If done right, it can be both profitable and a competitive edge in the market place keeping cost down.

I use more than one sub for each trade therefore they know there is some competition and it keeps both their prices and schedules in check.

In something like this I think you need to look at the competition - good and bad. 

But this now is also being direct in competition with Russia.

Its housing but very different than real estate.The myths and misconceptions have kept competition out of this market.

Someone recently told me about Habitat for Humanity Stores where they sell donated building materials for a fraction of the cost.

Are you saying you'd like to buy a turnkey property from a flipper before it hits the open market in hopes that you will get a discount or first crack to minimize open market competition (that will likely work in the flipper's favor today)? 

My multifamily is on a street with only other multifamilies, so we are exposed to competition every time there's any 'for rent' signs.

Believe it or not, I try to network and become friends with my competition.

The market is pretty competitive here and it's not cheap unless you want to dig into the "less desirable" areas but there are deals to be had.