Rent control is the biggest PITA, for sure. 

Starting with the cons, the biggest risk is losing your home if your investment somehow goes totally awry and you cannot afford the monthly payments on the HELOC.

That $3000 is not a "deposit" or "fee" for the loan.Probably the biggest misconception of DHM is that we charge an "upfront fee" If you have a property under contract you can fill out a loan application on our site and we can review it with you to see whether or not both parties feel like it is a deal worth pursuing.

All four have new kitchens, bathrooms, floors, paint, trim and lighting. https://www.flickr.com/photos/32911628@N08/39497288035https://www.flickr.com/photos/32911628@N08/39497287455The biggest extra expense was extensive frozen pipe work.

What is the biggest issue to avoid through this entire process?

Buyers biggest hurdle will be finding a place to legally set the home.

The biggest thing I look for is population growth and the most up-to-date data that I have found is on the US Census Bureau website.

Hurdlr - It's pretty great so far, not having an actual web site to analyze your data is probably biggest complaint, which they are planning for down the road.  

@Torey Chumbley Just look at where your money is going to give you the biggest return.

@Michael Gambacorta This is a very common problem and probably the single biggest challenge for out of state investors.