I researched commercial construction careers, and found a construction degree is typically required.

One of the biggest challenges of investing in Rustbelt cities is knowing where to invest and properly understanding the cooresponding pros & cons.Here's copy & paste advice we share to help to address this challenge:-------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a Class A property in Class D area, what quality of tenant will you get?

I’m not sure what sort of extensive “due diligence” you did but clearly you didn’t.

A true Portfolio program offers a 15% Down for any SFR or up to a 2-4 Unit Multifamily but requires proof of some sort of income.

We have much more robust capabilities in MLS that typically in most areas aren't available to the general public. 

Perhaps do a case study with a hypothetical deal you think is typical for what you are looking at and compare it to the alternative investments you might use and their expected returns.

If you hire a PM, they typically charge 15~25% of the gross.

In these instances typically the lender will pay it to protect their interests. 

Unlike conventional loans that typically require a 12 month seasoning period, DSCR loans have no such requirement, making it much easier for investors to scale their portfolios.I’ve included an article below that outlines how DSCR loans can be utilized in BRRRR strategies.Also, I noticed you’re based in Florida, I’m in Tampa.

Or are they performing some sort of arbitrage and they are not the end buyer.