:)The only beef I have with your post is that you are already assuming their is going to be beef between tenants and you are going to have to play peace maker.

The engineer is giving you peace of mind that it does not need to happen immediately.

Being able to drive by your properties frequently to see them in person (even if you have a property manager) can provide consistent peace of mind. 

Here are some quick stats to consider:Tangible Asset: Real estate is a physical asset you can see and touch, which can provide peace of mind.Cash Flow: About 33% of homeowners rent out their properties, generating consistent income through rent.Appreciation: Real estate appreciates by about 3-5% per year, while the stock market averages around 10% but with more volatility.Tax Benefits: Investors enjoy deductions on mortgage interest, property taxes, and depreciation.Control: You can actively manage and improve your property to increase its value.Just take it step by step, and you might find real estate is less risky than it seems.

I wanted him to move into the unit he starts rehab today and rehab it when he moved back home but he is non committal because he has not decided between peace corps, teaching English in Europe, continuing his education in Europe, or RE.  

I’ll bet if Peace has a forum there’s people talking about BP and being negative “what they’re teaching takes so long!!”

It's essential to prioritize their comfort and peace of mind during the transition.● Management Company Challenges.

They always lacked something and I will never have peace of mind. 

All that said, and to answer your question, I think a guaranteed check for 66% of the rent offers some peace of mind and limits potential loss. 

Peace and good luck!