This was a professional construction/demo company  hired by the Bank who did it.

Typically getting these "demo" type items out of the way on your own will save you money because you're not paying a skilled laborer to do relatively non-skilled work.

@Phillip (CJ) Yu @Aaron Yang did you guys do your cash out refis yet?

That said, with everything that you want to do for the home (ie. demo-ing the current stairs to put in a spiral staircase, and then turning the upstairs common space into another bedroom - assuming you'd add some drywall, and need to paint), I'm not sure that this is a project that can be kept under 15k -- but it all comes down to what you want to do.

You can think this to death, scenario it out the ying yang - but the longer you wait, the more likely someone else will come along who sees it as a get and acts. 

Second I would demo the non functional chimney as long as its cost effective.

I am demoing TenantCloud and Rentec right now.

Another huge expense for demo crews is carting the stuff they tear out.

That's the model match, the yin to your yang, whatever you want to call it.

I have seen a demo of DriveBuy REI which looked good, and I know Dealmachine has been mentioned on the BP podcasts.