While waiting for my md I have started speaking with land owners about going on their land. I have found that friends hessitate but give permission after some queations. Others ask to be notified of special finds (ring,dog tags from wwii etc) and a few said they would rather I not. What lines seem to work the best for getting permission for you?
I guess I've had the benefit of already knowing most of the people I've asked. But you could tell them about all the junk you'll be digging up, and that you would be happy to haul it away for them. Or I guess the best possible thing you could say it that you would be happy to give them (or share) what you find. I think that would help them feel better about you digging up their property. If you show them what you have found, maybe that'll be enough to put them at ease and maybe they won't neccesarily want it after all. It does'nt hurt to butter them up a little somehow..good luck !!