The eFiling system allows case documents, such as pleadings, motions, and petitions, to be filed with the court using a computer and Internet connection. You will need one copy of the civil complaint with original signature for the magisterial district judge.All legal papers filed in the Civil Division of the Philadelphia Municipal Court shall be electronically recorded in the CLAIMS System. b. Find top rated demand letter lawyers for Philadelphia, PA. Post your legal needs and get multiple proposals in hours for your demand letter from lawyers. Find information about the types of business filings and registrations you need. If you were to file a claim yourself in the Philadelphia Municipal Court, you would have to go to their office, which is on Chestnut Street, on the 10th floor. It is not necessary to mail it certified mail.