If you are a cannabis business owner who believes it is only a matter of time before cannabis becomes federally legal, you also probably believe that competition from big pharma, big tobacco, or big alcohol will be your biggest worry when that day arrives. Or, you may think that the moment legalization happens, you have to sprint across state lines to grow quickly to defend your market share. Without minimizing any of these concerns, which I share, a much bigger risk, because it is not being discussed, is poised to jump you when you are not looking—this risk: being sued.