See below...I plan to go and investigate further tomorrow.I was wondering if anybody could give me an idea of costs (ball park) in order to get it finished, in order to see if this is worth persuing.By the way, I am aware this is a very vaguequestion and amongst other items... permits / architect drawings would need to be submitted.It's about 2,200 sq ft and finishes would be mid grade.

If yes: Even if the rent is the same amount as their previous payment, reach out to them as an advocate for their situation to investigate how/why/when they fell behind.

We don't believe there was a leak because 1) our own investigation--including digging to the pipeline--never found anything; and 2) the pipes are only one feet underground, so if 523K gallons of water was coming out somewhere, we think we would've seen a pool of water or some wetness somewhere on the property (there was never any wetness).My research has determined that it's possible the pipes had air in them and that the meter was reading that.

They are under investigation for creating 3.5 million fake accounts for people and charging them fees.You can do a 15 year fixed and pay off principal when you have extra funds.

I'm not saying the numbers make sense, it would definitely be something you have to investigate, but there is always a way.  

I involved the village and they sent out an inspector to investigate but the tenant never let the inspector in and just last weekend sent me a notice that they will be moving out at the end of April.

Certainly worth investigating the implications of a 1031 exchange, I reckon.

If they meet your Cash Flow criteria, then, investigate further.  

But the architect should be able to answer these questions for you with some preliminary investigation.

We are also currently investigating owner financing, but wondering if anyone had encountered this before and came up with a creative solution.