I’ve got a lender who is a problem solver and loves geeking out on the minute details of these problems (it’s what makes her a great lender) and she could be a great resource for you...she’s put together condo conversion workshops with experts all talking about their components.

You should be able to find local builders that will finance the construction component of your new build, however! 

Although I know most sec 8 landlords use it because of the perception of guaranteed rents.As a small home builder I really dont know how they are going to lower the cost of new construction housing unless the govmit subsidizes it somehow.. basically the price of home components are very sticky they only go up. with the xception of lumber that will go  up and down through out the year..

It depends on the property.... is it value add where there's also a construction component or merely a management improvement opportunity?

Not as interested in how to paper a partnership agreement, really most interested in how others have successfully handled the alignment of interests component to business partnerships that span an entire portfolio.

If you do not have job or another sufficient source of stable, reliable income, then you'll need a coborrower with good income to be joint on the loan with you to bring the income component to the table.

I didn't even realize they had originally purchased the parcel I have the tax deed to until the heavy equipment showed up which made me look closer at deeds for sales in the area and discovered my parcel listed on the other property's deed.This is my first tax certificate/tax deed so I'm not sure what comes next.

Land cost is only a small component. 

It is standard practice and component level depreciation is encouraged by the IRS.Though it is very important to track you time as you go along.

I can see them becoming the Zillow of subleases when more owners discover them.