During the due diligence period, buyers have the right to cancel the purchase agreement if they discover something risky about the property. The timeframe for completing the buyer's due diligence in a CAR Residential Purchase Agreement is specified in the contract.Think of due diligence in real estate as doing your homework. Your homework includes scoping out the area, hiring inspectors, buying home insurance and more. At the end of the contingency period, the Realtor will ask you to "remove your contingencies . The attached due diligence checklist focuses on information that buyers attempt to obtain from sellers. Buyer's due diligence involves carefully reviewing these disclosures, asking relevant questions, and seeking professional inspections if necessary. A real estate due diligence checklist is also a closing checklist. Therefore, use it to keep on top of each phase of a real estate transaction. This process typically happens after a seller accepts an offer and before the deal is closed.