File the Summons and Complaint forms. Once you fill out your forms, you need to file them with the court and pay a filing fee.You must fill out an Answer, serve the plaintiff, and file your Answer form with the court. Generally, this is due within 30 days after you were served. Below are some of the most common forms for requesting, enforcing and ending child support. Take or mail the original and these copies to the court clerk's office and pay the filing fee. The clerk will write the date of your trial in the box above. Htm or in print format at the law library. The staff at the Law Library for San Bernardino County cannot explain or interpret the law itself and we are not permitted to give legal advice. Note: You will need the court case number listed on those papers.