Your neighbor is not in a good position to know if your trees are truly dead or pose any kind of danger. That’s why hiring an arborist or tree service expert can be such an important part of the process. If the trees are still alive and don’t pose any threat, you’re in the clear (but you may want to document and photograph everything in case events turn sour down the road).

But if a tree is visibly dead and near the property line, you should remove it to be safe. If a dead tree falls on a neighbor’s property, they may have grounds to sue for negligence. If any branches on trees have died, it’s a good idea to cut them back for similar reasons.

Leaving the tree stump and letting it rot is never a good idea, as this leads to insect infestations and other frustrations. Additionally, decomposing trunks are at risk for diseases that spread out to the remaining plants and trees in the yard, thus ruining your whole outdoor aesthetic. It's usually best to remove the stump at the same time you remove the tree.

In general, trees should be planted no closer than 15 to 20 feet from your foundation. For larger trees with far-reaching roots like maples, oaks, or poplars, a good guide is to plant as many feet from your home as the tree’s height is expected to reach at maturity. Some trees, like elms and willows, should only be planted far from where their roots may encounter sewer or water lines.

Pruning is an effective way to prevent a diseased branch from infecting the rest of the tree. If the infection isn’t caught early enough and the pathogen has spread to the trunk or the majority of the branches though, it is too late to prune off the affected areas and you’ll likely need to remove the tree.