Factual error: When the planes crash over Albuquerque, when the bear is falling towards Walt's house, there is a quick shot of Albuquerque suburbia and mountains. Two major streets are visible, the one on the right is Eubank Blvd and the one in the lower left is Wyoming Blvd, both which run north and south through the city. This means the shot is facing north. There are no mountains immediately north of Albuquerque as shown. The closest mountain range, the Sandia Mountains, are on the east side and wouldn't be in that shot. The closest mountain range in the north are the Jemez Mountains, which are 40 miles away. They would barely be visible in that shot (they would look like blue hills in the distance).
Continuity mistake: As Walt is talking to Saul in his classroom, there is a pen under the desk by the chair leg Walt is standing by. It is next to the chair's front left leg. A few moments later without being hit, the pin moves to the front right leg.
Continuity mistake: At the start, Badger is on a bench talking to another guy. In the background there are people walking around in a park behind them that keep teleporting around or walking through multiple times from the same direction between cuts.
Answer: Saul is a criminal himself. It's not past his capabilities to forge some documents to show the 857k is available.
Ssiscool ★
Forged documents by Saul is most likely the correct answer.
The_Iceman