If doesn't look good on a napkin I'd walk.

For example, a standard tee is harder to unclog versus a sanitary tee.  

For example, use a keypad to eliminate lockouts and lost keys; stock important supplies on-site and enlist your cleaning service to replenish as necessary (shampoo, soap, TP, napkins, etc.)3.

First, get exterminator in and go with him, Advise tenant to prep apartment per the exterminator's needs prior to the appointment.Take photo's of condition of apartment.Give tenant notice that the apartment is to be kept in clean and sanitary condition, and all garbage and trash is to be properly contained, and removed on regular basis.

I have an acquaintance who is a pretty big player in Chicago and his napkin math showed the ROI similar to yours but we didn't have much time to talk due to the flooding and all the help my neighbors needed.   

Tile counter is not the easiest to maintain and for sanitary reasons is not a great option for rentals.

The bottom line is that rules are just guidelines for back-of-the-napkin analysis.

Yesterday I had an opportunity present itself that looks pretty fair on the napkin.  

If you will accept a napkin that's fine with me.

. -$100 will be charged/deducted from your security deposit if damaged or removed-cars must be registered and in operable condition. cars may not be used for storage. management reserves the right to tow any cars not in compliance-management will pay for drain clearance once per year. tenants are responsible for any other clogs. management reserves the right to deduct this from the security deposit-if the unit is part of HUD(section 8) and the unit fails inspection for sanitary reasons, management reserves the right to hire a professional cleaner and deduct $200 from the security deposit.