DH has a mediation paper that says he has 30 days to pay dr upon receipt of bill or 30 days to pay BM upon proof of payment. 
for two years now she has only shown receipts of paid bills. 
DH has informed lawyer who says we will discuss it in court (date keeps moving) 

we just received a paid bill today from bm showing a 2k bill that DH has to pay BM in 30 days from a personal check

we don't have 2k. We need to be able to pay dr with credit card just as bm can

any advice on what to do? 

there is no way we will get 2k in 30 days