Alabama License

Can someone tell me if Alabama inspectors are required to have a license. I have a client that wants me to go and inspect some apartment for him.

Yes>

Yes, you need a license for single family homes 1-4 dwellings. You do not need it for commercial buildings or apartments if they have more than 4 units.

28 units looks like commercial to me. My TN licensed may reciprocate with AL, anyway. I have to do some checking. Thanks,for the help.
Rick