Thanks guys.for the feedback. My GVWR is over 26,000 but after digging a bit I don't think it matters as motorhomes are exempt from the chauffeur requirements and from the CDL (commercial) requirements. Here's the links, the first from Wayne.
FAQ License Types
http://www.michigan.gov/sos/0,4670,7-127-48296-235466--F,00.html
Michigan Vehicle Code (see (3)(g))
http://legislature.mi.gov/doc.aspx?mcl-257-6
Who needs a CDL?
http://www.michigan.gov/sos/0,4670,7-127-1627_8669_53324-213067--,00.html
Thanks Again!