Originally Posted by Lizzie
Can you medicate her to calm her down?
If she is creating an atmosphere in which the other cats cannot thrive, then you may have to choose to oust her in some way because she should not deprive them of their quality of life. I'm putting it that way because it is so easy in these circumstances to feel guilty because you feel that you can't cope, you are giving up. Look at it as purely as you can from the perspective of all your other cats.
How well was she doing in the park after she was dumped? Is she capable of surviving if she joined your feral cats at work?
I'm really sorry you are being faced with such hard questions and choices. Some cats seem to have been sent to test us to the limit.