Based on comps, rents can be increased to $1,000-$1,200 per unit after rehab.Rehab: It needs an estimate of $50k-$60k of TLC (re-staining the decks/replacing planks, modestly updating a few of the kitchens, replace floors/carpets for a few units, repainting parking lot, converting an office into a 1BR).

It has always been painted since 1955, and it would be impossible to remove all the paint in order to stain it.

 Assuming the Exterior is completely dried in, the next steps to finish the project would be:Drywall or Wall Finish - a Cabin in Montana might prefer a Wood Finish instead of the Drywall we typically use in Arizona - Possibly a combination of both; I suspect Drywall would be least expensive but maybe not as Aesthetically correct.Assume an inspection is required to confirm proper Nailing of Wallboard prior to next steps - Make sure Wiring and Plumbing passed inspection prior to installing Wallboard.Tape, Texture, and Paint - If Drywall is used, not required for a Wood Wall Finish, but Wood might need to be Stained and Sealed.Flooring - Carpet, Tile, WoodMillwork - Cabinets and CountertopsElectrical Trim - Includes installation of Electrical Outlets, Switches, and Light Fixtures. 

The cleaners could not get stains off.

When the tenant vacated, the pavers looked like they are now 20 years old, there are stains and it was power washed, but those stains/discoloration are still there.

One agent said it didn't have good curb appeal but the HOA said no to staining the brick exterior front to make it look newer and changing the building entry door.Property is at - 1304 Adams Street NE, Unit 2, Washington, DC. 20018 

Or if you have any feedback please post it on the thread - cosmetic wise, I'd like to see them remodel the master bath which I could help them do, touch up some stain in areas, among a few other minor things to really make the house pop.  

I would take advantage of the inspection to ask for additional amounts off for serious issues if applicable, so for example not for a chip in a window, a scratch on some drywall, or a stain in the carpet, but if the roof needs to be patched or replaced, the HVAC is dated or needs to be replaced, water damage, termites, pests, radon, structural, mold, foundation, anything serious that might pop up as a result of an inspection.

I have a question regarding floor staining and was seeking input.  

I've also been lightly sanding existing wooden cabinets and using polyshade to stain them dark.