I can consult on the work that can be completed in many different mediums (DIY, supported, etc).

Was that person me or another person as that sounds like something I have been telling people? 

They sound like a great company and their website is slick.  

Quote from @Anthony French: I’m relatively new to real estate development, having completed only one fix-and-flip project.

-EricThis sounds like a very wise imvestment.

It has been a huge point of concern for large investors as they want to hedge risk and co-living is a complete unknown. 

Now, moving forward he offered for us to take it over completely.

@Adam AeroI completely agree with @Sofia Komrskova about doing it to code. 

Even with a completed sale often times you might need/want to pay a lawyer to do a quiet title action to quell any possibly attempts to reverse the sale by an interested party.

Again, if your $250k is true, and includes all the electrical upgrades, new plumbing runs, potentially new foundation pour (since I assume the existing garage slab is not capable of supporting a new two story house), I am guessing since I don't know the market, but assume you will have a lot of equity by completing the project.