" When doing the property inspection, take note of the following things: • Mold and mildew • Undocumented pets • Broken window blinds •  Holes in doors or in walls •  Evidence of extra people living in the unit •  Smoke detectors and carbon monoxide detectors (if required)—make sure they exist, are up to code, and work •  Leaks under the kitchen and bathroom sinks •  Dripping water from the bathroom or kitchen sink • Dripping water from the bathtub •  Whether the toilet is continuously running • General cleanliness of the property •  Items piled against heaters or other fire dangers "

― Brandon Turner , The Book on Managing Rental Properties: Find, Screen, and Manage Tenants With Fewer Headaches and Maximum Profits