Business for sale? What is my responsibility?

The prospective buyer and seller has a responsibility for understanding the business for sale.  Or do they? The listing agreement said... The offer said... The various amendments said... The buyer or seller says:  "but does it say this?"  The wise broker will say at the very most:  "My interpretation of the language is this....but you should check legal and accounting counsel." In a recent transaction the seller said, "I learned in my last [...]