We have decided to use one of our newly acquired fields as a communal garden. We want to invite some city folk in to help and take group ownership with us. How would you go about this? I think they should help right from the beginning.
I would probably check with a lawyer. I'd fret about someone getting hurt and trying to sue me over it. It sounds like you're trying to do a nice thing for your community and I'm sure it can be done successfully.
We did check with our lawyer. We still are doing this, it's going great so far. We do have insurance in case someone gets hurt. We did have our lawyer draft up a paper for everyone to sign prior to helping or planting.