The Seller's Disclosure Notice is an essential part of a real estate transaction. In short, it's the condition of the home to the best of the sellers knowledge, which is signed not only by the sellers, but the buyers as well. It is to be provided to the buyer either before a contract is signed (provided on the MLS to be downloaded), or provided after the agreed upon number of days in the contract. It's best to have it provided up front, and here's why. Let's take a look at the wording first.
This part falls under Paragraph 7B, the property condition section. You'll notice there's 6 lines of wording if you haven't given the buyer the Notice up front. What does it mean? In general terms, you're giving the buyer 7 days to back out of the contract without repercussion if you don't provide it up front. These are also days from receipt of Notice, not from execution of contract. So if there's a number 3 written into the blank, the buyer has essentially a 10 day period to back out instead of however many days are written into the Option Period section. You'd be working against yourself.
Make it easier on yourself and do it up front. Your Realtor should have you fill this out when doing initial paperwork, or before it goes on the market.