I think you need to make a lot of decisions before you come asking for advice.
For example--what kind of boarding facility are you looking to run? What are you looking to offer? Are you hoping to cater to a specific discipline? What's popular in the area where you are planning to start this establishment? Are you wanting to purchase something that already has horse accommodations, or start from the ground up? Do you have a trainer in mind?
Those are just a few things to consider, that will help people get a better feel about what you're looking to accomplish. (:
The sensitivity of the internet baffles me.