They have Marcian (who is their contact to the empire's inquisition/information agency), they know LAncorion (owner of the local whorehouse), their 'rogue' (more a stray than a proper thief) and priest of Praios (god of honesty, sun, hierarchy & godking) did kinda get Glombo Brohm, most rich person of the town, onto their side.
They didn't bother to secure the second most rich family (Elfenberg) yet, but they are still at composing the letter to the rebels... they have 24 to 48 hours before the main bulk of the orcs leave..