This makes the similar sized duplex units look like a steal.One big problem is that the current owners of the old houses can't find a replacement home.My idea is to let them trade up into a duplex in their same neighborhood.  

The 50% guideline would give you about $575 in monthly profit - if you have to pay most of that towards the loan it could make things a little tight.Did you screen the tenants?

It is incredibly difficult to get good renters for a house of this size ... because the rent is high(er) and the utility bills are hard to handle.  

Also, on the iPhone 6 or 6 plus the keyboard grows to an abnormally large size (which normally means it's formatted for the 5).

.$150k cash once current rentals are soldLooking to build in an area where land is approx $450kAverage house size in this area is 3500sfAverage sale price of houses in this area is $500/SFI have a day job in the construction industry and would build this house in addition to my day job.  

1.AHH I see,it was so obvious that I missed it.2.I keep seeing that its considered unlicensed brokering/frowned upon and some have been called out on it,thats why I wasnt sure if it was even legal.3.Too late,I already own and live in a sfr(though your way was originally the plan,we were discouraged by lack of affordable,decent sized multies in my area and eventually bought a sfr)I kick myself EVERYDAY about that and its been since 2008!

Increasing my marketing efforts will result in the need for more everything but I will really need help screening callers.

They hate landlords and see them a turnip to squeeze, the neighborhood sized cities are like little fiefdoms, and many cities require landlords to pay expenses directly like trash and sewer. 

Home prices range from $40k for a 2/1 rancher that is vacant and needs full restoration to $400-$500k depending on size and location (some riverfront, no private docks).

Cash Flow, Income and Expense, Commercial Enhancements and various complex equity waterfalls and many factors requires reasoned professionals to "size" up.