As someone who had a range on my property and hosted many many shoots, here's the best advice I can give you.
Look at the land very carefully and from aerial view. Double, triple, quadruple check that there are no structures or houses downrange, and if there are do everything humanly possible to prevent rounds from going there - to include over-head structure above the firing line that restricts over-shooting the berm. If you have guests shooting on your property, it's going to happen. I guarantee it. You don't want the repercussions of that. Don't underestimate the ability of people to fuck up and send one flying errantly.
Also, don't underestimate a bullet's ability to bounce off of dirt, hillsides, etc. Shoot tracers sometime, and you'll learn that they don't behave once they start impacting down range. A rail-road tie-box filled with sand is pretty foolproof.
Lastly, meet and talk to your neighbors and communicate that you like to shoot and want to be a good neighbor, and listen to their concerns. If you're a nice guy, it goes a VERY long way towards making issues non-existent.
If you just blast away, don't be surprised if the sherriff gets calls. I asked my neighbors to come and visit/inspect the range, and to verify that they weren't in danger, and told them to text or call me if I was being a nuisance. That helped.