While doing back of the napkin due diligence what is a standout factor that will immediately turn you away from analyzing the deal any further?

I invested in a property in property in San Diego in 2015, whose numbers were indicating it was going to be cashflow negative by a couple hundred dollars per month. I was a little surprised at the near universal advic...

Investment Info:

Small multi-family (2-4 units) buy & hold investment in Pittsburgh.

Purchase price: $91,200

Cash invested: $70,500

The nightmare scenario they warned me about on the BP forums!
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This may be the strangest thing I have ever encountered in my time as a landlord. Here's a little background info: This property is managed by my property manager. It is rented at the highest amount it ever has been. ...