My problem with the ending
You don't end up in the back of a police car in hand cuffs just for shouting "I gave the judge forged documents!!" or whatever the exact comments Nash yelled at the end to diffuse the situation. Ha! It reminds me of the episode of The Office where Steve Carell shouts "I Declare Bankruptcy!!!!", as if that's all it takes.
For starters, the average cop knows very little about white collar crimes and Real Estate law in general. Even if the cops on the scene drove straight to the court house and picked up that case file, they wouldn't have the slightest clue what they were looking for. It's all complete hearsay at that point! It's similar to if you shouted "I dealt lots of crack" in front of an officer. He might search you and/or your car, but you wouldn't be in cuffs on the way to the station. The final scene just didn't work at all for me and detracts from the movie as a whole.
What makes the end even less satisfying, is that even if there was an officer on the scene (why would there be?) who specializes in those type of cases, Nash wouldn't stand a chance in court against against a giant like Carver. His lawyers would tear that case to shreds.