I would take the advice to sit down and talk to him personally, but if you’ve already done that, it’s not a fight I would get into. It’s really not worth it. Even if Parent 1 drags Parent 2 to court and gets him to pay it’s likely he’ll be angry and resentful at having to do so. Is going to one of these schools worth alienating Parent 2? But, chances are what will happen is it will be a lot of fighting and you won’t get the funds anyhow! Then you’re stuck paying for a school you can’t afford. So much easier to just cross those schools off the list. Still plenty of great places to go.
Also, know that your EFC is not what you’re going to be expected to pay. Use the school’s net price calculators instead. My son’s EFC is zero. He is NOT paying zero. 