Many title companies will shy away from a tax lien foreclosure for several years.

most insurance carriers are middle men who broker a connection to a construction policy carrier and add 10% on top for themselves. the key is to find an insurance broker that the construction policy company pays to derive business for them so you get your policy at cost and will help shop with multiple providers to get you the most competitive terms 

The insurance company sent us a letter telling us they will be dropping us for that reason as well.

Since you’ve already got quotes from the big names, try checking with companies that specialize in investment properties or multi-family units—they can sometimes offer better coverage options tailored for rentals.

Seems like one of those alarmist asset protection companies who is a fee collector.

When you get to PM companies that are 100++ units they typically have in house handyman services that do it all so they might not have the connections that you need.The next move is going to local REI meetups...

Finally, I would avoid Property Management Companies. 

Additionally, the macroeconomics here has seen significant growth - population and jobs are both growing, and major companies started moving and developing here (Intel, Google, Amazon, FB, etc).

The macroeconomics is growing - population growth, job growth, and the many companies moving and building out here like Amazon, Meta, Google, Intel, etc.

I grew up in Riverside, and now I'm currently a Loan Officer for a Mortgage Company in San Bernardino County.