Doubt that the attorney is looking for branch certs. I cannot remember if PA provides a certificate to a bank or if they just stamp the charter application as being approved. The attorney may be looking for evidence of official registration. However, the attorney may also be looking for the articles of incorporation and/or bylaws that must be submitted with the charter application. I suggest asking for clarification.
If you keep living straight from the heart, you will know when to stop and to start.