You are all excited. You just closed on the horse property you dreamed of owning. The excitement of moving your horses to their new home is there and you can't wait to get going. HOLD ON A MINUTE. Before you make the move with your horses, there are some things you need to do first. Especially if you will also be boarding horses.
First thing you need to do is to thoroughly go through the barn and stable area. Check to make sure that all is in good repair right down to the last nail. All the boards need to be in one piece and no sharp objects are to be protruding in the barn, that can possibly injure a horse. All the stalls should have hooks and water buckets or automatic waterers in the stalls. The stall doors should be in good working order. Plus the stalls should be cleaned, walls and floors. This will ensure that your horses will not be infected with any strange bug or illness from previously stabled horses. This is not to say that the horses before yours were ill or not taken care of, but more as a safety measure. You want to be SURE your horses stay healthy. Also, clean out the tack room and feed room. Don't feed any feed that has been left there. You may not know how long it's been there. Believe it or not, the horses can actually get food poisoning from bad feed.
Next, go out and take a walk around the property. Check the paddock area first, then the pasture. Pick up any large rocks or stones, or debris, that horses can injure themselves on. Fill in any holes and try to get rid of those pesky goundhogs that dig the holes. Horses get exercise by running around and sometimes cand get rough in their play. They can get stone bruises from stepping on rocks and stones, which can make them lame. They can also injure themselves on debris, like cuts from sharp metal objects, puncture wounds from nails laying around, leg injuries from stepping into holes, etc. 
Next, check your fencing. Make sure that is in good repair. If it is an electric fence, make sure the fence is working correctly. If your fence is broken somewhere, or there is a short in the electric fence, I can guarantee that the horses will find it, and you will be spending your time rounding up horses instead of enjoying them. I can assure you that catching horses is no easy task. They tend to make a game out of it called "Catch me if you can". Remember this: HORSES MOVE FASTER THAN YOU!!!
The last thing that needs to be done is to go over your pastures and get rid of the poisonous plants. Some of these plants can be fatal to horses. You can check with your local extension agent to see which poisonous plants are native to your area. One thing you don't want is to call the vet and find out that the vet is unable to do anything for your horse. It's much easier to just get rid of the plants.
What you have to remember is that horses are like 5 year old children. If you haven't horse proofed your property, chances are good that they will get hurt or into trouble. So, go around the barn and the property and invest a little extra time and work before you bring your horses home. At least it will ensure that your horses will be safe.
Or, you could get Morgans, to keep YOU out of trouble! ;-)
Seriously, yes, having moved onto a horse property of my own (albeit one without stalls - mine are out 24/7), there's a lot to do to get a place ready to bring your horses home - it is NOTHING like you think it'll be when you're boarding and just waiting to have your babies at home.
In fact, that's very much what it's like. Just think of it as babyproofing and you'll be fine. And, remember, after you've walked the property and gotten rid of all the bits of barbed wire and metal and glass and such off the ground - in a few months, you'll be walking out there and, voila!, there will be a piece of wire, or glass, or metal, that's bloomed. You didn't miss it - it just came up through the ground. Get used to it - it's an ongoing experience.
Very useful post, Brigita.