Originally Posted by dave the baker
You should have him check with his insurance company because the base of the tree in on his property and if it causes damage on your property it should be his liability. The over-hanging branch theory shouldn't really apply here like it does to leaves and fruit, but check with your lawyer to be sure. Trust me, it's worth a few bucks to make sure. Every state is different. If it is his responsability, for sure, for sure don't be bashful!!! It's your home that is in danger.
Hmmm, I say you go to a junkyard, pick up a wrecked sports car and park it underneath the tree's line of fall, under a tarp. Go out there every now and then like you are restoring it and pray for an ice storm to speed things along
Don't call the insurance co until you have to.