Yeah, there is that whole 7th law thing.
No, there isn't. She's not a wizard of the White Council, and while Evocation puts her in a sticky place, she A) does not commit violations (she only represents one already committed) and B) is arguably not human. Using her abilities won't get her Lawbreaker, and while a wizard or Warden is unlikely to pick up flak for just killing her on general principle, she's not beholden to the Laws of Magic for her Sponsored Magic.
Evocation is an odd choice beside Sponsored Magic, though - why not just drop this for more Modular Abilities? You can just avoid incurring debt.
Human Guise is completely redundant; Unnatural Constitution is a little redundant. I agree with DMW that while it's not explicitly stated you can't stack Human Guise into Human Form, it's totally not okay to do so since it negates the point of Human Form. You just shift into your alternate form and walk around under Human Guise, which is pretty much getting a +1 for nothing.
I don't really agree about the focus items. The spirit of the game seems to me to be against stacking foci into enchanted items or Items of Power...but it's not a big issue. If a GM will let you get away with it and you don't mind losing the coolness of foci, go ahead and merge them. Otherwise your setup is the correct one.
I am also curious as to the details of your Sponsored Magic that make it -3 and not -4. As a GM this would be the first question I'd ask, a full write-up of your Sponsored Magic (areas of specialty, debt, et cetera).