The LAND value portion is sometimes split out, and that may be accurate, if you account for possibly having to raze the structure and start from scratch.Another big risk with abandoned property is environmental contamination.  

I typically charge for a portion of a complete replacement depending on the age of the item damaged. 

I am struggling to input the Hard money lender portion into the BP calculator.

Under Chapter 13 bankruptcy (reorganization), a repayment plan as filed to pay off a portion, sometimes all, of the debt owed over a period of time. 

If you’re talking about keeping a very small portion of your portfolio crossed then I don’t think it matters as much.

What are the best ways to finance this portion?

Is the approval only to occupy a portion of the building?  

@Justin PolstonJust keep in mind, if you are going to peice meal a portfolio purchase, you will have seperate loan fees and closing cost for each transaction, with this many units it could eat up a siginificant portion of your profits.

The idea of the buy portion is buying the property at a big enough discount, which makes the original finance difficult and cost prohibitive.  

As such, you need to be paid for that work in ADDITION to your profit on the flip, not making that a portion of your flip profit.