I was taught from an inspector that the black on the underside of the roof is a stain from previous mold and if the right condition arise again, the mold would come back if not treated.

. $1.75/ft for sanding, staining, and 2 coats of poly@Cosmo Lee No not first flip.

they need to be cleaned + 2 clear tops . or sand, stain darker, 3 clear tops.

After we closed on the deal, we went in got some measurements, took pics, met with the girls that currently worked there and got a plan in mind.The salon was running itself, so for 2 months we stained wood, built benches and seating, put all of the old equipment up for sale.

@David Wolf What's the big ugly stain on the back of the building?

What color floor stain do you use on hardwoods?

For really high end finishes and upgrades, count on $300 per sq. ft.So, if you are talking mid level higher end homes in CA and just the interior (no windows, stucco, roof, foundation,  landscaping, etc) then the price is under those figures.In my Beverly Hills flip, it is just over 3000 sq. ft. and the interior portion of the rehab (demo, architectural design, engineering, rough framing - added load bearing beams, moved load bearing walls, low voltage wiring, rough electrical and plumbing (some existing is used) or repositioned), finish electrical and plumbing, flooring (wood) plus tile in bathrooms and kitchen, new interior solid core doors and hardware, drywall (about 40%- 50% of existing was used), paint, custom cabinetry with custom stain, cabinet hardware, kitchen appliances - Viking) all of this will run me about $250k or just over $80 per sq. ft. not including any permit fees or project manager fees.Now, I am also doing new windows and exterior doors and sliders, roof, landscaping, decking, BBQ buildout, etc. and my total budget is $350k ($113 per sq. ft.) 

If they decide to move after that, they will be in breach of the lease agreement.It is very possible that a pet stain has soiled through to the pad.  

Some things to look out for when painting brick: stains, yellowing, cracks, mortar issues and the "reason" for wanting to paint the brick."

Install Stain Master Vinyl plank floating floors to all rooms.