I agree your numbers do look conservative, I might be missing something but I dont see any amount budgeted for maintenance and capex.

Based on your last post, it appears you don't have a maintenance tech budgeted.  

If it's a $30k duplex with 1br per side that rents for $300 apiece, the maintenance/capex/turnover will overwhelm any long term cash flow you'd anticipate.  

,I think you actually have negative cash flow for this property because there are other considerations besides just the mortgage payment and the taxes (insurance, vacancy, maintenance, capital expenditures, etc). 

Over the past 3 months, the building and unit has been one maintenance issue after the next after the next and it was clear the landlord was selling.  

You know the routine.  

Utilities, age, maintenance.

This leaves you with an unlimited amount of houses you can buy, and an unlimited amount of cash flow each month.Refinanced at 70% the property should cash flow at about 250 each month after PMI, maintenance, management and long term repair cost. 

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@Megan FaustmanHey Megan,When you say you're cash flowing $300 on your Oak Park property, is that $300 above PITI, or does that also take into account maintenance and vacancy?