It smells like unclean people lived there and kept piles of dirty laundry (smells like BO but not "pure onion like" BO, like sick, unclean people BO).

So I would hold that up as evidence that a garbage disposal might not be purely evil.Good discussion.

Common sense would probably say that someone new to real estate would start off with an SFR and go from there, but I am very attracted to the efficiency of multi family… one deal, one roof, etcThis is purely hypothetical.

Are you talking purely cosmetic or does it also need electrical, HVAC or plumbing work?

That's pure passion.  

For a purely investment property, 15% down is the lowest I've seen for convenational loans. 

It's purely to find income property and if that rule works in an area that can still be considered good, with good tenants and minimal problems, then use it.However, in a market like Phoenix AZ, you won't get anything close to that anymore unless you want to rent to gang members.

That's also assume $100 of pure profit, per month from each door.$103,261 would be the max purchase price assuming no other repairs are necessary.$135K is too high for my liking.

I'm purely speculating here, since I don't know your area, neighborhood, or complex, but it may be related to the fact that you have "the nicest unit in the complex" and your unit is "the largest one in the complex, ... has the nicest view of downtown, and it is the ONLY unit in the complex with actual bedrooms."

Another 10% for vacancy is 33% total.I say that is pure baloney.If landlord pays utility (water etc.) you go by 60% total annual costs.