09-07-2013, 10:35 AM
By unique members I imagine you mean characters not linked to one account. I believe that would be quite difficult because each character invited to a house is invited by their own unique id code.
SilentKnight: 52 Royal Guard
DeadShot: 52 Sniper Hybrid
Athena: 51 Pikeman
DeadShot: 52 Sniper Hybrid
Athena: 51 Pikeman