Use this program to ask (or "petition") the Family Court to change a support order if there is a "change in circumstances." Spousal support cases are started with a spousal support petition in Family Court.There is no filing fee in Family Court. I do not wish to apply for child support services. â–¡ I am not eligible to apply for child support services because I am petitioning for spousal support only. 8. A support petition is a form that tells both your husband (the respondent) and the Judge what you (the petitioner) want. The Law Department assists local and out-of-state custodial parents in establishing an order of support from non-custodial parents. 1. Fill out a child support modification petition. 2. File the petition with the Family Court that most recently established your order. 3. Step 1: Complete the taxpayer information section.