Illiria

Unless you have 5 or more GCSEs at A* to C grade then you do not have the equivalent to a US high school diploma. If it was EB3 other worker you were looking at then there is a clause where you have to show there isn’t a US based applicants available. Lots of Construction and Hairdressers available to fill any vacancies. Australia and NewZealand have much more flexible visa processes for those who just want to move there - US is mostly family based, diversity lottery (UK is eligible in the 2025 lottery), or professional level when wanting to move spouse and child as well.

Technically - Yes. America can refuse a visa if they feel he is habitual drunkard. That’s one of the questions on the adjustment of status application that comes later. Now at his interview they may allow him to present evidence he isn’t or they may just reject or they may allow him to just be rejected for a year to prove he isn’t and for those in the past with drug consumption they want to see that he complete testing in that year to show that he isn’t using. This will all hinge upon the embassy and what steps he has taken post conviction - did he complete any kind of rehabilitation, does he still drink, has he any other convictions, etc.

Here is a link to the uscis judgements on decisions to deny petition appeals - if you use the drop-down to select 129f fiancé visa and use the search words meeting and disability you will see the scenarios they do not think are serious enough. https://search.usa.gov/search/docs?affiliate=uscis-aao&dc=9491&query=Meeting This one was specific to not being able to travel due to disability - someone who needed two home helps daily was denied https://www.uscis.gov/sites/default/files/err/D6 - Fiancees and Fiances of U.S. Citizen (K-1)/Decisions_Issued_in_2022/APR012022_01D6101.pdf I would suggest you read some of the judgements to see the level of evidence they require to meet the standard of not having to meet the requirement. I used to read the appeal denial notices out of curiosity and the common themes are - prove the foreign fiancé cannot make it into the US, prove the us petitioner cannot travel (using any method at all) to meet foreign fiancé in their country or a third country.