First, make sure he is a member of InterNACHI, (International Association of Certified Home Inspectors). Also, make sure he is experienced. What did he do before he became a home inspector? How long has he been inspecting?
After that, spend some time with him on the phone. Talk to him about your concerns with the house, the things that caught your eye, or any other house related question that you may have. The information that you get from him then will often times show you what he will be like on the home inspection.
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