When it comes to furniture/design it depends.

My experience is those have been in short supply since beginning of time. 

Then hire a handyman to put everything together.Rooms to go sells whole rooms full of furniture, sometimes at zero interest.

We don't spend anywhere near that much nor do we go through 2k worth of linens, kitchen stuff or furniture.

We’ve seen this issue cause otherwise wonderful new builds to sit on the market because it just doesn’t work with peoples furniture. 

• How do leases typically handle furniture/appliance damage or wear?

Basic staging with an agent usually means they give you insight into how you should:Declutter and depersonalize by removing photos and personal itemsArrange your furniture to improve the room’s flow and make it feel biggerAdd plants, move art, or re-arrange other accessoriesFull-service staging is another option if your house needs more hands-on attention.

Security Deposit: 2600Lease states no smoking/painting walls/no hanging things on wallsTenants have moved out and have left two truck loads of garbage to be removed.Damaged doorPainted walls which got on the ceiling and trim Lots of holes on the walls throughout the houseDamage from windows being left open constantly Weed was clearly smoked in the house (smell throughout the place) so we need to deep cleanWater bill wasn't paid so I had to turn back on utilityMissing keyQuoted costs:$450 junk removal (some furniture)$935 for damaged doors/windows, painting cleaning$30 for utility turn onTenants were only there for a year before moving out so a lot of this is beyond normal wear and tear. 

One thing that I find frustrating is categorizing same year capital deductions (e.g. furniture that is able to be deducted in the same year due to 179).  

Furnished vs. non-furnished quite obviously places ownership of the furniture with the landlord.