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.  

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.

They wanted quality of life, and have found that living in Montana but making California wages works out well for them. 

City road ends at park entrance.Considering the land price, infrastructure setup cost each lot cost was coming around $7300 which was very attractive even though most of the houses on them were old and needed good repairs.All other lots except the 59 were in considerable good condition and our due diligence showed that whole park value is going down due to these 59 lots mismanagement for 40 years.As per owner rent collections were around $7200 per month and most of the tenants were very long term (average rent $400 per home) which he receives in cash so bank rolls available to validate.As per our estimate, each house needed 7k to 8k repair to make it livable.Negatives:These homes/lots were owned by same owner for 40 years and he neglected everything which includes tenant quality, infrastructure (such as overgrown trees, bad homes still in the park which should have been removed years back, 3ft- 4ft potholes on the road since its privately owned).Most of the tenants were convicted or had some big felony, these houses were famous for drugs cartels in whole city.After buying we realized things were way worse than what we assumed in due diligence:People staying there actually were involved in gang wars, prostitution, drugs etc.