It sounds like you found a problem you're improving. I don't want to stop you. But to me it feels like a bandaid fix, a short term stop gap for a larger issue.

The reason it got a negative response from me is that I look at the problem from a renters point of view, and not an owners. Housing is in short supply, REITs make billions of profit, homelessness is on the rise. And here your selling point is "get a new revenue stream from your tenants".

The solution of negligent owners shouldn't be renters paying more money for yet another middle man just to get their apartment fixed.