Washer and dryer is different because they are pretty standard.

Should I focus on teaching him the basics of personal finance, like saving and budgeting, or is there a way to introduce him to more advanced concepts like market analysis? 

If you don't provide the information that's fine, but it would be a transparent answer.There are hard money lenders who underwrite to DSCR standards with their own rules, and commercial loans with use DSCR in various  applications. 

Hey @Ben CochranBill Faeth from Build Short Term Rental Wealth has discussed this concept, which he calls “Return on Equity.”

Also, I really wanted the units to be up to my standard, but I think I spent more on them making them look better with upgrades, etc, than I needed to.

And by DSCR loan, I'm thinking standard 30-year DSCR loan.

Hard money and standard loans (Conv, DSCR) are unlikely to be available for deals under $75k.

Many property management companies likely have not caught on to the concept yet. 

If you have a good insurance broker, you should be able to use a more standard policy though.

I can certainly handle the bookings and standard service things, but the challenge right now is finding a cleaner who isn’t so expensive.