My fiance has recenlty currently being transfer to St Petersburg Work Release center. Is it trus that he will be eligible for 8 day light hours or furlough each week to visit his family?

Yes, that is the step-down pattern for inmates close to the door. They are given little bits of freedom to slowly rejoin the family unit and successfully get back into society. Your fiance needs to be on top of his game in following directions and being where he is supposed to be at all times. This is not a time to play it fast and loose.