Is she willing to send him a no-contact letter, the content of which is to be approved by you and it's to be delivered/mailed by you (so that nothing is added or subtracted), and agree to FULL TRANSPARENCY with you?
Ha! Their primary communication methods were email/facebook and her new cell phone.
According to her, they have been fighting and nasty (she sent me copies of these emails), and he blocked her emails/FB.
I did suggest she block email and phone number, but I have no way to verify that this is done or stays done.
Well, you wanted advice from someone who had been thru it (and I've also studied HUNDREDS of others who have), so this would be it: This is no time to put the fox in charge of the rules to safeguard the hen house.
If it were me, I'd love the chance to start dating her, but ONLY if she'd ended it with OM. And I would ONLY use as proof of that a full no-contact/transparency system, NOT her word for it.