*  the basement is completely empty except for mechanicals and w/d in one area.  

Is there a specific mechanism that is needed to show a groupings?  

The three talents stand for Mechanic,  Mindreader and Magician (in that order)

Auto loans, not so much, in that there's a relief mechanism (bankruptcy & default).

I was personally more shocked at the size of the rebate than the mechanics of it.

@Brett Holton and @Mike Roy, I agree better to be more conservative, and have already adjusted some of the numbers on my actual spreadsheet@Ben Wiley, I worked and still work a full time job as a mechanical engineer.

I've done it on stuff I own and it's freakin' expensive - new kitchens, new bathrooms, new windows, siding, flooring, mechanicals, roofs, plumbing, electrical, decks/patios, fencing ... add it all up with an expected useful life and it easily comes out to $200-300/door/m on small multis.  

Search for any mechanic's lien??

So, there's no mechanism to sell your "Ebay" or "Tesla" stock and roll it into a house.If the shares were held in a 401K, you could take a loan against that to use as a down payment.

@William Horsey Mechanical code allows for the use of drywall cavities to move air as long as certain parameters are followed.1) They cannot be used for supply air2) They cannot be part of a fire resistance rated assembly3) They cannot convey air from more than one floor level4) They have to be isolated from adjacent concealed spaces by fireblocking5) They cannot be used in exterior wallsIn addition, there must be a direct, sealed connection to the furnace.