Do you have a collection of serious buyers in your database? 

If so, that can be a smart thing to mention in your property listings, provided you’re specific. 

“We’ve got 16 serious buyers who have been approved for finance and are keen to buy right now – so if you want this property, you need to move fast.” 

Want to know why that sentence is so powerful? It’s because of the specific number. That suggests those buyers are real, not something that’s been invented.