Question: When Saul buys Jesse's house from his parents, he said that he showed their lawyer, Mr. Gardner, "all the pertinent financials", meaning $875,000 in cash available to buy the house. Jesse only had $450,000 and that money was not in any account. How did Saul show Mr. Gardner that he had $875,000 in cash?
Answer: In all likelihood, he sold some more meth.
Question: What was the purpose of the flashback at the start?
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