Are there any legal and/or moral implications in hiring an able-bodied homeless person to temporarily live and guard an unoccupied plot of land that I own? This is to stop squatters (I notice the irony) and people from dumping garbage inside the lot. I originally thought of putting up some fencing or barbed wire, but I have my own reasons against the idea of putting up any sort of barrier and I'd rather not talk about it.

Given that there's no water or electricity yet on the property, the only amenity I can provide is to build a small shack.. around 6 sq-meters or whereabouts, a folding bed, stool, a small table, etc. How much would you think is fair to give him on a weekly basis?