Should I marry an adulterer girl who has repented?
I may face a lot of taunts from the society about her previous illicit relationship and every other highlighted sin that may result in humiliation for me.
At the same time I also think that if I dont marry her, will anyone else accept her as In the society (in which I live) I feel it will be really hard to accept a girl with such kind of past."

If she has repented, then there really is no problem with it.