Home inspections aren't just for the home buyer or seller. You should have your apartment, condo, 'plex, or house inspected prior to signing your lease and moving in.
Is the dwelling going to be safe and sound for you and your family? Is the property owner going to have to be continually called to address issues? If you're paying the utilities, are the components working properly and maintained or are they inefficient and near the end of the life span?
The inspection also provides a thorough documentation of the unit prior to moving in to ensure that you receive your security deposit if the time comes to relocate.