Co-parenting with a Monster

I separated from my sociopathic narcissist husband just over a year ago. We have a seven year old daughter together. He had been leading a double life with another partner, another baby (now x 2). I've since found out he frequented prostitutes, was in a one year "relationship" with one & that he also has two boyfriends. No doubt there have been many other affairs over the years, I will never know it all. The lies he told me are incredible, I still cannot believe what i was living with. He has made the past year hell with stalking, intimidation, denial, claims of mental illness, he successfully took our child without my concent - the other woman went along with this as she was spotted in the vehicle (i only got my child back with police intervention after 3 days of hell) & then attempted a second time (unsuccessfully). I have allowed supervised visitation throughout the year (supervised for my daughters safety due to his own mental health claims), but he's only seen her 7 times this year. He refuses to tell me where he lives. He sporadically pays $30/mth in child support (he has his own business & earns good money) but otherwise contributes nothing.

My questions are, in view of the coming year & future: how do i co-parent with this person? Is that even a possibility (up till now its impossible. I cannot even talk to this man)? How can i trust the other woman in his life? How can i trust her with my daughter? Everything in me violently rebels from the idea of leaving her with them - how could i trust they would give her back? He says many things but everything is a lie. Is there anyone in a similar situation? How did you cope & what did you do for your kids?