As of today Five of Cordors Guild and Noble houses are owned by not just people within the Rivorndir faction, but people with the last name Rivorndir.
This feels like it should be against the rules, there are plenty of other groups who actively want to be able to use the unique features that come with owning a noble manor, or want a place to station their guild that lose out on the chance to do so because one faction owns all of the property that makes it possible.
There should be some kind of limit on the number of Guild halls and Noble manors that can be in the possession of a single faction. We limit the number of shops and quarters an individual can own to encourage more people to have them, we should do the same thing for factions and faction bases.
For reference, all the quarters are listed and described below
Guild House/Religious building with multiple quarters inside
Noble manor in Cultural District
Noble Manor with multiple quarters inside in Cultural District
Noble Manor In Government District
Noble Manor in Cultural District