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?

I think you have a solid basis to sue them for all of the damage - though getting them to pay will probably be difficult.I only asked about them being related to you because such a situation can cause awkward moments at the next family reunion!

We deducted the cost of cleaning the home, the carpet, and some other drywall and paint damage to the property. 

Granted, after 30 years the place is a pig sty, but if he goes quietly, no malicious damage, I would most likely return his damage in full. 

Then you have the brain damage of dealing with the insurance company.

Listing them as an “Additional Insured” rather than just an “Additional Interest” will also safeguard both parties.For the LTR unit, your landlord policy should include property damage, at least $500K in liability, and loss of rental income.

Yes, credit and background checks are still advised—a thorough screening can mean the difference between a great tenant and months of lost rent or damage.

Even if you have to run new wires, long, bendable drill bits minimize damages.

I typically only charge for real damage to walls.

I have heard from people I know near the fires (including one who's house is the only one left on his block in the Palisades and one in a similar situation in Altadena) that smoke damage was not covered by their fire insurance..Hard to say what I'd do in your shoes since it sounds like it's more than a financial investment.