I’m currently reading J Scott’s "Book onf Estimating Rehab Costs"It’s hard to block years of smoking odor and other nasty smellsTSP was used to wash the walls and ceilings first; it got the grime off, but the smell stayedOne coat of oil based Odor block paint may not be enough; I can’t really smell the smoke or smell anymore, but my wife’s super nose still can smell a slight odor.I know this isn’t a cash flow cow; but cash flow isn’t my key objective currently as I have a full time job that pays well.

A is solo, recent law school grad, no pets, no smoke - but makes $200 less than the 3x rent rule.B is solo, no smoke, makes plenty of $$ - but has 2 labradors (sometimes).

People can look years older than their age due to smoking and other poor environmental situations.

The biggest risk is not really from a physical damage, but more of a "pet smell" like smoking, that would cost you a new paint job or carpet (although a 80 lb lab could shred hardwood floors, to). 

The house actually is laid out where it can easily accommodate the 14, the halls are 4' wide, there are two stairways that are pretty open, the house has over 20 windows that open and are at a height so that someone could escape to the roof or onto the covered porch, ladders for throwing out a window, hard wired smoke detectors, etc.

She told me when she took over anyone who was the slightest troublemaker did not get their lease renewed.Anyone that SMOKED did not get their lease renewed.

Anyway, within a few minutes, smoke was pouring out and filled the air.

Check furnace filter, smoke and carbon monoxide detectors, and other mechanicals and do a quick walkthrough.

The lump sum is smoke and mirrors to get into a better property. 

Electrical, plumbing, HVAC, Termite Plates on the piers, wired fire alarms / smoke detectors, new breaker panel, arc fault breakers for all bedrooms and common areas, ground fault breakers for all wet areas ect.