I've made plenty of bad buys earlier in my career, but if you can hang on to them long enough they will eventually be worth something most of the time, like that condo.There is a sweet spot for lipstick flips into AirBnb rentals in areas where AirBnb is advantageous or seasonal.

putting 7% down 93% leverage letting the bank take all the risk is sweet.  

I'm in the same boat, currently working on the road as a safety engineer living off of that sweet sweet per diem in construction..

By this time you're 20, you probably have at least 30K in the bank, you own a home, you live for free, you're a business owner, you have your real estate license, you just bought a sweet truck for work, and you have no debt.

C) Equipment: Buy more/bigger/faster washing & drying unitsMix and match till you hit the sweet spot that works for you.

Peoples have different degrees of risk tolerance so there is no best way to go about doing things, just find a sweet spot as far as risk/reward that works well for you and your investing goals.Some people choose to sell their properties after awhile to buy new properties (hopefully at below market value) and thus earn instant equity by buying correctly, and it also resets their leverage back to a higher amount thus amplifying their gains. 

For example right now I’m checking the neighborhood around Five Palms Dr and Sweet Maiden St. in the 78242 zip code of San Antonio, and it doesn’t show any units for rent.

When the lender at Griffin does answer they are nice and sweet  but I think it would be better if they answered the phone consistently and got the job done.

Along the lines of what @Eddie T. alluded to, the "sweet spot" would be if you can find property for $40-45k that rents out for $8-900/m.

We find that C+ to B class neighborhoods are the sweet spot.