I dont doubt for a minute that he will. The banks are not the 'experts' in this field. They rely on the info provided to them by The Donald and his merry men.

In the worst case scenario, he takes his share, walks away and starts again (I seem to think he has done that before also.

Some bank or other will always put the money up. The only way a bank can ever make money is by lending what you and I deposit at a higher rate. When the bank takes a shareholding they may be doing so in name only (but on behalf of their investors). I dont see too many investment banks going into liquidation