from what I have experienced, like anything you get what you pay for, there are 3 factors with contractors, Fast, Reliable, and cheap,  pick 2,  you will go through these guys like water, then find one that seems good, till they flake,  my experience has been, they always want to get paid before the work is done, "to pay their guys" or something, but they rob peter to pay paul, and are always behind a job or 2, the economics generally doesn't work to hire the expensive reliable contractors, so you end up managing the projects,  I have a Painter/drywall guy, a Handyman, and Carpet guy, i do most of the technical stuff because I dont trust anyone to do it right (my personal issue) you can make the numbers work on higher end, properties, or mid/lower if you squeeze your margins. 

Real Estate Rewind Starting overhttp://www.biggerpockets.com/files/user/brandonatbp/file/real-estate-rewind-a-biggerpockets-community-bookGood Luck Paul 

Real Estate Rewind Starting overhttp://www.biggerpockets.com/files/user/brandonatbp/file/real-estate-rewind-a-biggerpockets-community-bookGood Luck Paul 

Real Estate Rewind Starting overhttp://www.biggerpockets.com/files/user/brandonatbp/file/real-estate-rewind-a-biggerpockets-community-bookGood Luck Paul 

Real Estate Rewind Starting overhttp://www.biggerpockets.com/files/user/brandonatbp/file/real-estate-rewind-a-biggerpockets-community-bookGood Luck Paul 

Paul area.

Paul

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Real Estate Rewind Starting overhttp://www.biggerpockets.com/files/user/brandonatbp/file/real-estate-rewind-a-biggerpockets-community-bookGood Luck Paul 

I agree with @Paul Gilo about the risk of adj rate mortgages.