What do you look for in a...?

I have never had to board my horse anywhere but if I were to, I would look at these things: CLEANLINESS, condition of the horses, pastures (and how many), the fences, condition of the stall if the horse is staying in one, if the staff is friendly, everything else like the arenas and horse walkers are just major pluses but I'm betting you would pay more for those bonuses.