And make sure they understand to NEVER pour cooking oil/grease down the kitchen sink or the toilet. 

I imagine with only two months left on the lease you weren't depending on him staying anyway.

I am self-employed, so I can imagine this will continue to manifest itself!

But I imagine any decent size metro will have a management company who could do it around 10-12% all-in management cost. 

I would imagine you would be able to profit several times the dollar amount with about the same amount of work especially if you are hiring out all or most of the work.

You will come out of it wil plenty of expertise in the details of renovating 100-year-old properties, but this is NOT passive investing by any stretch of the imagination, even if you somehow do manage to turn this place into a profitable investment while relying on the tender mercies of hired help. 

Hello,Since I live in a more expensive market, for doing lease options I would imagine I would need to target professionals such as doctors, lawyers, small business owners, management people, who either have issues with credit or are just getting started in their respective careers and little credit history.

Imagine being an auction company and offering damages to buyers when a seller can't close because they didn't calculate properly or foresee additional lien payoffs.

The numbers work but if it’s a war zone I can’t imagine many people have 1000$ a month to rent one side of your duplex are you sure you can command rents that high on an apartment? 

As you can imagine, it adds up.