Start with how the deed holds title. If you own the house as tenants by the entireties — a form of ownership for married couples — both of you sign the sale papers while you are married. After divorce, Pennsylvania law generally treats former entireties property as equal one-half shares unless a court order under 23 Pa.C.S. §3507 says otherwise.
A court order can change what happens with the property. The title company reviews the deed, divorce papers, orders, liens, and closing requirements; a Pennsylvania family-law attorney can explain how an order applies to you. You can talk with us while those questions are being reviewed.