The vigesimi of Gugrontid is on the top level, Ojaveda's is quarantined in one of the inaccessible dsar's, if I am not mistaken and the Winch's vigesimi is behind his desk on the second floor of the main winch building. Like I said, though, you could form citizens committees to deal with the officials but those people (NPCs) are unlikely to care about you unless you create a significant amount of noise.