It seems like that is a more common way to do these kinds of deals, but is it the best way?

As a common man , flipping for us will not be from wholesalers or auctions.

For me its not a deal, the return is very low and you have no value add opportunity.separating the utilities is costly, and often you can just pass these usage to tenants on top of the rent.And its on Septic.

Is there other information other than the price, location, taxes, and utilities estimations?

Ive read on here that some landlords calculated the sq footage or price per person and split the utility between the units that way. 

I mean they might not like being a landlord.. many try it many don't like it after a while.. even though to a man or women when they start the common statement is I will never sell I am long term..

They could have taken care of the property and maintained it so it didn't need to sell to an investor, they could have handled their affairs more responsibly to not need to sell the home, they could of done many things we view as common sense but they didn't and they have their reasons why. 

We spent 30k on the project and now its renting for 1200 per month which covers our mortgage and some of our utilities!

Not familiar with Iron Mountain, but sounds like you've found your niche markets...Outside of financing, what other "ducks in a row" do you commonly see overlooked?

(oh 2 of these kids are teenagers) in a one bedroomAnyway I wonder if others have had a lot of declines post offer and the most common or most interesting reasons.