If you're buying a new home, be sure you negotiate a "final inspection" contingency, which allows you to bring in a professional to approve the completion of the house before closing. Be prepared for unpleasant surprises—legions of homebuyers have discovered unfinished construction or major defects
No one wants to buy a house with a mold problem. Unfortunately, these sneaky little spores aren't always easy to detect. If you're househunting, learn how to detect mold in homes, get the seller to disclose known mold issues, and negotiate around any mold problems that come to light in the course of the sale.
If you're looking for a house to buy, you probably want to know whether plates tend to fly around the kitchen, a bloodstain reappears nightly on the staircase, or houseguests flee the back bedroom screaming, right? But you aren't likely to see the word "haunted" in any home-listing advertisements. (A few people might be fascinated by the prospect of buying a haunted house, but real estate marketers don't yet consider spectral activity to be as big a crowd-pleaser as, say, granite countertops or a remodeled master bathroom.)
A home inspection, in which one or more professionals check out the physical condition of the house you hope to buy, is an important part of the home-buying process and should be a condition of closing the sale.