In our case, we put the house on the market through a realtor of our choosing. Once we had a finalized offer, the company (probably a third party of some sort)

In our case, we put the house on the market through a realtor of our choosing. Once we had a finalized offer, the company (probably a third party of some sort) took ownership of the house and paid us the offer price. At that point, had the buyer pulled out it would have been the companies problem. This was a like three housing market cycles ago and the market was in an upturn, so there really wasn't much risk to the company. Another buyer would have been along right behind the first.