Basically, the further you get away from the city the more potential for cashflow, but you're also dealing with a different tenant base that may be tougher to manage.

It can be done for new build but not rehab since all rehabs are different. 

The rates vary throughout the State because of the different millage rates and tax districts, but in Richland County for instance, the taxes essentially triple once it goes from legal resident to non legal residence. 

I believe I can do this with the upstairs rented out at $1,650 a month and $1,750 for the main floor unit. 3bed 2bath down and 3bed 1bath up.

This matters as different auctions are prone to different title issues.

We have several different people lined up to clean ours depending on time of day and how much lead time we have.

There are two main factors that you can use to track gentrification, so why can't they be used to track the reverse?

Duplex have different zoning that may permit additional units.

A friend and I created one recently:https://drive.google.com/file/...It was meant to compare costs between different lenders, but you can use it to just see costs from one lender as well.

If it's the difference between $1800 and $2200 but you have to cover utilities too, not worth it.