The answer is it depends. To make a determination more specific information would be required. What type of FSA is it? How long has the family member been with the Soldier? What is the intent of the Family member with regard to staying in the area? Is the family member authorized in the area? If the Soldier is fraudulently collecting the benefit it needs to be stopped. There are several ways in which the Soldier may still be entitled to collect the benefit if a family member is present. I would encourage you to visit the following links as they can provide clarification based on the specifics of the situation.