After Repair Value: $130,000Closing Costs at time of purchase: $2929Monthly Holding Costs: $1,370Interest Payments: $570Property Taxes: $620Electricity: $50Water: $30Insurance $100Number of months holding costs: 9Total carrying costs: $21,889Repairs $47,242 + 10% Contingency = $51,966 TASK UNIT Materials Needed Line Item Cost Asphalt Shingles Per Square 20 $4,400.00 Aluminum Gutter Per LF 150 $675.00 Pressure Wash Per House 1 $150.00 Vinyl Siding Per Square 1 $265.00 Paint Exterior Per Floor SF 100 $137.50 Lawn Maintenance Per 1/4 Acre 2 $70.00 Trim Bushes Per Yard 3 $120.00 Remove Tree Per Tree $1,000.00 Fix Foundation Wall Per LF 60 $9,000.00 Roll-Off Dumpster Dumpster 1 $350.00 Full Demo Per SF 2400 $960.00 Service Call Per Hour 8 $680.00 Natural Gas Hot Water Heater - 50 Gallon Per House 1 $710.00 Replace All Supply Lines Per Fixture 5 $1,000.00 Install/Replace Tub Per Tub 1 $350.00 Build Tile Shower Per SF 70 $1,365.00 Kitchen Sink Per Sink 1 $120.00 Bathroom Sink Per Sink 2 $140.00 Kitchen Faucet Per Sink 1 $90.00 Bathroom Faucet Per Sink 2 $140.00 Trim Kit Only Per Tub 1 $130.00 Install/Replace Toilet Per Toilet 2 $340.00 Install Dishwasher Per House 1 $430.00 Install Can Light Per Can 10 $650.00 Replace Furnace Per Unit 1 $1,100.00 Loose-Fill Insulation Per SF 100 $100.00 Wall Board Per SF 1000 $1,160.00 Exterior Door Per Door 1 $800.00 Interior Door Per Door 10 $1,700.00 Replace Window Per Window 10 $2,000.00 Repaint Per Floor SF 1400 $3,150.00 Install Kitchen Cabinets Per linear inch 240 $2,040.00 25" Vanity Per Vanity 2 $300.00 Granite Countertops Per SF 50 $1,600.00 Install Carpet/Pad Per SY 45 $180.00 Carpet+Pad Material Per SF 400 $700.00 Install Laminate Wood Per SF 1300 $3,250.00 Install Tile Per SF 100 $550.00 Permits Per House 1 $200.00 Refrigerator Per Appliance 1 $1,100.00 Range Per Appliance 1 $900.00 Dishwasher Per Appliance 1 $700.00 Microwave Per Appliance 1 $440.00 Washer/Dryer Set Per Set 1 $2,000.00 Commission to Realtor at time of Sale 7% - $9,100Offer Price: $32,000 Potential Profit: $23,044

My thoughts are that it is anything the builder may have installed that is not covered under the "product" category, which Item #2 covers.

I looked the bathroom trim being offset with tile.

If you can't get the piece out, you can simple fold the top into the hole and patch over it. if you want to re-install the rail into the deck, you may have to have new holes core drilled into the concrete. 

Install a crawlspace well or window well/ventcover, depending on size of vent.

It is also clear some of the work done on the house is shoddy (forgot to pain ceiling under the cabinets while they were being replaced, didn't complete the tiling of the floor up to the wall, painted windows shut with sloppy paint all over windows, supposedly fixed termite damage- but placed a beam next to a damaged beam in one corner of the house only). 

To me, above a 1/2" sub floor, under cement board and tile, the 4 ply would be just fine, cheaper and quicker to go get.Contractors tend to shy away from big box products and prefer a lumber/supply house product.

Hand cut over 250 ceiling tiles.

(I apologize for the format; my copy is in columns and it did not transfer very well.)Move-Out Charge SheetCleaningClean refrigerator $25.00Clean stove top $10.00Clean oven $30.00Clean kitchen cabinets $30.00Clean kitchen floor $25.00Clean kitchen countertops $15.00Clean tub/shower surround $30.00Clean sink $15.00Clean toilet $20.00Clean bathroom cabinets & floor $20.00Window cleaning (per window) $10.00Vacuum/sweep through dwelling $40.00FlooringRepair carpet $85.00Replace linoleum $6/sq. ft.Replace floor tile $75.00 ea.Replace laminate flooring $10/sq. ft.WallsRemove/treat mildew (per surface) $15.00Repair hole in wall $55.00Repaint (per wall/ceiling) $40.00DoorsReplace door (interior) $165.00Replace door (exterior) $485.00Replace weather stripping $25.00ElectricalReplace light bulb $3.00Replace light fixture globe $20.00Replace light fixture $65.00Replace electrical outlet/switch $15.00Replace electrical cover plate $2.00PlumbingReplace kitchen faucet $150.00Replace bathroom faucet $105.00Replace faucet handle $20.00Replace faucet aerator $10.50Replace shower head $27.00Replace toilet $175.00Replace toilet seat $25.00LocksReplace key (door or mailbox) $10.00Replace cylindrical door lock $35.00Replace deadbolt lock $25.00Windows and Window CoveringsReplace window pane (single) $75.00Replace window pane (double) $125.00Replace mini blind $20.00Rescreen window screen $25.00Replace window screen and frame $50.00MiscellaneousReplace refrigerator shelf $25.00Replace stove/oven knob $20.00Replace plastic countertop $275.00Replace mirror $45.00Replace medicine cabinet $75.00Replace towel bar $25.00Replace shower curtain rod $25.00Replace shower curtain & rings $13.00Replace shower/tub enclosure $350.00Replace thermostat $80.00Replace fire extinguisher $30.00Remove junk and debris (per area) $35.00Replace smoke detector $15.00Replace combo detector/alarm $40.00Replace alarm battery (per battery) $2.00Replace drop ceiling tile $10.00Replace wireless doorbell $35.00Replace portable window screen $10.00Actual charges may vary based on condition and/or vendor bill.

They changed out the tops to granite to match the kitchen but other than that it still have ugly vynal, ugly 80s small white square tile in the tub.