My question involves court procedures for the state of: Pennsylvania

I have been served a complaint via certified mail. I have not filed anything as of yet. I live and work in a separate state. I have never been to, resided in, or worked in Pa. nor do I have any contacts there. I am trying to find out how to write/file preliminary objections (pro se) so the case is dismissed due to (lack of) venue and/or jurisdiction. I have a few questions:

What forms are required to be filed in addition to the objections (cover letter etc.), and how do I compose the objections?
Would it be better to have preliminary objections challenging the specific allegations in addition to the venue/jurisdiction objections, or simply leave it with the jurisdiction/venue and hope for the best?
How do I go about filing this, since I am thousands of miles away?