The reason to see a lawyer before you talk to him about money, is to find out where you STAND. That does NOT affect your ability to get him to put you on the business, so long as you don't go BLABBING to him that you've seen a lawyer! And the lawyer may well help you with strategy as to how to GET H to put you on the business before you broach anything else.

I DO have concerns about this whole business thing. He doesn't sound very logical about it, and it sounds like the profits from this business are very illusory. I mean, what exactly have his tax returns looked like for the last several years? Is he actually drawing a good profit/salary from this business, or is it always being plowed back into more inventory in the hopes of "someday" turning a profit? What exactly would an honest profit and loss statement from this business look like?