No. Most Hamilton fanfics tend to focus on relationships like Hamilton and Burr, or Hamilton's love life with Eliza or Angelica. Themes of Hamilton 'watching' fanfic are not as common as the more traditional relationship - based or historical - exploration themes.
Well, in 'the maggie hamilton story', Maggie Hamilton could be a normal person who has an extraordinary experience. Maybe she overcame great difficulties, or she made some important contributions in a certain field. But again, without more details, it's hard to say exactly who she is.
He might be quite surprised. Fanfiction often takes the story and characters in new and unexpected directions. Hamilton was a real person with a complex life, and seeing fictionalized versions of himself, his relationships, and his actions could be a shock. Maybe he'd be flattered that people are so interested in his story that they create their own interpretations.
Hamilton would probably have a complex reaction. He was a man who valued his reputation and the truth. Fanfiction often bends the truth for the sake of creativity. So he could be initially put off, but then as he reads more, he might see the charm in the creative interpretations of his life.
Perhaps he would meet historians or scholars of his own time. They could have traveled to the future too and are now studying how his actions in the past have led to the present - future situation. It would be an interesting encounter as they could discuss the different interpretations of his life over time.
Well, it could be really strange. He might be amused by the modern interpretations of his story. Some fanfiction might show him in different lights, like as a more modern - minded person, and he could be either shocked or intrigued by those portrayals.
It depends on your perspective. Some parts of the Hamilton story are based on real events and people, but it also takes creative liberties for dramatic effect.
Hamilton is based on real historical figures and events, so it's not pure fiction. However, it does take some creative liberties for the sake of entertainment and storytelling.