I'm leaning towards a cheaper “band aid” solution but the leak still needs to be repaired the right way to make sellable and have it covered in sellers disclosures.

Depending on location they can cost a lot to replace but when you factor in what you save from paying sewer bills it’s cheaper in long run.It would not stop me from buying a house

It has separate power (zoned commercial) and the rate I pay is cheaper than the main house. 

This will further hurt the "small guy", cheaper houses and units that already have to constantly compete on price. 

A simple classroom course or a book is a lot cheaper and more effective than a lesson of hard knocks after you've bought the wrong property at the wrong price in the wrong area.

Your target, from what you wrote, would be cheaper renters looking for a value stay that is clean, but unspectacular.If you market is saturated, you will keep going lower and lower in the algorithm which will indirectly restrict booking.

The cheaper rentals (eg <$1000/month) may need a fixed cost rather than a percentage of the rent-ie $100 a month or 8% which ever is more. 

The mid term is obviously much cheaper, probably closer to the 1700+- range, but the STR season would be profitable.

@Sunjeeve Weerasinghe we have moved entirly to vinyl plank in our properties (and so have a lot of major builders) as you can get commercial grade with 30+ year wear layers on them, they are water proof, do not chip (though they can be cut or torn) and are quite a bit cheaper than tile. 

Remember: cheaper doesn't mean you'll make more money.Start by going to www.narpm.org to search their directory of managers.