Seven seasons and a minimum of 20 episodes. OF THOSE TWENTY, no fewer than 10 should have nothing to do with any meta plot arcs. And at least one episode where someone turns into a child/hologram/salamander/etc.
You get one Q per series.
Wait, call me Bill Maher because I have a new rule: Your series gets to have one episode with Q or one episode in the Mirror Universe. You don't have to choose right away, but doing one locks you out of the other.