You need to remove dirt and mould anyway before you paint or stain.

Thicker drywall (5/8s instead of 3/8)Stain resistant paint or at least easy to clean up paint (this may vary cause in most causes tenants put so much holes and dents in walls, the turnover for rentals usually require repainting anyways)Easy to clean back splash (less grout = less stuck dirt, so consider the size material)Countertop type (granite and marble stains and require to be polished and resealed eventually; quartz is stronger and stain resistant, but cost twice as much)For appliances, I suggest going to local appliance stores not big box stores.  

Make sure to use something that won't stain your tub/sink--different materials have different restrictions.You already have this property, so I guess you should go forward, but you clearly don't know enough about home construction to do rehabs at all right now and certainly not older ones. 

Zero problems with stains etc.

Cost includes rough and finish sanding existing hardwood floors, applying stain, and aminimum of three (3) polyurethane coats on approximately 450 square feet.

He pointed out that the drawers are actually mostly vinyl, which did seem durable and easy to clean, and won’t stain the drawer bottoms like wood will.

They replaced things with their maintenance crew...carpet completely black with stains, and it was carpet they replaced once before and not what was there when they moved in 6 months prior. 

You can paint them white, stain them or apply a whitewash. 

We have long wet winters and carpet is just asking for water, bugs, mold and stains.

*I do not agree with every price on the list but it's a good start*CLEANINGClean refrigerator 70.00 Clean stovetop 30.00 Replace stove drip-bowls 28.00 Clean oven 50.00 Clean stove hood 30.00 Clean kitchen cabinets 45.00 Clean kitchen floor 50.00 Clean tub/shower and surround (ea.) 30.00 Clean toilet and sink (per bath) 20.00 Clean bathroom. cabinets and floor 25.00 Clean carpets (per room) 75.00 Vacuum throughout dwelling 40.00 Window cleaning (per unit) 11.00 Clean greasy parking spaces (ea.) 25.00 Clean fireplace 35.00 FLOORING Remove carpet stains 80.00 Cigarette burn in carpet/floor 80.00 Deodorize carpet 80.00 Repair carpet 150.00 Repair hardwood floor 95.00 Refinish hardwood floor 380.00 Repair linoleum 85.00 Replace bathroom linoleum 385.00 Replace kitchen linoleum 385.00 Replace floor tile 75.00 Replace ceramic tile 150.00 WALLS Remove mildew and treat surface 25.00 Cover crayon/marker/pen marks 35.00 Repair hole in wall 55.00 Remove wallpaper 145.00 Repaint (per wall/ceiling) 20.00 DOORS Repair hole in hollow core door 55.00 Repair forced door damage 75.00 Replace door (inside) 155.00 Replace door (outside) 285.00 Replace sliding glass door 775.00 Replace sliding door screen 65.00 ELECTRICAL Replace light bulb 2.50 Replace light fixture globe 12.00 Replace light fixture 55.00 Replace electrical outlet/switch 12.00 Replace electrical cover plate 5.50 PLUMBING Replace kitchen faucet 195.00 Replace bathroom faucet 195.00 Replace shower head 24.00 Replace toilet tank lid 45.00 Replace toilet seat 35.00 Replace toilet 265.00 Replace garbage disposer 125.00 Snake Toilet 45.00 Clear sewer/cesspool line 95.00 WINDOWS & TREATMENTS Replace window pane 75.00 Replace Venetian or Mini blind (ea) 75.00 Replace window shade 15.00 Replace window screen 25.00 Replace Vertical Blinds (Sl.