several issues: (1) obtain environmental monitoring data to see if current tanks are not leaking(2) how old are tanks. did the gas station replace older tanks?

It's a straight line (in the real world, data is messy), where it should be more of an exponential growth rate based on historical rates.3.

My main goal is ensuring positive cashflow than appreciation for now.

Obviously I ensure they get their capital back first and foremost. 2.

Once I have the data, I would make the decision whether or not to submit an offer.

@Dave Foster how did you pull that rent/own data? 

Whenever you are buying a property out of state you should do a few things to ensure it's as smooth as possible.Don't buy in the roughest neighborhood in the urban core.

Thank you Ronald Thats it i just want to ensure demand will stay consistent.

To ensure success you will definitely want to associate with like-minded people, people with experience and who are already doing what it is you want to do, and people who inspire you… not naysayers, negative people, nor critics.

Whenever you are buying a property out of state you should do a few things to ensure it's as smooth as possible.Don't buy in the roughest neighborhood in the urban core.