One more tip – people remember stories that trigger their emotions.

Don't let emotions and stress ruin a great investment :)

Try to keep all communication in writing so emotions are not involved.

In general, I reckon that if you get EMOTIONALLY attached to a SF primary you want to buy, you WILL spend more on it than is financially optimal, and it WILL hurt your Debt To Income ratio and therefore slow down your ability to buy more bargain multi-plexes at whim.Will your extra retirement income wish, vs your pretty-home desire, be easy to resolve? 

PTSD does NOT require a service dog, but maybe an emotional support PET.

The guys wife seems to be more emotionally stable, because he keep emailing me accusation after accusation saying I'm volatile, have a bad attitude and am defensive, etc. 

Check out Emotional Support Animals & Waivers of "No Pet" Policies: What Does the Law Say?

Greg is dedicated to his client's needs and emotions, leading them confidently in finding the best investment opportunities.

This is a tennat you must get rid of asap.If you have issues with emotions in dealing with tenants you should consider hiring a PM.

Look for reasons NOT to purchase and no emotion in the purchase.