North Carolina's standard Offer to Purchase includes:

There is no mandated 30-day due diligence period in North Carolina — the length is entirely negotiated between buyer and seller and can range from a few days to several weeks depending on the transaction and market conditions.

The NC Offer to Purchase absolutely contemplates inspections and investigations — the entire purpose of the due diligence period is to allow the buyer to conduct inspections, obtain financing, review title, and perform any other investigations they deem necessary before committing irrevocably to the purchase.

While financing is commonly pursued during the due diligence period, a mandatory financing contingency is not a required element of the NC standard form — the due diligence structure replaces traditional contingencies with a broad, unrestricted termination right, making a separate mandatory financing contingency unnecessary.