On one of my rentals the seller paid for a home warranty when I purchased the place and during the remodel we found termites and it was $216 out the door instead of $1500 which was a pleasant surprise considering the circumstances.Bryan N.   

An auditor will show up on your door steps (can be your home) checking for password protected PC, locked file cabinets etc. the audit was a joke.

I replaced all his windows because we were upgrading the unit next door and I also offered to touch up the paint in his unit too.  

I suggest you make contacts simply by talking about what you might do, such as I'm interested in being a private lender, what do I need to do? Or

It is kind of interesting that if you have lots of less expensive properties it can be easier because you have more going on but still it seems like more work with more doors when the price point is lower.

No matter how much screening you do or rules you have in the rental agreement, your tenants can be a contributing factor.I'd rather improve a neighborhood with involved citizens, grant money, the support of the city, and relationships with other landlords than have it legislated.

Knock on doors, call owners directly, look for signs of distress, etc).

Loud, vicious barking dogs next door to the subject property.  

I don't think that I would want to live next door to my business partner if things got bad.  

No matter what you do or try to do, you will never be able to improve your neighbor's property.