Currently, I got the AC Unit and duct worked replaced utilizing Ygrene which is a energy efficient home improvement platform that gives you the money up front to pay for a home improvement project and in turn the home owner pays back the loan off a period of time thru their property taxes.

A crawl space with disconnected ductwork, mold growing on floor joists, leaking pipes, etc.

You won't have to do ductwork.

The thought with mini-splits is it would allow me to lower my expenses, and keep the renovations more or less isolated so I'm not having to redo plumbing or ductwork etc etc to other units that are currently occupied. 

You may also want to clean your ductwork. 

Estimating around $30,000 rehab.Cash to close- $6,055.77Earnest Deposit- $2,500Scope of work:Currently OnHVAC- Heating Air and duct work $14000Gutters, Facia, Soffets- 5,000-6,000To DoNew doorsNew windowsGarage doorKitchenflooring and refinishing hardwoodRepainting (Indoor and Outdoor)Remodel Bathroomstrim What made you interested in investing in this type of deal?

It's easier to run 240v wiring than tearing into walls to run new duct work for forced air furnaces. 

I'm talking new roof, new HVAC and duct work, new electrical panel, new paint, new PVC & PEX piping throughout the house, new doors, some new windows, landscaping and gravel is all fresh, new plastic in the crawl space, new outlets and switches throughout ... new garage door, roof, and paint on the single detached garage which matches the house. 

The same HVAC Tech did a bid on a rehab and told me it would be $10,000 to install a new 3 ton outdoor unit, indoor unit, gas furnace and duct work.

We are switching out electric baseboards for electric wall fan heaters in those units that don't have natural gas and/or do not have ductwork.