The BP calculator said about 350 cash flow.

Bigger Pockets has a great rental property calculator as well as a fix and flipper calculator and book.

I have a great deal UC and my loan officer I believe is calculating DTI wrong.

I really like the rental property calculator...

If you are a pro member here at BP they have an airbnb calculator.

It all depends on your investment plan.There is a time point you can calculate that these two choices cost the same. 

The number of financed properties calculation includes:the number of one- to four-unit residential properties where the borrower is personally obligated on the mortgage(s), even if the monthly housing expense is excluded from the borrower’s DTI in accordance with B3-6-05, Monthly Debt Obligationsthe total number of properties financed, not to the number of mortgages on the property or the number of mortgages sold to Fannie Mae (a multiple unit property counts as one property, such as a two-unit); the borrower’s principal residence if it is financed; andthe cumulative total for all borrowers (though jointly financed properties are only counted once).

As Tim calculated, you can also adjust the vacancy rate for your project.

View report*This link comes directly from our calculators, based on information input by the member who posted.

The key is to do the calculation for the profit margin.Even though, IMO for a metro city like Chicago with a high population, the majority return is from using the leverage to increase the equity + appreciation.