I find it hard to imagine that tenants in Puerto Rico routinely have so much cash on hand.

., it is a matter of routine inspections to discover if they are complying.

Enter the house for a routine inspection (with proper notice) and say look for ANYTHING.

There’s no research at present proving that routine duct cleaning improves the air quality or reduces dust in your home.

That sounds like too much for me to spend right now.In addition, there is a clause in the tenant lease which states "Tenant shall conduct routine landscaping of the Premises, including regular mowing of the grass, removal of leaves and small fallen branches, regular removal of all weeds and grasses in landscaped areas and trimming of plantings, including shrubs, unless otherwise provided by the Owner or a third party such as a homeowners association."

Weekend service calls cost more money, so I try to delay until the week days without creating an uncomfortable situation for my tenant.

It takes me 30 minutes to get him out of here, and all he has to do is see if there are leaks, change a filter and get me to sign the paper and out the door.It's really uncomfortable and awkward.  

BTW, I routinely have county officials tell me that their placed applicants "easily" meet the payment qualifications for our efficiency apartments. $525 rent, $733 SSI payment.

Same, I can get over the money (though I would love to have it) but I can’t get over the idea of him thinking this is something he can just routinely do to landlords

We had one place with horribly uncomfortable furniture, empty bottles of soap/shampoo, uselessly thin toilet paper, and a million inane house rules.