@Tyrik Hasan Blocker, you need to use a bulk skip tracing service to do this for the most part. 

Would like to be able to tweak appreciation, interest/debt service, operating costs.

When banks stop lending to other banks, because they cannot determine with any level of confidence which assets on balance sheets are really worth something, and how much, OK that is not a cyclical market correction -- that is a broken market system.There was a time in late 2008 when some big names like CAT and Deere and Honda and Toyota and others like them were unable to obtain debt funding for their financial services captives for a period of several weeks. 

Profit has to be made in order for those products and services to continually be offered, improved and consumed. 

Those old homes had knob and tube wiring and smaller service panels that will not stand up to today's electronics usage.

Omg David..I’m on the floor.

If this is your first build, you need to think about level of finish on the Sheetrock, paint, lights, floors, underlayment, etc.

I also want to thank you for your service to this great country. 

You're paying for service and you're not getting it.

Then insulation, then drywall, then paint primer, then flooring, then cabinetry and interior doors, then base and case, then the balance of the finish work.