Hey @Jonathan Tran, I'm just a rookie so take this with a grain of salt.If property taxes are the biggest factor in your choice of farm area, there are better states to pick. 

Considering you're a contractor, what would you say is the biggest house killer on concrete houses?

One of my biggest mistakes when I started was working at a small brokerage where the commission split was high.

@D Turner, as the Cat said to Alice, "If you don't know where you are going, any road will get you there"One of the biggest challenges with real estate is that there are just so many ways to make money.

That is your biggest risk. what if the HVAC quits when he is not home?

At first my biggest internal struggle was how much do I want to put down (3.5% - 20% AHHH) and how much can I spend to get a positive cash flow once I move out and have full rental streams - I've come to the conclusion that it depends on the deal. 

What are the biggest considerations?

If the interest rate starts going up again, they would have an incentive to raise the due on sale clause.

One of my biggest concerns is the uncertainty of economy. 

There are state brownfield programs that may provide some financial incentives for redeveloping contaminated sites.