I think my biggest challenge was the fear of F***ing up. 

More specifically, a tenant who was out of town, sent me a screenshot of a snapchat (social media for those of us who aren't familiar with snapchat) of fire trucks and ambulances asking if I was aware of what was going on and that she was fearful that the 4-Plex had caught on fire and burned to the ground.

Thanks @Alex Deacon and @Brie Schmidt  - I've taken your advise and contacted an attorney, the contract is very clear but I fear we will need legal support to enforce it. 

Gaining knowledge helps to take some of the fear out of the decision making. 

It does serve to keep some tire kickers away and is more prevalent in investment properties. 

The fear is today the homes are way too high and if the market slows down the margin can be disappointing.

Stop living in fear, it gets better I promise, just make sure you run your numbers right.

It may not work for everyone but it has changed my life, just try it.Also on a side note, the more knowledge you have, the less fear will be present.

I guess that is my fear...and not sure how people get over this risky hurdle?  

Checking the unit every 2 weeks will only compound your fears.