[Ao7bei3s]

Can't speak for Japan, but in the US, the immigrant does have the burden of proof that all requirements are satisfied and not submitting enough evidence can lead to a request for evidence (RFE) or notice of intent to deny (NOID). And so the law firm we used had the opposite strategy: submit as much evidence as possible and really help the adjudicator check all the boxes. Our petitions tended to be 250-500 page documents.

[apwell23]

Yea exactly my thoughts. Onus is on the US immigrant to prove that they are committing immigration fraud.

[anigbrowl]

I think you're mean 'not committing...'? The US immigration system is almost uniquely hostile, by design.