I met a girl yesterday who had a shirt from XYZ on, so I asked her about it and we're talking and she mentions she's not a member anymore. So I ask why she dropped. She was in another sorority at PrivateU that wasn't at the StateU she transfered to. So not knowing the rules she went through recruitment at StateU, got initiated and was active for over a semester before someone from her old school found out and told XYZ at StateU.
She has since lost her membership in both orgs (rightfully so) .