Are they serious (as in cracked foundations and bad roofs) or cosmetic (like new appliances and counter tops). 

., super fancy granite counter tops) but "solid" (mid-level in price/quality) that give the ADU a modern look and feel and a foundation of materials that would last a fairly long time without being refurbished.She is getting quotes with a fairly wide range, from $140K all the way up to $190K.Thanks in advance!

my tenant completely trashed my place, deposit will not even cover the junk removal service I called my insurance (USAA) the adjuster showed up and was very helpful : turns out Trashing the place is not covered BUT (blessing in disguise) I have water damage under the kitchen sink and the laminated floors/tiles walls , countertop  Etc needs replacing and I'm expecting a seizable payout My challenge : Does contracting with a property management company will help me avoid this scenario in the future ?

It's not just types of countertops, kinds of flooring, and numbers of bedrooms.

Do the countertops needs to be granite or is it okay to go with a less expensive option?

@Moritz BodeIn no particular order:central ACNew/refinished flooringNew appliancesStone countertops On site laundry

Do they offer granite/quartz counter tops and updated appliances? 

I would replace the countertops as well as the appliances/flooring.Does anyone have any personal ideas of theirs for this kitchen set up?

The kitchen has grease stains on the ceiling, blinds, and the countertop looks ruined.

I swear by stainless/ granite, quartz counter tops and a nice sink with large faucet integrated sprayer.