So if Amex gives a MasterCard customer a Black card can MasterCard sue? If I have a line of credit with Chase already will they take BOA to court if they gave me a loan?

If a lender sued another Direct Lender or ISO and won, wouldn't that be precedent setting? That would be a pretty big deal!! Might even go all the way to Supreme Court!

I do read the contracts before they go out, and maybe I am missing something but isn't it the Merchant that is liable and breaching the contract?

I heard about this today, it can effect me (and several others obviously) and I also heard which Direct Lender(s) it is supposedly coming from. Sounds like someone is either flexing their muscles to intimate the little guys or just trying to maximize those retainer fees!