@2plustrio , I am also a single parent to three kids and I understand your desire to free up more time to be with your children. And honestly, more time for yourself to feel less jumbled. This is a very personal decision and I am loathe to try to tell you what makes sense for your family. But I’ll proceed with the caveat of, “if it were me.”
If it were me, and the decision to give up one job had already been made, I wouldn’t let the FACHEX issue be a big factor in the decision. That includes a good group of options, but you can’t guarantee your son will choose to attend one, much less be admitted into one of those schools. That, coupled with the uncertain financial contribution from the other parent creates too much doubt to use the FACHEX as a factor. The simple truth is your son may be financially forced to attend an in-state public, which seems to be his preference anyway.
If it were me, I would make the job decision based on a combination of those other factors you mentioned. But I’d definitely cut one job loose. I reduced my outside the home obligations a year ago. This past year has been great for the kids and me. Having the extra time (and less mental wear and tear) has been a boon to our family. It would always be better to have a little more money, but EVERYTHING is better since I eliminated that extra work. As long as you can afford it, you should leave one job ASAP.
If it were me, and the ex will not provide definitive answers regarding how much he will contribute to your children’s education, I would assume he will contribute nothing. That assumption would be more certain if he has children to support with his new wife, and grow more certain with each additional child they have. If it were me, I’d make college decisions based on what I could afford myself. If your ex helps, I could consider it “found money”, but I would not assume help is on the way.
If it were me, I would start helping my child decide which in-state public is the best option for him. I’d start ensuring he does what he needs to academically to get accepted at the target instate publics. I would assume that is his most likely best suited financial option.
You’re a great mom and you’ve done a great job with your kids. I’m sure that whatever you decide to do will likely be the best option for you and your children. You didn’t get this far by making bad choices. Keep up the good work!