WEalthy relatives give you a stake   IE cash infusion for sweetheart terms.3.

My network could use the people infusion. 

Assuming the as is (appraised) value of the land is equal to the amount of equity a 3rd party lender would require to advance a construction loan and a permanent loan, the JV (and or you) would not need to come up with any cash since the land value would cover the JV's need to satisfy the lender's demand for an equity infusion. 

- The Seller wanted to sell but after finding out that they would get a huge tax bill is now willing to do a MLO but they also need a big cash infusion.

You aren't going to find lenders willing to let the seller take a 2nd for the "equity infusion" (bank's term...not mine) in this lending environment.You should study subject-to purchasing techniques.

I have acquired a house with screw in fuses.  

Seeing how these porcelain (infused with plastic} planks are installed, I don't see how the floor could be waterproof, as it seems moisture could easily slip through the crack between the tiles.

If the panel had circuit breakers rather than screw in fuses, you might be able to consider that some of the wire could be left in place.

It's moderately rough, (mostly a stupid layout of bedroom, bath and kitchen) but I'm estimating an infusion of ~$40-$45K will make it an attractive rental (~$1,250) with an estimated value based on adjacent properties of $100K-110K.

I would love to flip this house for cash infusion to pay off some of the loan on my rental side