Walk-through
Check each room for the condition of the flooring material.
Make notes of stains, rips, or excessive wear.
Check for problems with the grout, edges, or tearing of the floor material.
Check if there are any marks, chips, cracks, or holes in the walls or ceiling
Look closely for nail holes or other imperfections.
Check for any stains in the paint, it can be indication of water damage.
Check if there are any scratches on the cabinets, door jambs, trim, closets, and doors
Check if the insides of the cabinets are clean and in good shape
Check if the closet doors open and shut properly,
Check if sinks, faucets, and lights are in proper working order.
Test all of the fixtures to make sure they work.
Check the exteriors of any appliances (dishwasher or microwave) to make sure that they are in good condition.
Check the appliances to make sure that they operate correctly.
Check for broken, missing or discolored tiles.

Tips

Divide the checklist into rooms - be specific about any existing problems.
Make a note of what is contained in each room.
Even if you haven't found any issues, photograph the interior of the apartment for your records.

Rental Walkthrough Checklist