[SmartBlondeGPhB]

Are there local alums from a different chapter? Even thought they aren't from your chapter, they would probably still be happy to help.

Do any of your members live in apartments with a community room? Maybe the complex would allow you to reserve that. As long as they have window coverings (or will let you cover the windows) there shouldn't be any conflict with ritual. If the room is reserved for a private event, no one else should be coming in anyway.