Also, I am stashing away $4,000 in savings each month in preparation for opportunities and safety at the moment.  

There are some good iron/steel companies too, but if the supports have rusted and safety or stability is an issue, I would take the time to call a couple companies and ask them to drive by and give you an estimate on things.

Safety, as well.

For safety you can install GFCI outlets in the places that need them and put the sticker on them that says ungrounded.

The rent I am seeing for a  1990 and newer 1200 sq ft 3 bed, 2 bath, 2 car garage is safety $1100 to $1200 and the homes on the MLS I am finding is over 140k.

But  one of them is an email in the public record for the property in Inglewood building and safety explaining that two inspectors approved the unpermitted changes to the property. 

(I'm thinking about calling an inspector to get an itemized list of repairs to prioritize and present to general contractors)

I think you approach it from the safety issue.  

I will happily pay an extra $500-1000 to make sure I have large safety net for my other 107 rental units. 

http://www.balanceprocess.com/what-is-a-non-warran... says:Projects where a single entity owns more than 10% of the total units (for projects with 21 or more units).Project has inadequate insurance coverage.Condo project has similar characteristics and is managed as a hotel (condotel)Project (HOA, sponsor, developer) is in litigation that relates to safety, structural soundness, functional use or habitability of the project.New construction condos.Established condos that have additional phases in need of completion.High percentage of non-owner occupied units.High number of units being delinquent on association dues for more than 60 days.Project budget is not appropriately structured.