The easiest way to do this is to build a system for it:
Review your market area for any new just listed/sold properties and only work around them.
A phone call or door knock with the intent to gain an opt-in i.e. here’s a copy of the brochure, we’d love to invite you to the open, would it be ok if I let you know when it sells and what it makes?
Add them to your database.
Call them when the property is sold, based on that, what does that make your place worth?
Gain access for a market appraisal.
Keep them in your lead nurture sequence – where you call them when you list or sell a property of a similar type.
There are some scripts for reference in the Blue-print manual or available in the Resource section of Josh Phegan Digital.