[James Boston]

I don't know. The situation you've described is rather vague, and no pre-conceived arrangements seem to be in place. Here's my take though. In the case of an LLC, corporation, etc.. my understanding is that you don't own a share of the assests. The company owns the assests in full, and you just own a share of the company. If you want out, you have to find a buyer for your share. You and the buyer have to negotiate what that's worth. You can't just claim your share of the net assets, present or future value. I could be completely off base here, but without more details that's all I can come up with.