It's not every day that you hear of a celebrity's children helping to convince a judge to reduce that celebrity's child support obligation - but that is exactly what Master P's children are doing. Master P's Kids Make the Case That Dad Should Pay Less Child Support, by TMZ Staff, August 21, 2016, tmz.com. In that case, Master P has petitioned the court to reduce his child support and spousal support obligations, claiming his income and assets are significantly less than they were when the original support amounts were set. In addition, Master P alleges that his 3 minor children live with him full time "because their mother's drug addiction makes it impossible for her to care for them." The three minor children all submitted letters to the court saying they're much better off living with their dad. From the article it is unclear which parent currently has primary physical custody.
There are two options in this case for Master P to get a reduction in his support obligations. First, if the evidence supports his allegation that his income and expenses have significantly decreased since the initial order, he may be able to get a modification of both the child support and the alimony. Both support obligations may be modified if there is has been a "substantial change in the income and financial status of either former spouse." O.C.G.A. §19-6-20 and O.C.G.A. 19-6-17(c).
In addition, Master P may have further support for getting a downward child support modification if the children are living with him full time, or even more often than they were under the original order. While it is unclear whether he is seeking a formal custody modification, he would likely be successful in that effort if he can show that his ex-wife's drug addition is a "change in material conditions and circumstances of either party or the child(ren)." O.C.G.A. §19-6-19. If custody is changed, then the child support obligation will shift to the noncustodial parent and he may even end up being the recipient rather than the payor.