That's what the statue says is needed to be able to go for a custody modification, but what does that mean? DH and BM are supposed to have 50/50 custody and all bills are to be split 50/50. Neither happens, and really hasn't happened in years. We've been documenting, of course, but is our documentation enough to PROVE that we've had the kids more like 70/30? We have medical/dental/school/EC's receipts and bank records to show that we've paid 85-90% of the the total.

So, if you were to go to court (we'd prefer not to, but we know it's the only way to make if official), what would you take with you? How would you approach BM with the subject? How much would you be willing to spend to update the plan with the actuality vs. what is COed?