This same tenant who has called the police on this trouble tenant once keeps telling me once a month at least that he tries to stay away from this person but this guy is mentally sick and keeps yelling at him for no reason or keeps hearing him shouting alone in his room.

If you could only improve your returns to 20%, that would boost your monthly cashflow to $5,300 per month. 

Just observe, take a lot of mental notes, and let your broker do the talking.

I'm closing in on 200 rentals and am happy to help get you past that 1st mental hurdle. 

They need to screen out those who are mentally off the rails crazy acting, and put them in asylums where they can be cared for properly.Pee test30 days out, then once a week for 4 weeks.

Use the mental training & conditioning you received in the Military and investing will be no sweat.

Welcome to BP @Pamela Tirado  You will find plenty of resources and even get a boost of courage from this forum.

I must say, though, the generous & encouraging atmosphere here on BP is boosting my confidence.  

Understand her mentality in broad terms to be able to tell if she's able to come around (objectivity is crucial here). 

We've been helping our clients boost their credit scores to qualify by home mortgages, getting into rentals, and having the ability to purchase a vehicle.