This is clearly jurisdiction dependent, but simple things like changing out a rusted/rotting door can become a long process if you are pulling permits.  

Eventually the severance is going to dry out and some landlords would like to liquidate to get their cash out.I see that you're from Hinton AB - Nice spot, (I am there around 3 times a year for work) :)Ram

I'm basically doing tax prep all year keeping receipts, records, like the rest of us.I try to do a dry run of taxes before year end and get my deductions for expenses organized and look over profit margins.December is CRUNCH month and I try and see if paying insurance or seasonal maintenance for the upcoming year will make a difference on expenses before year ends if I choose to pay it early. 

I also go and start towels in a couple of units when we have multiple turnovers, they are the longest to dry. 

Paint where necessaryRoof 1500PatchFascia and Soffit 2500Salvage what can be salvaged, replaced everything that is rotted out, paintFoundation 15000Pier and beam to tolerance.

Every other window has some issue, one needs to be restrung, one has a cracked pane, a few show signs of rot, all but one is missing a screen and, because they are single pane, they are definitely not energy efficient. 

The opposite seems to be true in the other directions.Again, not saying it's cut and dry, but it somewhat seems to be the case.

The window wrapping provides a neat exterior look, but it only really serves to hide major wood rot of the frame from the outside.

I'm not talking about investors (who are running a business & are aware of, or should be, the risks involved), but for the average person buying a home for their family, there is no way they are going to know there is termite damage, or wood rot, or mold, etc., hiding behind the fresh coat of paint...or water damage, or faulty & dangerous electrical work, or disastrous plumbing, etc...there is no way they are going to know any of this with out the benefit of a professional inspection, and agents (BOTH buyers & sellers agents) actively encouraging this type of behavior, seems unethical. 

Unless they have failed in some way (broken glass, rotted frames, etc.) it's almost never worth replacing them.