son turned 18 dec 29 , 2012 droped out of school 2 yrs ago how do i go about stopping child support

In most cases and unless your son has special needs as defined by Florida Statute, child support will terminate when the child turns 18, ie, emancipates, or is still in high school and actively pursuing his/her high school degree. Sound like in your case neither of these things are occurring and you should be filing a motion to terminate your child support with the court. You may be entitled to a credit from the other parent for all payments made since your 18 year old dropped out of high schoool.