My main goal is make a healthy return (definition of health tbd) while providing affordable housing.  

In markets where land costs are low and freight traffic is high one can arbitrage the high value of truck parking against the low cost of land and minimal maintenance capex of this model, yielding healthy cash flow.  

AND.. now we are both self employed... with no health insurance.. bc despite being healthy it is more expensive than my mortgage payment on my house...

Largely limited to the Stock Market.I personally think that we need a good, healthy, correction to account for the bull market we've been in since 2009.

word of caution... if you going this route (lot of houses small cash flow) you're going to want to have outside cash flow and healthy reserves. 

Stay home stay safe and stay healthy! 

The banks and investors always factor around 5 % for vacancy, so even if you are 100% occupied you will still be viewed as having spme vacancyI think 5% is a reasonable figure for a healthy market.  

My research led me to Tula, Oklahoma with healthy major industries and development.I'm looking for single-family homes between $50,000 - $100,000 with three bedrooms and at least one and a half bathrooms.

By far the best measure of "health" is using %, because end of day were talking returns, and what matters in returns is what one is getting vs all the alternatives. 

The student rental market appears healthy but I'm not sure I want to play that game.