I inquired about their software a while back and they e-mail me and call me all the time, even though I have told them numerous times that I am not interested.

I've tried once via phone calls and snail mail, but the woman never got back to me.

Investors can buy in for the price of a single-family home or a single share of stock.But the plunge in U.S. home prices in the financial crisis should be a fresh reminder that bets on housing can sour in a hurry.The latest deals often don't depend on home values going up, which sets them apart from the house-flipping strategies that cost many home buyers dearly when the market collapsed.

Brandon is a meth addict who continues to message us asking for his mail (even though we have expressed multiple times to him that we no longer get his mail because we took his name off the residence list).

Kind of reminds me of ICFs, like someone else already mentioned. 

We take care of it, and remind them to let us know if  there are any issues.We have SFH's and have tenants that have been renting from us for at least a few years. 

Now, I am terrified of checking the mail for fear that there's some other screw up thanks to some moron lender, some idiot insurance agent or some half-wit real estate agent.

My PM has sent a notice to the tenant via certified mail informing them of the upcoming inspection.

Maybe try some direct mail?

Take those lists and find a way to reach out to the homeowners whether it be direct mail marketing, or cold calls.