Estimating Cost Repairs-DC

[Francis Dayamba]

I am considering house hacking a multi-unit apartment or a Single Family home (with basement) in DC. When conducting tours of the perspective places, I am not sure how to estimate repairs for major items. I have heard on podcasts that you can ask for prices from Home Depot or similar stores. But I want to be able to generally estimate cost of repairs on the spot. I have also read the biggerpockets articles about estimating repairs.

What are reasonable ESTIMATED costs (material+installation costs) for repair and the general lifetime of the following items:

Tar Roof-Cost per SF 
Shingled Roof-Cost per SF
Water Heater sized for 1 bedroom units
Foundation
Furnace
HVAC
Kitchen
-Granite Counter Tops
-New Cabinets
-Sink
-Refrigerator
Bathroom
-Toilet
-Sink
-Tile floor
-Shower or Bathtub

Major Electrical Issues
Major Plumbing Issues