Eventually you will come up against diminishing returns (replacing two year old non-stained carpets, for example, probably isn't worth it), but these little >20% CoC ROI things add up.

the comps are as follows 1)carpet,tile 2)tile, wood 3)laminate 4)laminate, tile. 

I think the carpet is literally 100 yrs old.  

If the bedroom carpets are ten years old, and they have wear from where they were walked on, I wouldn't charge them.

Tenants tend to stay in SFH's longer than apartment rentals, so I would assume 3-4 years, and turn over could be as simple as a wipe down and carpet cleaning if the PM is doing their job and screening tenants appropriately (although even great screening doesn't always guarantee great, clean tenants).  

"The survey found the worst, most outdated features in homes include linoleum floors (40 percent), popcorn ceilings (29 percent), wood paneling (28 percent), ceramic tile countertops (28 percent), shag carpeting (19 percent) and avocado green appliances (8 percent)."

It's not in too bad shape, but was a smoker's house and hasn't had any cleaning done in years.Based on a quick walk-through I'm looking at internal painting, minimal external painting, carpet replaced (or removed to get to the hardwood floors where possible), a bunch of minor repairs to things like gutters/eaves/etc.In a perfect world, this relationship would continue to care for the property as issues occur in the future.

Nothing exciting here but one of my fears is that a quest's dog will get sprayed by a skunk at our VR in the country and it will get in the house, ruining the carpet & furniture, lol.

You may be ripping up carpets and drywall if it's real bad but still shouldn't be anywhere even close to $48k. 

. * Look for burns in the carpet and on places where one might rest a cigarette, such as a counter top or fireplace mantel.Note: Cigarette smoke will leave a yellow tar residue that can be easily seen in furnace filters and on cleaning wipes.