Glad you made your way here.. are you eyeing long-term rentals or short-term flips?

As long as you're filing jointly, both meeting the 2 yr use test, and either meeting the ownership test, then the full $500k can be claimed. 

As it's been non performing.

Does anyone have any referrals for property managers in the Los Angeles area who specialize/ have experience in mid term rentals? 

We manage 300+ units, I've flipped over 75+ houses in the past 3 years, and I currently own 28 long term rentals.   

I'd sell because you are reaching the time when you lose the cap gains exemption and that $24K would take over 2 years of renting to get back.I had a condo that I owned for a long time and I sold it despite it being paid off and having long term tenants. 

A rider allowing for using your owner-occupied property as a short-term rental for a specific/limited amount of time is very different than an investment property being used as a short or long term rental 100% of the time.Also, telling your home insurance company that you STR your home occasionally does not give you extra coverage for those types of risks, it simply means if your renter burns your home down the insurance company isn't going to immediately deny your claim. 

I’ll be developing more and more and as such looking for a long term collaboration.

How strong is the demand for mid-term in Denver?

There are many companies that perform a good work.