Seems easy enough... all a home inspector really needs to know is proper structural issues to watch for, utility issues to watch for, and know the codes and violations of such. It's not rocket science and you're probably over-qualified, but you will need to study up...
Disclaimer: I'm not an inspector and have no idea what it really takes. I'm just looking in from the outside and the guy that inspected my house when I bought wasn't that thorough...