Turnkey is a great way to jump in immediately but it too requires research and proper due diligence.

As long as you're doing your best job and following proper ethics in your respective field, you should be fine and also have to realize that you can't control the actions people take and the way others run their show.

That will overwhelm investors and not give them the proper opportunity to make a well informed decision and you will hear “NO” a lot more.

I would also ask pointed questions regarding their financial and business history and see how they react to the questions.

Am I over reacting?

As a flipper, you will need to know a lot about managing jobs, proper construction techniques, permitting, inspections, building code, etc. 

Furthermore, the backyard of this house slopes down into a ravine; however, that can be fixed with fill dirt, retaining walls and the proper drainage systems.  

It would be easier to have a larger park with more income..If your thinking about it make sure you have the proper reserves or insurance.. and make sure you dont cheap on your due diligence on evaluating the well and septics and know the replacement costs including replacing the pumps.. and how frequent the well needs to be monitored to abide by EPA standards.. 

I'm in Detroit proper several times per week.

I would say, first see if the house was built with proper permits.