Quote from @Theresa Harris: He should have a portable AC unit in his bedroom, but if they (the tenant) are causing damages/excessive wear and tear, do not renew their lease. 

The Tenant Classgreatly impacts rental income stability and property maintenance/damage by tenants.Both Property Classand Tenant Class affect what type of contractors, handymen and property management companies will work on a property.If you buy & renovate a property in Class D area to Class A standards, what Tenant Class will rent it?

At inspection tenant is charged for all tenant caused damage and most damage is fixed shortly after the inspection.  

General inspections usually indicate and other damage or issues.

The Tenant Classgreatly impacts rental income stability and property maintenance/damage by tenants.Both Property Classand Tenant Class affect what type of contractors, handymen and property management companies will work on a property.If you buy & renovate a property in Class D area to Class A standards, what Tenant Class will rent it?

The insurance company will argue with you about the cause of the damage to wear you out to try and pay less than what should be paid.

One thing that might be worth checking—does your insurance cover any of the secondary damage from the sewer backup or electrical issues?

They're okay on inside cleanliness (toilets haven't been done in a while) and landscapers have caused some damage to siding with their equipment.

However, should it damage anything, you can charge to have those items repaired. 

The Tenant Classgreatly impacts rental income stability and property maintenance/damage by tenants.Both Property Classand Tenant Class affect what type of contractors, handymen and property management companies will work on a property.If you buy & renovate a property in Class D area to Class A standards, what Tenant Class will rent it?