Selling in Dumbo?

just have the apartment professionally cleaned. If it is an unusual, difficult to visualise layout, it might be worth staging. Speak to your agent and they can usually help. In Dumbo you should have no issues finding a buyer... unless the building isn't financially sound or the listing is very expensive!

as long as the walls aren't in really bad condition, i wouldn't bother spending the money painting. take some magic eraser to major scuff marks and do a good deep clean and leave it at that. you are right that whoever moves in will paint anyway.

I agree with you, new homeowners probably want to paint the house in color that they like. So, I would rather focus on cleaning. Pay attention on the rooms that potential buyers are most interested in - living room, dining room, kitchen and bathroom. Look at each room as a buyer might and see what catches the eye first.
And good luck! I hope you will have a good deal.