I did some volunteer work with Habitat for Humanity and they taught me how to do it.

The leads I hit today were all in a Habitat for Humanity neighborhood.

I've been doing Habitat For Humanity for a while now, and feel long-term involvement has been a great first step in learning how to rehab (It's also a good networking opportunity, some volunteers have decades of experience). 

The basic idea with MB is that when developers and government infrastructure projects etc. unavoidably must destroy natural "habitat," they must either restore it or else offset the damage by purchasing credits in certified mitigation banks to preserve multiple acres more of habitat than was taken out.

I noticed that Habitat for Humanity was building a ton of houses in the neighborhood.

Habitat for Humanity Re-Store ... it is hit and miss, but if you can find something that suits your needs there, you will not beat the price.

I was not familiar with this resource- it's great to see that they're a Habitat supporter as well!

(Obtained at Goodwill/Habitat outlets.

Give tenants rent discounts for keeping common areas clean, dumpsters monitored, etc instead of pros.Shop at Habitat for Humanity and CL for one-offs and buy remnants and in bulk at box-store sales.  

if they're good quality, and match the aesthetics, then it should not matter that you got them at a discount.i get a lot material from "habitat for humanity restore" because they often sell brand new stuff and a fraction of the cost.