Finding a reliable arborist starts with researching specialists in your area and checking their licensing and certifications. Use online resources like the Better Business Bureau (BBB) to conduct research on each company. Next, contact the arborist and ask the following questions to see whether they are the right fit for your project:

• Do you handle or specialize in dealing with the issue I’m having?

• Are you fully insured?

• Do you have customer references I can call?

• Do you have any third-party certifications?

• What equipment and strategies do you plan to use?

You’ll have to balance up the cost, the value of the tree (sentimental or otherwise), and the risk factors. An experienced arborist will help you understand whether transplanting is likely to be successful. The cost and hassle of transplanting a large, well-established tree are often not worth it, especially if the species is fast-growing and easy to source. The decision depends on the age and species of the tree, the conditions in the new site location, and how careful the company is when digging out and moving the tree.

If you’re wondering whether you can plant a tree where the stump was removed, know that the soil conditions won’t be ideal, so you should avoid it. The soil beneath the previous tree will likely be depleted of nutrients, plus there may be roots left behind that will seriously hinder the growth of a new tree. Also, if you use salt or other chemical solutions to kill the stump, these can linger in the soil for months or even years and prevent healthy growth. It’s best to choose a different spot that’s at least three feet away for a new tree, or wait at least a year and thoroughly amend the soil before you plant.

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.