A Professional Home Inspector is able to inspect residential properties and, unless prohibited by law, commercial properties. Please check with the Texas Board of Professional Engineering to determine when a Professional Engineering license is required. Professional Inspectors are able to work for themselves. A Real Estate Inspector is able to inspect residential properties and, unless prohibited by law, commercial properties. Please check with the Texas Board of Professional Engineering to determine when a Professional Engineering license is required. A Real Estate Inspector is required to work under a Professional Inspector.