Can someone help with this?

John has purchased a large cow-calf ranch. This ranch is located south of Billings, Montana, and is comprised of 80 percent federal land and 20 percent deeded land. He will be operating this livestock enterprise by himself with only the occasional “day “ help at branding and gathering. What type of business structure should John employ and why?

Limited liability? S corporation? Something else?

I have been trying to figure this one out for a while and am not sure due to the fact that the land is federal/deeded.