First, in my humble opinion, a home inspector should belong to InterNACHI, the world's largest home inspector association. Without out InterNACHI, a home inspector will be without all of the education, benefits, and tools that are available. It is one of the most important things for a home inspector to do. It is also voluntary, so only home inspectors who really care about their craft join.
After that, it comes down to experience and character. FInd a home inspector who hs the right experience. Also make sure that they are a good fit for YOU. Spend some time talking on the phone with your potential home inspector and see what he is like. Does he communicate well? Does he seem to have a knowledge of what's going on when you ask him questions?
When it comes down to it, looking for "home inspectors in Tupelo MS" may not be as difficult as it may seem. Feel free to contact me and I will be happy to answer any of your questions. I look forward to hearing from you!