ALL of my major problem tenants happened to have had a average (adults in the household) score below 625. 

Household Debt Rose by $184 Billion in Q1 2024; Delinquency Transition Rates Increased Across All Debt TypesMay 14, 2024

Rather than go with a classic arcade style game that I would like, they got crazy excited at the idea of a PS5 with a game subscription.

Is it better to diversify your portfolio in one geography, tenant base, style of property (SFH, Multifamily, Apartment).

Do you screen all adults in the household or just the person paying the rent? 

Quote from @Christian Styles: Potentially able to help you find someone but I would need to know specifically where the property is in order to know who to recommend.  

You have to get someone who is familiar with them and would want one.Here is a pic of this style of construction.

If the area can support new construction, determine the best style, size, and type of new build for that area.3.

Use of Euro-style wall units for air-con.. 

To remedy that, the carpets should be ripped up and sealant applied to the subfloor, at minimum.There are also tiles in the smaller upstairs bathroom that are lifting up and creating a safety hazard; putting a rug on top is not a sufficient solution.The house is in a condition that materially interferes with the health of household members.