Unlimited or Excessive Exclusivity Period
"Seller agrees to negotiate exclusively with Buyer until the transaction closes or is terminated by mutual agreement."
"Exclusivity period shall be 60 days from LOI execution, automatically terminating if Buyer fails to deliver due diligence requests within 10 business days."
Analysis: Open-ended exclusivity locks you in indefinitely while the seller slow-walks the process. We've seen buyers trapped for 6+ months while financing costs ballooned. Always cap exclusivity at 60-90 days with clear termination triggers.