Who should be responsible?

[Robert J. OConnor]

Originally Posted by acox

... it appears that sometime in the past, a tree limb must have fallen onto the service line, pulling the mast toward the road. It is leaning, and it ripped a hole in the soffit and roof.

Determining the causes (and proper repair) for a defect is beyond an inspection. But out of curiosity did ya see signs of impact damage and/or large broken branches nearby that would lead you to believe it was caused by a tree limb?

It might also just be movement from an inadequately attached mast, occurring over time (I also don't see any substantial mast attachments).

JMO