Converting Large Bedroom to Two

[Jordan Buys]

I'm considering splitting one large master bedroom into two separate rooms. However when I do so, the second room would not have a closet. 

Would I be able to list this as two rooms on a rental or would I only be able to technically list it as one? Am I required to construct a closet in order to deem it a second room on MLS?

Also, what if I just did french doors separating the rooms rather than a full wall? Would this count as two rooms or is that just one large room with a door?