Say something like, I bought a house last year from Joe Jackson over on Oak street a couple blocks away?

and you already have copies of the leases, I would:-make sure you get adjustment at closing for full partial month's rent from seller (it doesn't matter if tenants are on time, seller owes buyer rent due buyer for stub of month, unless you close on the last day of the month)-give all tenants a 'hello, I'm the new landlord' letter - note where to send payment and what the payment terms are ("according to your lease, your rent of $xxx is due each month on the first; if payment is not received by the xth a late fee of y will apply")-pursue nonpayment eviction against anyone who doesn't pay on time.  

I can send letters to those property owners.Do you have some special insight that you could put to work? 

So I am just over 1% right now (could get a few more calls next week of course)But this letter was a hand written envelope, typed up letter, hand stamped, and hand signed.

They wrote us a letter several months ago to explain why they fell behind and that they plan to start making their payments every month.

How do I block the site? 

I was paying for separate liability insurance in blocks of 5 homes per policy.

Keep going and maybe send out letters to absentee owners.

Try googling or calling the number with caller id blocking and verify that at least.I once had someone threaten over text that I was discriminating and that their lawyer was gonna call me (I said I wouldn't show them the unit due to credit score to low and pet bird).

If the other buildings on my block are all PM managed at let's say, $800/mo...and they're charging 10%, why not discount my rent a little and have my pick of tenants, plus, they know what the other bldgs are charging, what few vacancies I have are often filled by neighboring bldgs...