The only true way to find out is to have the land surveyed. This would tell you for sure who's side it is on.
Check the boundaries, or just be neighborly and split it.
From what I know, it doesn’t matter who owns the tree on a property, if it falls on your house, it’s going to be the owner of the house problem. That means your insurance is going to pay for the damages and you’ll have a insurance claim on your records.
I agree with above.
If it falls in your property then it's your responsibility. Only way to k ow that for sure is a survey. You might get a general idea if you look at the online county property lines (GIS) and see if you can tell where the tree is and the part that is down.
@Bernardino Graziano if the tree is damaged/dead but Hasn’t yet fallen AND the property owner is aware of the damaged/dead tree, then my understanding is that it would be the responsibility of the person who’s land it is on, even if it falls on someone else’s property.
Take some pics, check the boundary lines and offer to pay a portion if the tree is on your property too. If it isn’t clearly on your property, you shouldn’t have to pay for it bit I’d also weigh the risk of having it fall and doing major damage versus just chipping in a bit to get it handled before any damage is done.
If it’s close then agree to the cost as you will spend the $ getting it surveyed and if it is on both properties you probably end up splitting it anyways.
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