I don't yet have an estimate on cost.I've never used insurance for something like this because A) I've never had an expensive repair and B) I fix most stuff myself on my Denver units.Question is: Should I file a claim or will the insurance company raise my rates so much that it makes it not worth it. 

We also have interest from some new car companies that are looking at the facilities in Windsor for re-purposing to use for EV manufacturing.

There are definitely some hiccups with it being a small company, but I do have to say that their response time on tickets is really fast.  

has anyone had positive/negative results in dealing with a company called 212 Loans?

With your experience and possible skillset, perhaps finding a company to sponsor you for a green card may be a better option? 

Get in contact with a 1031 exchange company during the transaction and roll it into another property perhaps.

I can accurately estimate utility costs as most util companies have estimated usages and amounts on their websites, but costs like maintenance, CapEx, make ready, etc., are much harder to estimate.

That could be your PM company if you plan to hire one. 

I'm from Louisville KY and traveled to Bloomington for a Big Box company as a trainer.

Hire a property management company who will manage it for you.