Most court actions require a specific form to be filed with the court. Some forms are "local forms," and were created for use in one court, and you may be able to get a free copy of a court form that you need by contacting the court clerk.
The Michigan State Court Administrative Office (SCAO) develops state-wide forms. Many are in PDF that can be filled in online, printed, and filed with the court.
Remember: Court forms are only tools to assist in the processing of a court case. The forms do not guide you through the court process. If you do not have an attorney, you will need to understand the laws pertaining to your type of case.