There is a very large tree (oak I think) in front of my grandmother's house. It's in the grassy space between the street and her front sidewalk.
One portion of the sidewalk has been lifted at one corner. It's a good 3 inches above where it should be. The portion next to it has also been lifted--but not nearly as badly.
I'm really concerned that someone is going to trip and fall--or just see it as an opportunity to make some money and sue her.
I'd like to fix this for her. Can anyone offer some suggestions?