@Jim Cran try contacting the Neighborhood Development Corp for the area that the house is in. http://www.clevelandnp.org/cleveland-cdcs/    They should be able to give you direction as far as working with Cleveland Building & Housing, financing and may even help champion your project along.  

We are happy to have you as a champion for the platform. 

I own and manage a small multi-family but I have never done a deal of this magnitude but would like to graduate to a higher league where I just put up the money and someone else does all the work.My question is, what is the due diligence one must do on a deal like this? 

I've found some good resources for prefab and modular spaces for both workshops and larger dwelling spaces. www.studioshed.com (I don't work for them or benefit financially, i'm just a fan) is the one i'm leaning toward as we have a nice sized yard, South Beacon Hill, with an independent alleyway for access and parking and we can get the build for $80k including kitchen and bathroom, all electrical components, doors/windows etc (I would have to put it all together or hire someone to do that) but not incl permits, site work, utility connections and foundations.I've been quoted in the range of $260-360K for a complete package with a design build service which is out of our league but the DADU' presented do look awesome. 

Then, as their investment funds grow, they can eventually move up to the Big Leagues and fund your deals!

(I'm way out of my tax league here!)

Tell him Will Long from the BTS real estate league referred you.

I think this house maybe was outta her league or something. 

Think of it as college, there are ivy league universities, private universities, state universities, and even community colleges at the county or city level.

I'm sure some of the champions of this strategy will be along to go into more detail about it for you shortly.Adam