Perhaps you did not care for my answer to your question when you asked the same one several hours ago. Nevertheless, the same answer applies. Your divorce decree will control whether you have any right to force him to sell the house. If it doesn't require it, then you cannot have the divorce court force him to sell it. If there is nothing in the divorce decree about it, then you can talk to a real estate attorney. In Ohio, you could file for an action in partition to force the sale of jointly owned property. There may be a similar action in PA.
You cannot force him to sell a house. I don't understand how you were able to get divorced without having this issue settled. Most times a judge will not sign a divorce decree unless all property issues are settled. Regardless, you can file an action in partition which, if granted, will sever your interest from his and give you the freedom to dispose of your interest only. You should consult with a real estate attorney to find out the exact steps to take.