So what do you do for housing for seasonal/migrant workers who have no intention of signing a year long lease, in an extremely landlocked area (Vail's ski range

So what do you do for housing for seasonal/migrant workers who have no intention of signing a year long lease, in an extremely landlocked area (Vail's ski range is leased from the national park service), in an area where building costs are much higher than typical (general conditions alone are huge, plus inability to build in the winter)? Also, strict height limits for buildings.