It might be doable in a dry climate. Zoning laws can be a pain. Where I live, a corral has to be 40 feet from the side property lines and 10 feet from the rear, and any shelter has to be 50 feet from any property line. Based on the shape of our then 1 acre lot, we have an L-shaped corral about 80' on a side for 3 horses. We scoop poop 2 times a day and feed them 3 times a day. We rarely get significant rain, but it turns into a mess when we do. The horses are doing fine, but it involves significant work.
Our granddaughter helping out: