I sold 19 tired-owner signals out of my management book, $5,700 total
I manage 61 doors for 22 owners. Every year two or three of them tell me some version of "I'm done, the last vacancy took the joy out of it." For four years I just nodded and re-leased the unit.
Last spring I built the smallest possible thing to catch that. Inside the owner portal I already pay for, I added a checkbox on the annual renewal: "I'd consider selling this property in the next 12 months, please have someone contact me." Plus a rule in my own head that if an owner says the tired sentence out loud on a call, I ask them to tick the box themselves. I never tick it for them.
What happened over five months: 19 owners ticked it (spread across 26 properties). I had three local buy-and-hold investors who wanted first look. I charged $300 for an introduction where the owner had agreed in writing to be contacted, and I sent each signal to one buyer at a time, 72 hour window, then it moved to the next buyer. 19 introductions, $5,700 collected, 4 went under contract that I know of.
The part that nearly broke it: my first version of the checkbox didn't say anything about who I'd share it with. One owner found out an investor called him and was upset, fairly. My attorney rewrote the consent language and my management agreement, and she told me plainly that whether I can take a fee for this at all depends on my state's license rules, so get your own attorney on that before you collect a dollar.
What I'd keep: one buyer at a time, and the owner ticks the box.