Depending on what metrics you're looking for, I can maybe help point you in a good direction!

Virtually every Wake county zip code has too much product (house) variance to put any credibility in zip code metrics.

So as you acquire properties, you also acquire income at a pace that should be similar to your debt acquisition.So, if you acquire debt and income in similar proportions over time, the DTI metric shouldn't move against you.

Most importantly, learn all you can about the key metrics that are used to measure success in TK investments (ROI, lease terms, maintenance rate, occupancy rate, turnover, etc.), what they mean and how they are calculated.

Although I understand the loan is primarily based on the asset metrics, I also heard they prefer experienced investors (which I am if they'll look at my Canadian experience)

What are the key metrics and measurements that I should be using in my analysis to determine my 'go or no-go' decision on performing a remodel?

As @John Warren mentioned, a recession would suggest a potential for lower vacancy in apartments and rental homes (due to the high demand) but the metrics that really matter are how long the tenants stay, and what it cost to get them.  

What are some favorite metrics/benchmarks in the long run -- long term buy and holds with fixed loans and no mid range thoughts of selling , re-financing etc.?

Still had a good year last year.This year it's a perfect storm with low interest rates, 1031 delayed properties now have sold and they are buying replacement, my business grows naturally year over year without these other metrics, Biden trying to go after 1031 has investors worried and making moves now just in case.For me I am buying value add reposition properties.My clients tend to buy the jewelry box properties with credit tenants and long term leases.

What are some questions you wish you asked, metrics you wish you took into consideration, etc.