Whether is taking his "course", paying for the self written articles about his success or aka writing "puff pieces", buying fake Instagram followers, sitting on FB marketplace trying to get someone to pay for a house they don't know is condemnable and pay to have DJ remodel it and DJ never completing the remodel,  him spending an enormous time defending himself in small claims court, and threatening charges on  people that don't know law so they pay what he wants.All of those examples came from either my observation, experience, or other peoples reviews of him.The guy rented me a condemnable property.

Especially if your job involves knowing what to look for, you will be a great asset to people looking to invest and this should help raise private capitol.

What tactics would you use with your spouse to get him or her interested in sharing a too-big house with nice people you choose that you may not even see frequently in order to pay a very low monthly net rent and maximize the ROI on your primary residence rehab?

People are always fearful.

Currently you can find 1000sqft apartments in decent neighborhoods starting at $45k and homes starting at $60k , this is info i found online Bolivia is one of those places where people are still old school and you find the best deals by word of mouth.

So, keep in mind what a good tenant expects in your area.For example, if you have an existing GAS furnace and central air conditioning already a simple replacement of the gas furnace gets people what is likely to be an economical heat source while also providing a/c which many rentals don't have.

whereas most people do not respect utilities that they do not have to pay for the utility bill could get expensive in my opinion.

It’s hard to do for paycheck to paycheck people.  

I've seen lenders exempt years spent in college as "work history" but the borrower would still need to have sufficient funds/reserves and a solid credit score. 

As long as you are approaching people in a respectful way that you feel good about you can't help how people will respond sometimes.