The issue here is and I've seen my share of listings that are a coverted two bedroom. Most of the time the bedroom and the so called second bedroom do have windows "but" I've also seen where the second room does not. This bait and switch crap has to stop, call it what it is and don't sugar coat it. Rentals are known for this swith, go figure.

Hi Eduardo. To be considered a bedroom, there must be a window. Otherwise it is usually referred to as a "home office." Ktichens and baths however do not have to have windows.

There ios no such thing as a non windowed Bedroom.
To qualify as a Bedroom legally in NY it must have a non-lot line window and bne a min of (I think) 78 Square Feet.

And just putting up a wall with a window seperating off a part of a unit does not make a bedroom by the legal definition, the Certificate of Occupancy also determines that.