“Married” man??

Soooo I’ve kind of been talking to this man who is legally separated from his wife, has two kids, and he’s moving forward with the divorce. I am a child of divorce and I’ve always sort of battled with the idea of technically dating a married man. I just want an opinion from an unbiased source... should I keep moving forward with this man even though he’s not fully divorced yet or put the brakes on until all papers are signed????