I would talk to a lawyer as well - many give the first hour of the first meeting free - you can see where you stand for free.
And at least, DEMAND THE $$, and stop doing anything there until you get some sort of payment.
Your wife working there sounds like a gift, not a hinderance. Can she put any pressure on the money man to get you the $$? Can she cut a check for you?
You've gotta play hardball now, and pull out all the stops.