Still not divorced, she filed taxes separately, did not have majority custody (we’re 50-50% and I had a few extra nights in 2021) and I make the majority income. I’m well within my rights to claim both children as deductions. She went ahead and beat me two it and claimed one of two kids.

Based on my understanding of IRS Qualifying Tax Rules this is tax fraud.

I informed lawyer, and am waiting a response.

Not sure what to do here.