This is a packet of various forms that may be used to file a simple motion OR an Answer to a Petition. A petition for custody would be filed in the juvenile, family, or domestic relations Court with jurisdiction over the child, at the county level.After being served with a petition or counterpetition, the other party has 20 days to file a response. If the respondent files a counterpetition, the petitioner should then file an Answer to Counterpetition, Florida Supreme Court Approved Family. What should i include in my counter petition to a parenting plan in Florida? A case number is assigned and an official court file is opened. Delivering the petition to the clerk's office is called filing a case. Print the document, which will include two pages to file with the clerk. If you find a valid address for your spouse, immediately proceed to step 5. If a response to a petition is not filed, the petitioner may file a Motion for Default, Florida.