Given that you find a tenant that reliably pays $1200/mo, your NOI would be $871 less the debt service of $235/mo leaves a cashflow of $636/mo.Now, all this being said, there's a lot you've left out of your numbers.

They moved out in the middle of the night in month 11, leaving dog poop all over the carpeting.Part of it is probably laziness, part is probably not wanting to interact with the landlord, and part of it is that they don't have the skills to recognize what will become a bigger issue if left alone.  

Nicole left too, by the way.

Also left a note on the door saying I was interested in buying the house hoping a relative might find it and noticed that the mail was in someone else's name?

With the homes that are there and the balances left on the homes she sold I think you might be looking at about $30-40K of value there if you were to sell them.With that info what do you guys think?

Account ClosedI do more renting in that space than flipping.At sheriff sales, about 1/3 are postponed, and 1/3 are cancelled, leaving only 1/3 left at the actual auction. 

I think they left by the time I heard about it.  

She completely looked after the property and left it in excellent when she eventually left.  

One of the 4 tenants has less than 1 year left and there are two units currently vacant.What if somehow none of the tenants renew their leases and I'm stuck with this huge payment that I'll owe.

Perhaps we should set a goal to revisit our goals in five years to make sure we're still aligned.5.