MollieSue, I'm going to throw out some ideas. You've probably already thought of them all, but in case you haven't...
-- Look at larger companies as well as small businesses. you can be an office manager for a corporation, for one department or whatever.
-- Check colleges and hospitals near you. You might be able to work in the business office, a department office, etc.
-- Consider state government (Civil Service) work. It need not be in office management. It can be anything you meet the requirements for.
http://agency.governmentjobs.com/michigan/default.cfm
-- Register with temporary and permanent employment agencies. Try OfficeTeam.com. I don't know where you are, but they have offices in Grand Rapids and K'zoo.