What should I actually do during due diligence?

Pay the fee, then quote insurance and pull the flood determination before you book inspections. The cheap checks end the most coastal deals.
A person kneeling to inspect a crawl space entrance at the side of a house
The short answer

Spend your due diligence period in order of what can kill the deal fastest: pay the fee, get an insurance quote and a flood determination in the first 48 hours, book the inspections in week one, and read the HOA and utility documents while the inspector writes the report. The expensive mistake is not skipping an inspection, it is spending three weeks on inspections and finding out on day 25 that the wind premium or the septic permit changes the whole deal.

In North Carolina you are not buying a package of contingencies. You are buying time. The Offer to Purchase and Contract gives you a Due Diligence Period in which you can investigate anything you want and walk away for any reason, and when that period ends, almost all of your protection ends with it. Everything you pay for during that window is yours to spend and yours to lose.

So the question is not what you are allowed to do. It is what you should do first. Here is the order we give our buyers in New Hanover, Brunswick and Pender counties, and what changed in the contract this summer.

What changed in the 2026 contract, and why it matters on day one

NC REALTORS released its 2026 residential forms on May 27, 2026, with the changes taking effect July 1, 2026. Three of them land squarely on the start of your due diligence.

Paragraph 1(i) of Form 2-T is flagged as a major change: if you do not pay the Due Diligence Fee on the Effective Date, you now have until the end of the next banking day to pay it before you are in breach. Paragraph 22 adds a definition of banking day so that the deadline can actually be counted. That is a genuine improvement for buyers who go under contract on a Friday afternoon.

Paragraph 8(c) is the one that cuts the other way. The summary is blunt about the problem it solves: buyers were going under contract, not paying the fee, inspecting immediately, and terminating before the seller could demand payment. The new language makes clear that the seller has the option, though not the obligation, to limit physical access to the property until the fee is paid, while leaving the rest of your due diligence untouched. In practice that means a seller can keep your inspector off the property on day two. Pay the fee the day you go under contract and the issue never arises.

The first 48 hours: the cheap checks that kill the most deals

Order these before you book a single inspection, because they cost little or nothing and they are the ones that most often end a coastal purchase.

An insurance quote on the actual address. Not a ballpark. A quote, from an agent who has the roof age, the year built and the distance to water. North Carolina homeowners rates rose by an average of 7.5% statewide on June 1, 2025 and another 7.5% on June 1, 2026 under the settlement the Insurance Commissioner announced on January 17, 2025, and in the beach areas of Brunswick, New Hanover and Pender counties the approved increases were 16% and then 15.9%. Ask specifically about the named-storm deductible, which is usually a percentage of insured value rather than a flat amount. Our guide to wind, hail and hurricane deductibles explains how that number behaves in a claim.

The flood determination. Pull the FEMA flood zone for the parcel, not the street. We have seen two addresses on the same cul-de-sac come back in different zones, and a lender will require flood insurance on a federally backed loan in a Special Flood Hazard Area. If the house is in an AE zone, ask the seller for the elevation certificate before you pay for a new one. Our Wilmington flood zone guide walks through reading the map and what the zones cost.

Sewer or septic, and water. Large parts of Brunswick and Pender counties are not on county sewer, and the county utility guidance says so plainly. If the house is on septic, pull the permit and the layout from county environmental health, confirm the number of bedrooms the system is permitted for, and budget for an inspection and pump-out. A four-bedroom house on a three-bedroom septic permit is a problem you want on day three, not day 25.

The HOA documents. Ask in writing for the budget, the current and proposed assessments, the reserve study, the minutes for the past year and the rules on rentals, fences, parking and short-term stays. Special assessments and rental restrictions are the two that most often change a buyer’s mind, and neither shows up in an inspection report.

Week one and two: inspections, and what to do with the report

Book the general inspection early enough that you have time to bring back a specialist. On this coast we add a crawl space and moisture look, a wood-destroying insect report, HVAC age and service history, and roof age, because insurers increasingly price or decline on roof age rather than condition. On older Wilmington houses, add a sewer line camera. On anything waterfront or fenced, decide about a survey, which we wrote about in do I need a survey in New Hanover County.

Then the part buyers get wrong. Paragraph 4(b) of Form 2-T gives you the right to conduct tests, surveys, appraisals and inspections at your expense. It does not obligate the seller to fix anything. What you hold instead is paragraph 4(g), the right to terminate for any reason or no reason during the period, with TIME IS OF THE ESSENCE printed next to it. That right is real, and it is the only one you have. A repair request is a negotiation, not an entitlement, and the answer depends on how the seller’s house is doing in the market. Our New Hanover County market update had the typical home taking 58 days to go under contract as of August 2026, against 37 a year earlier, which is why sellers are more willing to talk about repairs this fall than they were two years ago.

Run the loan on the same clock. Get the appraisal ordered early, because in North Carolina the financing is not a separate contingency that survives the end of due diligence. If the loan falls apart in week five, your due diligence fee and your earnest money are in play. We covered where that line sits in can a buyer back out after due diligence.

Where this gets complicated

You can do all of this correctly and still lose money. The due diligence fee is not refundable once you are past the payment deadline, and inspections, appraisals and surveys are sunk costs the day you terminate. Treat the fee plus every inspection you order as money you may never see again, and more of it on an older or waterfront house. The other thing worth saying out loud: a bigger due diligence fee is not the only way to win a contract. In a market where New Hanover had 1,249 active listings in August 2026, up about 10% year over year, a longer due diligence period is often easier to get than it was in 2022, and it is worth more to you than a shorter one with a smaller fee. We are brokers rather than attorneys, and your closing attorney has the last word on the contract and on any dispute over the fee or earnest money.

Related questions people also ask

How long is the due diligence period in North Carolina?

There is no standard length, because the Due Diligence Period is negotiated and written into the contract by the parties rather than set by statute. A few weeks is typical on an ordinary resale in our experience, and buyers often ask for longer when a septic system, a survey or an insurance question is involved. What matters more than the length is that the period leaves room to get an insurance quote, an inspection and a lender’s appraisal ordered without stacking them all into the final days.

Is the due diligence fee refundable if I walk away?

No, as a general rule. The Due Diligence Fee is paid to the seller for the right to investigate and terminate, and the seller keeps it if you choose to walk, which is the entire point of the fee. Earnest money is different: if you terminate properly during the Due Diligence Period, the earnest money is refundable. Your closing attorney should be the one to confirm how both behave in your specific contract.

Can the seller refuse to let my inspector in during due diligence?

Under the 2026 revision of Form 2-T, a seller has the option, though not the obligation, to limit physical access to the property until the Due Diligence Fee is paid, while the rest of your due diligence continues. That provision was added because some buyers were inspecting immediately and terminating before paying. Pay the fee when you go under contract and the question never comes up.

Your next step

Write your due diligence plan on one page before you go under contract: who is quoting the insurance, who is pulling the flood determination and the septic permit, when the inspector is booked, and what date the period ends. Our team builds that calendar with every buyer we represent through the Buyer Advantage Program, and we are glad to walk through it with you before you write an offer.

Schedule a consultation

Matthew Kane, Tidal Realty Partners, Wilmington, NC. NC Broker #297432, Real Broker LLC (NC Firm #C34379). (910) 372-6720, info@tidalrealtypartners.com.

Sources: NC REALTORS, Summary of 2026 Changes to NC REALTORS Residential Forms, released May 27, 2026, covering Form 2-T paragraphs 1(i), 8(c) and 22, and Summary of July 1, 2026 Forms Changes Now Available; North Carolina Offer to Purchase and Contract, Standard Form 2-T, jointly approved by the North Carolina Bar Association and NC REALTORS, paragraphs 4(b) and 4(g); NC Department of Insurance homeowners rate settlement announced January 17, 2025, statewide average increases of 7.5% effective June 1, 2025 and June 1, 2026 and beach area increases of 16% and 15.9% in Brunswick, New Hanover and Pender counties; FEMA National Flood Hazard Layer; Brunswick County Public Utilities Rural Sewer Program guidelines, read October 2026; Tidal Realty Partners New Hanover County market update, three months ending August 2026.

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