First step is to go to your local prothonotary, which for me was in the family and civil service room of the Allegheny Courthouse in downtown Pittsburgh. As seen in Appendix A, TLDEF Client.An original deed form must be completed, signed and notarized. We suggest that you consult an attorney for assistance. How do I change my name on the deed? The Allegheny County Real Estate Office handles owner name changes, please call . Note for residents of Allegheny or Lancaster Counties: Our documents are designed to meet state requirements for requesting a name change. To change, add or remove a name on your deed a new deed needs to be recorded reflecting the change. Call the Allegheny County Department of Court Records at and tell them you're looking for information on a legal name change. Fill in the blank form formatted to comply with all recording and content requirements.