I have to sympathize with the property owners on this one; common law is one thing, common decency is another.
I can't imagine having the chutzpah to just pitch a tent on someone else's property!
I know that NH is less lawsuit-happy than MA, but wouldn't allowing strangers to use one's property casually open one up to the possibility of being sued if a person doing so was injured?
Personally, the only way I'd ever step ashore other than on public property is if my boat sank out from under me
and I had to get ashore to save my life!
Silver Duck