Normal wear and tear would be cleaning and painting without need for primering or multiple coats. 

If there is already hardwood, refinish with 3 coats of polyurethae.

Should I just paint it, skim-coat, or remove and replace with drywall?   

For some that can mean salvaging a piece of the slab and for others it can mean a fresh coat of paint?

He showed me , There was 1 picture where I could see my tools layed out on a picnic table while I was working and I was in the picture (wearing the same coat I had on in his office)I asked him to go back to 2006 on 1 property and show the progression , I showed him where I have been removing buildings and they need to be deleted from the tax records .

If your contract states that a certain outcome is expected,  such as house trim painted (rather than house trim will be painted with a horse hair brush with two  coats of paint with brush strokes in both horizontal and vertical direction)  and a general time schedule, such as completed by a certain date (rather than will work 8 am to 3 pm Mon through Fri) then you have a better chance of saying the person is a contractor or independent business rather than an employee.Think of how you deal with a plumber--The toilet is clogged. 

Most medical professionals just read The White Coat Investor and think they've got it figured out so congratulations to you for taking a step further. 

These are the house stats: ¼ Acre LotCity Water and SewerFull Basement1500 Square FeetOpen concept living roomFinished will have 2 full baths, 3 bedroomsFinished bonus room in basement Was used as a bedroom but doesn’t have the proper egressFenced in backyardCan lighting in all bedrooms, living room, and kitchenNo garage, paved driveway fits 4 medium sized carsSquare Footage:Basement: 938 sfIst Floor: 844 sf2nd Floor: 533 sfFinalizing the Flip would require: Mounting and finishing drywall on first and second floorFinishing the partially roughed in bathroom on first floor Water supplies are ready just under the floorboardsSewer outlet is just under bathroom, PVC drains need to be roughed inElectrical wire is run from the panel to bathroom fan, lighting, and outletBathroom fan/light is installed, needs duct added to vent outsideNeeds greenboard drywall, flooring, toilet, vanity, shower/tub surround4 doors for first floor bathrooms and three bedrooms4 closet doors, 1 for first floor coat closet, and 3 for bedroom closetsFirst floor bedroom Subfloor replacement in first floor bedroom (some original floor boards are weak)Connection of electrical outlets - conduit roughed in but needs to be connected to panelDrywall mounted, finished, and painted throughoutFlooring throughout except for kitchen, I suggest tile in front entryway into first floor bathroom, laminate in open concept living room up to the kitchen, carpet the rest.Minor drywall patching and painting in Kitchen and basement bathroomTrim/baseboards installed and painted around all doors, bottom of drywall, and windowsProper railing for both stairwaysPower wash sidingMinor landscaping, just needs some mulch in beds and some minor weeding in flower beds.Two fence panels replaced in back yardBasement bathroom needs minor touch-ups on grout and caulking Other issues that may need addressing or could just be disclosed upon sale: Two minor basement leaks only when there is a TON of rain, otherwise basement is dryWarped siding in backyard where grill used to be, could be replacedSmall area of cracked siding on front of house at end of drivewayDriveway isn’t in the best condition, some patching may make it look betterAll work done on house has not been permitted except for siding and roofPlumbing Ventilation isn’t 100% to code and may come up in an inspection Side notes: When I lived there, people didn’t believe my address was real when getting deliveries because of the marijuana culture around the number 420 and the street name of Highmoor, maybe there is play here selling to someone that is into that stuff?

Details are as follow, duplex with 6 beds 2 baths, 2592sqft, seller listed property as needing only cosmetic repairs but based on the pictures I assessed that both units would need updated kitchens and baths, a fresh coat of paint, new windows.

Coat will be around $1500 to attempt to retrieve $4300.