The general rule for landlord obligation is "safe and sanitary." 

Hi @Scott Price,Thank you for that thorough answer.Please entertain a hypothetical for me.Your FICO goes down 100 points because you purchased drugs on your credit card, missed a bunch of CC payments, and the financials you provide are written on a bar napkin.

I've used Loopnet and simple napkin calculations for small-multis, are you getting better numbers from another site?

Hi there it's tough I know first hand after you've had a few experiences then you put everything in writing even if it is on a napkin and give $10 to make it binding.

Maintenance, Repairs, Or Alterations: Lessee shall maintain the premises in a clean and sanitary manner including all equipment, appliances, furniture and furnishings therein, and shall surrender the same at termination thereof, in as good condition as received, normal wear and tear excepted.

My rough back-of-the-napkin math had you needing to be at $4,800 a month for one half the duplex and $2,000 a month for the studio to be cash flowing $1,800 a month and living for free, and that was before CAPEX/Repairs. 

A quick napkin test I use to pre-qualify opportunities before fully analyzing them or running them through any calculator is the 1% rule.

They require it here for sanitary purposes.  

I was thinking of explaining how I figure out my deals (napkin method), but I am thinking this is too much for them.

But that can get expensive.My lease says, “Tenant shall, at their own expense and at all times, maintain premises in a clean and sanitary manner…”For the next lease, I’ll probably add a separate section on outdoor maintenance.