If it is moving and a hazard, like a stair or building collapse, that's the time you need to do something.

If the market collapses it will be a continuation of what you are trying to get away from.

And was given a notice of code violation by a city inspector, due to a complained filed by my tenant.This is what I am being adviced to repair:1) Door not lacking completely.2) Leacking on second floor ceiling(is mot a roof issue, it is a 3 story property)3) A collapsing fence ( not really collapsing)4) Peeling throught the dueling (wall paper in one bedroom is separating) 5) A kitchen countertop needs to be tighten,( a corner needs to be re screwed) 6) Roaches and mouse infestation,This issues were not communicated  to me by tenant, except the one about the fence,  in April, a contractor was hired to repair it but tenant cancelled the  appointment the night before and  when I tried again, in June, she disagreed due to her recent baby's delivery. 

Let's say they had a  second story plumbing leak that wasn't addressed by the former PM in a timely manner that caused the ceiling below to collapse.  

Soil Mechanics Lateral earth pressure Soil consolidation Effective and total stresses Bearing capacity Foundation settlement Slope stabilityStructural Mechanics Dead, live, wind, seismic, snow, rain, ice, impact loadsearth pressure and surcharge loadload combination and tributary areasBending, Shear , Axial Forcestorsion, buckling, fatigue, progressive collapse, thermal deformationCombined stresses Deflection Types of System: trusses, braces, and frames and its DOF (degrees of freedom)Types of Foundation: retaining walls, footings, slabs, mats, piers, piles, caissons, drilled shafts.. etc.

It seems San Diego, Orange county, southern CA area and parts of the western US is experiencing a number of commercial tenants collapse or near bankruptcy such Fresh and Easy, Sport Authority, Sport Chalet, Toys-R-US and more it's getting ugly for some commercial investors. 

Rush and it'll collapse pretty fast as soon as the first storm blows through. 

That was followed a year later by back to back sewer collapses at two of them.)Summary: Scale in a way that let's you sleep at night and (hopefully) still reach your goals.

Note, it will need to be properly filled in with the side walls being collapsed and dirt compacted, not simply throwing a bunch of dirt in the pool and calling it good.   

In 2017 we sold the last property in one partnership, and in 2018 expect to sell out another development and collapse another company.