Insurance also doesn’t protect you from misunderstandings, especially those made in writing and email.

Does running the numbers mean looking at the potential sale price, and comparing that to Monthly expensesWhat class of home it isWhat class of environment is the dealPotential cash flow Running those numbers, and seeing if it is a potentially good deal, or am I completely misunderstanding this concept?

Based on discussion with my realtor, the first-time buyer couldn't pull enough funds in the time frame and 2nd-time party backed out due to the misunderstanding of the foundation issue with the property.I've been provided the inspection report from previous parties.

I tried to clarify that in my second email but there is always a possibility for misunderstanding. 

I could be grossly misunderstanding this, but we're assuming that between all of the tenants on each floor that the total rent for that floor (unit?)

It also clears any misunderstanding about who pays what.When you have multiple tenants with different type of leases to deal with, you quickly realize that the more uniform your leases are, the easier is to manage your tenants.

@Dennis M.Sadly most people have such poor risk aversion especIally about somethIng new .Most people mis-understand risk. 

It was misunderstanding.

I'm sorry but the most likely scenario is you are misunderstanding something.

The best thing to do is work out all the details in writing before you get started so there are no hurt feelings or misunderstandings.