When you're sitting with a seller for the first time, I like to have what I call the “Red Flag Conversation.”

I'll say, “Hey Mr. and Mrs. Seller, one of two things is going to happen now that we've listed the property: either we’re going to get showings—or we won’t. That alone gives us valuable insight. If we put your house on the market tomorrow like we're planning, and we get a surge of activity, that tells us something important.

“It means that the backlog of buyers—hundreds of buyers waiting for the next listing—have turned and looked at your property. If they like what they see online—the photos, the condition, the price—they’ll come see it in person. So if we see a surge of interest, a spike in calls and showings, that’s a signal we’ve nailed the price and did our job right.

“But the opposite can happen too. If we don’t get much activity in the first week or two, that’s a red flag. It’s the market telling us we probably missed the mark on pricing.

“There’s also a third scenar...