Finally got my hands on the Mai Otome Zwei OVAs. Here they are! Enjoy!
OVA 1-> http://www.megaupload.com/?d=V816COC3
OVA 2-> http://www.megaupload.com/?d=GU8X4BXS
OVA 3-> http://www.megaupload.com/?d=12J6MCRL
OVA 4-> http://www.megaupload.com/?d=24DCBBH8