I like that the HELOC functioned more as a credit card, and I only had to pay for what I used, so I had 200K of equity on hand, but only had to pay the interest on 120K.

I've found that Rentometer either overestimates or underestimates the rent depending on the location and condition of the property (e.g a house with updated kitchen, bathrooms and flooring will have a higher rent than a house where everything is 15 to 20 years old but still functional). 

There is functionally enough space and parking.

The city's diverse economy, favorable tax environment, and high quality of life attract a steady stream of new residents, ensuring robust rental income and long-term growth potential.

The rest: hiring for acquisitions and dispositions roles, finding qualified and legitimate buyers, building a network in each market (inspectors, realtors, etc), having robust operations and processes in place, all while conducting an honest, reputable business with homeowners is very hard.

There is a robust community here in town though for STR/MTR - I highly recommend connecting with the meetups and the locals that are STR experts!

I think it's less a function of people just love the burb life and more that people are priced out of the city as much so they're looking for the "affordable" option ... and that's in the suburbs.And I do think there are still some under-asking properties out there, but anything that's taken care of, that's a remodel (but not an obvious crappy flip), is going quickly now. 

I know that is not always the case with functionality items for homes. 

The best I can offer is to tell you to verify that income carefully, and as @Brent Paul said, make sure that income is not about to be interrupted.Sometimes with CC debt, you do run across reasonably smart, stable, functional people with that much.

The kitchen is not about pure function any longer, it is a piece of art all on it's own.