I have come to the conclusion that the Guardian mainly operates on emotions, some, all? of which can be contradicted by reality and then their heads start spinning.
Quite amusing especially when they leave comments open.
A. (F2A) Spouses and Children of Permanent Residents: 77% of the overall second preference limitation, of which 75% are exempt from the per-country limit;
I have yet to come across anywhere requiring proof of legal status.
I am intrigued about all the paperwork involved in getting married as I have not come across that either.
Where I am you get a Marriage License from the County Offices, same place that deals with vehicle registration.
Presumably with a K1 you married and know the process?