Child support stops at 18 per court order but can the father legally drop a child from his insurance if they are going to be a full time college student?

This is hard to answer Can you give more info It depends upon the state and type of insurance.

My experience has been that the child is disqualified at age 18 unless you present the insurance carrier proof that the child is a full-time student every six months. This can be done by FAXING a copy of the student's class schedule.