I know this is still a WIP, but I thought I'd comment on it since Maria is a cool character idea.
I don't think CAW has years like Hogwarts does; I think she would be a Senior? I'm a Brit so I'm not too sure so hopefully an American can help with that hahaha! Also, we don't have an American Ministry - it's the American Bureau of Magical Affairs. Because of this I don't think president is an option? I think it's called the Secretary of Magic, unless she wants to be the no-maj president - who knows!
Also, it would be good to clarify whether she was born in America or England, as she can't become secretary without being born in America or having a parent from America.
Okay, last thing, I swear. I'm just interested in the character is all! It would be a good idea to have the backstory question in here so we can see how she got to this position as it's super high up and would require a lot of work. Maybe also offer some insight as to why she chose to represent the cloaking party over the revealing party? I'd be interested in seeing it is all :)