Places like Maplewood, Richmond Heights, Affton, etc. would be where I would start (if looking at long term rentals).

I would say it depends on if the property is a pain and what your long term goals are.

The repair costs will take multiple years to recoup and with the age of the property I'm concerned if it's even worth holding long term or get out while I can before I fall into a money pit and get stuck.  

Read your insurance policy before making a claim as I think most do not cover long-term damage especially if it could be easily found and mitigated.

@Tricia O'Brien yes I would recommend them and they currently manage two of my SFH properties (long distance investing).

If it breaks when someone is in there, what is the rental income you would lose and how long would it take?

Long-term rental with substantial services provided.

The west coast markets have traditionally been appreciation markets, and if you are not forced to sell and can hold long term, risk diminishes.

I've closed a decent number of DSCR loans in Virginia in the last 12 months and $600/unit seems reasonable.

I would buy another property before I would pay down debt, as long as my rentals are saving money for themselves.