I like how your story is going but there is one issue I find un real him going to hogwarts from what your saying and even with her reasoning it seems completely out of the blue him going to France for schooling makes sense or even out of the country but him being stuck in hogwarts near the mind reading old shite ablus that does not.
Author's response
It might make a little more sense in a few chapters why he is still going to Hogwarts.