For a character in a novel, I'm at an impass as to how someone could theoretically attain a brand new, legal, government issued identity that can be used for business, banking and so on. The specific situation that this character is in is that for all intents and purposes they have no prior history as a person, they will not be found in any government data base or on the internet. What they have going for them is a very wealthy benefactor, extensive physical trauma to the brain, and following their getting an identity this character will be comming into money due to the benefactor.
So far, I've looked at applying for asylum and outright buying citizenship in a country.
Edit: To clarify the situation and add an alternate question. This character is a stateless person, would citizenship be needed to do business, have a bank account, etc?
For the first, this would stem from her feigning amnesia, knowing her name and how to do things but little else. It is enough for a search to be made and not find anyone matching her. To assist this she would have two gunshot wounds to the head that on a CT would confirm that she suffered extensive brain damage and survived it. So her claim isn't unreasonable. There are however issues assosciated with the plot that I would have to work around.
The second option I looked at is approaching countries where citizenship could be bought, such as in the case of Malta and others. However, I believe that the conventional "buy citizenship in X country with an investment" would require prior documentation, a background check, and you wouldnt just be allowed to get creative while filling in your information. For this I am entirely uncertain if a larger "investment" into said country would be sufficient for them to overlook the character having no prior documentation.
Ultimately this is Fiction, so there can be flexability and suspension of disbelief can be stretched a bit or the details left a bit ambiguous, however, I believe being grounded in realism is important to the immersion of the story. With that said, I'm looking for options from those more well versed in legal matters than me.