A comprehensive guide to how much earnest money is required in Florida, along with details on requirements, payments, disputes, and refunds. Due diligence refers to investigating facts about the condition of the property, both financial and physical, as well as the area the property is located in.Due diligence money vs earnest money: How do they differ in a real estate deal? Due diligence money is a fee that buyers proffer at the time they make an offer on a home. In essence, it is the buyer's good faith payment to the seller. Learn about earnest money best practices and how real estate professionals can safeguard their client's deposit. Unfortunately due dilligence is forfeited if the deal doesn't go through. Generally, the due diligence period is ten days from the binding date, but this can be negotiated. If the contract was contingent on loan approval, then your earnest money should be returned. An escrow process begins after the seller has accepted a purchase offer, opening the negotiations to hash out an agreement with the buyer.