But I figured it had to have at least an oil tank in the basement at some point.

Luckily I will be doing this on a full time basis and the many years of project management experience in Oil and gas Services contracting should be of some help.

Frank,I am a mechanical engineer myself and moved to Houston to work in oil and gas!

., any towns near the oil fields of western North Dakota can be risky...the region is heavily tied to the strength of the oil market which can be great when everything is going well, but can get ugly quickly when the oil market turns)? 

I'd like to get some a second opinion but I don't know where to start.We converted from oil to gas when we bought it in early 2015.

I thought for sure Calgary will crash with 2 oil prices crashes since 2008 – the market is now described as “soft”.

One of my concerns was the heating oil currently in the tank.

2) Are you engaged in the trade or business of professional fishing? 

Too many fish in the pond driving the prices up with people willing to buy places at a 4 or 5 cap.

It is useless.The 70% rule, or ANY generalization rule will not tell you how much rehab it needs, what location it is in, how long that buried oil tank has been leaking... undersgroundNOI said NO!