Yep. We have a couple of people we let hunt our property and we have to have them sign a waver promising not to sue us should they fall out of a tree or something. I hate to do it because these guys are friends of ours but they bring their buddies along and we do not know them.
Re: 29 - I have an umbrella policy for our land and don’t have the two hunters who use it sign a waiver, but I also make it clear - no guests. Period. Ever.
One year I found two nice deer stands setup in an area where my hunters don’t hunt. Took them down and gave them to one of my regulars. Later found out it was a couple local guys who set them up and were regularly trespassing on posted land in the area. Thankfully one moved away a few years ago.