Here's a bit more in detail about how rates are calculated for DSCR loans:1.

The metrics I'm primarily focused on are: rent appreciation rate, property appreciation rate, economic growth rate, unemployment rate on the macro level.

If they have a good interest rate it might be worth looking to see if you could assume their loan to take advantage of the lower rate.  

Navigating the Surge in Rental Application Fraud: A Guide for Landlords and Property ManagersIn recent years, the rental market has experienced a troubling rise in application fraud.

Your ability to turn around a property with an 11% cap rate is a pretty strong selling point.

I've heard Trump most signed an executive order to eliminate reduced rates for section 8.

Death Rate: The death rate has been gradually increasing.

I have a 2.5% interest rate on the balance of the mortgage. 

If you're willing and able, I do recommend the "house hacking" strategy which is just a fancy name for buying a rental property and living in one of the units, because you'll get very favorable financing - an owner-occupied fixed-rate 30-year mortgage.I'd also say, analyze that property as if you won't live there and it's a pure rental, and make sure the property is still cash flow positive if there's a tenant in your unit because then you'll know if it's actually a good investment.And when you analyze it, include payment of a property manager in your #s because if you don't, and doing so would make it go cash flow negative, then you've just bought yourself a job because you literally can't step away from managing it without losing money.

We're going to see insurance rates climb for quite a while.