Pennsylvania Pa How To File Lawsuit - Magisterial District Court Guide. Pennsylvania small claims cases are handled by Magisterial District Courts with a limit of $12,000. This guide covers pa how to file lawsuit specific to Pennsylvania courts. The filing process is straightforward - complete the complaint form, pay filing fees ($50-$150 depending on amount), and file with your local Magisterial District Judge. Service is typically by certified mail. Hearings are informal and usually held within 30-60 days. PettyLawsuit helps you prepare Pennsylvania court forms, find your local MDJ, and understand the process. We generate demand letters and court documents tailored to Pennsylvania law. Get started in 5 minutes for just $29.