My company has just grown organically - we've never advertised per se. 

The fact that your property manager only advertises on Zillow is worrisome.

Not everything in the course appealed to me (ie they had some turn key properties that didn’t look like they were as good as advertised). 

They advertise MLS Only memberships, but as memory serves, there is no requirement to join an MLS.  

So spend NO money on advertising and use that money to make our product stand out.. this has led us to raise our prices Far above our competition more than makes up for it and we sell them as fast as we can build them.. for us thats delivering 2.5 homes per month. 

.$14,990 was the cost of a brand new brick ranch home on May 1st 1960 - I have the original advertising from the builder in Ann Arbor.

This company works on false advertisement.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

I no longer use either Facebook or Craigslist for advertising my units.

I feel there is potential for it to be a good MTR if I advertise and take pictures properly.