I was Phi Sig at Theta Theta, left school temporarily- and am thinking of going back. Theta Theta was disbanded I assume ( after I left, so I'm not 100 % sure what happened) but I was wondering if one wanted to, could you start back up a chapter that USED to be at a school?
First you should contact Headquarters and see what is required to re-open the chapter. Also, contact your campus Panhellenic/Greek Advisor and set up an appointment to discussing the situation. There may have been a sanction on the chapter or the chapter just died out after members graduated and did not continue to recruit.
After you get all the information from Headquarters and your Panhellenic/Greek Advisor then go and talk with your campus Panhellenic Council. I'm not sure if the council need to vote on your chapter re-opening or not.
Then if all goes well then you are really going to need to up the PR to get girls interested in Phi Sig again. Maybe e-mail alumnae to see if they would be interested in coming back to speak with girls about the chapter.
I hope this helps good luck on getting the chapter started again.