So your Mom petitioned your aunt 12 years ago? If so, at least another decade. She needs to keep an eye on the Visa Bulletin to see when her Priority Date becomes current, she can’t be scheduled for an interview until it is.
Good luck.
Which consulate? I assume London from your profile but just double checking! If it's London then there's a long CR1 specific thread in the UK sub forum.
If you were a citizen at birth, he didn't need to apply for anything for you (other than a passport if you wanted one).
Sounds like he may meet the requirements to have passed citizenship on to you, but best to check it carefully yourself - https://travel.state.gov/content/travel/en/legal/travel-legal-considerations/us-citizenship/Acquisition-US-Citizenship-Child-Born-Abroad.html
Were your parents married?
What's your Priority Date? Please fill in your timeline, there aren't many of us EB applicants around so the more we have the better, thanks.
And where were you born?
As I said above, that's just details of the documents IF they are required.
You need to look at the following very carefully and make sure you have everything on these lists. The police cert from Romania IS required, but there's no mention of national ID card on any of them.
https://travel.state.gov/content/travel/en/us-visas/immigrate/diversity-visa-program-entry/diversity-visa-interview/diversity-visa-prepare-for-interview.html
https://travel.state.gov/content/travel/en/us-visas/Supplements/Supplements_by_Post/MTL-Montreal.html (make sure you go all the way to the bottom of this page for extra info for DV applicants too).
Good luck.
Have you been given a checklist for your interview? If so, what does that say? The country specific guidelines are only to tell you exactly what document is needed IF it's required - but they're not all required.
I know you're in Canada, that isn't relevant. Plenty of people have to get police certificates from multiple jurisdictions, as per the table given above. Don't waste time, just start gathering the documents required as per the checklist.
Good luck.
OK, then it shouldn't take long, but do get started today to make sure you have it in hand before your interview. And make sure you get the exact document required - https://travel.state.gov/content/travel/en/us-visas/Visa-Reciprocity-and-Civil-Documents-by-Country/Romania.html
Good luck.
She can do that but should spend more time in the US than in Colombia - if she's suspected of not living in the US (as a permanent resident she's supposed to be - as the name implies - resident there) then she may run in to issues.
If her being able to work and grow the business is a priority, then it may be worth looking at the spousal visa instead of the K1. With K1 she'll have quite a long time before she can work (even remotely) or leave the US.
Illegal immigrants can't vote or become citizens without going through a very lengthy process, same as anybody else. Got a link to that thread? I suspect he's misunderstood something.