What a Purchase Agreement Actually Is
A real estate purchase agreement — sometimes called a sales contract or offer to purchase — is the legally binding document that governs the sale of a home between buyer and seller. Once both parties sign, the terms are enforceable. Anything a seller tells you verbally but isn't written into the contract generally has no legal weight.
Before you reach this stage, it helps to have a working vocabulary of real estate terms. Our plain-language glossary of home-buying terms covers concepts like earnest money, escrow, and contingencies that appear throughout a standard agreement.
Purchase agreements vary by state, but most follow a recognizable structure. Understanding that structure — and knowing where to slow down — is the goal of this guide.
What you will need
The Sections That Deserve the Most Scrutiny
Not every line of a purchase agreement carries equal risk. These are the clauses where buyers most often encounter surprises:
Purchase Price and Earnest Money
The agreement will state the agreed price and the earnest money deposit — the good-faith sum you pay upfront, typically 1–3% of the purchase price. Confirm how the earnest money is held (usually in escrow), and under exactly what circumstances it is refundable. Losing your deposit is a real risk if you back out without a valid contingency.
Contingencies
Contingencies are conditions that must be met for the sale to proceed. The most common are a financing contingency (protecting you if your mortgage falls through), an inspection contingency (allowing you to renegotiate or exit after a home inspection), and an appraisal contingency (protecting you if the home appraises below the purchase price). Each contingency will have a deadline — missing it can mean waiving your right to exit.
Included and Excluded Items
What stays with the house? Appliances, window treatments, light fixtures, and built-in shelving are common points of dispute. If a seller has agreed to leave specific items, those items must be listed in the agreement. If the chandelier in the dining room isn't explicitly included, don't assume it will be there at closing.
Closing Date and Possession
The closing date is when legal ownership transfers. Possession — when you can actually move in — is sometimes a separate date. Confirm both, and understand what happens if the closing is delayed due to lender processing or title issues.
Title and Title Insurance
The agreement should specify that the seller will convey clear title — meaning the property is free of liens, legal claims, or ownership disputes. Title insurance protects the buyer if problems surface after closing. Verify which party pays for each type of title insurance policy (owner's vs. lender's), as this varies by state and custom.
Ask for Clarification in Writing
If your agent or the seller's agent explains a clause verbally, follow up by asking for any agreed interpretation or change to be reflected in a written addendum. Verbal explanations don't modify a signed contract. Getting clarifications in writing protects you if a dispute arises later.
How to Work Through the Document Step by Step
Read the entire document before asking questions
Start by reading the full agreement from beginning to end without marking it up. This gives you a complete picture of what you're agreeing to before you react to individual clauses in isolation. Note pages or sections that are unclear.
Verify every number and date matches what was negotiated
Cross-check the purchase price, earnest money amount, closing date, and any seller concessions (such as closing cost credits) against your written offer and any counteroffers. Errors or omissions in these fields are not unusual and must be corrected before signing.
Confirm all contingencies are present and properly dated
Locate each contingency you negotiated — financing, inspection, appraisal — and confirm the deadlines are accurate. If a contingency you expected isn't in the document, it is not part of the deal. Ask for a written addendum before signing.
Check the list of included and excluded items
Review any attachments or addenda that list personal property included in the sale. If specific appliances or fixtures were verbally agreed upon, ensure they appear here. If the list is missing items, request an addendum before you sign.
Identify any unusual clauses or addenda
Some agreements include seller-favorable clauses — such as an 'as-is' designation, a right to continue showing the property, or a kick-out clause allowing the seller to accept another offer. These have real legal consequences. Flag any clause you don't recognize for your agent or attorney to explain.
Have a professional review the document before you sign
A real estate attorney or your buyer's agent should review the final agreement. In some states, attorney review is a standard part of the process. Even where it isn't required, having a professional read the contract is one of the most cost-effective steps you can take to protect a transaction that likely represents a significant financial commitment.
After you've completed your review, compare your experience to what you'd expect from other contract types. Our guide on reading a lease agreement clause by clause shows how similar language appears in rental contracts — useful context if you've rented before buying.
This article provides general educational information about real estate purchase agreements and is not legal or financial advice. Contract terms vary by state and individual circumstance. Consult a licensed real estate attorney or qualified real estate professional before signing any legally binding document.
The content on this site is for informational purposes only and is not a substitute for professional advice. Always consult a qualified professional for guidance specific to your situation.