Estimate Repair Cost for Baltimore City, Maryland Exterior CarpentryMetricRetail (Fix & Flip)Rental (Buy & Hold)Porch railingPer 6’ section120120Replace bandboardPer 12’ section550550Replace clapboardPer board foot$5-10$5-10Wood porchper square foot$ 25 +up $25+up$ 25 +up $25+upReplace porch supporteach$75 – 100$75 – 100Replace wood trimper linear foot$4$4Concrete WorkSidewalks (4 ft wide)per linear foot$40$40Stairsper stair$60$60Driveways (8 ft wide)per linear foot$275$275Concrete porchper square foot$ 25 – 30$ 25 – 30Retaining wallper square foot face$40$40Brick Tuckpointingper linear foot$10$10Painting – ExteriorScraping, prepping, primer, paintper square foot$2$2Minor prep, paintper square foot$ 1 - 1.50$ 1 - 1.50Paint Foundationper square foot$1.50$1.50Siding (installed with insulation and wrapping)Vinyl, stock colors, medium gradeper square$250$250Additional Storiesper square additional$50$50HardieboardPer square$425n/aReplace missing sidingper linear foot$5$5Aluminum Wrapper linear foot$10$10RoofingTear off and disposalper square per layer$100$100New deckingper 4 x 8 sheet$ 40 – 50$ 40 – 50New fiberglass shingles (dimensional)per square$200$200Each additional story after 1stper square$503 tab shingles instead of dimensionaljobN/A-$200Soffit repairPer linear foot$4$4

I know I can get Lifeproof LVP installed and trimmed out here for $6/sft, but again, not sure if that is low/high/about right for your area.When I first started out, I spent a LOT of time at Lowes, HD, and Menards and made a big spreadsheet with pricing of commonly used materials (appliances, cabinets, doors, windows, trim, flooring, paint, shingles, etc.). 

No, they might patch it or replace a few shingles, but making you whole does not mean putting on a new $5,000 roof because you have a leak.

Things like a flat rubber roof vs a pitched shingle roof.

If they have a deposit, I would leave the dish and plan to have a roofer take it off, patch the underlayment and replace the shingles as they see fit and take it out of the deposit.

The agreement was that they would leave off the remaining deck board and the shingles. 

His label of marginal was due to two major flags:Roof (algae, moss, some shingle cuppage)Garage (stand-alone, in need of a total rebuild, which won't be as expensive as the roof of the house).

You will typically get 15-20 years out of a standard 3-tab style strip shingle depending on pitch of roof and exposure to the sun, trees etc...Long story short, for a flip you may want to replace it to remove the roof as a potential negotiating point for the future buyer in trying to beat you up on price.

If the roof has several layers of shingles, make sure there are no signs of sagging or warping.

They can throw in things like upgraded countertops or longer life shingles that other lenders simply cannot do.