I understand the problem. But using BIG LETTERS to shout at me is not helping. Please do not do that - I am trying to help you here.
Now then, if there is no case history or record, then he should not file the I-90. It will be denied and he will have wasted money and possibly exposed himself to the Immigration enforcement agents.
As far as whether you can file without affecting him, I think that is a bad idea. Why? Because he has a warrant for his arrest for not paying child support, which can be viewed as a crime involving moral turpitude.
What I would do is wait to find out the result of the FOIA request. Once he has a full copy of his entire record, he will better be able to determine the next best step. If he did, in fact, once have a green card, then the I-90 needs to be filed to apply for renewal. And if he has been a permanent resident for more than 3 years, then he should apply for naturalization to US citizen after getting his new green card.
I hope I have answered your questions. If you want a 30 minute phone call to discuss this or anything else, let me know. I can send you an offer for that.
Otherwise, kindly rate my customer service with a positive rating so I get credit for doing my job. You can keep asking questions even after you have given a rating.
REMINDER: I do not get a salary here, so your positive rating for my customer service is the only way I am rewarded for doing my job. If that does not happen, it is as if I never worked; I am sure you agree that would not be an ideal outcome. So please do not forget to give me 3 or more stars, or any smiling faces, in order to help me get credit for doing my job.
Keep in mind, you are not rating the state of the law or the outcome of your situation, which I cannot control. You are rating my customer service. Believe me that I always want to give you good news. But if the outcome is not what you wanted, blame the government and the law, not me. I am only a messenger.
Negative ratings are reserved for Professionals who are rude or unprofessional. Giving me a negative rating does not help you get a different answer or outcome. So do not give a negative rating if you need more help, or if I misunderstood your question. Instead click REPLY so I can continue to assist you.
A BONUS is appreciated, if you feel I've earned it.
If you have questions in the future, write FOR JAMES in the question and I will be your personal Expert in this category.