Legal Question in Family Law in Virginia

First of all, you haven't specified who these Virginia authorities

are who would be making this determination, i.e., DCSE or a Virginia Court

(and if the latter) which one which could make a difference in what answer

might be given.

Until such as the above as well as other relevant information concerning

the particular circumstances of the obligor (father) now motivating this request, e.g., family health crisis, job loss or reduction in work schedule, new child born or adopted into obligor's current family, etc., no reliable answer

to this question can be provided (in my opinion).

The father will need to prove a material change in circumstances in order to get a reduction of support, and owing you $22,000 is not a material change in circumstances. The new support level will be based on your gross income and his gross income, health insurance costs and who pays, and child care costs and who pays.

The court (or DCSE) may depart from the statutorily mandated child support guidelines because of his substantial arrears, but may very well not consider a deviation for that reason.