I know that probably does not help you narrow it down but just remember if it was as easy as running a program to tell you where and what to invest in then the market would be in equilibrium and people like you and me would not make any money.

I've narrowed my search down to Detroit, MI or Greensboro, NC.

Try to narrow it down to your top 3-4.

Give a call to a local title company and they might be able to narrow that down for you.

Me and my partner, that lives in the Cleveland area, skip traced a list of houses we think are good candidates using PropStream + filters to narrow down our choices. 

Is there a way to narrow down the possible offending pipes without costing hundreds of dollars?

I’ve had a hard time finding duplexes in general outside the city limits, so I don’t want to narrow my search area too much.

Following the 2+ year old guides that some fantastic BP members have posted I am now in the process of narrowing down to a few select neighborhoods (currently looking at but not limited to University Heights / Cedar-Lee / Parma / Shaker Heights / Detroit-Shoreway / Lakewood to name a few) to find that sweet spot of relatively stable cash flow, decent tenant pool and potential for some appreciation.  

With that working premise I began to narrow my search to 4+ bedrooms, less than 20 years old and less than 1 mile from a university.

There are so many different ways to invest in real estate that it is important to figure out your niche or at least narrow down what you think you will like best.