Emphasize that these extra steps would protect both the property and your investment. 

What we learned: We got lucky that we gained a lot of extra equity soon after we bought the house, which makes these repairs palatable. 

It seems like it basically up to you to do the math on how much more you will potentially make selling each unit individually and then deciding if that extra $$$ is worth the number of extra hours you will spend.

It seems too good to be truth for me.....  

The reality is many lower rate offers have a higher price or are $hit properties, but not all.If you are paying extra for owner financing make sure that the discount rate easily justifies the purchase price.  

But a bedroom or a bathroom can be easily qualified in terms of dollars (I usually see $4,000-$5,000 allotted for differences in bed/bath count).Truthfully, if I can't find easy comps and if I can't make it easy for the appraiser to agree with the value I'm looking for, I just don't buy it.

Get a side gig for extra cash flow, stop all extra spending and live like a monk. 

It's easy to obtain, costs very little, and doesn't require extra, on-going effort to maintain.

and there are so many extra things you still have to pay for after I payed the 27k, it is ridiculous.

Don’t be surprised if you find yourself downing a few extra coffees while sifting through properties, but hey, that’s part of the journey when you’re aiming for that next-level investment portfolio, right?