Well.. she's nice enough, but we've never really gotten personal. She's 70 something and lives there alone. I'm concerned that she doesn't really have the means to take care of it. I looked up some stuff and it seems like oak blight, which is pretty much a death sentence for the tree. Which would mean she'd have to take down the whole tree. It's so big and close to the houses that it could easily cost a few thousand dollars. I feel so guilty about it, but it's starting to get scary, and I suppose my insurance going after her for a branch through the roof would probably be worse.
Guess I should just talk to her about it.