I have a lot of experience with this. I was a senior chapter officer for 3 years. 2 during our colony days and 1 year after we received our charter from HQ.
We had folks like this around. I took the compassionate route. Talked to them, smoothed things over with the people that they had lied to, etc... These people will eventually burn out. They're not worth your time.
My advice is to drop them immediately. Don't play around.. It's not worth your time. It will be more detrimental to your group's reputation in the long run having them around. Screw 'em. They obviously don't care about the organization the way they are supposed to. No one needs this stuff.
Just give her the boot.
