Key Takeaways
Summary
22 items · 1.5–3 hours (spread across several days)
Why Due Diligence Matters Before You Commit
Buying a home is among the largest financial commitments most people will make. Once contingencies are waived and closing documents are signed, your options for walking away — or renegotiating — narrow dramatically. Due diligence is the structured process of verifying what you're buying before those deadlines arrive.
This checklist is designed for buyers who are under contract and working through their contingency period. It applies equally to first-time buyers and experienced purchasers, whether the property is a single-family home, a condo, or a townhouse. If you're still in the touring phase, our room-by-room walkthrough checklist may be more relevant at that stage.
Work through each category below in roughly the order presented. Some items, like ordering a home inspection, need to happen immediately after an offer is accepted. Others, like final title review, happen closer to closing day.
Licensed Home Inspector
Provides a professional structural and systems evaluation of the property, which forms the basis for inspection contingency decisions.
Title Company or Real Estate Attorney
Conducts the title search, issues title insurance, and reviews the preliminary title report for encumbrances or ownership issues.
Buyer's Agent
Coordinates due diligence timelines, requests documents from the listing side, and advises on contingency decisions.
Specialist Inspectors (Roofer, Structural Engineer, HVAC Technician)
Provides expert assessment of specific systems when the general inspector identifies concerns that require deeper evaluation.
Local Building Department (Online Portal)
Allows buyers to verify whether permits were pulled and finalized for additions, renovations, or structural work.
Mortgage Lender
Confirms rate lock status, appraisal order, and loan approval timeline so closing isn't delayed.
The Full Due Diligence Checklist
Use the groups below to track your progress. Items marked must are non-negotiable protections. Should items are strongly recommended for most buyers. Nice-to-have items add depth but can be skipped if time or budget is tight.
Disclosure Review
Home Inspection
Title and Legal Review
Zoning, Permits, and HOA
Financial and Utility Verification
Contingency Deadlines Are Hard Deadlines
Most purchase contracts give buyers a fixed window — often 7 to 17 days — to complete inspections and deliver any repair requests or notice of cancellation. Missing this deadline may mean you've effectively waived the contingency by inaction, even if you never signed a formal waiver. Track every deadline date in your contract and calendar them the day you go under contract.
Understanding Contingencies and What You Waive
Many of the checklist items above exist to support your contingency rights — the legal off-ramps that allow you to exit the contract or renegotiate without losing your earnest money deposit. In competitive markets, buyers are sometimes pressured to waive inspection or financing contingencies. Before agreeing to any waiver, make sure you fully understand what protection you're giving up.
Our companion article on purchase agreement contingencies walks through each type in detail and explains the risks of removing them. It's worth reading before your contingency deadlines pass.
Skipping Inspections in Competitive Markets
In fast-moving markets, some buyers waive inspection contingencies to make offers more attractive. This eliminates an important legal protection and leaves you with no formal recourse if serious defects emerge after closing. If you choose to waive, consider conducting a pre-offer inspection (with seller permission) rather than forgoing one entirely. Consult your agent and attorney before making this decision.
If you haven't already engaged a buyer's agent, this is also the stage where professional representation pays off most. See our overview of working with a buyer's agent to understand what that relationship involves and how to get the most from it.
This article is for general informational purposes only and does not constitute legal, financial, or real estate advice. Requirements, timelines, and disclosures vary by state and locality. Consult a licensed real estate professional or attorney for guidance specific to your transaction.