When Cutting a Leaning Tree, Where Should You Start?
If a tree is leaning, it carries an enormous amount of power you can’t readily see. Starting at the bottom would mean that all of that power is eventually going to be right where you are cutting, because that’s where the pressure is.
The best case scenario would be to leave it alone. However, if you need to cut it down, start as close to the top as you can. The more of the top you can take off the tree before you get the to bottom of the trunk, the less force the tree has — and the safer you’ll be when you cut it.
You can trim the branches off first, but that’s really more a matter of convenience than safety. Always wear your safety gear and take steps so that you control when and where the tree falls instead of letting the tree control it.