But you can still invest in other markets if you put together a "quality" team of people in the area you want to invest.

Look through the lease (hopefully there is a lease) that they signed with the previous owner, if the lease seems to be decent and everything is documented like it should be (security deposit, move in checklist, etc) there is a better chance if the tenants are better quality. 

A quality tenant is worth it IMO and I can still make the numbers work with their current rent.

I also find it has a higher quality tenant.

A good PM is the key to ensuring you get quality tenants at the right rents. 

A top quality BRRRR will leave no cash in the deal, meaning you can scale infinitely.

It has quality content.

The justification I have for it is that virtually any other investor who hired us to do work would be getting the same amount of work done and paying my rate as well as my employees rates... functionally putting them in debt the same amount I would be-- and since I am doing the work of scheduling, ordering materials, overseeing, carrying insurance, quality control etc. etc. it makes sense that I be paid for that work, even if I am my own client. 

Or does it make sense to just address the items that will cause ongoing maintenance headaches or lower the quality of living for the tenants, but leave the 'bones' of the house as-is?

Most people might miss this little nugget, but it is a quick way to determine the lack of demand and where lot rent should be in the market.Next, call the similar quality parks in the area.