It's about 2" of fiberglass board for the rigid ducts and about the same 2" fiberglass but more like a batt insulation sandwiched between the inner and outer plastic of the duct itself.

Next time maybe they will listen & cover the new floors with the plastic rolls I provided,

This will cause a wicking effect which would be bad, then finish with a polyethylene (plastic) ground cover.4.

Plus, you're catering to their decorating preferences instead of going with something plan that can stay with the property.Plus, when they move out, chances are they'll want to take them since they paid for half of them.Buy some cheap plastic blinds on your own.

They placed plastic sheeting under the leak to divert the water to the shower.

if you get around to doing demo on the walls you must consider using containment (plastic barriers) to prevent the spread of spores all through the basement.Carefully and slowly cutting small pieces of damaged wallboard is safer than hitting it with a hammer or breaking out large pieces.The EPA has a great guide document on doing it yourself vs. using outside contractors.You are right.

I might try to spray paint the light fixtures and door knobs.I'm not skilled enough to remove all of the facuets without damaging them, but might try to concoct some way to spray paint then with plastic bags to protect what I don't want painted (the sink).

On recent inspection of the unit I noticed the screens on the back patio are all ripped.

My clothes are sitting perisil treated in plastic bins from home depot bc generally if I'm trying to be successful at my treating them with D.E. 

I wanted to put in a new patio, overhang, and possibly a built in BBQ/outdoor kitchen.Which should be the priority?