Hello everyone, I am reposting this here as I didn't get traction in the Contractors' Forum. 
I am trying to build an ADU/Granny Flat at the back of a property in Smyrna, GA. I have been in extensive communication wi...

And I've looked at an old map of the house that shows a small structure in that spot that I'm guessing was a small detached garage. 

Given all of the various obstacles I think that it is very unlikely that your plan will work, or at least not smoothly.

and i have been in the real estate finance business since 1995. i have owned a mortgage brokerage as well as a property management business. i have worked on wall street in sales as an investment consultant, but now i am here in alabama (by choice) but with no money. i am able to come across attractive deals, but often face huge obstacles when attempting to close with no dough!

With a two car detached garage.It’s a 5 minute walk to the beach and brand new everything, property is in perfect condition.Asking: $114,000Taxes:$2,350Rent:$600Rent:$800Tenants pay utilities.Mortgage would be around $600 with taxes and insurance and 25% down.That would leave me with a cushion of around $800 pay for vacancies repairs or other costs.

I bought a single family house with a detached apartment for $250,000.

The biggest obstacle in my mind is to try not to repeat your mistakes and learn from them.

My biggest obstacle is my wife,  she gets irritated when she sees me researching anything that would be considered entrepreneurial.  

The house does have a detached garage so I *could* explore renting that out separately for $100 - $150 mo.The numbers for the P/I on the BP calculator are $100 off so the chart is misleading, so my $6 cash flow will be morel like (-$94) and that's with me self managing.So my what are my possible exit strategies? 

Ever consider a garage apartment or similar detached rental maybe behind an elderly couple's house?