NYC ROI for Basement 3rd Bedroom & 2nd Bathroom in & Violations Q

[Levin Angeles]

In my area the general demand is for 3 bedrooms and 2 bathrooms.  Is there a difference if that 3rd bedroom and 2nd bathroom comes from the basement?  I'm interested in one such 2 bedroom single bathroom property with an unfinished basement.

On another note, how much of a barrier to sale does a standing violation.  I'm in discussions with my wife about selling our current house as an option to free up more capital.  When we bought the house, it came with what I consider a minor violation.  There's a brick fence on the front property line that also partially straddles the boundary with a neighbor who confirmed with me that they didn't think it was a big deal.  It adds a lot of curb appeal as it's connected to brick arches as well, so we decided accept the violation so the deal could go through.  So would removing the violation be a good investment?  How often will buyers withdraw their offers over such violations?