I also suspect inflation will drive continued migration to lower cost of living / lower tax states.  

Quote from @Paul Lucenti: Creative methods tend to increase risk.

Especially for the cost.

This leads to home prices increasing at a fast pace so you're definitely on the right track of which markets to invest in.

Servicing costs are fixed, rates get higher lower the loan amount gets.

if there is appreciation, but you wouldn’t sell your current home tax free and buy a neighboring home to rent out, (There by raising your cost basis for additional depreciation and lower capital gains tax.) then it probably doesn’t make a good rental property. . 

In the next 4 years my income will drastically increase, but I don’t want to wait 4 years to buy another property that will be an investment.

But I’d also buy the $200 5 year warranty.My last/only stackable I bought last year was LG, the combined towers to try to reduce noise, increase ease of use, and presents higher end look.

Looking my insurance policy it mentions that I can opt for settlement under Actual Cash Value vs Replacement Cost. 

But, these broad market studies are so large, they are almost meaningless, in the real world.Between glut of new supply in many "hot" markets coming online, a continually softening economic outlook, inflation over last couple years making day to day items feel cost prohibitive, many average renters are strapped and seeking lower cost housing.