Nick May (Machine May) is a very cool guy and a buddy of mine, but he's a BJJ white belt and has very serious health problems right now. I really doubt he could help you with MMA instruction.
I'd check out Don Richard in Holly, Michigan. Or Angelo Popofski (sp?) in Walled Lake, Michigan. Both are brown belts in BJJ under Caique and are experianced MMA competitors. www.warriorway.com to contact them.
If you are closer to West Michigan, then check out Rob Masko. Rob's ground game and sub skills are black belt level and he has A LOT of MMA experiance. In my opinion, Rob is the best MMA instruction in Michigan.
If you are near the Kalamazoo area, check out the Southside Dojo. Some great MMA fighters and sub grapplers and Judokas there.
If you are near Grand Rapids and are looking for BJJ instruction, check out Clint Crabtree. He's a Jorge Gurgel brown belt and runs an awsome school in Grand Rapids.