Can I sue a lawyer

There isn't really enough information to answer your question.  In general, if you have reason to believe that your child support is set incorrectly, your best course of action is to consult with an attorney about filing a petition to modify child support.  In order to modify child support, you will need to show that there has been a substantial variance of at least 15% between what was originally ordered and what would be ordered using current information when calculating child support pursuant to the Tennessee Child Support Guidelines promulgated by the Tennessee Department of Human Services.  If the issue is that your employer is not withholding child support from your paycheck, you can always pay child support by making the payment yourself directly to the State of Tennessee's Child Support Receipting Unit.  The website below has information that can provide you with how to do so, and it includes options to pay electronically or by mail: https://www.tn.gov/humanservices/for-families/child-support-services/child-support-payment-information/paying-child-support.html Be sure to include both the Court Docket Number, the TCSES Number, and follow the directions set forth in the website above carefully to ensure that you get credit for your child support payment.