Let alone the chances of ending up successful. 

If you're in Northern MN, there is a very good chance that the cost to build a new duplex exceeds the resale value, which would be an awful idea to build a new one. 

Do the math and you'll see it doesn't make sense.The best way to invest: increase earnings, reduce expenses, and save.

If you spend time learning how to manage well, your income will increase, you'll save time, and you'll maintain your sanity with the courage to expand.

Chances are it will never get keypunched.  

There's a good chance the issue(s) you face has already been discussed and answered.Ask questions in the appropriate forum.

They say that their customers see a 30% increase in revenue but they don't make any guarantees.   

The only two ways to rectify this are (1) purchase the property far below market price or (2) significantly increase the property net income usually through some method of “repositioning”. 

Take a look at sold comparabale sales over the last 12-24 months and identify what you can do to add value to a home using renovations to increase the subject properties ARV as fast as possible.

Let the agent know that while you’re interested, the property’s condition and local comps don’t justify the asking price.Taking a warm, conversational approach can make negotiations smoother and improve your chances of getting the deal.