I think you are mostly correct but here are some examples I have of going the opposite direction:I was removing a load bearing wall.  

I truly believe the powers that be are trying to make the US into a renters nation. 

Again in CA folks coming in from Vietnam war would go out into the mountains of the state and federal forests and basically kill anything that moved and ate them..was  a real issue about wiped out the black bear population and in Wa. my brother in law worked for the road department and would find dogs that had been eaten it happens..

Thank youCREATING a note from the sale of rental property can be beneficial IF either of these two possibilities exist(1) you are able to obtain a significantly higher price on sale of the property by offering a seller financed note WITHOUT an undo increase in default risk(2) you are able to “wrap” an existing mortgage note bearing a low rate of interest with a seller financed note bearing a higher rate of interest. 

As far as I understand it, when the repairs, updates, holding costs, etc. take place have no bearing on anything.

Shouldn't everyone bear the cost burden of subsidized/lower rents? 

The liens start out at $5-6,000 dating anywhere from the 1970's to late 1990's, and usually bear interest at 10-14%.  

I'm new to the private lending space and am trying to get my bearings straight before talking to a legal experts. 

I’m a bear. 

so, you're trying to force the property to bear the cost of the HELOC - which it probably can't support by itself.