situations.
So, I think that’s necessary, not only to know how to play PG and how to guide the guild (experience in game/turns, money, various guides etc.), but to have specified amount of important defensive and offensive cards in guildmaster candidate(s) chest(s), before creating a new guild.
I agree with your proposal for some kind of licence, taxes, fees etc, but I think that in game mechanism could be implemented chest audit too.