@Phillip Tamez, I determine the mid-range rent utilizing comparable rentals in the area.  

If my offer is accepted we will do the rehab and market the house for rent starting at $750, no smoking, no pets( if renter insist on having a dog I will add $25 on top of base rent and a non-refundable pet deposit of $250)tenant pays all utilities and does yard maintenance.So, as of now I’m projected to net at $266.

Will that include utils?

I am trying to get as much exposure to this industry to find opportunity. 

So during the option period and i am collecting rents from both units, I'm pretty much a landlord because utilities will have to stay in my name because the duplex has one electrical service and heating boiler.  

They sell convenience in a service-based industry.

Know who to call check on utilities sewer etc. 

They do not look at hundreds to thousands of properties a week nationally, attend the trade shows, close the transactions, talk to the companies owning millions of sq ft of property to have a pulse on the industry.

Did they lose some kind of industry or is their crime?

DC police have a starting salary that is right about the median salary nationwide for the industry.