I've been to see Hamilton and it was even better than I expected. My sister managed to score tickets as a Christmas gift for me a year before our show date when they went on sale online. She didn't have to go through the secondary market- she was lucky. She paid $377 and some change for 2 tickets for the first row of the mezzanine and on the end on right. They were a bit of an obstructed view, but we didn't miss much at all as not much action took place out of our view. I believe it was just a few lines sung from that side of the stage. The closer you are to the center, the more likely you are to have a better, unobstructed view. If your daughter is a musical theatre fan, or a Hamilton fan, it will totally be worth it and she will already know how hard tickets are to get and will appreciate them anyway they come! Hamilton also offers a lotto drawing for every performance that is free to enter- which has scored tons of people tickets who didn't have any in the first place, but also won better seats for ticket holders.
Good luck getting tickets- to you and to everybody else above. It isn't easy, but it's worth it!