If this is a single family, they are responsible for pest control.

If so then the chance of them defaulting on your seller finance terms is high and you’ll still be affected by the same problems with the property that exist now, you’ll just have much less control over it so your risk “being the bank” on this property is going to be high. 

The Left must resist the urge to “help” with short-sighted, counter-productive policies like rent control.

Then I(we) control everything.I know there are details to work out, and I am still in the thinking/planning phase, while I continue to save money, but is this a conceivable plan?

I'm not stating that it's inherently wrong, but aspects of it have gotten out of control.

A kitchen fire in the back unit got a little out of control and burned up to the roof.

Relying on someone who has their 'own team' to run your rental business is a severe lack of internal controls in my opinion.

Or any game that aims to reduce FICA.However, among other advantages, a partnership allows an even better control over your FICA taxes via guaranteed payments - a partnership's version of W2.  

Cameras showed it was the pest control person.  

I have clients that have these kinds of arrangements, and while it is easier when an org fills your units, you can lose control of maintenance and cleanliness.