basically that number is derived from the remaining cash you will have after you pay all your expenses and mortgage debt divided by the amount you put in.

Now if that passive income is not there and he is paying off a car with income derived from RE commissions, flips or a day job I would feel much different. 

I might be on to something :-)I’m just curious about what would be involved in developing the site—things like environmental impact studies, human-derived biohazard containment, storm water management, below grade engineering studies and stuff like that.

Let's take a look at the definition of passive income.Investopedia's definition of passive income is "Earnings an individual derives from a rental property, limited partnership or other enterprise in which he or she is not materially involved."

The first public information is derived from the first NOD (Notice of Default) from the lender to the homeowner.

Not bad.What is the current occupancy, is 100% of the income derived from rents, are tenants responsible for any utilities, where is the complex, what is the current condition of the property, the age, the class, are rents currently at or below market?

If you follow the simple premise of the 50% rule and assume $100 of true cash flow, per month, per door, there's really no limit to how much profit can be derived from multi-family properties.

And without knowledge of how the new scores are derived, it's unlikely you - or anybody - can game the system this time (at least for now, since there are smart people here who will eventually figure out what activity has bigger impact on the score).Having worked at places where there were scoring models for performance evaluations, I can say that some people figure out how to take advantage without performing.  

That won't necessarily reflect in your property as its value is derived from the rents it generates.

I'm normally willing to buy a $200K house for far less than a 20% or $40K profit.Keep in mind that the 70% formula or its derivatives only works if you are trying to resell to a rehab to retailer.