These plans call for six blocks, with buildings totaling 2.5 million mixed-use square feet, and a renovated 14.2 acres of open space with brand-new amenities and improved access.

For the 4 plex you are spending an extra 80k in renovations (I question your 110k renovation number to get to 4 units - this could be low but I don't know the square footage or layout).

In my personal opinion the seller should be aware of the market value of there home both before and after renovations and choose to sell to a wholesaler based on the convenience, timeline, inability to sell the house on the market, etc. 

Their home in Waldo was also a great deal a Duplex they found for $210K and now getting $1250 a door since it needed renovations.Some advice is be careful with what you by so that you are not paying top dollar or market price for a home that someone just renovated.

Two reasons could be renovations or the need to personally occupy the unit.

A mobile home for 10-12K will likely have to be bought off market and it probably needs to be fully gutted / renovated.

again, this tends to be the go to renovation for many.  

We completed renovated the small house and furnished it.

Also, doing your own research on newly renovated or constructed homes that have recently sold in the area on Zillow or similar websites can be a good first step as well. 

In todays market it's hard to scale when you need to put 20-25% down with renovation.