Hey there —

Sunday morning. Coffee. The rent roll on a property I've owned almost ten years.

There's a column on that spreadsheet I almost never look at. It's not the rent. It's not the cap rate. It's the column three from the left — tenant tenure. Just the years. I started multiplying numbers and had to put the pen down.

The tenant in unit 2 has been there five years. Paid every month on time. One maintenance ticket the entire run — leaking dishwasher, fixed in 24 hours. By the math we walked through Monday, a good tenant quietly funds $34,254 of your mortgage principal by year 10, and $63,294 in total hidden wealth when you fold in the retention savings on top. She's halfway there. I knew the number existed — I'd written it. I hadn't felt it. There's a difference.

Then I looked at the column next to it: vacancy days. Zero. Sixty months. Every single day, the unit was earning. The typical single-family rental turns over every three to four years, and the TransUnion canonical $3,500 turnover bill we ran the math on this week — she's the reason I haven't paid it. Maybe twice. Plus the rent I never lost during the gap that never happened.

That's one tenant. One quiet tenant. One spreadsheet column.

And here's the part that landed hardest. We published the screening playbook on Thursday — the $35-vs-$3,500 prevention math, the Five-Layer Shield, the whole system for keeping bad applicants out. That's the front door. But the front door doesn't matter if the back door is left open. The retention math is the back door. And most of us spend ten times more energy on screening than we do on the tenants who already chose us.

So here's the question I'm sitting with this week. When was the last time you called your best tenant just to see how they were doing?

Not a maintenance check-in. Not a renewal letter. Not the quarterly walk-through. Just a five-minute call. Most of us only ever talk to our tenants when something is broken — which means the only voice they associate with us is the voice of a problem.

I'm picking up the phone tomorrow. The tenant in unit 2 has paid down half my mortgage and prevented two turnovers I never had to budget for. She deserves to hear from me before something is wrong.

That's the move this week. Open your rent roll. Find the longest-tenured name. Call them. No script. No agenda. Just "I was thinking about you and wanted to say thanks for being a great tenant."

If you do it, hit reply and tell me how it went. I read every one.

Martin