Each person will have their own risk tolerance and it varies widely.

Prices and tenant quality are going to have a super wide range due to the level of blight from one neighborhood to another. 

We currently own a single-wide mobile home on an acre and a quarter of land and pay $850/mo in mortgage.

There are several ways to look at rental revenue at a multifamily property with the two most widely used metrics being the nominal monthly rental rate for a unit and the monthly $/sq ft. 

A rental built to lastCons for New:  Expensive ($60-$90k PLUS transport, set-up and probably perm foundation) payoff in 15-20 yrs, ~1.25% rule In what I am thinking, both new and old would require transport and set-up with rural utilities; existing properties come available from time to time but the market here is pretty tight; nice 10-15 year-old DW's on 2 ac+ routinely go for $125-$150+ around here.BTW:  There are no $20k single-wides on land that need $2000 to be rent-ready around here....Thoughts?

But the beaches are much more wide open and unspoiled... not that the beaches here are even slightly bad.

The major beneficiaries of QOZ's will be bigger commercial and multi-family investors.Overall though a 1031 will be much more convenient and widely used for the majority of residential investors.

This varies widely (from 5%-30%) but if it is packaged with the same person, you can save there.

If you are going to have the most updated house in the area, also not a place you want to be in to have a wide market looking at the property when it comes time to cash out. 

They all seem to run about 10% for the cost but the span of what is included in the price is wide.