The quality of service from my current property management company has degraded over time and I'm looking to switch.Thanks!

They are not free but give you an extra layer of quality control and accountability.  

The Colorado State document on this fire does not specifically mention any indoor air quality inspections.

From the past, I did 1031 this into a duplex unit I am holding.This was a fantastic fix and flip done correctly with quality workmanship and proper time involved to give the end user a quality home.https://www.zillow.com/homedetails/4264-Feather-Ave-San-Diego-CA-92117/16913489_zpid/ How did you find this deal and how did you negotiate it?

Good quality bookkeeper will cost you money.

Also, would it be most advantageous to begin our investing journey by managing the subs (checking the quality of their work) and getting multiple quotes from vendors rather than rolling up our sleeves?

Good quality locations typically keep tenants longer.  

I am also looking for a potential website or company that can find this information for me and help me speed up the process because thus far it is relatively time consuming locating the multifamily then finding the owners contact information, etc.

Since that's a long term hold, you will be enjoying quality rents and tenants for years to come 😀You wrote that you financed it with a conventional loan, but you also said that you put in 17K on a 580K purchase price, which seems like 3%/FHA.

These will be some great steps to take to quickly get up to speed.