Much like due diligence, the earnest money is generally given as a wire transfer or personal check. The standard NC contract also has a separate amount for earnest money which is not forfeited until due diligence closes.The fee is meant to incentivize the seller to complete the due diligence process and provide evidence that the buyer is serious about buying the property. 30 Day due diligence. This valuable resource serves as a treasure trove of information, providing a comprehensive insight into real estate documentation within Middlesex County. Earnest money deposits hold a buyer's feet to the fire to complete their obligations. If the contract was contingent on loan approval, then your earnest money should be returned. While due diligence money is nonrefundable, earnest money is refundable but only if the buyer decides not to buy the home.