One of the ways to demonstrate "the honest way of living" is to show certified pay stubs or paid taxes. Here is where AFIP comes into the picture. But there are other acceptable ways to prove that you are essentially a decent person, they just may be not spelled in the playbook to the same extent.
Perhaps I didn't make myself clear. As far as I know, migraciones does not ask anyone to demonstrate an honest way of living. According to Dr. Rubliat, that is required by the federal court when applying for citizenship.
I never heard of migraciones asking for proof of income (or payment of Argentine taxes) of someone applying for permanent residency based on marriage to an Argentine.
If they now do, it's good to know.
I don't think migraciones accepts any documentation without an apostille. And it is unusual (at least in my experience) in the USA to apostille or even to notarize any work-relates documents.
How would anyone "certify" (to the satisfaction of migraciones), pay stubs and taxes unless they had the apostille?
What
can be notarized in the USA are "official" doccuments as well
any document with a signature witnessed by a notary public.
A cover letter that cites "attached" pay stubs, bank statements, and tax doccuments that is signed by a CPA in the presence of a notary public can be notarized and then receive the apostille.
But this is meaningless if the OP is not applying for a "work" visa. If he was, wouldn't the company he works for have to be registered with AFIP to hire foreigners and wouldn't migraciones
insist on that before granting
temporary residency?
In that sense (and to clarify a sentence in my previous post), AFIP does get involved with the migraciones process when granting temporary work visas, but not (as far as I know) when someone is applying for premanent residency based on marriage to an Argentine.
I don't think there is (or would have been) any reason whatsoever for him to tell migraciones that he is working in Argentina when applying for permanent residency, which, by the way, is something I
strongly believe he should still do, even if he and his wife are not planning on living here.